Brass Air Tank Valves | McMaster-Carr

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Body Material

Material

Inlet Pipe Size

For Use With

Pipe Size

Set Pressure

Airflow Capacity

Maximum Inlet Pressure

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Thread Type

UN/UNF (SAE Straight)

Maximum Pressure

1,000 psi to 3,999 psi

Fitting Connection

Shape

Set Pressure Configuration

Valve Type

Actuation

Seal Material

Inlet Connection

Gender

Inlet Gender

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Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Valve Function

106 Products

ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas


Valve With Test Lever	Valve With Test Ring

To protect against damage in air lines, air receivers, compressor tanks, and other air-powered equipment, these valves spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. They have a vented relief port to exhaust discharge directly.

Nickel-Plated Brass Body—Valves with a nickel-plated brass body are more corrosion resistant than valves with a plain brass body.

Silicone Seal—Silicone seals provide better leak protection than brass seals.

	Inlet
	Pipe Size	Location	Relief Port Location	Temp. Range, ° F	Overall Ht.	Test Mechanism	Valve Type	Certification	For Use With	Choose a Set Pressure, psi		Each
NPT Male Inlet and Relief Vent







				Nickel-Plated Brass Body—Silicone Seal

				1/8	Bottom	Side	-15 to 250	2"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	50, 75, 100, 125, 150, 175, 200, 225, 250	5784T11	000000


				1/4	Bottom	Side	-15 to 250	2"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	50, 75, 100, 125, 150, 175, 200, 225, 250	5784T12	00000
				3/8	Bottom	Side	-15 to 250	2"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	50, 75, 100, 125, 150, 175, 200, 225, 250	5784T13	00000




						Brass Body—Brass Seal

						1/8	Bottom	Side	-40 to 400	2 1/8"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	50, 60, 70, 75, 80, 90, 100, 110, 115, 120, 125, 130, 140, 150, 175, 200, 225, 250	9889K15	00000


						1/4	Bottom	Side	-40 to 400	3 1/8"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K19	00000
						1/4	Bottom	Side	-40 to 400	3 3/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K25	00000
						1/4	Bottom	Side	-20 to 300	3 3/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	60, 100, 250, 300, 400, 500, 750, 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000	5825T21	000000
						1/4	Bottom	Top	-40 to 400	3 1/8"	Lever	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	15, 20, 25, 30, 40, 50, 60, 70, 80, 90, 100, 110, 125, 130, 140, 150, 175, 200	4701K11	00000
						3/8	Bottom	Side	-40 to 400	3 1/8"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K29	00000
						3/8	Bottom	Side	-40 to 400	3 9/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K35	00000
						3/8	Bottom	Top	-40 to 400	3 1/8"	Lever	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	15, 20, 25, 30, 40, 50, 60, 70, 80, 90, 100, 110, 125, 130, 140, 150, 175, 200	4701K21	00000
						1/2	Bottom	Side	-40 to 400	3 3/4"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K39	00000
						1/2	Bottom	Side	-40 to 400	3 13/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K45	00000
						1/2	Bottom	Top	-40 to 400	3 1/8"	Lever	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	15, 20, 25, 30, 40, 50, 60, 70, 80, 90, 100, 110, 125, 130, 140, 150, 175, 200	4701K31	00000


						3/4	Bottom	Side	-40 to 400	5 7/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K49	000000
						1	Bottom	Side	-40 to 400	5 3/4"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	9889K59	000000




								Brass Body—Silicone Seal

								1/8	Bottom	Side	-15 to 250	2"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 125, 130, 140, 150, 175, 200, 225, 250, 275, 300	48435K71	0000


								1/4	Bottom	Side	-15 to 250	2"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	48435K72	0000
								3/8	Bottom	Side	-15 to 250	2"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 60, 65, 70, 75, 80, 90, 100, 105, 110, 120, 125, 130, 140, 150, 175, 200, 225, 250, 275, 300	48435K81	0000
								1/2	Bottom	Side	-15 to 250	3 3/8"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	50, 55, 60, 65, 70, 75, 80, 85, 90, 100, 110, 115, 120, 125, 135, 140, 145, 150, 175, 200, 225, 250	48435K82	00000
								1/2	Bottom	Side	-15 to 250	3 13/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 45, 50, 75, 80, 90, 100, 120, 125, 130, 135, 145, 150, 175, 200, 225, 250, 275, 300	48435K83	00000
								3/4	Bottom	Side	-15 to 250	3 13/16"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 50, 60, 65, 70, 75, 80, 90, 100, 110, 120, 125, 130, 135, 140, 150, 175, 200, 225, 250, 275, 300	48435K91	00000
								1	Bottom	Side	-15 to 250	4 7/8"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 35, 40, 50, 60, 70, 75, 80, 90, 100, 110, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	48435K92	00000
								1 1/4	Bottom	Side	-15 to 250	4 7/8"	Ring	Pop Safety	ASME BPVC.VIII	Air, Inert Gas	25, 30, 50, 60, 70, 75, 80, 90, 100, 110, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	48435K93	000000

Air Fill Valves

Also known as Schrader valves, these valves rapidly fill or empty compressed air tanks or pneumatic tires.

NPT Male Threaded Pipe Inlet × Schrader Male Threaded Hose Outlet

Brass Body—Brass valves are softer than other metals, so they’re easier to thread together. They have good corrosion resistance.

Nickel-Plated Brass Body—Nickel-plated brass valves have better corrosion resistance than unplated brass valves.

		Outlet
	Inlet Pipe Size	Thread Size	Connection Lg.	Max. Pressure, psi	Temp. Range, ° F	Overall Lg.	Hex Size	Includes		Each
Brass Body



		1/8	0.305"-32	3/8"	200	-40 to 225	15/16"	7/16"	Thread Cap	8063K33	00000


		1/8	0.305"-32	11/16"	200	-40 to 225	1 5/16"	7/16"	Thread Cap	8063K31	0000
		1/8	0.305"-32	7/8"	200	-40 to 225	1 5/16"	7/16"	Thread Cap	8063K41	0000
		1/4	0.305"-32	9/16"	200	-40 to 225	1 5/16"	9/16"	Thread Cap	8063K37	0000
		1/4	0.305"-32	9/16"	4,000	-40 to 225	1 5/16"	9/16"	Thread Cap	8063K18	0000


		Nickel-Plated Brass Body



				1/8	0.305"-32	3/8"	200	-40 to 225	15/16"	7/16"	Thread Cap	8063K12	0000


				1/8	0.305"-32	3/8"	4,000	-40 to 225	15/16"	7/16"	Thread Cap	8063K21	0000
				1/8	0.305"-32	7/16"	200	-40 to 225	7/8"	7/16"	Thread Cap	8063K11	0000
				1/8	0.305"-32	7/16"	200	-40 to 225	1 5/16"	7/16"	Thread Cap	6281T13	0000
				1/8	0.305"-32	7/16"	4,000	-40 to 225	7/8"	7/16"	Thread Cap	8063K19	0000
				1/8	0.305"-32	7/16"	4,000	-40 to 225	1 5/16"	7/16"	Thread Cap	8063K22	0000
				1/8	0.305"-32	11/16"	200	-40 to 225	1 5/16"	7/16"	Thread Cap	8063K13	0000
				1/8	0.305"-32	11/16"	4,000	-40 to 225	1 5/16"	7/16"	Thread Cap	8063K23	0000
				1/4	0.305"-32	9/16"	200	-40 to 225	1 5/16"	9/16"	Thread Cap	8063K14	0000

NPT Male Threaded Pipe Inlet × UN/UNF (SAE Straight) Male Threaded Hose Outlet

Brass Body—Brass valves are softer than other metals, so they’re easier to thread together. They have good corrosion resistance.

		Outlet
	Inlet Pipe Size	Thread Size	Connection Lg.	Max. Pressure, psi	Temp. Range, ° F	Overall Lg.	Hex Size	Includes		Each
Brass Body



		1/8	7/16"-20	1/2"	200	-40 to 225	1 1/16"	7/16"	Thread Cap	8063K16	00000

Metric Male Threaded Pipe Inlet × Schrader Male Threaded Hose Outlet

Brass Body—Brass valves are softer than other metals, so they’re easier to thread together. They have good corrosion resistance.

		Outlet
	Thread Size	Thread Size	Connection Lg.	Max. Pressure, psi	Temp. Range, ° F	Overall Lg.	Hex Size, mm	Includes		Each
Brass Body



		M10 × 1 mm	0.305"-32	7/16"	200	-40 to 225	1"	14	O-Ring, Thread Cap	8063K25	00000


		M10 × 1 mm	0.305"-32	7/16"	4,000	-40 to 225	1"	14	O-Ring, Thread Cap	8063K26	00000

Male Barbed Tube Inlet × Schrader Male Threaded Hose Outlet

Brass Body—Brass valves are softer than other metals, so they’re easier to thread together. They have good corrosion resistance.

		Outlet
	For Inlet Tube ID	Thread Size	Connection Lg.	Max. Pressure, psi	Temp. Range, ° F	Overall Lg.	Hex Size	Includes		Each
Brass Body



		1/4"	0.305"-32	3/4"	200	-40 to 225	1 11/16"	1/2"	Thread Cap	8063K39	000000

Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas

Unlike valves that release discharge directly, these have a threaded relief port to direct discharge away from your work environment. They spring fully open at the set pressure and remain fully open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. Body is bronze for durability and a long service life.

1/2 NPT Male Bottom Inlet × 3/4 NPT Female Side Pipe Relief Port


Valve	Valve With Test Lever	Valve With Swivel Test Lever

Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.

Swivel—Swivel test levers rotate 360° around the valve for use in areas with limited clearance.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Test Lever Type	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-60 to 406	Lever	—	6 1/2"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	4700K31	0000000
Brass	Bronze	-15 to 406	—	—	6"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K71	000000
Brass	Bronze	-15 to 406	Lever	—	6 7/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K31	000000
Brass	Bronze	-15 to 406	Lever	Swivel	7 5/16"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4755K31	000000
Fluoroelastomer	Bronze	-15 to 406	Lever	—	6 1/2"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	6017T11	000000
316 Stainless Steel	Bronze	-60 to 422	Lever	—	7 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	300, 325, 350, 375, 400, 425, 450, 475, 500, 525, 550, 575, 600, 625, 650, 675, 700, 725, 750, 775, 800, 825, 850, 875, 900	6338T11	000000

3/4 NPT Male Bottom Inlet × 3/4 NPT Female Side Pipe Relief Port


Valve With Test Lever	Valve With Swivel Test Lever

Swivel—Swivel test levers rotate 360° around the valve for use in areas with limited clearance.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Test Lever Type	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-15 to 406	Lever	Swivel	7 5/16"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4755K32	0000000
316 Stainless Steel	Bronze	-60 to 422	Lever	—	7 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	300, 325, 350, 375, 400, 425, 450, 475, 500, 525, 550, 575, 600, 625, 650, 675, 700, 725, 750, 775, 800, 825, 850, 875, 900	6338T12	000000

3/4 NPT Male Bottom Inlet × 1 NPT Female Side Pipe Relief Port


Valve	Valve With Test Lever

Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-60 to 406	Lever	7 1/2"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	4700K72	0000000
Brass	Bronze	-15 to 406	—	6 1/4"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K72	000000
Brass	Bronze	-15 to 406	Lever	7 1/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K32	000000
Fluoroelastomer	Bronze	-15 to 406	Lever	7 1/2"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	6017T12	000000

1 NPT Male Bottom Inlet × 1 NPT Female Side Pipe Relief Port

Valve With

Swivel Test

Lever

Swivel—Swivel test levers rotate 360° around the valve for use in areas with limited clearance.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Test Lever Type	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-15 to 406	Lever	Swivel	7 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4755K33	0000000

1 NPT Male Bottom Inlet × 1 1/4 NPT Female Side Pipe Relief Port


Valve	Valve With Test Lever

Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-60 to 406	Lever	8 1/2"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	4700K83	0000000
Brass	Bronze	-15 to 406	—	7 3/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K73	000000
Brass	Bronze	-15 to 406	Lever	7 7/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K33	000000
Fluoroelastomer	Bronze	-15 to 406	Lever	8 1/2"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	6017T13	000000
316 Stainless Steel	Bronze	-60 to 422	Lever	9"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	300, 325, 350, 375, 400, 425, 450, 475, 500, 525, 550, 575, 600, 625, 650, 675, 700, 725, 750, 775, 800, 825, 850, 875, 900	6338T13	000000

1 1/4 NPT Male Bottom Inlet × 1 1/4 NPT Female Side Pipe Relief Port

Valve With

Swivel Test

Lever

Swivel—Swivel test levers rotate 360° around the valve for use in areas with limited clearance.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Test Lever Type	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-15 to 406	Lever	Swivel	8 3/4"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4755K34	0000000

1 1/4 NPT Male Bottom Inlet × 1 1/2 NPT Female Side Pipe Relief Port


Valve	Valve With Test Lever

Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-60 to 406	Lever	9 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	4700K11	0000000
Brass	Bronze	-15 to 406	—	8 5/16"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K74	000000
Brass	Bronze	-15 to 406	Lever	8 3/4"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K34	000000
Fluoroelastomer	Bronze	-15 to 406	Lever	9 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	6017T14	000000

1 1/2 NPT Male Bottom Inlet × 2 NPT Female Side Pipe Relief Port


Valve	Valve With Test Lever

Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-60 to 406	Lever	10 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	4700K15	0000000
Brass	Bronze	-15 to 406	—	9 7/16"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K75	000000
Brass	Bronze	-15 to 406	Lever	9 3/4"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K35	000000
Fluoroelastomer	Bronze	-15 to 406	Lever	10 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	6017T15	000000

2 NPT Male Bottom Inlet × 2 NPT Female Side Pipe Relief Port

Valve With

Swivel Test

Lever

Swivel—Swivel test levers rotate 360° around the valve for use in areas with limited clearance.

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Test Lever Type	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-15 to 406	Lever	Swivel	11"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4755K36	0000000

2 NPT Male Bottom Inlet × 2 1/2 NPT Female Side Pipe Relief Port


Valve	Valve With Test Lever

Material
Seal	Body	Temp. Range, ° F	Test Mechanism	Overall Ht.	Valve Type	For Use With	Certification	Choose a Set Pressure, psi		Each
Brass	Bronze	-60 to 406	Lever	13 5/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250, 275, 300	4700K19	0000000
Brass	Bronze	-15 to 406	—	10 7/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K76	000000
Brass	Bronze	-15 to 406	Lever	11 1/8"	Pop Safety	Air, Inert Gas	ASME BPVC.VIII	15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 175, 200, 225, 250	4673K36	000000

Fast-Acting Pressure-Relief Valves for Air and Inert Gas

These valves spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. They have a vented relief port to exhaust discharge directly.

NPT Male Inlet and Relief Vent


Valve With Test Lever	Valve	Valve With Test Ring

Inlet
Pipe Size	Location	Max. Pressure, psi	Relief Port Location	Shape	Overall Ht.	For Use With	Temp. Range, ° F	Test Mechanism	Valve Type	Choose a Set Pressure, psi		Each







			Brass Body—Brass Seal

			1/8	Bottom	100	Side	90° Elbow	1 3/4"	Air, Inert Gas	-30 to 400	—	Pop Safety	5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100	4772K2	000000


			1/4	Bottom	200	Top	Straight	3 1/8"	Air, Inert Gas	-30 to 400	Lever	Pop Safety	5, 10	4701K56	00000
			1/4	Bottom	300	Side	90° Elbow	2 1/2"	Air, Inert Gas	-30 to 400	—	Pop Safety	5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100	4772K4	00000
			1/4	Bottom	300	Side	90° Elbow	3 1/8"	Air, Inert Gas	-30 to 400	Ring	Pop Safety	10, 15, 20	9024K11	00000
			3/8	Bottom	200	Top	Straight	3 1/8"	Air, Inert Gas	-30 to 400	Lever	Pop Safety	5, 10	4701K57	00000
			3/8	Bottom	300	Side	90° Elbow	2 1/2"	Air, Inert Gas	-30 to 400	—	Pop Safety	5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100	4772K6	00000
			3/8	Bottom	300	Side	90° Elbow	3 1/8"	Air, Inert Gas	-30 to 400	Ring	Pop Safety	10, 15, 20	9024K12	00000
			1/2	Bottom	200	Top	Straight	3 1/8"	Air, Inert Gas	-30 to 400	Lever	Pop Safety	5, 10	4701K58	00000
			1/2	Bottom	300	Side	90° Elbow	2 5/8"	Air, Inert Gas	-30 to 400	—	Pop Safety	5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100	4772K8	00000
			1/2	Bottom	300	Side	90° Elbow	3 3/4"	Air, Inert Gas	-30 to 400	Ring	Pop Safety	10, 15, 20	9024K13	00000
			3/4	Bottom	300	Side	90° Elbow	5 7/16"	Air, Inert Gas	-30 to 400	Ring	Pop Safety	10, 15, 20	9024K14	000000


			1	Bottom	300	Side	90° Elbow	5 3/4"	Air, Inert Gas	-30 to 400	Ring	Pop Safety	10, 15, 20	9024K15	000000

Adjustable Fast-Acting Pressure-Relief Valves for Air and Inert Gas

Change set pressure to suit your application—this valve includes four interchangeable color-coded springs with different set pressure ranges. Remove the adjustment screw to change springs; turn the screw to alter the set pressure within the range. The valve springs fully open at the set pressure and remains open until the system pressure is restored below the set pressure. It has a vented relief port to exhaust discharge directly.

NPT Male Inlet and Relief Vent

Image of Product. Front orientation. Pressure-Relief Valves. Adjustable Fast-Acting Pressure-Relief Valves for Air and Inert Gas.

Inlet				Set Pressure
Pipe Size	Location	Max. Pressure, psi	Relief Port Location	Range, psi	Adjustment Method	Shape	Overall Ht.	For Use With	Temp. Range, ° F	Valve Type	Includes		Each







			Brass Body—Silicone Seal

			1/4	Bottom	200	Side	25 to 200	External Adjustment Screw	90° Elbow	1 5/8"	Air, Inert Gas	-15 to 250	Pop Safety	Yellow Spring (25-50 psi), Red Spring (51-100 psi), Silver Spring (101-150 psi), Blue Spring (151-200 psi)	50265K23	00000

Air Compressor Air Flow Check Valves

Prevent air from escaping an air storage tank when the air compressor is not running. These valves install on the inlet of a tank. They open to allow airflow into the tank and close when flow stops or reverses direction. They have a _1/8 NPT tapped unloader port with removable plug for connecting to a pressure switch.

NPT Female Inlet × NPT Male Outlet

Image of Product. Front orientation. Contains Annotated. Air Flow Check Valves. Air Compressor Air Flow Check Valves, NPT Female Inlet × NPT Male Outlet.

Flow Coefficient (Cv)—Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.

	Outlet Pipe Size	Flow Coefficient (Cv)	Min. Flow Rate	Max. Flow Rate, scfm	Max. Pressure, psi	Min. Opening Pressure, psi	Temp. Range, ° F	Overall Lg.	Hex Size		Each
Brass Body



	3/8	1/2	Not Rated	Not Rated	20	450	3	-15 to 400	2 11/16"	7/8"	2745N11	000000


	1/2	1/2	Not Rated	Not Rated	20	450	3	-15 to 400	2 15/16"	1"	2745N12	00000
	3/4	3/4	Not Rated	Not Rated	30	450	3	-15 to 400	2 3/4"	1 3/16"	2745N13	00000
	3/4	1	Not Rated	Not Rated	60	450	3	-15 to 400	3 11/16"	1 5/16"	2745N14	00000
	1	1	Not Rated	Not Rated	60	450	3	-15 to 400	4 1/8"	1 1/2"	2745N15	00000
	1 1/4	1 1/4	Not Rated	Not Rated	130	450	3	-15 to 400	4 7/16"	1 7/8"	2745N16	00000

Compression Inlet × NPT Male Outlet

Image of Product. Front orientation. Contains Annotated. Air Flow Check Valves. Air Compressor Air Flow Check Valves, Compression Inlet × NPT Male Outlet.

Flow Coefficient (Cv)—Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.

	Outlet Pipe Size	Flow Coefficient (Cv)	Min. Flow Rate	Max. Flow Rate, scfm	Max. Pressure, psi	Min. Opening Pressure, psi	Temp. Range, ° F	Overall Lg.	Hex Size		Each
Brass Body



	1/2"	1/2	Not Rated	Not Rated	20	450	3	-15 to 400	2 7/8"	7/8"	2745N17	000000


	3/4"	3/4	Not Rated	Not Rated	30	450	3	-15 to 400	3 9/16"	1 1/8"	2745N18	00000

Air Chucks for High-Pressure Fill Valves

Fill tanks and recharge struts—these air chucks join hose to high-pressure fill valves with Schrader threads.

Schrader Female Threaded Hose × NPT Female Threaded Pipe

70° Elbow

70° Elbow—70° elbow chucks are angled to access hard-to-reach valves.

	Inlet					Temp. Range, ° F
	Thread Size	Pipe Size	Material	Outlet Material	Max. Pressure, psi	Min.	Max.		Each
70° Elbow



		0.305"-32	1/8	Brass	Brass	3,000	-20	250	3534N4	000000

Schrader Female Threaded Hose × NPT Male Threaded Pipe

90° Elbow With

Shutoff

With Shutoff—Chucks with a shut-off valve let you control the flow of air by hand. When used with Schrader valves that have a core, the core depressor pin in these chucks press valves open to let air flow in.

	Inlet					Temp. Range, ° F
	Thread Size	Pipe Size	Material	Outlet Material	Max. Pressure, psi	Min.	Max.	Features		Each
90° Elbow With Shutoff



		0.305"-32	1/8	Brass	Brass	3,000	-40	160	Core Depressor Pin	3534N1	000000

Schrader Female Threaded Hose × UN/UNF (JIC) Male 37° Flared Tube


70° Elbow	90° Elbow With Shutoff

70° Elbow—70° elbow chucks are angled to access hard-to-reach valves.

SAE AS4395—These chucks meet SAE AS4395, an automotive industry standard for flared fitting dimensions.

	Inlet		Outlet				Temp. Range, ° F
	Thread Size	Material	Thread Size	Material	For Tube OD	Max. Pressure, psi	Min.	Max.	Features	Specs. Met		Each
70° Elbow



		0.305"-32	Brass	7/16"-20	Brass	1/4"	5,000	Not Rated	Not Rated	—	—	3534N6	000000


		90° Elbow With Shutoff



				0.305"-32	Brass	3/8"-24	Brass	3/16"	3,000	-40	160	Core Depressor Pin	SAE AS4395	3534N2	00000


				0.485"-26	Brass	3/8"-24	Brass	3/16"	3,000	-40	160	Core Depressor Pin	—	3534N5	00000

Large-Diameter Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas

These valves meet ASME Code Section VIII for use with air and inert gas pressure vessels. Commonly used with high-volume blowers, compressors, and air-powered conveyors, they quickly relieve a large amount of air in systems with a pipe size of 2 or greater. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Attach a drain line to the threaded relief port for remote discharge. Valves have a cast iron body to absorb vibration for reduced noise and wear in your pipeline.

NPT Male Inlet and NPT Female Relief Port

Image of Product. Front orientation. Pressure-Relief Valves. Large-Diameter Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas.

Inlet			Relief
Pipe Size	Location	Max. Pressure, psi	Port Pipe Size	Port Location	Shape	Overall Ht.	For Use With	Temp. Range, ° F	Test Mechanism	Valve Type	Certification	Choose a Set Pressure, psi		Each







			Cast Iron Body—Bronze Seal

			2	Bottom	60	2	Side	90° Elbow	7"	Air, Inert Gas	-20 to 406	T-Handle	Pop Safety	ASME BPVC.VIII	16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60	8175K32	0000000


			2 1/2	Bottom	60	2 1/2	Side	90° Elbow	8"	Air, Inert Gas	-20 to 406	T-Handle	Pop Safety	ASME BPVC.VIII	16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60	8175K34	000000
			3	Bottom	60	3	Side	90° Elbow	9"	Air, Inert Gas	-20 to 406	T-Handle	Pop Safety	ASME BPVC.VIII	16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60	8175K36	00000000

Air Flow Check Valves

Valves open to allow flow in one direction and close when flow stops or reverses.

UNF Female Inlet × UNF Female Outlet

Flow Coefficient (Cv)—Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.

									Overall
	Inlet Thread Size	Outlet Thread Size	Flow Coefficient (Cv)	Min. Flow Rate	Max. Flow Rate, scfm	Max. Pressure, psi	Min. Opening Pressure, psi	Temp. Range, ° F	Lg.	Dia.		Each
Brass Body



		10-32	10-32	0.09	Not Rated	9.5	125	0.1	-20 to 160	13/16"	5/16"	1096T11	00000

Large-Diameter Remote-Discharge Fast-Acting Pressure-Relief Valves for Air and Inert Gas

Commonly used with high-volume blowers, compressors, and air-powered conveyors, these valves quickly relieve a large amount of air in systems with a pipe size of 2 or greater. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Attach a drain line to the threaded relief port for remote discharge. Valves have a cast iron body to absorb vibration for reduced noise and wear in your pipeline.

NPT Male Inlet and NPT Female Relief Port

Image of Product. Front orientation. Pressure-Relief Valves. Large-Diameter Remote-Discharge Fast-Acting Pressure-Relief Valves for Air and Inert Gas.

Inlet			Relief
Pipe Size	Location	Max. Pressure, psi	Port Pipe Size	Port Location	Shape	Overall Ht.	For Use With	Temp. Range, ° F	Test Mechanism	Valve Type	Choose a Set Pressure, psi		Each







			Cast Iron Body—Bronze Seal

			2	Bottom	60	2	Side	90° Elbow	7"	Air, Inert Gas	-20 to 406	T-Handle	Pop Safety	2, 4, 6, 8, 10, 12, 14	8175K31	0000000


			2 1/2	Bottom	60	2 1/2	Side	90° Elbow	8"	Air, Inert Gas	-20 to 406	T-Handle	Pop Safety	2, 4, 6, 8, 10, 12, 14	8175K33	000000
			3	Bottom	60	3	Side	90° Elbow	9"	Air, Inert Gas	-20 to 406	T-Handle	Pop Safety	2, 4, 6, 8, 10, 12, 14	8175K35	00000000