Vents for Gasoline | McMaster-Carr

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1,000 psi to 1,999 psi

3,000 psi to 3,999 psi

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NPT

Relief Port Pipe Size

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Maximum Inlet Pressure

250 psi to 499 psi

1,000 psi to 1,999 psi

2,000 psi or greater

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

Yes

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

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REACH

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18 Products

Air-Release Valves for Oil and Fuel

Use this valve to eliminate air pockets in systems for oil, diesel fuel, gasoline, and kerosene. Valve has a vented relief port to exhaust discharge directly. Body is 304 stainless steel for excellent corrosion resistance.

	Inlet		Relief Port
	Pipe Size	Location	Pipe Size	Location	Max. Pressure, psi	Temp. Range, ° F	Overall Ht.		Each
NPT Female Inlet and Relief Pipe







				304 Stainless Steel Body—Vertical Mount

				3/4	Bottom	1/2	Top	400	-20 to 500	7"	0000000	0000000

Precision-Adjustment Pressure-Relief Valves for Fuel

A finely threaded adjustment screw lets you make precise set pressure adjustments. These valves are for use with diesel fuel, fuel oil, gasoline, and kerosene. They begin opening at the set pressure and fully open at about 10% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Adjust the set pressure within the range.

NPT Male Inlet and NPT Female Relief Port

Bronze Body—Valves with a bronze body are harder and more durable than valves with a brass body for a longer service life.

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







			Brass Body—Brass Seal

			1/2	Bottom	400	1/2	Side	External Adjustment Screw	90° Elbow	5 7/8"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 400	0000000	0000000


			3/4	Bottom	400	3/4	Side	External Adjustment Screw	90° Elbow	6 1/4"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 400	0000000	000000




					Bronze Body—Bronze Seal

					1	Bottom	400	1	Side	External Adjustment Screw	90° Elbow	7 1/2"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 400	0000000	000000


					1 1/4	Bottom	400	1 1/4	Side	External Adjustment Screw	90° Elbow	8 1/4"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 400	0000000	000000
					1 1/2	Bottom	400	1 1/2	Side	External Adjustment Screw	90° Elbow	9 1/2"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 400	0000000	000000
					2	Bottom	400	2	Side	External Adjustment Screw	90° Elbow	10 7/8"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 400	0000000	000000
					3	Bottom	300	3	Side	External Adjustment Screw	90° Elbow	13 3/16"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-60 to 450	Relief	0 to 14 , 15 to 25 , 26 to 40 , 41 to 75 , 76 to 110 , 111 to 130 , 131 to 150 , 151 to 200 , 201 to 300	0000000	00000000

Adjustable Pressure-Relief Valves for Fuel

To gradually relieve pressure in lines for diesel fuel, fuel oil, gasoline, and kerosene, these valves begin opening at the set pressure and fully open at about 10% over the set pressure. They begin closing as pressure drops and close when the system pressure is restored below the set pressure. Adjust the set pressure within the range.

NPT Female Inlet and Relief Port

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







			Brass Body—416 Stainless Steel Seal

			3/8	Bottom	1,000	3/8	Side	External Adjustment Screw	90° Elbow	5 3/8"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 300 to 500	0000000	0000000


			1/2	Bottom	1,000	1/2	Side	External Adjustment Screw	90° Elbow	6 3/16"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 300 to 500	0000000	000000
			3/4	Bottom	1,000	3/4	Side	External Adjustment Screw	90° Elbow	6 15/16"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 300 to 500	0000000	000000
			1	Bottom	1,000	1	Side	External Adjustment Screw	90° Elbow	8 1/4"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 300 to 500	0000000	000000
			1 1/4	Bottom	1,000	1 1/4	Side	External Adjustment Screw	90° Elbow	9 9/16"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 300 to 500	0000000	000000
			1 1/2	Bottom	1,000	1 1/2	Side	External Adjustment Screw	90° Elbow	11 1/16"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 300 to 500	0000000	000000
			2	Bottom	1,000	2	Side	External Adjustment Screw	90° Elbow	13"	Diesel Fuel, Fuel Oil, Gasoline, Kerosene	-20 to 400	Relief	3 to 10 , 7 to 35 , 30 to 100 , 60 to 175 , 150 to 350 , 250 to 600	0000000	00000000

Made-to-Order Pressure-Relief Valves

Design a valve specifically for your process media and set pressure. Choose from a valve for air, inert gas, water, hydraulic oil, fuel oil, gasoline, or diesel fuel and a set pressure. These valves begin opening at the set pressure and fully open at about 10% over the set pressure. They begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Body is 316 stainless steel for exceptional corrosion resistance.

NPT Female Inlet and Relief Port

For Use With—To Order: Please specify medium and a set pressure in 1 psi increments from the range listed in the table.

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







			316 Stainless Steel Body—Fluoroelastomer Seal

			1/2	Bottom	3,300	3/4	Side	150 to 2,699	90° Elbow	7 1/2"	-10 to 400	Relief	Gasoline	0000000	000000000

NPT Male Inlet and NPT Female Relief Port

For Use With—To Order: Please specify medium and a set pressure in 1 psi increments from the range listed in the table.

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







			316 Stainless Steel Body—Fluoroelastomer Seal

			3/4	Bottom	3,300	3/4	Side	150 to 2,269	90° Elbow	7 1/2"	-10 to 400	Relief	Gasoline	0000000	000000000


			1	Bottom	3,300	1	Side	150 to 2,421	90° Elbow	7 1/2"	-10 to 400	Relief	Gasoline	0000000	00000000