Instruction Manual

Form 589
Type 99
March 2012

Type 99 Pressure reducing regulator

W2676

Figure 1. Type 99 Regulator with Type 61H (High Pressure) Pilot

introduction
Scope of the Manual
A Type 99 regulator has a Type 61L, 61LE, or 61LD
This manual describes and provides instructions for (low pressure); Type 61H (high pressure); or Type 61HP
installation, startup, adjustment, and parts ordering (extra high pressure) pilot integrally mounted to the
information of Type 99 pressure reducing regulator actuator casing as shown in Figure 1. The Type 99
complete with standard P590 Series integral filter. regulator can handle up to 1000 psig / 69.0 bar inlet
Information on other equipment used with this pressure (the 1000 psig / 69.0 bar regulator requires a
regulator can be found in separate manuals. Type 1301F pilot supply regulator and a Type H110
pop relief valve). The pilot supply regulator reduces
Description inlet pressure to a usable 200 psig / 14 bar for the
The Type 99 gas regulator provides a broad capacity extra high-pressure pilot. The standard Type 99
for controlled pressure ranges and capacities regulator comes with O-ring seals on the guide
in a wide variety of distribution, industrial, and bushing and valve carrier to keep main valve body
commercial applications. outlet pressure from interfering with outlet pressure in
the lower casing assembly.
D100260X012

www.fisherregulators.com
Type 99
Specifications
Specifications and ratings for various Type 99 constructions are listed in the Specifications section below. Some
specifications for a given regulator as it originally comes from the factory are stamped on the nameplates located on
the pilot and actuator spring cases. An additional nameplate may be installed on the pilot to indicate a regulator with
O-ring stem seal. These regulators and their installations should be checked for compliance with applicable codes.

Available Constructions Outlet (Control) Pressure Ranges(1)

Type 99L - Type 99 with Type 61L pilot which See Table 1
has 2-inches w.c. to 20 psig / 5 mbar to 1.4 bar Approximate Proportional Bands
pressure range. See Table 2
Type 99LD - Type 99 with Type 61LD pilot which
has a narrower proportional band than the Maximum Allowable Pressure Drop(1)
standard Type 61L pilot. See Table 3
Type 99LE - Type 99 with Type 61LE pilot which Maximum Actuator Pressures(1)
has a broader proportional band than the standard Operating: 100 psig / 6.9 bar
Type 61L pilot. Emergency: 110 psig / 7.6 bar
Type 99H - Type 99 with Type 61H pilot which has
Maximum Pilot Spring Case Pressure for
10 to 65 psig / 0.69 to 4.5 bar pressure range.
Pressure Loading(1)(2)
Type 99HP - Type 99 with Type 61HP pilot has
Types 61L, 61LD, and 61LE: 50 psi / 3.4 bar
35 to 100 psig / 2.4 to 6.9 bar pressure range.
with special steel closing cap
Body Size and End Connection Styles Types 61H and 61HP: 100 psi / 6.9 bar
NPS 2 / DN 50 body with NPT, CL125 FF, CL150 RF,
Minimum Differential Pressure Required for
CL250 RF, and CL300 RF end connections
Full Stroke
Maximum Allowable Inlet Pressure(1) See Table 3
160 psig / 11.0 bar: Type 61LD pilot
Maximum Rated Travel
400 psig / 27.6 bar: Type 61L, 61LE, or 61H pilots
1/4-inch / 6.4 mm
1000 psig / 69.0 bar: Type 61HP pilot, along with
Type 1301F pilot supply regulator and Type H110 Temperature Capabilities(1)
relief valve (1/2-inch / 13 mm orifice only) With Nitrile (NBR) / Neoprene (CR) / Nylon (PA):
See Table 3 -20 to 180°F / -29 to 82°C
With Fluorocarbon (FKM):
0 to 300°F / -18 to 149°C
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. For stability or overpressure protection, a pilot supply regulator may be installed in the pilot supply tubing between the main valve and pilot.

! Warning and/or fire causing property damage and

personal injury or death.
Since a pilot-operated regulator is
Fisher® regulators must be installed,
constructed of both a pilot and a main
operated, and maintained in accordance
valve, care should be used not to exceed
with federal, state, and local codes, rules
the maximum inlet pressure shown on
and regulations, and Emerson Process
the nameplate of either unit. When inlet
Management Regulator Technologies, Inc.
pressure exceeds the pilot limitation, a
(Regulator Technologies) instructions.
pilot supply reducing regulator and/or
relief valve is required. If the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
! Warning could result in a hazardous condition.
Failure to follow these instructions or Call a gas service person to service
to properly install and maintain this the unit. Only a qualified person must
equipment could result in an explosion install or service the regulator.

2
 Type 99

bleed valve
outlet pipe

bleed
orifice

main valve
spring

main
diaphragm

pusher post
assembly pilot
orifice
pilot diaphragm
assembly

inlet

A6814
pilot diaphragm
inlet pressure
outlet pressure
atmospheric pressure pilot control spring

loading pressure
Figure 2. Schematic of Type 99 Regulator with Type 61L (Low Pressure) Pilot
Table 1. Outlet Pressure Ranges

MAXIMUM PILOT Outlet (Control) Pilot Control Spring

Pilot SUPPLY PRESSURE Pressure Ranges Wire Diameter Free Length
type Part Number Color Code
psig bar psig bar Inches mm Inches mm

61L 400 27.6 2 to 4-inches w.c.(1) 5 to 10 mbar(1) 1B558527052 Orange 0.07 1.83 3.78 96.0
3 to 12-inches w.c.(1) 7 to 30 mbar(1) 1C680627222 Unpainted 0.08 2.03 3.00 76.2
0.25 to 2 0.02 to 0.14 1B886327022 Red 0.11 2.77 2.75 69.9
61LD 160 11.0 1 to 5 0.07 to 0.35 1J857827022 Yellow 0.14 3.61 2.75 69.9
2 to 10 0.14 to 0.69 1B886427022 Blue 0.17 4.37 2.88 73.2
5 to 15 0.35 to 1.0 1J857927142 Brown 0.19 4.75 3.03 77.0
61LE 400 27.6
10 to 20 0.69 to 1.4 1B886527022 Green 0.21 5.26 3.13 79.5
61H 400 27.6 10 to 65 0.69 to 4.5 0Y066427022 Green stripe 0.36 9.22 6.00 152
61HP 600 41.4 35 to 100 2.4 to 6.9 1D387227022 Blue 0.20 5.08 1.69 42.9
1. Type 61LD pilot only.

Table 2. Proportional Bands

PILOT CONTROL SPRING
PROPORTIONAL BANDS
PILOT TYPEs Wire Diameter Free Length
Part Number Color Code
Inches mm Inches mm Inch w.c. mbar
1B558527052 Orange 0.075 1.91 4.13 105
61LD 0.1 to 0.5 0.25 to 1
1C680627222 Unpainted 0.080 2.03 3.25 82.6
61L 1B886327022 Red 0.109 2.77 2.75 69.9 1.0 to 2.0 2 to 5
61LD 1B886327022 Red 0.109 2.77 2.75 69.9 0.3 to 1.0 0.62 to 2
61LE 1B886327022 Red 0.109 2.77 2.75 69.9 5.0 to 8.0 12 to 20
1J857827022 Yellow 0.142 3.61 2.75 69.9
1B886427022 Blue 0.172 4.37 2.88 73.2
61L, 61LD, and 61LE 0.1 to 0.3 psi 0.01 to 0.02 bar
1J857927142 Brown 0.187 4.75 2.88 73.2
1B886527022 Green 0.207 5.26 3.13 79.5
61H 0Y066427022 Green stripe 0.363 9.22 6.00 152 0.1 to 0.3 psi 0.01 to 0.02 bar
61HP 1D387227022 Blue 0.200 5.08 1.69 42.9 1.0 to 2.0 psi 0.07 to 0.14 bar

3
Type 99

main valve
downstream spring
control line relief
bleed valve
orifice cap

bleed
main diaphragm valve

relief
valve diaphragm
body

yoke
cap

orifice
yoke
leg
pusher post inlet
assembly pressure
tubing
connection
flange yoke relay
adaptor cap valve

pilot diaphragm
54A2767-a
A2505

inlet pressure pilot spring

outlet pressure
atmospheric pressure
loading pressure

Figure 3. Schematic of Type 99 Regulator with Type 61HP (Extra High Pressure) Pilot

Principle of Operation
The key to the operation of a Type 99 regulator is the In operation, assume the outlet pressure is less than
yoked double-diaphragm pilot. Fast response and the setting of the pilot control spring. The top side
accuracy are made possible by the amplifying effect of the pilot diaphragm assembly will have a lower
of the pressure-balanced pilot and by the two-path pressure than the setting of the spring. Spring forces
control system. The function of the pilot is to sense the diaphragm head assembly upward, opening the
change in the controlled pressure and amplify it into a relay or inlet orifice. Additional loading pressure is
larger change in the loading pressure. Any changes supplied to the pilot body and to the top side of the
in outlet pressure act quickly on both the actuator main diaphragm.
diaphragm and the loading pilot, thus providing the
This creates a higher pressure on the top side of the
precise pressure control that is a characteristic of a
main diaphragm than on the bottom side, forcing the
two-path system.
diaphragm downward. This motion is transmitted
A typical pilot has an approximate gain of 20, which through a lever, which pulls the valve disk open,
means the outlet pressure needs to droop only 1/20 allowing more gas to flow through the valve.
as much as a direct-operated regulator in order to
When the gas demand in the downstream system
obtain the same pressure differences across the main
has been satisfied, the outlet pressure increases.
diaphragm. Advantages of a pilot-operated regulator
The increased pressure is transmitted through the
are high accuracy and high capacity.
downstream control line and acts on top of the
Upstream or inlet pressure is utilized as the operating pilot diaphragm head assembly. This pressure
medium, which is reduced through pilot operation to exceeds the pilot spring setting and forces the head
load the main diaphragm chamber. Tubing connects assembly down, closing the orifice. The loading
the inlet pressure to the pilot through a filter assembly. pressure acting on the main diaphragm bleeds to the
Downstream or outlet pressure registers underneath the downstream system through a small slot between the
main diaphragm through the downstream control line. pilot bleed valve and the bleed orifice.

4
 Type 99

DiSTriBuTiOn PrESSurE
COnTrOL LinE

inTErMEDiaTE PrESSurE
TyPE 161ayW MOniTOring COnTrOL LinE
PiLOT (aLSO rEPrESEnTaTivE
OF TyPE 627-109)

WOrKing
MOniTOr PiLOT
PiLOT SuPPLy LinE

LOaDing
inTErMEDiaTE
PrESSurE
PrESSurE

WOrKing
OPTiOnaL WOrKing
rEguLaTOr
PiLOT SuPPLy MOniTOr
rEguLaTOr rEguLaTOr
OPTiOnaL
PiLOT SuPPLy DiSTriBuTiOn
uPSTrEaM
rEguLaTOr PrESSurE
PrESSurE
20A1389-A
B2484 PiLOT SuPPLy PiPing FOr WOrKing rEguLaTOr WHEn PiLOT iS
rEQuirED TO BE SuPPLiED FrOM uPSTrEaM PrESSurE

Figure 4. Working Monitor Installation

WOrKing
uPSTrEaM rEguLaTOr
rEguLaTOr
(rEQuirES O-ring
STEM SEaL)

10A1386-A
A2503
OPTiOnaL PiLOT
SuPPLy rEguLaTOr

FLEXiBLE arrangEMEnT THaT PErMiTS WiDE-OPEn MOniTOr TO BE EiTHEr uPSTrEaM Or DOWnSTrEaM

uPSTrEaM
rEguLaTOr
(rEQuirES O-ring
STEM SEaL)

OPTiOnaL PiLOT
10A1388-A
A2504
SuPPLy rEguLaTOr

MiniMuM PiPing arrangEMEnT THaT rEQuirES WiDE-OPEn MOniTOr TO aLWayS BE uPSTrEaM

Figure 5. Typical Wide-Open Monitor Installations

5
Type 99
Table 3. Maximum Inlet Pressure, Allowable Pressure Drop and Minimum Differential Pressures

MAXIMUM MAIN VALVE SPRING

MINIMUM
ALLOWABLE
DIFFERENTIAL MAXIMUM
Inlet Pressure
Wire Diameter Free Length PRESSURE FOR FULL disk MATERIAL ORIFICE SIZE(1)(5)
/ Pressure Part
STROKE
Drop Number
psig bar Inches mm Inches mm psig bar Inches mm
25 1.7 1C277127022 0.148 3.76 6.00 152 0.75 0.05 Nitrile (NBR), Fluorocarbon (FKM) 1-1/8 29
50 3.4 1N801927022 0.156 3.96 7.13 181 1.50 0.10 Neoprene (CR), Fluorocarbon (FKM) 1-1/8 29
Nitrile (NBR), Neoprene (CR),
150 10.3 1B883327022 0.187 4.75 6.63 168 3.00 0.21 1-1/8 29
Fluorocarbon (FKM)
Nitrile (NBR), Neoprene (CR),
175(2) 12.1(2) 1B883327022 0.187 4.75 6.63 168 3.00 0.21 7/8 22
Fluorocarbon (FKM)
Nitrile (NBR), Neoprene (CR),
250 17.2 1B883327022 0.187 4.75 6.63 168 3.00 0.21 7/8 22
Fluorocarbon (FKM)
300 20.7 0W019127022 0.281 7.22 6.00 152 10.0 0.69 Nylon (PA) 1-1/8(3) 29(3)
400 27.6 0W019127022 0.281 7.22 6.00 152 10.0 0.69 Nylon (PA) 7/8 22
1000 69.0 0W019127022 0.281 7.22 6.00 152 10.0 0.69 Nylon (PA) 1/2(4)
13(4)
  1. C
 an use all orifice sizes up to maximum size listed. See Table 4.
  2. CL125 FF flanged body only.
  3. 1-1/8-inch / 29 mm is the only orifice available for 300 psig / 20.7 bar maximum inlet pressure regulator.
  4. 1/2-inch / 13 mm is the only orifice available for 1000 psig / 69.0 bar maximum inlet pressure regulator.
  5. O-ring seat construction is only available for 7/8 and 1-1/8-inch / 22 and 29 mm orifice sizes.

Table 4. Orifice Sizes

ORIFICE SIZES
TRIM CONSTRUCTION
Inches mm
Restricted capacity trim,
1/2(1) 13(1)
Straight bore —
3/4 19
Composition or Nylon (PA) disk seat only
Restricted capacity trim(2), 7/8 x 3/8 22 x 10
Stepped bore — 7/8 x 1/2 22 x 13
Composition or Nylon (PA) disk seat only 7/8 x 5/8 22 x 16
Full capacity trim,
7/8 22
Composition or Nylon (PA) disk,
1-1/8 29
or O-ring seat
  1. 1/2-inch / 13 mm is the only orifice size available for 1000 psig / 69.0 bar maximum inlet pressure regulator.
  2. Maximum inlet rating is equivalent to the 7/8-inch / 22 mm orifice.

Normally, excess loading pressure slowly escapes The pilot valve diaphragm acts as a sealing member
downstream around the bleed valve (Figure 2) or for the loading chamber and as a balancing member
through the relief valve body (Figure 3). Since to the upper pilot diaphragm. These two diaphragms
loading pressure needs to exceed outlet pressure are connected by a yoke so any pressure change in
only moderately to stroke the main valve fully open, the pilot chamber has little effect on the position of the
a continued increase in loading pressure differential pilot valve. Therefore, the active diaphragm in the pilot
extends the main diaphragm and the pusher post is the upper pilot diaphragm and the pressure on the
assembly far enough to separate the bleed valve and top side of this diaphragm opposes the force of the
the bleed orifice. This action permits quick dumping of pilot control spring.
excess loading pressure into the downstream system.
With a decrease in loading pressure on top of the main Monitoring Systems
diaphragm, the main spring exerts an upward force on
Monitoring regulators serve as overpressure protection
the diaphragm rod connected to the main diaphragm,
devices to limit system pressure in the event of an
pulling it in an upward direction. This moves the main
open failure of a working regulator feeding the system.
valve towards the seat, decreasing the flow to the
Two methods of using Type 99 regulators in monitoring
downstream system.
applications are:

6
 Type 99
Table 5. Working Monitor Performance

MONITORING PILOT INFORMATION

MINIMUM PRESSURE
Pilot Spring AT WHICH WORKING
Spring Range
Construction Wire Diameter Free Length MONITOR REGULATOR
Part Number CAN BE SET
psig bar Inches mm Inches mm
3-inches w.c. / 7 mbar
3 to 12-inches w.c. 7 to 30 mbar 1B653927022 0.105 2.67 3.750 95.2
Type 161AYW with over normal
11 to 25-inches w.c. 27 to 62 mbar 1B537027052 0.114 2.90 4.312 109
1/8-inch / 3.2 mm orifice size and distribution pressure
150 psig / 10.3 bar maximum 0.9 to 2.5 0.06 to 0.17 1B537127022 0.156 3.96 4.060 103 0.5 psi / 0.03 bar
allowable inlet pressure 2.5 to 4.5 0.17 to 0.31 1B537227022 0.187 4.75 3.937 100 over normal
4.5 to 7 0.31 to 0.48 1B537327052 0.218 5.54 3.980 101 distribution pressure
3.0 psi / 0.21 bar
3/4 NPT Type 627-109 with 5 to 20 0.34 to 1.4 10B3076X012 0.170 4.32 3.190 81.0
over normal
1/8-inch / 3.2 mm orifice size 15 to 40 1.0 to 2.8 10B3077X012 0.207 5.26 3.190 81.0
distribution pressure
and 1000 psig / 69.0 bar maximum
inlet pressure / body rating 5.0 psi / 0.34 bar
35 to 80 2.1 to 5.5 10B3078X012 0.262 6.65 3.200 81.3
for ductile iron body over normal
70 to 150 4.8 to 10.3 10B3079X012 0.313 7.95 3.070 78.0
distribution pressure

Working Monitor The upstream regulator must have an O-ring seal on

the valve carrier assembly. This seals off the leak
On a working monitor installation (Figure 4), the path that otherwise would let line pressure ahead of
control line of the monitoring pilot is connected the working regulator inlet try to close the wide-open
downstream of the working regulator. During monitoring regulator.
normal operation, distribution pressure causes
the monitoring pilot to stand wide open. Full pilot
supply pressure enters the working monitor pilot and Installation
permits the working monitor regulator to control at its
intermediate pressure setting.
! Warning
Open failure of the working regulator increases
distribution pressure as the working regulator goes Personal injury, equipment damage, or
wide open. Intermediate pressure is then ignored by leakage due to escaping gas or bursting
the monitoring regulator, which controls downstream of pressure containing parts might result
pressure at its own pressure setting (slightly higher if this regulator is overpressured or is
than the normal control pressure). installed where service conditions could
exceed the limits for which the regulator
The monitoring pilot should be upstream of the working was designed, or where conditions exceed
monitor regulator. This enables a closer setpoint any ratings of the adjacent piping or
between the working regulator and the monitoring piping connections. To avoid such injury
pilot. Special Types 161AYW and 627-109 monitoring or damage, provide pressure relieving
pilots with quick-bleed operation have been designed or pressure limiting devices (as required
to give faster response to abnormal downstream by the appropriate code, regulation, or
conditions. Table 5 gives the spread between normal standard) to prevent service conditions
distribution pressure and the minimum pressure at from exceeding those limits.
which the working monitor regulator can be set to take
over if the working regulator fails open. A regulator may vent some gas to the
atmosphere in hazardous or flammable
gas service, vented gas might
Wide-Open Monitor
accumulate and cause personal injury,
The control line of the upstream regulator is death or property damage due to fire or
connected downstream of the second regulator explosion. Vent a regulator in hazardous
(Figure 5), so that during normal operation the gas service to a remote, safe location
monitoring regulator is standing wide open with the away from air intakes or any hazardous
reduction to distribution pressure being taken across location. The vent line or stack opening
the working regulator. Only in case of open failure of must be protected against condensation
the working regulator does the wide-open monitoring or clogging.
regulator take control at its slightly higher setting.

7
Type 99
Clean out all pipelines before installation and check A Type 99 regulator has two 1/2 NPT control line
to be sure the regulator has not been damaged or pressure taps on opposite sides of the lower casing
collected foreign material during shipping. (key 29, Figure 9). The regulator normally comes from
the factory with the tap closest to the regulator outlet left
Apply pipe compound to the external pipe threads unplugged for the downstream control line as shown in
only with a threaded body, or use suitable line gaskets Figure 1, and with opposite tap plugged.
and good bolting practices with a flanged body. This
regulator may be installed in any position desired as Attach the control line from the unplugged tap 2 to
long as the flow through the body is in the direction 3 feet / 0.61 to 0.91 meter downstream of the regulator
indicated by the arrow on the body. Install a three-valve in a straight run of pipe. If impossible to comply with
bypass around the regulator if continuous operation is this recommendation due to the pipe arrangement, it
necessary during maintenance or inspection. may be better to make the control line tap nearer the
regulator outlet rather than downstream of a block
Although the standard orientation of the actuator and valve. Do not install the tap near any elbow, swage, or
pilot to the main valve body is as shown in Figure 1, this nipple which might cause turbulence.
orientation may be changed as far as the inlet tubing
(key 24, Figure 9 or 17) will permit by loosening the In many instances, it will be necessary to enlarge the
union nut (key 14, Figure 9), rotating the actuator lower downstream piping to keep flow velocities within good
casing (key 29, Figure 9) as desired, and tightening engineering practices. Expand the piping as close to
the union nut. To keep the pilot spring case from being the regulator outlet as possible.
plugged or the spring case from collecting moisture,
corrosive chemicals, or other foreign material, the vent
must be pointed down, oriented to the lowest possible ! Warning
point on the spring case, or otherwise protected. Vent
orientation may be changed by rotating the spring case Adjustment of the pilot control spring to
with respect to the pilot body. produce an outlet pressure higher than
the upper limit of the outlet pressure
To remotely vent a low-pressure pilot, install the vent range for that particular spring can cause
line in place of the pressed-in vent assembly (key 60, personal injury or equipment damage
Figure 9). Install obstruction-free tubing or piping into due to bursting of pressure-containing
the 1/4-inch / 6.4 mm vent tapping. Provide protection parts. Dangerous accumulation of gases
on a remote vent by installing a screened vent cap into may also cause bursting if the maximum
the remote end of the vent pipe. actuator emergency casing pressure in
To remotely vent a high-pressure pilot, remove the the Specifications section is exceeded. If
threaded-in vent assembly (key 72, Figure 12) the desired outlet pressure is not within
from the high-pressure pilot spring case and install the range of the pilot control spring,
obstruction-free tubing or piping into the 1/4-inch / install a spring of the proper range
6.4 mm vent tapping. Provide protection on a remote according to the Maintenance section.
vent by installing a screened vent cap into the remote Each regulator is factory-set for the pressure setting
end of the vent pipe. specified on the order. If no setting was specified, outlet
An upstream pilot supply line is not required because pressure was factory-set at the midrange of the pilot
of the integral pilot supply tubing (key 24, Figure 9 control spring. In all cases, check the control spring
or 17). However, as long as the 1/4 NPT tapping setting to make sure it is correct for the application.
in the main valve body is plugged, this tubing may
be disconnected from both the main valve and
filter assembly (key 75, Figures 9 and 16) in order Overpressure Protection
to install a pilot supply line from a desired remote
The Type 99 regulator has an outlet pressure rating
location into the filter.
lower than its inlet pressure rating. Complete
If the maximum pilot inlet pressure will be exceeded downstream overpressure protection is required if
by main valve pressure, install a separate pressure the actual inlet pressure can exceed the regulator
reducing regulator (if not already provided) in the pilot outlet pressure rating or the pressure ratings of any
supply line. downstream equipment. Although the Type H110
relief valve provides sufficient relief capacity to protect

8
 Type 99
the extra high-pressure pilot of 1000 psig / 69.0 bar The only adjustment on the regulator is the reduced
maximum inlet pressure in case the Type 1301F supply pressure setting affected by the pilot control spring
regulator fails open, this protection is insufficient if the (key 43, Figure 9, 12, 14, or 18). Remove the
main valve body fails open. Regulator operation within closing cap assembly (key 46, Figure 9, 14, or 15)
ratings does not preclude the possibility of damage from and turn the adjusting screw (key 45, Figure 9, 14,
external sources or from debris in the lines. A regulator 15, or 18). Turning the adjusting screw clockwise
should be inspected for damage periodically and after into the spring case increases the controlled or
any overpressure condition. reduced pressure setting. Turning the adjusting
screw counterclockwise decreases the reduced
pressure setting. Always replace the closing cap
! Warning after making adjustments.

The 1000 psig / 69.0 bar maximum

inlet regulator must not be used on Shutdown
hazardous gas service unless the
Type H110 relief valve can be vented Installation arrangements may vary, but in any
into a safe area. If vented gas can installation, it is important to open and close valves
accumulate and become a hazard in slowly and the outlet pressure be vented before
enclosed conditions such as in a pit, venting inlet pressure to prevent damage caused by
underground, or indoors, the relief valve reverse pressurization of the regulator.
must be repiped to carry the gas to a
safe location. 1. Isolate the regulator from the system. Close the
upstream block valve to the pilot and regulator inlet.
A repiped vent line or stack must be 2. Close the downstream block valve to the pilot
located to avoid venting gas near sense connection and the regulator outlet.
buildings, air intakes, or any hazardous
location. The line or stack opening must 3. Vent the downstream pressure by slowly opening
be protected against condensation, the vent valve to vent all pressures.
freezing, and clogging. 4. Vent inlet pressure slowly through the vent valve to
release any remaining pressure in the regulator.

Startup
Key numbers are referenced in Figures 9 through 15
Maintenance
for a low or high-pressure pilot and in Figure 18 for an Regulator parts are subject to normal wear and must be
extra high-pressure pilot. inspected and replaced as necessary. The frequency
of inspection and replacement of parts depend on the
1. Very slowly open the upstream block valve.
severity of service conditions or the requirements of
2. Slowly open the hand valve (if used) in the control local, state, and federal rules and regulations.
line. The unit will control downstream pressure
at the pilot control spring setting. If changes in
the pressure setting are necessary, follow the ! Warning
procedure in the Adjustment section.
Avoid personal injury or damage to
3. Slowly open the downstream block valve.
property from sudden release of pressure
4. Slowly close the bypass valve, if any. or uncontrolled gas or other process fluid.
5. Check all connections for leaks. Before starting to disassemble, isolate
the pilot or regulator from all pressure
and cautiously release trapped pressure
Adjustment from the pilot or regulator. Use gauges to
monitor inlet, loading, and outlet pressures
With proper installation completed, perform the while releasing these pressures.
adjustment procedure while using pressure gauges to
monitor pressure.

9
Type 99
On reassembly of the regulator, it is recommended Inspect the diaphragm (key 11) and pusher post
that a pipe thread sealant be applied to pressure gasket (key 7). Either part must be replaced if it is
connections and fittings as indicated in Figures 7 damaged or no longer pliable.
and 9 and lubricant be applied to sliding and bearing   7. If the unit has a stem seal O-ring (key 64, Figure 7
surfaces as indicated in Figures 7 and 9, and that an or 17), this O-ring may be replaced by removing the
anti-seize compound be applied to adjusting screw retaining ring or cotter pin (key 28, Figure 9) and
threads and other areas indicated in Figures 9 and 11. disconnecting the lever (key 9) from the valve carrier
(key 26, Figure 9 or 17), removing the union nut
Actuator and Standard P590 Series Filter (key 14, Figure 9), disconnecting the pilot supply
This procedure is to be performed if changing the main tubing (key 24, Figure 9 or 17), and sliding the lower
spring and spring seat for those of a different range, casing (key 29) away from the valve body (key 17,
or if inspecting, cleaning, or replacing any other parts. Figure 9), with a disk or O-ring seat, the valve carrier
Unless otherwise indicated, part key numbers for a must be pulled out of the lower casing (key 29,
Type 99 regulator with low or high-pressure pilot and Figure 9 or 17) to gain access to the O-ring. Another
disk or O-ring seat are referenced in Figures 9 through O-ring, held captive by the pressed-in bushing, is
15, part key numbers unique to the 1000 psig / 69.0 bar part of the lower casing assembly on a stem seal
maximum inlet regulator are referenced in Figure 17, and unit and normally does not require replacement.
part key numbers for a Type 61HP (extra high pressure)   8. If clogging is suspected in the upstream regulator
pilot are referenced in Figure 18. passages, disconnect the pilot supply tubing
  1. A
 ccess to all internal actuator parts can be gained (key 24, Figure 9 or 17), remove the filter
without removing the main valve body from the assembly (key 75, Figure 9), and blow through it
line. Disconnect the loading tubing from the to check for filter clogging. If necessary, to clean
upper casing. or replace filter parts in a standard P590 Series
filter assembly, remove the following as shown
in Figure 16: filter body (key 1), machine screw
caution (key 4), spring washer (key 6), gasket (key 7),
washers (key 5), and filter element (key 2). Upon
If the regulator has an indicator
reassembly, one of the two washers (key 5) must
assembly, perform the following step
go between the filter element (key 2) and filter
carefully to avoid bending the travel
head (key 3) and the other must go between the
indicator stem (key 103, Figure 6).
filter element (key 2) and gasket (key 7).
Note   9. If the lower casing (key 29, Figure 9) was
The O-rings and gaskets (keys 111 and removed, install a new body gasket (key 16)
108, Figure 6) in the indicator assembly and, with a disk or O-ring seat, slide the valve
are static seals and need not be carrier (key 26) into the casing (key 29). Then
disturbed, unless they are leaking. slide the entire assembly into the valve body
(disk or O-ring seat) and secure with the union
  2. R
 emove the four cap screws (key 58, Figure 9) and nut (key 14). Secure the lever (key 9) to the
lift off the spring case (key 1). Remove the travel valve carrier (key 26) with the retaining ring or
indicator stem, if any, by unscrewing the indicator cotter pin (key 28).
stem adaptor (key 101, Figure 6).
  10. L
 oosely reassemble the diaphragm (key 11,
  3. Remove the main spring seat (key 2, Figure 9) Figure 9) and diaphragm plate (key 10) so that
and main spring (key 3). and loading connection hole in the diaphragm
  4. Remove the 12 cap screws (key 12, Figure 9) the bolt holes (key 11) can be properly aligned
and hex nuts (key 13), and lift off the upper casing. with the corresponding holes in the lower casing
(key 29) when the lever (key 9) is fitted properly
  5. R
 emove the diaphragm (key 11, Figure 9) and into the pusher post assembly (key 8). When
diaphragm plate (key 10) by tipping it so that the this orientation is made, install the collar (key 6)
lever (key 9) slips out of the pusher post (key 8). and tighten the diaphragm rod (key 4) into the
  6. S
 eparate the diaphragm (key 11, Figure 9) and pusher post (key 8).
diaphragm plate (key 10) by unscrewing the
  11. In order for the regulator to operate properly, the
diaphragm rod (key 4) from the pusher post (key 8).
assembled collar (key 6), diaphragm (key 11),

10
 Type 99
diaphragm plate (key 10), pusher post assembly   5.  Unscrew the bleed orifice (key 52, Figure 11) from
(key 8), and diaphragm rod (key 4) must be     the yoke (key 37). Also to be removed with the
mounted on the ball of the lever (key 9) bleed orifice are the relay disk assembly (key 48)
so that the pusher post (key 8) orientation is as and bleed valve (key 50). These parts can be
shown in Figure 9.     unthreaded for inspection and replacement,
  12. Install the upper casing (key 56, Figure 9) and   if necessary.
secure it to the lower casing (key 29) with the   6.  When reassembling the pilot, the relay disk holder
twelve cap screws (key 12) torque     assembly (key 48, Figure 11) and both diaphragms
580 to 920 inch-pounds / 65.5 to 104 N•m and hex     (key 30, Figure 11 and key 40, Figure 12) should
nuts (key 13). Put lower casing (key 29) back on   be tightened on the yoke (key 37) after it is placed
body and install union nut (key 14).   in the body.
Note
caution
Before putting the relay spring case over
To avoid part damage due to over the diaphragm, make certain the yoke is
compressing the main spring seat (key 2), square with respect to the prong in the
always use main spring seat 1E242724092 relay body. (The yoke can bind on the
with main spring 0W019127022. prong if it is not square.)
  7. Use care in reassembly to be sure the edges of
  13. Thread the main spring seat (key 2) to the bottom     the diaphragms (key 30, Figure 11 and key 40,
of the diaphragm rod (key 4) threads and then     Figure 12) slip properly into the recess on the lower
back out 1 revolution.     casing (key 29, Figure 9) and relay valve body
  14. Install a new spring case gasket (key 57,     (key 39). With the pilot in place, check to see if it
Figure 9), the spring case (key 1), and the four     can be rocked. If it does not rock, it is in place and
cap screws (key 58) with 340 to 420 inch-pounds     the diaphragms (key 30, Figure 11 and key 40,
/ 38.4 to 47.5 N•m of torque, making sure the   Figure 12) are free of wrinkles. With both
indicator stem, O-ring, and gaskets (keys 103,   diaphragms firmly in place, install the cap screws
111, and 108, Figure 6) are installed, if used.   (key 47, Figure 9) using torque 150 inch-pounds /
  15. Connect the loading tubing, then refer to the   16.9 N•m of torque. Tighten using a crisscross
      Startup section for putting the regulator   pattern to avoid placing a strain on the unit. Set
      into operation.   the pilot control spring (key 43) according to the
  adjustment information in the Startup section.
Type 61L, 61LD, 61LE (Low), or 61H   8. Reinstall the closing cap (key 46, if used). If you
(High Pressure) Pilot     have a plastic closing cap, be sure that you have
    a vent (key 60) in place of the pipe plug installed
This procedure is to be performed if changing the control in the low-pressure pilot spring case (key 44).
spring for one of a different range, or if inspecting,
cleaning or replacing any other pilot parts. Key numbers
are referenced in Figure 9 through 15. Type 61HP (Extra High Pressure) Pilot
  1.  Remove the closing cap (key 46), if used, and This procedure is to be performed if changing the
    unscrew the adjusting screw (key 45) to relieve control spring for one of a different range, or if
    control spring compression. inspecting, cleaning, or replacing any other pilot parts.
  2.  Disconnect the loading tubing (key 53) and pilot Key numbers are referenced in Figure 18 unless
    supply tubing (key 24). otherwise specified.

  3.  Unscrew the eight cap screws (key 47) and remove   1. Unscrew the adjusting screw (key 45) to relieve   
the pilot assembly from the lower casing (key 29). control spring compression.

  4.  Use the projecting prong in the relay valve body   2. Disconnect the loading tubing (key 53, Figures 9 and
    (key 39) as the restraining member and remove 18) and pilot supply tubing (key 24, Figure 9).
    the diaphragm nuts (key 13, Figure 9 and key 51,   3.  Remove the six cap screws (key 123) which fasten
    Figure 11). Separate the parts and inspect the the spring case (key 44), spring seat (key 68), and
    diaphragms (keys 30 and 40) and O-ring seal      control spring (key 43) to the pilot body (key 39).
    (key 33). Replace if worn or damaged.

11
Type 99
  4. Unscrew the diaphragm nut (key 128) and remove Converting the Pilot
a diaphragm plate (key 41A), diaphragm (key 40),
and another diaphragm plate (key 41B). Note
  5. Unscrew the eight cap screws (key 47) and A complete pilot assembly rather than
remove the pilot body (key 39) and gasket individual parts may be ordered for
(key 126). Remove six cap screws (key 35), seal the following conversion procedure.
washers and the flange adaptor (key 125). When a low-pressure pilot is ordered
for field conversion of a high-pressure
  6. Unscrew the relief valve body (key 119) and remove
pilot or vice versa, the replacement pilot
a diaphragm plate (key 41C), diaphragm (key 30),
assembly comes complete with a pilot
and another diaphragm plate (key 41D). Inspect
cover (key 132, Figure 9). Remove this
the diaphragm inserts (key 150) and both
cover before installing the replacement
diaphragms (keys 30 and 40). Replace if worn
pilot on the existing regulator. The cover
  or damaged.
can then be installed on the removed
  7. The relief valve assembly can be further pilot to form a complete Type 61 (low or
disassembled for inspection by unscrewing the high pressure) pilot for use elsewhere.
relief valve cap (key 118).
When changing one pilot construction (low pressure, high
  8. Four machine screws (key 130) hold both yoke pressure, or extra high pressure) for another, all parts
caps (keys 37 and 116) to the yoke legs (key 31). attached to the lower casing (key 29, Figure 9) may need
  Separate these parts to expose the pilot valve. to be replaced with those appropriate for the desired
construction. At the very least, when changing from a
  9. Unscrew the inlet orifice (key 38) to inspect its low to high-pressure pilot or vice versa, everything below
seat, the inlet valve plug (key 117), and valve the lower pilot diaphragm (key 40, Figure 9) except the
spring (key 124). cap screws and the hex nut (keys 47 and 13, Figure 9)
will need to be replaced. Actuator and main valve parts
Note
may remain unchanged unless a change in service
Make certain that the yoke assembly is conditions requires a change in seat construction, main
square with respect to the cross member spring, or main spring seat. See the Parts List sections
of the body casting so that it will not for obtaining the appropriate conversion parts.
bind on the body.

  10. When reassembling, screw in the inlet orifice Main Valve Trim with Disk or O-ring Seat
(key 38) all the way and secure the yoke caps This procedure is to be performed if inspecting,
(keys 37 and 116) to the yoke legs (key 31). cleaning, or replacing trim parts. Part key numbers
  Replace two diaphragm plates (keys 41B and for a Type 99 regulator with disk or O-ring seat are
41D), the diaphragms (keys 30 and 40), and referenced in Figures 9 and 10, and part key numbers
   inserts, two more diaphragm plates (keys 41A and for the disk seat unique to the 1000 psig / 69.0 bar
41C), the diaphragm nut (key 128), and the relief maximum inlet regulator are referenced in Figure 17.
valve assembly.
Note
  11.  Assemble the control spring (key 43) and spring
    seat (key 68) into the body and spring case All trim maintenance may be performed
    (key 44), being careful that the diaphragms with the valve body (key 17, Figure 9
    (keys 30 and 40) are free of wrinkles and properly or 17) in the line and with the elbow
    in place, and evenly installing the cap screws (key 23), pilot supply tubing (key 24),
  (key 123) in a crisscross pattern to avoid placing a and pilot supply regulator (if used)
   strain on the unit. Install the body flange adaptor attached to the valve body unless the
    (key 125) with seal washers (key 126) and cap valve body itself will be replaced.
     screws (key 47). Install a new gasket and secure
  the pilot to the lower casing (key 29) with eight cap   1. Disconnect the pilot supply tubing (key 24) and
    screws (key 47). Set the control spring (key 43)   downstream control line.
    according to the adjustment information in the
  2. Loosen the union nut (key 14, Figure 9) and
    Startup section.
  remove the lower casing (key 29) with

12
 Type 99

102 108

105 109

OPEN
107 112

104 110

106 111

105 103

101 1

20A7146-B

Figure 6. Travel Indicator Assembly

the cap screw (key 22) or disk and Parts Ordering

holder assembly (key 18, Figure 17) on
disassembly or reassembly. A thin-walled socket A serial number is assigned to each regulator, and it
may be used to remove the orifice. is stamped on both the actuator and pilot nameplates.
If the pilot is replaced, the new pilot will have its own
3. Access to the disk or O-ring (key 19, Figure 9) can serial number different from the main valve serial
be gained by removing the cap screw (key 22) and number. Always indicate one or both serial numbers
retainer (key 21), while on the 1000 psig / 69.0 bar when communicating with your local Sales Office.
maximum inlet regulator the entire disk and holder When ordering a replacement part, be sure to include
assembly (key 18, Figure 17) is removed as a unit. the complete eleven-character part number.
If necessary, the holder (key 18, Figure 9 or 17) or
adaptor (key 157, Figure 17) can be removed by
taking out the cotter pin (key 25, Figure 9 or 17). Parts List
4. Install a new body gasket (key 16, Figure 9) and a Key Description Part number
new disk, O-ring, or disk and holder assembly as Repair kits include parts for regulator with composition
necessary. Then slide the entire assembly into trim only, keys 7, 11, 16, 19, 20, and 57.
the valve body (key 17) and secure with the union Also included are parts for pilot, keys 30, 33,
38, 40, 48, 49, 50, 52, 71, 117, 126, 129, 150,
nut (key 14). 153, and P590 Series filter, keys 2 and 7.
With low-pressure pilot
5. Connect the pilot supply tubing (key 24) and 7/8-inch / 22 mm orifice R99LX000012
downstream control line, then refer to the Startup 1-1/8-inch / 29 mm orifice R99LX000022
With high-pressure pilot
section for putting the regulator into operation. 7/8-inch / 22 mm orifice R99HX000012
1-1/8-inch / 29 mm orifice R99HX000022
With extra high-pressure pilot
7/8-inch / 22 mm orifice R99HPX00012
1-1/8-inch / 29 mm orifice R99HPX00022

13
Type 99

26 S L 64 68 81

S L 46
82

79 45

20A7148-B 10A7145
78 80
apply sealant (S) / Lubricant (L)

Figure 7. O-ring Stem Seal Figure 8. O-ring Sealed Handwheel

Travel Indicator Assembly (Figure 6)

Key Description Part Number Key Description Part Number

Complete Assembly (includes individual parts   3 Main Spring (continued)

listed below) 20A7146X0C2   50 psid / 3.4 bar d maximum allowable
  1 Spring Case, Cast iron 2L296219012    pressure drop 1N801927022
  101 Indicator Stem Adaptor, Aluminum 1R395909012   250 psid / 17.2 bar d maximum
  102 Indicator Cap, Aluminum 1L290809012    allowable pressure drop 1B883327022
  103 Indicator Stem, Aluminum 1L296509022   1000 psid / 69.0 bar d maximum allowable
  104 Disk Nut, Plastic 1F730506992    pressure drop–requires main spring
  105 Machine Screw Nut, Plated steel (2 required) 1A342024152    seat 1E242724092 0W019127022
  106 Retainer, Aluminum 1L291009012   4 Diaphragm Rod, 416 Stainless steel 1B883435232
  107* Indicator Window, Glass 1L296706992   5 Diaphragm Rod Guide Assembly
  108* Gasket   Brass with Bronze insert 1D9712000A2
  Neoprene (CR) (2 required) 1L291103012   316 Stainless steel 1B883535072
  Fluorocarbon (FKM) (2 required) 1L2911X0012   6 Collar
  109 Indicator Cover, Plastic (2 required) 1L296405032   Brass 1B883614012
  110 Machine Screw, Plated steel (8 required) 1A899028982   316 Stainless steel 1B883635072
  111* O-ring   7* Pusher Post Gasket
  Nitrile (NBR) (2 required) 1E591406992   Composition - for standard construction 1B883704022
  Fluorocarbon (FKM) (2 required) 1E5914X0062   8 Pusher Post Assembly
  112 Indicator Scale, Stainless steel 1J511638982   Brass with Bronze insert 1D9714000A2
  316 Stainless steel 1B883835072
  9 Lever, Plated Steel 2F823423072
  10 Diaphragm Plate, Plated steel 1B989225072
Actuator and Main Body Assembly   11* Diaphragm
(Figures 7, 9, and 17)   Nitrile (NBR)
  Fluorocarbon (FKM)
1B884102052
1N378902312
  12 Cap Screw, Plated steel (12 required) 1B884224052
Key Description Part Number   13 Hex Nut, Plated steel (13 required)(1) 1A340324122
  14 Union Nut, Ductile Iron 0Z0176X0032
  1 Standard Spring Case without travel
  15 Body Snap Ring, Plated steel 0Y095828982
  indicator, Cast iron 1B883119012
  16* Body Gasket
  2 Main Spring Seat
  Composition 1A348004032
  250 psid / 17.2 bar d maximum
  17 Valve Body
   allowable pressure drop, Cast iron 1B883219042
  2 NPT
  1000 psid / 69.0 bar d maximum allowable
   Cast iron 1C254619012
   pressure drop, Plated steel 1E242724092
  Steel 2N153522012
  3 Main Spring
  Brass 1C254612012
  25 psid / 1.7 bar d maximum allowable
  NPS 2 / DN 50 CL125 FF flanged, Cast iron 2D986519012
   pressure drop 1C277127022
  NPS 2 / DN 50 CL250 RF flanged, Cast iron 2D986619012
  NPS 2 / DN 50 CL150 RF flanged, Steel 2E275622012
  NPS 2 / DN 50 CL300 RF flanged, Steel 2E275722012

*Recommended Spare Part

  1. 12 required for Type 99HP.

14
 Type 99

1 2 4 3
152 5
AS

32 7

58 9

57 11
AS
6 12 28 15 17 18 20

10

56 AS

54 pts 22
pts
8 23

13 21
AS

L
24
control pts
line tap
(other tap 19
180° opposite) pts

pts 55 pts

34
53 23 39 47 42 43 45 44 60 41 40 75 29 27 26 14 16 25
1/4-inch / 6.4 mm vent shown 90°
154 69 46 counterclockwise from normal

71

DJ6642

Complete Regulator showing Type 61L pilot and disk seat

AS – Apply ANti-seize compound

pts – Apply pipe thread sealant
apply Lubricant (L)

Figure 9. Type 99 Regulator with Type 61L (Low) or 61H (High Pressure) Pilot

15
Type 99

A.S.

A.S.
17
20
19
22
21

18

a.S. - aPPLy anTi-SEiZE COMPOunD

Figure 10. O-Ring Seat Detail for Type 99 Regulator with Type 61L (Low Pressure) or 61H (High Pressure)

A.S.

49 52

33 50

31 51

37 30

38 48
PTS

DJ6642_B

a.S. - aPPLy anTi-SEiZE COMPOunD

PTS - aPPLy PiPE THrEaD SEaLanT

Figure 11. Pilot Relay Assembly for Type 99 Regulator with Type 61L (Low Pressure) or 61H (High Pressure) Pilot

16
 Type 99

PTS
33
51
A.S.
54 13
PTS

53 23 39 47 40 41 68 43 42 29
82 44

72

45

30A6800

A.S. - Apply Anti-seize compound

PTS - Apply pipe thread sealant

Figure 12. Pilot Relay Assembly for Type 99 Regulator with Type 61H (High Pressure) Pilot Parts

52 31
50 38
49 A.S.

51

29
30
48
13
C0289-1C

33 37 PTS

Pilot Relay and cover Assembly

A.S. - Apply Anti-seize compound
PTS - Apply pipe thread sealant

Figure 13. Pilot Relay and Cover Assembly for Type 99 Regulator with Type 61L (Low Pressure) or 61H (High Pressure) Pilot

17
Type 99
54
L. S.

13 33

a. S.
51

L. S.

L. S.

29
30

53 23 39 43 40
47 42 45 44 60 41

154 69
46
30A6923_D

71

a.S. – aPPLy anTi-SEiZE COMPOunD

L.S. – aPPLy LEaD SEaL COMPOunD

Figure 14. Pilot Relay Assembly for Type 99 Regulator with Type 61L (Low Pressure) Pilot Parts

46

45

114

LOCTiTE 115
graDE “a”

10A7151_A
44

Figure 15. Sealed Adjusting Screw Assembly for Type 99 Regulator with Type 61H (High Pressure) Pilot Parts

18
 Type 99
actuator and Main Body assembly 6 5 2 5
(Figures 7, 9, and 17) (continued) PTS

Key Description Part number

18 Disk Holder
Disk seat
Brass 1B884314012
316 Stainless steel 1B884335072
O-ring Seat
7/8-inch / 22 mm orifice
Brass 1E603214012
316 Stainless steel 1E603235072
1-1/8-inch / 29 mm orifice
Brass 1E342414012
AJ5004-A
316 Stainless steel 1E342435072 A2135/IL
18* Disk Holder Assembly for 1000 psig / 69.0 bar
maximum inlet regulator, Nylon (PA)/ 7 1 4 3
316 Stainless steel 1C1860000B2
19* Disk PTS – aPPLy PiPE THrEaD SEaLanT
25 psid / 1.7 bar d maximum
allowable pressure drop Figure 16. Standard P590 Series Filter Assembly
Nitrile (NBR) 1C158703332
250 psid / 17.2 bar d maximum
allowable pressure drop Key Description Part number
Neoprene (CR) 1C997403032
21* Retainer
Fluorocarbon (FKM) 1C9974X0012
Disk seat
400 psid / 27.6 bar d maximum All except 3/4-inch / 19 mm or
allowable pressure drop 1-1/8-inch / 29 mm orifice or
Nylon (PA) 1E480603152 1000 psig / 69.0 bar maximum inlet regulator
Polytetrafluoroethylene (PTFE) 1C997406242 Brass 1C394814012
1000 psig / 69.0 bar maximum inlet regulator, 303 Stainless steel 1C394835032
Nylon (PA) 1C185903152 3/4-inch / 19 mm orifice
19* O-ring Brass 1C780314012
7/8-inch / 22 mm orifice 316 Stainless steel 1C7803X0012
Nitrile (NBR) 1D237506992 1-1/8-inch / 29 mm orifice
Fluorocarbon (FKM) 1D237506382 Brass 1B884514012
1-1/8-inch / 29 mm orifice 316 Stainless steel 1B884535072
Nitrile (NBR) 1H8498X0012 O-ring seat for all regulators
Fluorocarbon (FKM) 1H8498X0032 7/8-inch / 22 mm orifice
20* Orifice Brass 1E603114012
Disk seat for all regulators 316 Stainless steel 1E603135072
7/8-inch x 3/8-inch / 22 x 9.5 mm orifice 1-1/8-inch / 29 mm orifice
Brass 1N878114012 Brass 1E342614012
316 Stainless steel 1N8781X0012 316 Stainless steel 1E342635072
7/8-inch x 1/2-inch / 22 x 13 mm orifice 22 Cap Screw, Plated steel 1A391724052
Brass 1C942314012 25 Cotter Pin, 316 Stainless steel 1B108438992
316 Stainless steel 1C942335072 26 Valve Carrier
7/8-inch x 5/8-inch / 22 x 16 mm orifice Brass 1E597114072
Brass 1C942414012 416 Stainless steel 1E597135132
316 Stainless steel 1C9424X0012 27 Lever Pin
3/4-inch / 19 mm orifice 316 Stainless steel 1B884935162
Brass 1C780414012 303 Stainless steel 1C911635032
316 Stainless steel 1C780435072 28 Retaining Ring for brass trim,
7/8-inch / 22 mm orifice Stainless steel (2 required) 1B8850X0012
Brass 1C394714012 Cotter Pin for Stainless steel trim,
316 Stainless steel 1C394735072 316 Stainless steel (2 required) 1A866537022
1-1/8-inch / 29 mm orifice
29 Lower Casing, Cast iron
Brass 1B884414012
Standard 4B983719012
316 Stainless steel 1B884435072
1/2-inch / 13 mm disk seat for Lower Casing Assembly for use with O-ring stem
1000 psig / 69.0 bar maximum inlet regulator, seal, Cast iron with Stainless steel guide bushing
416 Stainless steel 14A8410X012 Complete with Nitrile (NBR) O-ring 2R7230000A2
O-ring seat for all regulators Complete with Fluorocarbon (FKM) O-ring 2R7230X0022
7/8-inch / 22 mm orifice 32 Regulator Nameplate, Aluminum -----------
Brass 1E603014012 56 Upper Casing, Cast iron 3B887619012
316 Stainless steel 1E603035072 57* Spring Case Gasket
1-1/8-inch / 29 mm orifice Composition 1B8877X0012
Brass 1E342514012
316 Stainless steel 1E342535072

*Recommended Spare Part

19
Type 99

29 64 25 157 20 23

TyPE 1301F
PiLOT SuPPLy
rEguLaTOr

TyPE H110
POP rELiEF
vaLvE

34 26 18 55 24
A6803

Figure 17. 1000 psig / 69.0 bar Maximum Inlet Regulator Partial Detail

actuator and Main Body assembly Standard P590 Series Filter assembly
(Figures 7, 9, and 17) (continued) (Figure 16)
Key Description Part number Key Description Part number

58 Cap Screw, Plated steel (4 required) 1A675124052 1 Filter Body

64* O-ring (for use only with O-ring stem seal) Type P594-1, Brass 1E312414012
Nitrile (NBR) 1E220206992 Type P593-1, Aluminum 1E3124X0022
Fluorocarbon (FKM) 1R620106382 2* Filter Element, Cellulose 1E312606992
73 Pipe plug, Plated steel (not shown) 1A767524662 3 Filter Head
75 Standard P590 Series Filter Assembly Type P594-1, Brass 1E312514012
(parts listed under separate heading) Type P593-1, Aluminum 1E3125X0022
Type P594-1, Brass FSP594-1 4 Machine Screw
Type P593-1, Aluminum FSP593-1 Type P594-1, Brass 1J500218992
152 Drive Screw, 18-8 Stainless steel Type P593-1, Aluminum 1J500209012
(4 required for low-pressure pilot and 5 Washer (2 required)
6 required for high-pressure pilot) 1A368228982 Type P594-1, Brass 1J500018992
159 Nameplate (for use only with O-ring stem seal Type P593-1, Aluminum 1J500010062
and extra high-pressure pilot) 6* Spring Washer, Plated carbon steel 1H885128982
Alloy 1100 (not shown) ----------- 7* Gasket, Composition 1F826804022

*Recommended Spare Part

20
 Type 99
Pilot and Tubing Parts(2) Low or High- Key Description              Part Number

Pressure Pilot (Figures 8, 10, 11, 12, 13,   46 Closing Cap

Low-pressure pilot
14, and 15)   For use with standard low-pressure pilot, Plastic T11069X0012
  For use with standard low-pressure pilot, Steel 1E422724092
Key Description    Part Number   For use with handwheel-style
   low-pressure pilot, Brass (not shown) 1A926114012
  23 Elbow (2 required) -----------
  For use with O-ring sealed handwheel, Brass 1R759314012
  24 Pilot Supply Tubing, disk or O-ring main valve seat - - - - - - - - - - -
High-pressure pilot
  30* Upper Relay Diaphragm
  For use with high-pressure pilot with spring
  Nitrile (NBR)   1B885202052
   case 1H232619012, Brass (not shown) 1H236514012
  Fluorocarbon (FKM) 1N162802332
  31 Upper Relay Diaphragm Plate, Plated steel   47 Cap Screw, Plated steel (8 required) 1B989624052
  For use with all low-pressure pilots   48* Relay Disk Assembly
   except Type 61LE   1B989325072   Brass/Nitrile (NBR) 1B8868000A2
  For use with all high-pressure pilots and   303 Stainless steel/Nitrile (NBR) 1B8868000B2
   Type 61LE low-pressure pilot 1D558425072   Brass/Fluorocarbon (FKM) 1B8868X0012
  33* O-ring Seal   303 Stainless steel/Fluorocarbon (FKM) 1B8868X0022
  Nitrile (NBR)   1B885506992   49 Bleed Valve Spring, Stainless steel
  Fluorocarbon (FKM)   1B8855X0012   For use with low-pressure pilot with relay orifice
  34 Connector -----------   1D373735032 or bleed valve 1H951635132 1E643637022
  37 Yoke   For use with all low and high-pressure pilots
 Zinc 1D662544012    Inlet pressure up to 250 psig / 17.2 bar 1C911537022
  38 Relay Orifice, Stainless steel    Inlet pressure over 250 psig / 17.2 bar 1N859137022
  For use with 25 psi / 1.7 bar maximum allowable   50 Bleed Valve, Stainless steel
   pressure drop actuator main spring   1D373735032   For use with Type 61LD low-pressure pilot
  For use with all other main springs   1C520135032    with bleed valve spring 1E643637022 1H951635132
  39 Relay Valve Body, Cast iron 2J581919012   For use with all low and high-pressure pilots 1D986735132
  40* Lower Relay Diaphragm   51 Diaphragm Nut
  Low-pressure pilot   Brass 1B989514012
   Nitrile (NBR)   1B886002052   316 Stainless steel 1B989535072
   Fluorocarbon (FKM)   1N536102332   52* Bleed Orifice, 316 Stainless steel 1B887335032
  High-pressure pilot   53 Loading Tubing -----------
   Nitrile (NBR)   1B894202192   54 Connector -----------
   Fluorocarbon (FKM) (2 required)   1N162702302   55 Pipe Nipple (1 required for 90º orientation
  41 Lower Relay Diaphragm Plate, Plated steel and 2 required with SST tubing) -----------
  Low-pressure pilot 1B989425072   59 Pipe plug, Steel (not shown) -----------
  High-pressure pilot 1D558325072   60 Type Y602-12 Vent Assembly
  42 Spring Seat, Plated steel (low-pressure pilot only) 27A5516X012
  Low-pressure pilot 1B886225072   68 Spring Seat
  High-pressure pilot 1D558525072   Handwheel-style low-pressure pilot,
  43 Control Spring, Plated steel    Zinc-plated steel, (not shown) 1J618124092
  For use only with Type 61LD low-pressure pilot   High-pressure pilot, Zinc-plated steel 16A9812X012
   2 to 4-inches w.c. / 5 to 10 mbar, Orange 1B558527052   69 Pilot Nameplate - - - - - - - - - - -
   3 to 12-inches w.c. / 7 to 30 mbar, Unpainted  1C680627222   71* Closing Cap Gasket
  For use with all low-pressure pilots   (for use only with low-pressure pilot),
   0.25 to 2 psig / 0.02 to 0.14 bar, Red 1B886327022   Neoprene (CR) 1P753306992
   1 to 5 psig / 0.07 to 0.35 bar, Yellow 1J857827022   72 Type Y602-1 Vent Assembly (for use only with
   2 to 10 psig / 0.14 to 0.69 bar, Blue   1B886427022   standard high-pressure pilot spring case) 17A6570X012
   5 to 15 psig / 0.35 to 1.0 bar, Brown 1J857927142   78 Handwheel
   10 to 20 psig / 0.69 to 1.4 bar, Green 1B886527022   (for use only with handwheel-style
  For use with high-pressure pilot   low-pressure pilot), Zinc 1J496144012
   10 to 65 psig / 0.69 to 4.5 bar, Green stripe 0Y066427022   79 Machine Screw (for use only with handwheel-style
  44 Spring Case, Cast iron   low-pressure pilot), Plated steel 16A5763X012
  Low-pressure pilot 1B983919012   80 Lockwasher
  High-pressure pilot   For use only with handwheel-style
  Standard 1B984119012    low-pressure pilot, Steel 1A352332992
  For use with closing cap (not shown) 1H232619012   For use with Brass cap with external
  45 Adjusting Screw    sealed adjusting screw 1V205699012
  Low-pressure pilot   81* O-ring (for use only with O-ring sealed
   Standard, Zinc 1B537944012   handwheel assembly) low-pressure pilot,
   Handwheel-style, Plated steel 1J496428982   Nitrile (NBR) 1D541506992
   O-ring sealed handwheel assembly, Brass 1R759414012   82 Hex nut
  Brass Cap with external sealed adjusting screw,   For use only with O-ring sealed
  Plated steel 1D995448702    handwheel assembly low-pressure pilot 1A351124122
  High-pressure pilot   For use with Brass cap with external sealed
   Standard, Plated steel 1A279128982    adjusting screw, Zinc 1A353724122
  For use with high-pressure pilot, Plated steel 1A352424122
   For use with closing cap, 1H236514012
   Plated steel 1J881524102
   Type 662 18B3500X022

*Recommended Spare Part

  2. An entire pilot assembly may be ordered from your local Sales Office by specifying a Type 61L, 61H, or 61HP pilot for field conversion.

21
Type 99

126 35 41D 41C 52 49 121 50 118 120 119 A.S.

A.S.

150

53 37

125 30

55
47

130

31

39 124

40 129
38
41B
117
41A
123

116 152 151 82 45 44 68 43 128

54A1905

A.S. – Apply ANti-seize compound

Figure 18. Type 61HP (Extra High Pressure) Pilot

22
 Type 99
Pilot and Tubing Parts(2) Low or High- Key Description Part Number

Pressure Pilot (Figures 8, 10, 11, 12, 13,   44 Spring Case, Cast iron
  Standard 2P969419012
14, and 15) (continued)   45 Adjusting Screw, Plated steel
  Standard 1C216032992
Key Description Part Number   47 Cap Screw, Plated steel (8 required) 1B787724052
  49 Relief Valve Spring, Stainless steel 1C374037022
  114* Gasket (for use only with high-pressure pilot   50* Relief Valve Plug, 316 Stainless steel 1K377535162
  with spring case 1H232619012), Steel/   52* Bleed Orifice
  Composition 1B487099202   Brass 1B329014012
  115 Adaptor (for use only with high-pressure pilot with   Stainless steel 1K377635162
  spring case 1H232619012), Steel 1J881624092   53 Loading Tubing -----------
  132 Pilot Cover (used only with complete replacement   55 Pipe Nipple (2 required)
  pilot assembly for field conversion) Plated steel 1C488226232
  Cast iron 2C518619012 Stainless steel 1C488238982
   Stainless steel (For high-pressure pilot only) 2V518619012  57 Adaptor 14A8411X012
  154 Drive Screw   60 Pipe plug, Steel (not shown) 1A649528982
  (for use only with low-pressure pilot),   68 Spring Seat, Plated steel 10A3963X012
   18-8 Stainless steel (2 required) 1A368228982   82 Hex Nut, Plated steel 1A352224122
  92 Pipe Tee (For gauge tap only) -----------
  113 Pipe Nipple (For gauge tap only) -----------
  116 Yoke Cap, 416 Stainless steel 13A9836X012
Type 61HP (Extra High Pressure) Pilot   117* Inlet Valve Plug
  316 Stainless steel/Nitrile (NBR) 1D5604000B2
(Figure 18)   304 Stainless steel/Fluorocarbon (FKM) 1N3798000C2
  118 Relief Valve Cap
Key Description Part Number   Brass 1D904914012
  303 Stainless steel 1D904935072
  23 Elbow 15A6002X292   119 Relief Valve Body
  24 Pilot Supply Tubing -----------   Brass 1D904814012
  30* Diaphragm   316 Stainless steel 1D904835072
  Neoprene (CR) /Nylon (PA) 13A9840X012   120 Spring Seat
  Fluorocarbon (FKM)/Nomex® 13A9840X022   Brass 1K377718992
  31 Yoke Leg, 416 Stainless steel (2 required) 13A9838X012   302 Stainless steel 1K377735072
  34 Connector (3 required)   121 Spring Seat Washer
  For use with all standard regulators   Brass 1B495118992
  Brass 1D692214012   316 Stainless steel 1K377835072
   316 Stainless steel 15A6002X602   122 Pipe Bushing, Plated steel (not shown) 1C379026232
  For use with 1000 psig / 69.0 bar maximum   123 Cap Screw, Plated steel (6 required) 1P327028982
   inlet regulator, Steel 15A6002XW22   124 Valve Spring, 316 Stainless steel 1B797937022
  35 Cap Screw, Plated steel (6 required) 1A930424052   125 Flange Adaptor, Cast Iron 23A9846X012
  36 Elbow, Plated steel 1B860828992   126* Gasket, Composition 0U0365X0022
  37 Lower Yoke Cap, 416 Stainless steel 13A9837X012   128 Diaphragm Nut, Plated steel 1A346524122
  38 Inlet Orifice, 303 Stainless steel 1D318135032   129 Valve Spring Seat, 316 Stainless steel 1L251135072
  39 Pilot Body, Cast iron 33A9845X012   130 Machine Screw, 303 Stainless
  40* Diaphragm   steel (4 required) 1A866935032
  Neoprene (CR) 13A9841X022   131 Pipe plug, Steel (not shown) 1A369224492
  Fluorocarbon (FKM)/Nomex(3) 13A9841X012   150* Diaphragm Insert (2 required)
  41 Diaphragm Plate, Nitrile (NBR) 13A9842X012
  416 Stainless steel (4 required) 13A9839X012 Fluorocarbon (FKM) 13A9842X022
  43 Control Spring, Plated steel   151 Pilot Nameplate -----------
  35 to 100 psig / 2.4 to 6.9 bar, Blue 1D387227022   152 Drive Screw, 18-8 Stainless
  steel (2 required) 1A368228982
  153* Seal Washer, Nitrile (NBR)/Plated
  steel (6 required) 13A9849X012

*Recommended Spare Part

Nomex® is a mark owned by E.I. du Pont de Nemours and Co.
  2. An entire pilot assembly may be ordered from your local Sales Office by specifying a Type 61L, 61H, or 61HP pilot for field conversion.
  3. 3 required for 90º orientation.

23
Type 99

Industrial Regulators Natural Gas Technologies TESCOM

Emerson Process Management Emerson Process Management Emerson Process Management

Regulator Technologies, Inc. Regulator Technologies, Inc. Tescom Corporation
USA - Headquarters USA - Headquarters USA - Headquarters
McKinney, Texas 75069-1872, USA McKinney, Texas 75069-1872, USA Elk River, Minnesota 55330-2445, USA
Tel: +1 800 558 5853 Tel: +1 800 558 5853 Tels: +1 763 241 3238
Outside U.S. +1 972 548 3574 Outside U.S. +1 972 548 3574     +1 800 447 1250
Asia-Pacific Asia-Pacific Europe
Shanghai 201206, China Singapore 128461, Singapore Selmsdorf 23923, Germany
Tel: +86 21 2892 9000 Tel: +65 6770 8337 Tel: +49 38823 31 287
Europe Europe Asia-Pacific
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Tel: +39 051 419 0611 Tel: +39 051 419 0611 Tel: +86 21 2892 9499
Gallardon 28320, France
Middle East and Africa Tel: +33 2 37 33 47 00
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Tel: +971 4811 8100
For further information visit www.fisherregulators.com

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC,
a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or
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