2008

Edition

6 0 0
N
I
T
E
®

L
L
#55

U
B
Manufactured to
AWWA C-512 standards
ISO connections available

#50

AIR RELEASE VALVES

#200A
Concave Float
Patented

AIR VALVES

#200 #400
Concave Float
Patented

VALVE & PRIMER CORPORATION

1420 WRIGHT BLVD. • SCHAUMBURG, IL 60193-4599
847.524.9000 • FAX:847.524.9007 • 800.323.6969 115
1
website: www.apcovalves.com • e-mail: factory@apcovalves.com
 AIR RELEASE VALVES

WHY and WHERE to use An Air Release Valve has a small venting orifice and is used wherever
air is entrained in water under pressure. These pockets of air increase the resistance to the flow of water. In critical
installations, air can reduce the capacity of a line down to zero. More common is an increased resistance of 10 to 15%.
The increased resistance must be overcome by the pump using more power than necessary to move the required
amount of water. Such a loss can continue unnoticed for years creating excessive power consumption costs. This is a
major reason why all points where air can collect should be equipped with an APCO Air Release Valve.

HOW TO OPERATE These valves have much smaller orifices than the Air/Vacuum Valves. Their func-
tion is to release small pockets of air which gather at the high points of a system after it is filled and under pressure.
The Air Release Valve has the ability to open against internal pressure because it has a small orifice and a leverage
mechanism which multiplies the force of the float. This force must be greater than the internal pressure across the
orifice in order to open the orifice when a pocket of air needs to be vented. This explains why, as the internal pressure
increases, the orifice decreases in size to facilitate the valve opening.

S I M P L E L E V E R

All APCO Air Release Valves

are 100% Hydrostatically factory
tested for ANSI/AWWA
C512 standards.

#5 0 #55 #65 MATERIALS OF

CONSTRUCTION
1/2, 3/4, 1” Inlet 1/2” Inlet 3/4” Inlet
PHYSICAL DIMENSIONS PHYSICAL DIMENSIONS PHYSICAL DIMENSIONS Body and Cover
Height . . . . . . . . 5 7⁄8” Height . . . . . . . . 5” Height . . . . . . . . 7” Cast Iron

Width . . . . . . . . . 3 3⁄4” Length . . . . . . . . 6 3⁄8” Length . . . . . . . . 8 1⁄2” Float

Weight . . . . . . . . 6 lbs. Width . . . . . . . . . 3 5⁄16” Width . . . . . . . . . 4 1⁄2” Stainless Steel
Weight . . . . . . . . 5 1⁄2 lbs. Weight . . . . . . . . 9 lbs. Seat
Brass-Stainless or Buna-N

Standard pressures up to 150 psi Needle

Brass or Stainless Steel
Standard pressures up to 175 psi
and up to 300 psi with special Standard pressures up to 175 psi. Linkage
orifice. Delrin, Bronze or
Specify if operating pressure is Stainless Steel
below 20 psi.
Other internal parts —
Lever Pins, Retaining Rings,
Screws are Stainless Steel,
APCO Uses Stainless Steel Floats Exclusively! Bronze or Brass.
Examine these QUALITY features provided at no extra cost!
1. ASTM QUALITY materials guaranteed throughout
2. Stainless Steel Floats
3. Conserve pumping power — eliminate restricted high points NOTE:
Great care is taken in
4. Create maximum pipeline efficiency the choice of materials to
Use APCO Air Release Valves. avoid galvanic action!

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 6 0 0
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WHERE TO INSTALL...

T
TYPICAL PIPELINE AND POSITION OF NECESSARY AIR VALVES.

E
Also install on:

L
1. Centrifugal pumps
2. Hydropneumatic Tanks

L
3. Enclosed Systems

U
4. Sewage Lines

B
AIR/VACUUM VALVE on pump discharge before check valve (not necessary for pumps with positive suction head) or HYDRAULICALLY
CONTROLLED AIR/VACUUM VALVE where a discharge central valve is normally closed during pump start-up to develop head.
NOTE: INSTALLING MANWAYS AT INTERVALS IN LARGER SIZE PIPELINES PROVIDES AN EXCELLENT POINT TO INSTALL AIR VALVES.

C O M P O U N D L E V E R

AIR RELEASE VALVES

#200A #200 #205 #207

1”, 2” Inlet 2” Inlet 2” Inlet 6” Inlet

PHYSICAL DIMENSIONS PHYSICAL DIMENSIONS PHYSICAL DIMENSIONS PHYSICAL DIMENSIONS
Height . . . . . . . . 10” Height . . . . . . . . 12 1⁄2” Height . . . . . . . . 13” Height . . . . . . . . 28”
Width . . . . . . . . . 7” Width . . . . . . . . . 9 1⁄2” Width . . . . . . . . . 12” Width . . . . . . . . . 13 1⁄2”
Weight . . . . . . . . 20 lbs. Weight . . . . . . . . 45 lbs. Weight . . . . . . . . 75 lbs. Weight . . . . . . . .200 lbs.
Inlet— 1” or 2” pipe thread Inlet— 2” pipe thread Inlet— 2” pipe thread Inlet— 6” 125# flange
Flanged inlet available Discharge orifice . . 1” dia.
Standard pressures up to 150 psi Standard pressures up to 150 psi 150 or 300 lb. class
and up to 300 psi with special and up to 300 psi with special
orifice. orifice. Standard pressures up to 500 psi HIGH VENTING CAPACITY
and up to 800 psi with special Standard pressures up to 150 psi
Concave float is patented. orifice. and up to 300 psi with special
orifice.
#20 6

2” Inlet
PHYSICAL DIMENSIONS
AIR VALVES

Height . . . . . . . . 14”
Width . . . . . . . . . 12”
Weight . . . . . . . .115 lbs.
FOR SELECTION AND SIZING Flanged inlet available
OF ALL THE ABOVE AIR VALVES, 400 or 600 lb. class
SEE BACK PAGE OF THIS BULLETIN Standard pressures up to 800 psi
OR ASK FOR APCO AIR VALVE and up to 1,500 psi with special
SIZING SOFTWARE. orifice.

117
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 HOW TO SELECT . . .
VENTING CAPACITY GRAPH FOR AIR RELEASE VALVES
1 1 3
1500
ORIFICE SIZES ⁄32 ⁄16 ⁄32 1⁄8 5⁄323⁄16 7⁄32 1⁄4 5⁄16 3⁄87⁄16 1⁄2
1000 3
. . . AND SIZE AN AIR RELEASE ⁄4

PRESSURE DIFFERENTIAL ACROSS VALVE IN P. S . I .

500
1
VALVE WHEN A SPECIFIC
VENTING CAPACITY IS 200
150

REQUIRED. 100

A. Enter GRAPH with pressure in system and 50

venting capacity required.

20
B. Read off nearest orifice diameter to intersec-
10
tion of pressure and capacity lines on GRAPH.
5
C. Enter TABLE BELOW with orifice diameter
and select valve which can use this orifice
2
diameter at the pressure involved.
1
0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 200 500 1000 2000 5000
VENTING CAPACITY IN CUBIC FEET OF FREE AIR PER MINUTE

1/2” SHUT-OFF
VALVE

QUICK
DISCONNECT
COUPLING
S E W A G E A I R R E L E A S E

STANDARD OPERATING PRESSURE 175 PSI.

HIGHER PRESSURES AVAILABLE.

#4 00 #45 0
BACK
FLUSHING
2, 3, 4” 2, 3, 4”
HOSE
PHYSICAL DIMENSIONS PHYSICAL DIMENSIONS
Height . . . . . . . . . . 17 1⁄2” Height . . . . . . . . . . 20”
Max. Diameter . . . 7 1⁄2” Max. Diameter . . . 9 1⁄2”
CONCAVE
FLOAT
Weight . . . . . . . . . . 41 lbs. Weight . . . . . . . . . . 85 lbs.
PATENTED 1”
BLOW-OFF VALVE WITH ACCESSORIES VALVE WITH ACCESSORIES
VALVE
Height . . . . . . . . . . 24” Height . . . . . . . . . . 27”
2”
SHUT-OFF
VALVE
Weight . . . . . . . . . . 55 lbs. Weight . . . . . . . . . . 118 lbs.
Inlet— 2”, 3” or 4” pipe thread Inlet— 2”, 3” or 4” pipe thread

INLET MAXIMUM ORIFICE SIZES WHICH CAN BE USED WITH THE FOLLOWING PRESSURES
MODEL
SIZE 10 25 50 75 100 125 150 200 250 300 500 800 1500
50 ⁄ , ⁄ ,1”
1 3
2 4 3/32 3/32 3/32 3/32 3/32 3/32 3/32 1/16 1/16 1/16 x x x
55 1/2” 3/32 3/32 3/32 3/32 3/32 3/32 3/32 x x x x x x
65 3/4” 7/32 7/32 7/32 7/32 1/8 1/8 1/8 x x x x x x
200A 1”,2” 5/16 5/16 5/16 1/4 3/16 3/16 3/16 5/32 5/32 5/32 x x x
200 2” 1/2 1/2 1/2 1/2 3/8 3/8 3/8 7/32 7/32 7/32 x x x
205 2” x x x x 1/2 3/8 3/8 7/32 7/32 7/32 7/32 1/8 x
206 2” x x x x x x x x x x x x 3/32
207 6” 1 1 1 1 1 1 1 3/4 3/4 3/4 x x x
400 2”,3”,4” 5/16 5/16 5/16 1/4 1/4 1/4 1/4 3/16 5/32 5/32 x x x
450 2”,3”,4” 1/2 1/2 1/2 1/2 1/2 1/2 1/2 7/16 7/16 7/16 x x x
STANDARD ORIFICES ON CHART ARE SHADED IN BLUE

VALVE & PRIMER CORPORATION VALVE & PRIMER CORPORATION HEREBY RESERVES THE RIGHT TO CHANGE ANY

1420 WRIGHT BLVD. • SCHAUMBURG, IL 60193-4599 COMPONENT PARTS WHICH, IN THE OPINION OF ITS ENGINEERING DEPARTMENT,
WILL IMPROVE THE PRODUCT OR INCREASE ITS SERVICEABILITY.
118
4 847.524.9000 • FAX:847.524.9007 • 800.323.6969
website: www.apcovalves.com • e-mail: factory@apcovalves.com
DIMENSIONS ARE FOR ILLUSTRATIVE PURPOSES ONLY.
INFORMATION WITH
PLEASE CONFIRM ALL DIMENSIONAL
VALVE & PRIMER CORPORATION ENGINEERING DEPARTMENT.