Severe-Service Union-Bonnet Needle Valves—N Series and HN Series 1

www.swagelok.com

Seve re -Se r vice Union-Bonnet

Ne edle Valve s

NEEDLE
SERIES
N Se r ie s a nd HN Se r ie s N / HN

■ Working pressures up to 10 000 psig (689 bar)

■ Temperatures from –65 to 450°F (–53 to 232°C) with PTFE packing;

up to 1200°F (648°C) with Grafoil® packing
■ 316 stainless steel; 316/316L dual certified stainless steel (SSD), alloys 400, 600, and C-276;
and titanium materials
■ Low Emissions certification per API 624 available
 2 Needle and Metering Valves

Features
Stem Designs
■ Ball tip (NB)—3N, 6N, 12N, and 6HN Packing bolt design permits
packing adjustments in the
■ Regulating (NR)—all models
open position
■ PCTFE soft-seat regulating (NKR)—all models
Rolled and plated 316 SS stem
■ PTFE soft-seat regulating (NTR)—3N, 6N, 3HN,
threads enhance cycle life
and 6HN
Union-bonnet construction
Orifice Sizes prevents accidental valve
■ 0.156 in. (4.0 mm)—3N and 3HN disassembly
■ 0.250 in. (6.4 mm)—6N and 6HN
Safety back seating seals
■ 0.437 in. (11.1 mm)—12N
in fully open position
Flow Coefficients (Cv)
■ From 0.35 to 2.4 Nonrotating ball stem tip
(shown) provides repetitive,
Flow Patterns leak-tight shutoff; regulating
stem tip available
■ Straight—all models
■ Angle—3N, 6N, and 12N

Pressure-Temperature Ratings
Ratings are based on manual valves with optional Grafoil® packing. Ratings are limited to:
■ 200°F (93°C) max with PCTFE stem tip (NKR).
■ 250°F (121°C) max with UHMWPE stem packing.
■ 450°F (232°C) max with PTFE stem tip (NTR) or stem packing.
■ 600°F (315°C) max with PEEK stem packing and 316 SS, 316/316L SSD, alloy 600, alloy C-276, or titanium; 500°F (260°C) max
with PEEK stem packing and alloy 400 (alloy 400 available in N series only).
■ 1000°F (537°C) max with 316/316L SSD body, bonnet and stem components.
See Stem Packing Materials, page 10, for more information about packing materials.
NEEDLE
SERIES
N / HN
 Severe-Service Union-Bonnet Needle Valves—N Series and HN Series 3

N Series
ASME Class 2500 N/A
Material Group 2.2 N/A 3.4 3.5 N/A N/A
Material Name 316 SS 316/316L SSD Alloy 400 Alloy 600 Alloy C-276 Titanium
Temperature, °F (°C) Working Pressure, psig (bar)
–65 (–53) to 100 (37) 6000 (413) 6000 (413) 5000 (344) 6000 (413) 6000 (413) 3570 (245)
200 (93) 5160 (355) 5160 (355) 4400 (303) 5600 (385) 6000 (413) 3110 (214)
250 (121) 4910 (338) 4910 (338) 4260 (293) 5460 (376) 6000 (413) 2840 (195)
300 (148) 4660 (321) 4660 (321) 4120 (283) 5320 (366) 6000 (413) 2570 (177)
350 (176) 4470 (307) 4470 (307) 4050 (279) 5220 (359) 5975 (411) 2385 (164)
400 (204) 4280 (294) 4280 (294) 3980 (274) 5120 (352) 5880 (405) 2200 (151)
450 (232) 4130 (284) 4130 (284) 3970 (273) 5030 (346) 5710 (393) 2055 (141)
500 (260) 3980 (274) 3980 (274) 3960 (272) 4940 (340) 5540 (381) 1885 (129)
600 (315) 3760 (259) 3760 (259) — 4780 (329) 5040 (347) 1625 (111)
650 (343) 3700 (254) 3700 (254) — 4700 (323) 4905 (337) —
700 (371) 3600 (248) 3600 (248) — 4640 (319) 4730 (325) —
750 (398) 3520 (242) 3520 (242) — 4430 (305) 4430 (305) —
800 (426) 3460 (238) 3460 (238) — 4230 (291) 4230 (291) —
850 (454) 3380 (232) 3380 (232) — 4060 (279) 4060 (279) —
900 (482) 3280 (225) 3280 (225) — 3745 (258) 3745 (258) —
950 (510) 3220 (221) 3220 (221) — 2725 (187) 3220 (221) —
1000 (537) 3030 (208) 3030 (208) — 1800 (124) 3030 (208) —
1050 (565) 3000 (206) — — 1155 (79.5) 3000 (206) —
1100 (593) 2685 (184) — — 770 (53.0) 2685 (184) —
1150 (621) 2285 (157) — — 565 (38.9) 2285 (157) —
1200 (648) 1715 (118) — — 515 (35.4) 1545 (106) —

HN Series (High Pressure)

ASME Class N/A N/A
Material Group N/A N/A
Material Name 316 SS 316/316L SSD
Temperature Working Pressure
°F (°C) psig (bar)
–65 (–53) to 100 (37) 10 000 (689) 10 000 (689)
200 (93) 9 290 (640) 9 290 (640)
250 (121) 8 840 (609) 8 840 (609)

NEEDLE
SERIES
N / HN
300 (148) 8 390 (578) 8 390 (578)
350 (176) 8 045 (554) 8 045 (554)
400 (204) 7 705 (530) 7 705 (530)
450 (232) 7 435 (512) 7 435 (512)
500 (260) 7 165 (493) 7 165 (493)
600 (315) 6 770 (466) 6 770 (466)
650 (343) 6 660 (458) 6 660 (458)
700 (371) 6 480 (446) 6 480 (446)
750 (398) 6 335 (436) 6 335 (436)
800 (426) 6 230 (429) 6 230 (429)
850 (454) 6 085 (419) 6 085 (419)
900 (482) 5 905 (406) 5 905 (406)
950 (510) 5 795 (399) 5 795 (399)
1000 (537) 5 450 (375) 5 450 (375)
1050 (565) 5 400 (372) —
1100 (593) 4 835 (333) —
1150 (621) 4 115 (283) —
1200 (648) 3 085 (212) —
For more information about pressure ratings of valves with tube fitting end connections, refer to Swagelok® Tubing Data catalog, MS-01-107. Pressure ratings of
valves with VCR® or VCO ® fitting end connections are based on the ratings of the mating fitting; refer to Swagelok VCR Metal Gasket Face Seal Fittings catalog,
MS-01-24, and Swagelok VCO O-Ring Face Seal Fittings catalog, MS-01-28, (VCR and VCO fittings available in N series only).
 4 Needle and Metering Valves

Materials of Construction
1 Valve Body Material
2 3
316/316L
316 SS SSD Alloy 400 Alloy 600 Alloy C-276 Titanium
4 Component Material Grade/ASTM Specification
1 Handle Anodized aluminum 2024T4/B211
5 2 Handle pin Nickel cadmium-plated steel/A108
3 Set screw Nickel cadmium-plated steel
6
4 Lock nut 316 SS/A276 or A479
5 Panel nut 316 SS/B783
7 6 Union nut
316 SS/A276
7 Packing bolt
Silver-
8 8 Gland
316 SS/ 316 SS/A479 Alloy 400/
plated alloy
Alloy C-276/ Ti grade 4/
9 A276 or B895 B164 B574 B348
600/B166
10 9 Packing supports Glass-filled PTFE
9
10 Packing PTFE/D1710
316 SS/ 316/316L Alloy 400/ Alloy 600/ Alloy C-276/ Ti grade 4/
11 11 Bonnet
A479 SSD/A479 B164 B166 B574 B348
14a
12a NTR or NKR soft- Silver- Silver-plated Silver-
13 seat regulating plated 316/316L
Alloy 400/
plated alloy
Alloy C-276/ Ti grade 4/
B164 B574 B348
stem shank 316 SS/A276 SSD/A276 600/B166
14b 12b Soft-seat tip NTR stem—PTFE/D1710; NKR stem—PCTFE
12a 13 NR regulating
stem Silver-plated Silver-
Silver-plated Alloy 400/ Alloy C-276/ Ti grade 4/
316/316L plated alloy
14a NB ball tip 316 SS/A276 B164 B574 B348
SSD/A276 600/B166
stem shank
Cobalt-based Cobalt-based Material must be selected;
14b NB ball stem tip
12b alloy alloy see Ball Stem Tip Materials, page 6.

Ti grade 4/
316/316L Alloy 400/ Alloy 600/
316 SS/ Alloy C-276/ B348 or
15 Body SSD/ B164, B127, B166 or
15 A479
A479 or B564 B564
B564 Ti grade
F4/B381
NEEDLE
SERIES
N / HN

Lubricant Nickel antiseize with hydrocarbon carrier (all valves);hydrocarbon-based (NB ball tip)
Wetted components listed in italics.

Flow Data at 100°F (37°C) Testing

Every N series and HN series needle valve is factory tested with
NR, NTR, and NKR Regulating Stems
nitrogen at 1000 psig (69 bar). Seats have a maximum allowable
Flow Coefficient at Turns Open leak rate of 0.1 std cm3/min. Shell testing is performed to a
requirement of no detectable leakage with a liquid leak detector.

Cleaning and Packaging

Flow Coefficient (Cv)

12N Series
All N series and HN series needle valves are cleaned and
packaged in accordance with Swagelok Standard Cleaning and
Packaging (SC-10) catalog, MS-06-62. Cleaning and packaging
in accordance with Swagelok Special Cleaning and Packaging
6N, 6HN Series (SC-11) catalog, MS-06-63, to ensure compliance with product
cleanliness requirements stated in ASTM G93 Level C are
available as an option.
3N, 3HN Series

Number of Turns Open Low Fugitive Emissions

The American Petroleum Institute’s API 624 tests for fugitive
emissions to atmosphere for rising stem valves. The tests are
NB Ball Stem Tip conducted at a third party lab and certify that at no point in the test
The NB stem is designed to be used in a fully open or fully did the valve leak in excess of 100 ppm of methane. Certificates
closed position. See Dimensions for flow coefficients. stating that the valve is certified for Low Emissions service are
available for valves with PTFE packing. For more information,
contact your authorized Swagelok sales and service representative.
 Severe-Service Union-Bonnet Needle Valves—N Series and HN Series 5

Ordering Information and Dimensions F

Dimensions, in inches (millimeters), are for reference only and Angle

are subject to change. pattern
F
N Series Straight
Panel
thickness
pattern G 1/16 (1.6) min,
panel 3/8 (9.5) max
H
hole drill open
Panel
G thickness
panel 1/16 (1.6) min,
hole drill 3/8 (9.5) max H Socket
open D2 weld end
connection

D1
B2

B B E2 B1 J
A E1 C

End Connections Dimensions, in. (mm)

Ordering H H
Inlet/Outlet Size Cv Number A B B1 B2 C D1 D2 E1 E2 F G Straight Angle J
3N Series: 0.156 in. (4.0 mm) Orifice
2.00 1.00 0.38
1/8 in. SS-3NBF2
Female (50.8) (25.4) 0.89 1.27 1.28 (9.7) 3.23
NPT 2.06 1.03 (22.6) (32.3) (32.5) 0.39 (82.0)
1/4 in. SS-3NBF4
(52.3) (26.2) 1.00 (9.9)
2.00 1.00 1.00 (25.4) 1.38 1.09 0.38 0.38 3.05
Male NPT 1/4 in. SS-3NBM4
(50.8) (25.4) (25.4) (35.1) (27.7) (9.7) (9.7) (77.5) —
Male/ 2.03 1.03 0.89 1.27 1.28 0.39 3.23
1/4 in. SS-3NBM4-F4
female NPT (51.6) (26.2) (22.6) (32.3) (32.5) (9.9) (82.0)
1/4 in. 1.09 1.75 19/32 3.05
0.35 SS-3NBS4 1.16 1.48 1.54 1.09 3.05
Swagelok 2.40 1.20 (29.5) (37.6) (39.1) (27.7) (27.7) (44.4) (15.1) (77.5)
(77.5)
6 mm SS-3NBS6MM
tube fittings (61.0) (30.5)
8 mm SS-3NBS8MM — — — — — —
Tube socket 1.82 0.91 0.38 0.28
1/4 in. SS-3NBSW4T
welds (46.2) (23.1) 0.88 1.19 1.25 1.09 0.38 3.05 (7.1)

NEEDLE
(9.7)

SERIES
N / HN
Male VCO (22.4) (30.2) (31.8) (27.7) (9.7) (77.5)
1/4 in. SS-3NBVCO4
fittings 2.06 1.03
—
Male VCR (52.3) (26.2)
1/4 in. SS-3NBVCR4 — — — — — —
fittings
6N Series: 0.250 in. (6.4 mm) Orifice

1/4 in. SS-6NBF4

2.25 1.12 1.00 1.12 1.50 1.47 3.82
Female NPT
(57.2) (28.4) (25.4) (28.4) (38.1) (37.3) (97.0)
3/8 in. SS-6NBF6

2.83 1.41 1.29 1.66 1.79 1.22 3.57

3/8 in. SS-6NBS6
(71.9) (35.8) (32.8) (42.2) (45.5) (31.0) (90.7)
—
3.04 1.52 1.40 1.65 1.90 1.34 3.70
1/2 in. SS-6NBS8
Swagelok (77.2) (38.6) (35.6) (41.9) (48.3) (34.0) (94.0)
tube fittings 2.85 1.42 1.30 1.55 1.80 1.34 0.50 3.70
10 mm SS-6NBS10MM
(72.4) (36.1) (33.0) (39.4) (45.7) 1.34 (34.0) 0.50 (12.7) 3.70 (94.0)
3.04 1.52 1.40 1.65 1.90 (34.0) (12.7) 2.50 25/32 (94.0)
12 mm 0.86 SS-6NBS12MM
(77.2) (38.6) (35.6) (41.9) (48.3) 1.34 (63.5) (19.8) 3.70
1.25 (34.0) (94.0) 0.31
Tube 3/8 in. SS-6NBSW6T
(31.8) (7.9)
socket
welds 1.00 1.00 1.50 1.40 3.76
1/2 in. SS-6NBSW8T
2.25 1.12 (25.4) (25.4) (38.1) (35.6) (95.5) 0.38
Pipe socket (57.2) (28.4) 1.12 1.47 3.82 (9.7)
1/4 in. SS-6NBSW4P
welds (28.4) (37.3) (97.0)
Male VCO
1/2 in. SS-6NBVCO8
fittings
— — — — — — —
Male VCR 3.12 1.56 1.53 0.62 3.89
1/2 in. SS-6NBVCR8
fittings (79.2) (39.6) (38.9) (15.7) (98.8)
Dimensions shown with Swagelok tube fitting nuts finger-tight.
 6 Needle and Metering Valves

Ordering Information and Dimensions

N Series Ball Stem Tip Materials
Ball Stem Tip Material/
Select an ordering number. Ordering numbers specify a cobalt- ASTM Specification Designator
To order other valve body materials, based alloy ball stem tip. N series Cobalt-based alloy -STE
replace SS in the ordering number with valves of 316 SS are standard with this 440C SS/A276 -440C
a material designator. stem tip and require no designator.
Alloy 400/B127 or B164 -M
Example: M-3NBF2 To specify ball stem tip material for
Alloy C-276/B574 or B575 -HC
valves of other materials, add a
Titanium/B348 or B265 -TI
Material Designator designator to the ordering number.
Alloy 400 M Example: INC-6NBF4-HC
Alloy 600 INC
Angle-Pattern Valves Options and Accessories
Alloy C-276 HC
Ordering numbers that list C dimensions See page 10 for information about
Titanium TI
are available in angle patterns. To order, optional stem packings, stem designs,
316/316L SSD
add -A to the ordering number. handles, and sour gas valves.
Example: SS-12NBF8-A

End Connections Dimensions, in. (mm)

Ordering H H
Inlet/Outlet Size Cv Number A B B1 B2 C D1 D2 E1 E2 F G Straight Angle J
12N Series: 0.437 in. (11.1 mm) Orifice
3.12 1.56 1.31 1.56 2.00 1.82 2.00 0.62 0.69 4.78 4.97
1/2 in. SS-12NBF8
(79.2) (39.6) (33.3) (39.6) (50.8) (46.2) (50.8) (15.7) (17.5) (121) (126)
Female 3.25 1.62 1.91 0.78 4.88
3/4 in. 2.4 SS-12NBF12
NPT (82.6) (41.1) (48.5) (19.8) (124)
— — — — — —
3.62 1.81 2.13 1.00 5.10
1 in. SS-12NBF16
(91.9) (46.0) (54.1) (25.4) (129)
3.12 1.56 1.31 1.56 2.00 1.82 2.00 0.62 0.69 4.78 4.97
1/2 in. SS-12NBM8-F8
(79.2) (39.6) (33.3) (39.6) (50.8) (46.2) (50.8) (15.7) (17.5) (121) (126)
Male/ 3.25 1.62 1.91 0.78 4.88
3/4 in. 1.9 SS-12NBM12-F12 —
female NPT (82.6) (41.1) (48.5) (19.8) (124)
— — — — — —
3.62 1.81 2.13 1.00 5.10
1 in. SS-12NBM16-F16
(91.9) (46.0) (54.1) (25.4) (129)
1/2 in . 2.1 SS-12NBS8 3.92 1.96 1.68 2.08 2.37 1.82 1.88 0.62 0.69
NEEDLE
SERIES
N / HN

3/4 in. SS-12NBS12 (99.6) (49.8) (42.7) (52.8) (60.2) (46.2) (47.8) (15.7) (17.5) 3.50 1 1⁄32
Swagelok 2.4 4.09 2.04 1.88 0.69 (88.9) (26.2)
tube fittings 1 in. SS-12NBS16
(104) (51.8)
— — —
(47.8)
—
(17.5)
—
4.85
3.92 1.96 1.68 2.08 2.37 4.78 (123)
12 mm 1.9 SS-12NBS12MM (121)
(99.6) (49.8) (42.7) (52.8) (60.2) 1.88 0.69
1.31 1.69 2.00 1.82 (47.8) 0.62 (17.5) 0.38
Tube 1/2 in. SS-12NBSW8T
(33.3) (42.9) (50.8) (46.2) (15.7) (9.7)
socket 2.2
welds 0.44
3/4 in. SS-12NBSW12T — — — — — —
(11.2)
Pipe socket 3.12 1.56 1.31 1.56 2.00 1.88 2.00 0.69 0.69 4.85 4.97 0.38
1/2 in. 2.4 SS-12NBSW8P
welds (79.2) (39.6) (33.3) (39.6) (50.8) (47.8) (50.8) (17.5) (17.5) (123) (126) (9.7)
Male VCO
3/4 in. 2.2 SS-12NBVCO12
fittings 1.82 0.62 4.78
— — — — — — —
Male VCR (46.2) (15.7) (121)
1/2 in. 1.9 SS-12NBVCR8
fittings
 Severe-Service Union-Bonnet Needle Valves—N Series and HN Series 7

Ordering Information and Dimensions

HN Series (High Pressure) Dimensions, in inches (millimeters), are for reference only and are subject to change.
Select an ordering number.
HN Series
Ordering numbers specify a regulating
E
stem tip. Cobalt-based alloy ball stem
tips are available for 6HN series valves.
To order, replace NR in the ordering Panel
number with NB. thickness
F 1/4 (6.4) max
Example: 6HNBF4 panel H Socket
hole drill open weld end
Options and Accessories connection
See page 10 for information about
optional stem designs, stem packings, C
and sour gas valves.

B B J
A

End Connections Dimensions, in. (mm)

Ordering
Inlet/Outlet Size Number A B C D E F H J
3HN Series: 0.156 in. (4.0 mm) Orifice; 0.35 Cv
1/8 in. SS-3HNRF2
Female NPT
1/4 in. SS-3HNRF4
2.25 1.13
Male NPT 1/4 in. SS-3HNRM4 (57.2) (28.7)
—
Male/ 1.34 0.50 2.50 0.81 3.43
1/4 in. SS-3HNRM4-F4
female NPT (34.0) (12.7) (63.5) (20.6) (87.1)
Swagelok 2.82 1.41
1/4 in. SS-3HNRS4
tube fittings (71.6) (35.8)
Tube socket 2.25 1.13 0.28
1/4 in. SS-3HNRSW4T
welds (57.2) (28.7) (7.1)
6HN Series: 0.250 in. (6.4 mm) Orifice; 0.86 Cv

NEEDLE
SERIES
3.13 1.56 1.81 0.63 4.27

N / HN
1/4 in. SS-6HNRF4
(79.5) (39.6) (46.0) (16.0) (108)
Female NPT
3.25 1.63 1.90 0.78 4.36
1/2 in. SS-6HNRF8
(82.6) (41.4) (48.2) (19.8) 3.50 1.06 (111)
—
3.13 1.56 1.81 0.63 (88.9) (26.9) 4.27
Male NPT 1/2 in. SS-6HNRM8
(79.5) (39.6) (46.0) (16.0) (108)
Male/ 3.25 1.63 1.90 0.78 4.36
1/2 in. SS-6HNRM8-F8
female NPT (82.6) (41.4) (48.2) (19.8) (111)
Dimensions shown with Swagelok tube fitting nuts finger-tight.
 8 Needle and Metering Valves

Pneumatic Actuators
Swagelok 3N and 6N series valves can be equipped with Pneumatic Actuator Performance
pneumatic actuators in normally closed, normally open, and
Minimum actuator pressures and maximum system pressures
double-acting models.
shown in the graphs below are based on factory adjustment of
packing and stems lubricated with a silicone-based lubricant.
Actuator Technical Data
Packing nut adjustment may affect actuator performance. If
Pressure-Temperature Ratings the load is too low, the packing may leak. If the load is too
Normally closed: high, the actuator may stall and the valve will not cycle.
150 psig at ­–20 to 300°F
(10.3 bar at –28 to 148°C) Normally Closed Actuators
Normally open and double acting: Adjustment of the actuator stem
150 psig at –20 to 400°F drive nut affects actuator spring
(10.3 bar at –28 to 204°C) force, which in turn affects:
■ the maximum system pressure
Dimensions that can be shut off by the valve
■ the minimum actuator pressure
C required to open the valve.
D
Figures 1 and 2 show the minimum
actuator pressure required to
Stem
drive open a normally closed actuator at
nut system pressure.
Maximum system pressure for a 3N
valve with normally closed actuator:
1/8-27
NPT ■ NR, NTR, or NKR stem—
F 3000 psig (206 bar).
■ NB stem—4400 psig (303 bar).
3/8 in. 4 mounting holes for
(9.5 mm) Maximum system pressure for a 6N
1/4 in. (6.4 mm) dia
bolts at 90° valve with normally closed actuator:
Normally Closed
A ■ NR, NTR, or NKR stem—
3600 psig (248 bar).
■ NB stem—4600 psig (316 bar).
NEEDLE

Fig. 1—3N Series with Normally Closed Actuator

SERIES
N / HN

Normally Closed System Pressure, bar

Minimum Actuator Pressure, psig

Minimum Actuator Pressure, bar

1/8-27 1/8-27
NPT C NPT C
D D
Full Open NR, NTR, NKR NB

E E

3/8 in.
B (9.5 mm)
B
A
A
System Pressure, psig

Fig. 2— 6N Series with Normally Closed Actuator

System Pressure, bar
Minimum Actuator Pressure, psig

Minimum Actuator Pressure, bar

Normally Open Double Acting

Full Open NR, NTR, NKR NB

Dimensions, in. (mm)
Valve
Series A B C D E F
4.22 5.91 3.75 3.25 1.12 8.47
3N
(107) (150) (95.3) (82.6) (28.4) (215)
4.47 6.22 4.25 3.81 1.19 9.41
6N
(114) (158) (108) (96.8) (30.2) (239)
Dimensions are for reference only and are subject to change.
System Pressure, psig
 Severe-Service Union-Bonnet Needle Valves—N Series and HN Series 9

Pneumatic Actuators
Ordering Information Actuator Designator
To order a 3N or 6N series valve equipped with a pneumatic Valve Normally Normally Double
actuator, add a designator to the valve ordering number. Series Closed Open Acting
Example: SS-3NBS4-95C­ 3N -95C -95O -95D
6N -96C -96O -96D

Normally Open Actuators Double-Acting Actuators

The amount the stem orifice opens beyond the cracked-open Figures 5 and 6 show the minimum
position depends on system pressure, flow characteristics, actuator pressure required to open
and valve packing nut adjustment. or close a 3N or 6N series valve with
Figures 3 and 4 show the minimum actuator pressure a double-acting actuator at system
required to close a normally open actuator at system pressure.
pressure.
Minimum system pressure
required to assist the spring in
opening the valve:
■ 3N series with normally open
actuator—1000 psig (69.0 bar).
■ 6N series with normally open
actuator—500 psig (34.5 bar).

Normally Open Double Acting

Fig. 3—3N Series with Normally Open Actuator Fig. 5—3N Series with Double-Acting Actuator

NEEDLE
SERIES
N / HN
System Pressure, bar System Pressure, bar
Minimum Actuator Pressure, psig
Minimum Actuator Pressure, psig

Minimum Actuator Pressure, bar

Minimum Actuator Pressure, bar

PEEK Stem Packing

PTFE or UHMWPE
Stem Packing

System Pressure, psig System Pressure, psig

Fig. 4—6N Series with Normally Open Actuator Fig. 6—6N Series with Double-Acting Actuator
System Pressure, bar System Pressure, bar
Minimum Actuator Pressure, psig

Minimum Actuator Pressure, psig

Minimum Actuator Pressure, bar

Minimum Actuator Pressure, bar

PEEK Stem Packing

PTFE or UHMWPE
Stem Packing

System Pressure, psig System Pressure, psig

 10 Needle and Metering Valves

Options and Accessories

N Series and HN Series
Stem Packing Materials Stem Designs
PTFE packing is standard. N series valve ordering numbers
Stem Packing Stem Design Designator
To order an optional stem Material Designator
specify NB ball stem tips. HN
packing material, add a stem series valve ordering numbers Regulating➀ NR
UHMWPE -P PCTFE soft-seat
packing material designator specify NR regulating stem tips. NKR
to the valve ordering number. PEEK -PK To order valves with other stem regulating
See page 2 for pressure- Grafoil -G designs, replace NB or NR in PTFE soft-seat
NTR
regulating➁
temperature ratings of valves the ordering number with the
with optional stem packing materials. desired stem design designator. ➀ Not intended for repetitive
shutoff in gas applications.
UHMWPE (ultrahigh-molecular weight polyethylene) is Examples: SS-3NRF2 ➁ Not available in 12N series.
intended for service where fluorocarbons are not acceptable. SS-3HNKRF2
UHMWPE packing is lubricated with nickel antiseize with
hydrocarbon carrier; it does not require packing supports. Sour Gas Valves
PEEK (polyetheretherketone) packing material is a 2-piece Valves with female pipe ends are available for sour gas
chevron design including PEEK packing supports and service. Materials are selected in accordance with NACE
molybdenum disulfide, fluorinated tungsten disulfide-based MR0175/ISO 15156. The body and bonnet are annealed 316
lubricant; stem packing replacement kits also contain nickel stainless steel; the stem is alloy 400. To order, add -SG to the
antiseize with hydrocarbon carrier. PEEK packing is not valve ordering number.
available in normally open or normally closed pneumatically Examples: SS-3NBF2-SG
actuated N series valves. SS-3HNRF2-SG
Grafoil is a high-temperature packing material that does
not require packing supports. Factory assemblies contain Special Cleaning and Packaging (SC-11)
fluorinated tungsten disulfide-based lubricant and nickel To order N series and HN series valves with optional cleaning
antiseize with hydrocarbon carrier; stem packing replacement and packaging to ensure compliance with product cleanliness
kits contain only nickel antiseize with hydrocarbon carrier. requirements stated in ASTM G93 Level C, add -SC11 to the
Grafoil is not available in pneumatically actuated N series valve ordering number.
valves or 12N series valves with colored phenolic knobs. Example: SS-3NBF2-SC11
Examples: SS-3HNRF4-P
SS-6NBS8-PK
SS-12NBF8-G

Stem Packing Kits

NEEDLE
SERIES
N / HN

PTFE, UHMWPE, PEEK, and Grafoil stem packing kits are

available. Kits contain stem packing(s), lubricant(s), and
instructions.

Seal Material and Kit Ordering Number

Valve
Series PTFE UHMWPE Grafoil PEEK
3N, 3HN T-9K-3N PE-9K-3N G-9K-3N PK-9K-3N
6N, 6HN T-9K-6N PE-9K-6N G-9K-6N PK-9K-6N
12N T-9K-12N PE-9K-12N G-9K-12N PK-9K-12N
Nickel
antiseize with
hydrocarbon
carrier and
fluorinated
Nickel antiseize with tungsten
Lubricant
hydrocarbon carrier disulfide-
based;
molybdenum
disulfide-
based
coating
 Severe-Service Union-Bonnet Needle Valves—N Series and HN Series 11

Options and Accessories

N Series Handles HN Series Ball Stem Tip Materials
Anodized black aluminum bar handles are standard. Colored Cobalt-based alloy is standard. To specify other ball tip
phenolic (with brass insert) and 316 stainless steel bar materials, add a ball stem tip material designator to the valve
handles are available. ordering number:
Exception: 12N series valves with Grafoil packing are not Example: SS-6HNBF4-M
available with colored phenolic knobs.
To order, add a handle designator to the valve ordering Ball Tip Material/
number. ASTM Specification Designator
440C SS/A276 -440C
Examples: SS-3NBS4-BKP
SS-12NBF8-SH Alloy 400/B127 or B164 -M
Alloy C-276/B574 or B575 -HC
Handle Designator
Black phenolic knob -BKP
Blue phenolic knob -BLP
Green phenolic knob -GRP
Orange phenolic knob -OGP
Red phenolic knob -RDP
Yellow phenolic knob -YWP
Stainless steel bar -SH Additional Valve Materials
Alloy 625, alloy 825, Alloy 2507 super duplex stainless steel,
Oxygen Service Hazards and 6-moly materials are available for N and HN series
For more information about hazards and risks of oxygen- valves. Refer to Severe-Service Union-Bonnet Needle
enriched systems, refer to Oxygen System Safety technical Valves—Special Alloy Materials catalog, MS‑02‑365.
report, MS-06-13.

NEEDLE
SERIES
•

N / HN
A packing adjustment may be required periodically
to increase service life and to prevent leakage.
• Valves that have not been cycled for a period of time
may have a higher initial actuation torque.
• To increase service life, ensure proper valve
performance, and prevent leakage, apply only as
much torque as is required to achieve positive
shutoff.

• WARNING
Do not mix/interchange Swagelok products or
components not governed by industrial design
standards, including Swagelok tube fitting end
connections, with those of other manufacturers.
MS-01-168, RevQ, October 2021
 Introduction
Since 1947, Swagelok has designed, developed, and manufactured high-quality,
general-purpose and specialty fluid system products to meet the evolving needs of
global industries. Our focus is on understanding our customers’ needs, finding timely
solutions, and adding value with our products and services.
We are pleased to provide this global edition of the book-bound Swagelok Product
Catalog, which compiles more than 100 separate product catalogs, technical bulletins,
and reference documents into one convenient, easy-to-use volume. Each product
catalog is up to date at the time of printing, with its revision number shown on the last
page of the individual catalog. Subsequent revisions will supersede the printed version
and will be posted on the Swagelok website and in the Swagelok electronic Desktop
Technical Reference (eDTR) tool.
For more information, visit your Swagelok website or contact your authorized
Swagelok sales and service representative.

Warranty Information
Not all trademarks listed below apply to this catalog.
Swagelok products are backed by The Swagelok Limited Life- Swagelok, Cajon, Ferrule-Pak, Goop, Hinging-Colleting,
IGC, Kenmac, Micro-Fit, Nupro, Snoop, Sno-Trik, SWAK, VCO,
time Warranty. For a copy, visit swagelok.com or contact your VCR, Ultra-Torr, Whitey—TM Swagelok Company
authorized Swagelok representative. 15-7 PH—TM AK Steel Corp.
AccuTrak, Beacon, Westlock—TM Tyco International Services
Aflas—TM Asahi Glass Co., Ltd.
ASCO, El-O-Matic—TM Emerson
AutoCAD—TM Autodesk, Inc.
CSA—TM Canadian Standards Association
Safe Product Selection Crastin, DuPont, Kalrez, Krytox, Teflon, Viton—TM E.I. duPont
When selecting a product, the total system design must Nemours and Company
DeviceNet—TM ODVA
be considered to ensure safe, trouble-free performance. Dyneon, Elgiloy, TFM—TM Dyneon
Function, material compatibility, adequate ratings, Elgiloy—TM Elgiloy Specialty Metals
FM —TM FM Global
proper installation, operation, and maintenance are the Grafoil—TM GrafTech International Holdings, Inc.
Honeywell, MICRO SWITCH—TM Honeywell
responsibilities of the system designer and user. MAC—TM MAC Valves
Microsoft, Windows—TM Microsoft Corp.
NACE—TM NACE International
PH 15-7 Mo, 17-7 PH—TM AK Steel Corp
picofast—Hans Turck KG
• WARNING Pillar—TM Nippon Pillar Packing Company, Ltd.
Raychem—TM Tyco Electronics Corp.
Do not mix/interchange Swagelok products or Sandvik, SAF 2507—TM Sandvik AB
components not governed by industrial design Simriz—TM Freudenberg-NOK
SolidWorks—TM SolidWorks Corporation
standards, including Swagelok tube fitting end UL—Underwriters Laboratories Inc.
connections, with those of other manufacturers. Xylan—TM Whitford Corporation
© 2021 Swagelok Company