How to Identify and Measure Fittings
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Precision Extreme-Pressure Brass Threaded Pipe Fittings
Also known as instrumentation fittings, these have the most precise threads and the tightest tolerances of all the brass pipe fittings we offer. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
- Specifications Met: See table
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Female × NPT Male | ||||||
1/8 | 1/16 | 3,200 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 000000 |
1/4 | 1/8 | 4,300 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
3/8 | 1/8 | 3,500 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
3/8 | 1/4 | 3,500 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
1/2 | 1/4 | 2,400 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
1/2 | 3/8 | 2,400 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
3/4 | 1/2 | 3,000 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
- For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
- Specifications Met: See table
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Male × NPT Female | ||||||
1/4 | 1/8 | 3,600 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 000000 |
3/8 | 1/8 | 3,200 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
3/8 | 1/4 | 3,000 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
1/2 | 1/8 | 3,200 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
1/2 | 1/4 | 3,900 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
1/2 | 3/8 | 2,800 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
3/4 | 1/2 | 2,800 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
- For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
- Specifications Met: See table
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Female | ||||||
1/8 | 1/16 | 4,000 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 000000 |
1/4 | 1/8 | 3,200 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
3/8 | 1/4 | 2,600 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
1/2 | 1/4 | 3,600 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 0000000 | 00000 |
1/2 | 3/8 | 2,400 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
3/4 | 1/2 | 2,300 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
- For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
- Specifications Met: See table
Pipe Size | ||||||
---|---|---|---|---|---|---|
(A) | (B) | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Male | ||||||
1/8 | 1/16 | 5,000 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 000000 |
1/4 | 1/8 | 4,100 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
3/8 | 1/8 | 3,900 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.3 | 00000000 | 00000 |
3/8 | 1/4 | 4,000 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
1/2 | 1/4 | 3,900 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
1/2 | 3/8 | 3,900 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
3/4 | 1/2 | 3,800 psi @ 72° F | 1,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 00000000 | 00000 |
- For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
- Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3
Miniature Ultra-High-Pressure-Regulating Valves for Water, Air, and Inert Gas
- For Use With: Water, Air, Argon
- Temperature Range: -15° to 165° F
For extremely high-pressure applications in tight spots, these valves handle the same inlet pressures as other ultra-high-pressure-regulating valves within a smaller footprint. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. All have two gauge ports. Body is nickel-plated aluminum for good corrosion resistance. Valves are no-bleed style, so they keep the process gas contained within the valve.
For technical drawings and 3-D models, click on a part number.
Cleaned and Bagged Pressure-Regulating Valves for Air and Inert Gas
- For Use With: Nitrogen, Oxygen, Argon, Helium, Neon
- Temperature Range: -40° to 165° F
Often used for oxygen service and other high-purity applications, these valves are cleaned and bagged to meet CGA G-4.1 standards to prevent contamination. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have two gauge ports. They are no-bleed style, so they keep process gases contained in the valve.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||
Brass Body—Buna-N Diaphragm and Fluoroelastomer Seal | ||||||||||
1/2 | Side | 500 | 1/2 | Side | 1/4 | Side | 2 13/16" | 00000000 | 0000000 | |
3/4 | Side | 500 | 3/4 | Side | 1/4 | Side | 3 5/16" | 00000000 | 000000 | |
1 | Side | 500 | 1 | Side | 1/4 | Side | 3 5/16" | 00000000 | 000000 |
Tank-Mount Pressure-Regulating Valves for Air and Inert Gas
- For Use With: See Table
- Temperature Range: -20° to 120° F
These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves have a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank.
Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.
Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.
Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.
Valves with a brass body have a longer service life than valves with a brass and steel body.
Valves with a stainless steel diaphragm can withstand harsh environments.
Valves with flared tube outlet fittings form a tight seal on metal tubing.
Inlet | Outlet | Material | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Location | Thread Direction | Pressure Range, psi | Pressure Adjustment Method | Body | Seal | Diaphragm | Each | |
For Use With Argon, Helium, and Nitrogen | ||||||||||||
37° Flared UNF Male Outlet × NGO Male Inlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 10 to 200 | __ | Brass | Polyurethane | Neoprene/Nylon | 00000000 | 0000000 |
45° Flared UN/UNF (SAE 45°) Male Outlet × NGO Male Inlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 250 | T-Handle | Brass | PTFE | Neoprene | 00000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 500 | T-Handle | Brass | PTFE | Neoprene | 00000000 | 000000 |
5/8"-18 UNF Female Outlet × NGO Male Inlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 125 | T-Handle | Brass | PTFE | Stainless Steel | 00000000 | 000000 |
9/16"-18 UNF Male Outlet × NGO Male Inlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 50 | T-Handle | Brass | PTFE | Neoprene | 00000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 125 | T-Handle | Brass | PTFE | Rubber | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 145 | Knob | Brass/Steel | PTFE | Rubber | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 200 | T-Handle | Brass | PTFE | Rubber | 0000000 | 000000 |
Inlet | Outlet | Material | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Location | Thread Direction | Pressure Range, psi | Pressure Adjustment Method | Body | Seal | Diaphragm | Each | |
For Use With Argon, Helium, and Nitrogen | ||||||||||||
1/4 NPT Female Outlet × NGO Male Inlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 250 | T-Handle | Brass | PTFE | Neoprene | 00000000 | 0000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 250 | T-Handle | Brass | PTFE | Stainless Steel | 00000000 | 000000 |
5/8"-18 UNF Female Outlet × NGO Male Inlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 50 | T-Handle | Brass | PTFE | Neoprene | 00000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 50 | T-Handle | Brass | PTFE | Stainless Steel | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 125 | T-Handle | Brass | PTFE | Stainless Steel | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Side | Right Hand | 0 to 125 | T-Handle | Brass/Steel | PTFE | Rubber | 0000000 | 000000 |
High-Purity Tank-Mount Pressure-Regulating Valves for Inert Gas
- For Use With: See Table
- Temperature Range: -20° to 120° F
Reduce contaminants in research sample systems, emission monitoring systems, chromatography, and other high-purity applications that use argon, helium, nitrogen, or carbon dioxide. These valves have a 316 stainless steel and brass body with a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination. They automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Outlet fittings are Swagelok® for a leak-free seal around hard metal tubing in high-pressure lines. Also known as instrumentation fittings, Swagelok® fittings are compatible with Parker A-Lok, Gyrolok, Bilok, and Tylok fittings. Valves have a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank.
Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.
Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.
Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.
Chrome-plated valves add a layer of corrosion resistance.
Inlet | Outlet | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | For Tube OD | Location | Pressure Range, psi | Pressure Adjustment Method | Each | |
Swagelok® Female Outlet × NGO Male Inlet | ||||||||||
Brass Body—316 Stainless Steel Diaphragm and PTFE Seal | ||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 1/4" | Side | 0 to 15 | Knob | 0000000 | 0000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 1/4" | Side | 0 to 125 | Knob | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 1/4" | Side | 0 to 500 | Knob | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Two | 1/4" | Side | 0 to 15 | Knob | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Two | 1/4" | Side | 0 to 50 | Knob | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Two | 1/4" | Side | 0 to 125 | Knob | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Two | 1/4" | Side | 0 to 250 | Knob | 0000000 | 000000 |
Chrome-Plated Brass Body—316 Stainless Steel Diaphragm and PTFE Seal | ||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Two | 1/4" | Side | 0 to 50 | Knob | 0000000 | 000000 |
Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas
- For Use With: See Table
- Temperature Range: -20° to 120° F
Commonly used in TIG welding where gas flow/coverage is a concern, these valves measure the gas flow rate in addition to regulating pressure. They automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves have a gauge to monitor the outlet flow rate and a second gauge to monitor inlet pressure from the tank. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.
Inlet | Outlet | Material | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Flow Gauge Included | Body | Seal | Diaphragm | Includes | Each | |
UNF Female Outlet × NGO Male Inlet | |||||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 60 | Yes | Brass | PTFE | Neoprene | __ | 0000000 | 0000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 60 | Yes | Brass | PTFE | Neoprene | 10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends | 0000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 100 | Yes | Brass | PTFE | Neoprene | __ | 0000000 | 000000 |
Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas
Flowmeters let you see the gas flow rate from a distance. These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. They have a gauge for monitoring inlet pressure from the tank.
Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.
Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.
Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.
Valve with two flowmeters lets you simultaneously run two pieces of equipment from one tank. Both flowmeters have a dual scale.
Adapters (sold separately) change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
Inlet | Outlet | Material | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Male Inlet | ||||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 70 | 1 | Brass | PTFE | Neoprene | 00000000 | 0000000 |
Optional Adapter | 00000000 | Each | 000000 |
Inlet | Outlet | Material | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Male Inlet | ||||||||||||||
CGA 580 | Side | Right Hand | 0 to 3,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 70 (Argon), 0 to 70 (Argon/Carbon Dioxide Blend) | 1 | Brass | PTFE | Neoprene | 0000000 | 0000000 |
Optional Adapter | 00000000 | Each | 000000 |
Inlet | Outlet | Material | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Male Inlet | ||||||||||||||
CGA 580 | Side | Right Hand | 0 to 3,000 | Two | 5/8"-18 | Side | Right Hand | 0 to 40 (Argon), 0 to 40 (Argon/Carbon Dioxide Blend), 0 to 150 (Helium) to150 | 1 | Brass | PTFE | Neoprene | 000000000 | 0000000 |
Optional Adapter | 00000000 | Each | 000000 |
Inlet | Outlet | Material | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Male Inlet | ||||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 60 (Argon), 0 to 60 (Argon/Carbon Dioxide Blend), 0 to 50 (Carbon Dioxide), 0 to 160 (Helium) | 1 | Brass | Buna-N | Brass | 000000000 | 0000000 |
Optional Adapter | 00000000 | Each | 000000 |
Inlet | Outlet | Material | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | Thread Size | Location | Thread Direction | Flow Range, scfh | Number of Flowmeters | Body | Seal | Diaphragm | Each | |
UNF Female Outlet × NGO Male Inlet | ||||||||||||||
CGA 580 | Side | Right Hand | 0 to 3,000 | Two | 5/8"-18 | Side | Right Hand | 0 to 18 (Argon), 0 to 50 (Helium) | 1 | Brass | PTFE | Neoprene | 000000000 | 0000000 |
CGA 580 | Side | Right Hand | 0 to 3,000 | Two | 5/8"-18 | Side | Right Hand | 0 to 65 (Argon), 0 to 200 (Helium) | 1 | Brass | PTFE | Neoprene | 000000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 45 (Argon), 0 to 140 (Helium) | 1 | Brass | PTFE | Neoprene | 00000000 | 000000 |
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 5/8"-18 | Side | Right Hand | 0 to 45 (Argon), 0 to 140 (Helium) | 2 | Brass | PTFE | Neoprene | 0000000 | 000000 |
Optional Adapter | 00000000 | Each | 000000 |
Tank-Mount High-Pressure-Regulating Valves for Air and Inert Gas
- For Use With: See Table
- Temperature Range: -20° to 120° F
Often used for pressure-vessel testing and other high-pressure applications, these valves can handle at least seven times the outlet pressure of standard tank-mount pressure-regulating valves. They automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Outlet fittings are Swagelok® for a leak-free seal around hard metal tubing in high-pressure lines. Also known as instrumentation fittings, Swagelok® fittings are compatible with Parker A-Lok, Gyrolok, Bilok, and Tylok fittings. Valves have a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.
Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.
Inlet | Outlet | Material | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
CGA Number | Location | Thread Direction | Pressure Gauge Range, psi | Stage | For Tube OD | Location | Pressure Range, psi | Shape | Body | Seal | Each | |
NGO Female Inlet × Swagelok® Female Outlet | ||||||||||||
CGA 677 | Side | Left Hand | 0 to 7,500 | Single | 1/4" | Bottom | 300 to 4,500 | 90° Elbow | Brass | PCTFE | 0000000 | 000000000 |
NGO Male Inlet × Swagelok® Female Outlet | ||||||||||||
CGA 580 | Side | Right Hand | 0 to 4,000 | Single | 1/4" | Bottom | 200 to 3,000 | 90° Elbow | Brass | PCTFE | 0000000 | 000000 |
Panel-Mount Ultra-High-Pressure-Regulating Valves for Air and Inert Gas
- For Use With: Air, Nitrogen, Argon, Helium
- Temperature Range: -40° to 165° F
These valves are rated for inlet pressures up to 6,000 psi. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Threads below the adjustment knob and an included mounting bracket let you install these valves in instrument panels. They have two gauge ports. An internal strainer traps debris.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Panel Cutout Dia. | Specifications Met | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||||
Brass Body—Polyimide Seal | ||||||||||||
1/4 | Side | 6,000 | 1/4 | Side | 1/4 | Side | 2 1/8" | 2 1/4" | ASME B31.3 | 0000000 | 000000000 |
Panel-Mount High-Pressure-Regulating Valves for Air and Inert Gas
- For Use With: Air, Nitrogen, Argon, Helium
- Temperature Range: -40° to 165° F
Withstand inlet pressures up to 3,500 psi. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have threads below the adjustment knob and come with a panel-mount nut. All have two gauge ports. An internal strainer traps debris.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Panel Cutout Dia. | Specifications Met | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||||
Brass Body—316 Stainless Steel Diaphragm and PTFE Seal | ||||||||||||
1/4 | Side | 3,500 | 1/4 | Side | 1/4 | Side | 2" | 1 3/8" | ASME B31.3 | 0000000 | 0000000 |
Cleaned and Bagged Panel-Mount
Pressure-Regulating Valves for Air and Inert Gas
- For Use With: Air, Nitrogen, Argon, Helium
- Temperature Range: -40° to 165° F
Commonly used for oxygen service and other high-purity applications, these valves come cleaned and bagged to prevent contamination. All automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have threads below the adjustment knob and come with a panel-mount nut. They can also be surface mounted. All have two gauge ports. Body is 316 stainless steel for exceptional corrosion resistance. Valves are no-bleed style, so they keep process gases contained in the valve.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pressure Range, psi | Pipe Size | Connection | End-to-End Lg. | Panel Cutout Dia. | Each | |
NPT Female | |||||||||||
316 Stainless Steel Body—316 Stainless Steel Diaphragm and PTFE Seal | |||||||||||
1/4 | Side | 3,500 | 1/4 | Side | 0 to 25 | 1/4 | NPT Female | 5 3/8" | 1.37" | 0000000 | 0000000 |
1/4 | Side | 3,500 | 1/4 | Side | 0 to 100 | 1/4 | NPT Female | 5 3/8" | 1.37" | 0000000 | 000000 |
1/4 | Side | 3,500 | 1/4 | Side | 0 to 250 | 1/4 | NPT Female | 5 3/8" | 1.37" | 0000000 | 000000 |
1/4 | Side | 3,500 | 1/4 | Side | 0 to 500 | 1/4 | NPT Female | 5 3/8" | 1.37" | 0000000 | 000000 |
1/2 | Side | 500 | 1/2 | Side | 0 to 25 | 1/4 | NPT Female | 5 1/2" | 1.37" | 0000000 | 00000000 |
1/2 | Side | 500 | 1/2 | Side | 0 to 100 | 1/4 | NPT Female | 5 1/2" | 1.37" | 0000000 | 00000000 |
1/2 | Side | 500 | 1/2 | Side | 0 to 150 | 1/4 | NPT Female | 5 1/2" | 1.37" | 0000000 | 00000000 |
Clean Room Panel-Mount Pressure-Regulating Valves for Air and Inert Gas
- For Use With:
Relieving: Air, Nitrogen
Nonrelieving: Air, Argon, Carbon Dioxide, Nitrogen - Temperature Range: 32° to 140° F
Maintain contaminant-free standards in clean room environments. These valves come cleaned and bagged to Fed. Spec. Class 100 and ISO Class 5 clean room standards and have a 316 stainless steel body with a smooth finish to resist dust collection. They automatically reduce a high, variable inlet pressure to a lower, stable output pressure. Valves have threads below the adjustment knob and come with a panel-mount nut. Adjust the outlet pressure within the range.
Gauge ports let you attach a pressure gauge.
Nonrelieving valves do not exhaust excess downstream pressure.
For technical drawings and 3-D models, click on a part number.
Regulators | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Inlet | Outlet | Gauge Port | Mounting Brackets | |||||||||||
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pressure Range, psi | Pipe Size | Location | End-to-End Lg. | Panel Cutout Dia. | Environmental Rating | Each | Each | ||
NPT Female | ||||||||||||||
316 Stainless Steel Body—Fluoroelastomer Diaphragm and Seal | ||||||||||||||
1/8 | Side | 145 | 1/8 | Side | 7 to 102 | 1/4 | Side | 1.700" | 1.2" | Fed. Std. Class 100, ISO Class 5 | 0000000 | 0000000 | 0000000 | 00000 |
1/4 | Side | 145 | 1/4 | Side | 7 to 102 | 1/4 | Side | 1.700" | 1.2" | Fed. Std. Class 100, ISO Class 5 | 0000000 | 000000 | 0000000 | 0000 |
1/4 | Side | 145 | 1/4 | Side | 7 to 102 | 1/4 | Side | 2.280" | 1.44" | Fed. Std. Class 100, ISO Class 5 | 0000000 | 000000 | 0000000 | 00000 |
3/8 | Side | 145 | 3/8 | Side | 7 to 102 | 1/4 | Side | 2.280" | 1.44" | Fed. Std. Class 100, ISO Class 5 | 0000000 | 000000 | 0000000 | 00000 |
1/2 | Side | 145 | 1/2 | Side | 7 to 102 | 1/4 | Side | 2.280" | 1.44" | Fed. Std. Class 100, ISO Class 5 | 0000000 | 000000 | 0000000 | 00000 |
Pressure Gauge | 0000000 | Each | 000000 |
Tank-Mount Pressure-Regulating Valves for Cryogenic Cylinders
- For Use With: See Table
- Temperature Range: -20° to 120° F
Automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. These valves can remove gases from liquid cryogenic cylinders. They have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves come with a gauge to monitor outlet pressure. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.
Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.
Inlet | Outlet | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Use With | CGA Number | Location | Thread Direction | Stage | Thread Size | Location | Thread Direction | Pressure Range, psi | Pressure Adjustment Method | Each | |
UNF Male Outlet × NGO Male Inlet | |||||||||||
Brass Body—Stainless Steel Diaphragm and PTFE Seal | |||||||||||
Argon, Nitrogen | CGA 580 | Side | Right Hand | Single | 9/16"-18 | Bottom | Right Hand | 0 to 125 | T-Handle | 0000000 | 0000000 |
Argon, Nitrogen | CGA 580 | Side | Right Hand | Single | 9/16"-18 | Bottom | Right Hand | 0 to 350 | T-Handle | 0000000 | 000000 |
High-Accuracy Panel-Mount Vacuum-Regulating Valves for Air and Inert Gas
- For Use With: Air, Argon, Nitrogen
- Temperature Range: -40° to 165° F
For precise control over your vacuum level, these valves have ±0.1% accuracy. They throttle a high vacuum source to maintain a lower vacuum level in your system. Adjust the outlet vacuum level within the range. Valves have threads below the adjustment knob and come with a panel-mount nut. All have a gauge port. They are constant-bleed style, so they continually release small amounts of process gas to improve accuracy and repeatability.
For technical drawings and 3-D models, click on a part number.