Regulators with 3 Pipe Size Inlet

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Relief Port Pipe Size

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Relief Port

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How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

About Pressure-Relief Valves

For Use With: Diesel Fuel, Fuel Oil, Gasoline, Kerosene
Temperature Range: -60° to 450° F

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.

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

For technical drawings and 3-D models, click on a part number.

Inlet			Relief Port
Pipe Size	Location	Maximum Pressure, psi	Pipe Size	Location	Set Pressure Adjustment Method	Overall Ht.	Choose a Set Pressure Range, psi		Each
NPT Male Inlet and NPT Female Relief Port
Bronze Body and Seal
3	Bottom	300	3	Side	External Adjustment Screw	13 3/16"	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	000000000

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

For Use With: Air, Inert Gas
Temperature Range: -20° to 406° F

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.

For technical drawings and 3-D models, click on a part number.

Inlet			Relief Port
Pipe Size	Location	Maximum Pressure, psi	Pipe Size	Location	Temperature Range, ° F	Overall Ht.	Test Mechanism	Valve Type	Choose a Set Pressure, psi		Each
NPT Male Inlet and NPT Female Relief Port
Cast Iron Body—Bronze Seal
3	Bottom	60	3	Side	-20° to 406°	9"	T-Handle	Pop Safety	2, 4, 6, 8, 10, 12, 14	0000000	0000000

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

For Use With: Air, Inert Gas
Specifications Met: ASME BPVC.VIII
Temperature Range: -20° to 406° F

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.

For technical drawings and 3-D models, click on a part number.

Inlet			Relief Port
Pipe Size	Location	Maximum Pressure, psi	Pipe Size	Location	Overall Ht.	Test Mechanism	Valve Type	Choose a Set Pressure, psi		Each
NPT Male Inlet and NPT Female Relief Port
Cast Iron Body—Bronze Seal
3	Bottom	60	3	Side	9"	T-Handle	Pop Safety	16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60	0000000	0000000

ASME-Code Fast-Acting Pressure-Relief Valves for Low-Pressure Steam

For Use With: Steam
Specifications Met: ASME BPVC.IV
Max. Temperature: 250° F

For use with low-pressure steam-heating boilers requiring pressure relief at 15 psi, these valves meet ASME Code Section IV. All spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Body is bronze for durability and a long service life.

Threaded relief ports can be attached to a drain line for remote discharge.

For technical drawings and 3-D models, click on a part number.

Elbow

Inlet				Relief Port
Pipe Size	Connection	Location	Maximum Pressure, psi	Pipe Size	Connection	Location	Steam Flow Capacity, lbs./hr.	Set Pressure, psi	Overall Ht.	Test Mechanism	Valve Type		Each
Bronze Body—PTFE-Coated EPDM Seal
3	NPT Male	Bottom	15	3	NPT Female	Side	4,100	15	9 1/16"	Lever	Pop Safety	000000	0000000

Bronze Float Valves

Elbow Valve Body

Straight Valve Body

With a durable bronze body, these float valves can be used with water and hydraulic fluid. Use them to control liquid levels in processing tanks and cooling towers. They have a 360° rotating joint that allows you to alter the angle between the valve body and rod to fit in your tank.

For technical drawings and 3-D models, click on a part number.

Inlet			Outlet						Float Rod					Neoprene Rubber Seal
Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Flow Rate	Max. Pressure, psi	Float Dia.	Lg.	Pipe Size	Thread Type	For Container Type	Float Material	Temp. Range, °F		Each
For Use With Hydraulic Fluid and Water
Elbow Valve Body
3	NPT	Female	3	NPT	Female	400 gpm @ 50 psi	75	9"	24"	3/8	NPT	Open Tank	Copper	-50° to 180°	00000000	000000000
Straight Valve Body
3	NPT	Female	3	NPT	Female	400 gpm @ 50 psi	75	9"	24"	3/8	NPT	Open Tank	Copper	-50° to 180°	0000000	00000000

Water Hammer Eliminators

Prevent knocking noises from water pipes with these eliminators. Install them close to the shut-off valve at any angle.

Eliminators with a pressure gauge let you read pressure changes right away on the dial.

For technical drawings and 3-D models, click on a part number.

Copper—NPT Inlet

Eliminator with
Pressure
Gauge

Inlet
Pipe Size	Gender	Max. Pressure, psi	Dia.	Ht.	Max. Temp., °F	Features		Each
3	Male	250	4 1/4"	23 1/4"	250°	Pressure Gauge	00000000	000000000