Brass Vacuum-Breaking Valves

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16 Products

Vacuum Breakers

Also known as vacuum-breaking valves, these valves have vents that open when pressure drops to relieve vacuum conditions and prevent backward suction from drawing liquid into upstream piping.

90° Elbow

Elbows are designed for intermittent flow. They discharge liquid directly and should not be installed in areas where spillage could cause damage.

								Brass Body
	Inlet Pipe Size	Outlet Pipe SIze	Max. Pressure @ Temp.	Temp. Range, ° F	Port-to-Port Lg.	Seal Material	For Use With		Each
NPT Female Inlet × NPT Female Outlet



		1/2	1/2	125 psi @ 70° F	35 to 180	1 5/16"	Silicone Rubber	Water	00000000	000000


		3/4	3/4	125 psi @ 70° F	35 to 180	1 1/2"	Silicone Rubber	Water	00000000	00000
		1	1	125 psi @ 70° F	35 to 180	1 5/8"	Silicone Rubber	Water	00000000	00000
		1 1/4	1 1/4	125 psi @ 70° F	35 to 180	2"	Silicone Rubber	Water	00000000	000000
		1 1/2	1 1/2	125 psi @ 70° F	35 to 180	2 1/4"	Silicone Rubber	Water	00000000	000000
		2	2	125 psi @ 70° F	35 to 180	2 3/4"	Silicone Rubber	Water	00000000	000000

Straight

Straights are often used with steam coils, heat exchangers, and space heaters.

								Brass Body
	Inlet Pipe Size	Outlet Pipe SIze	Max. Pressure @ Temp.	Temp. Range, ° F	End-to-End Lg.	Seal Material	For Use With		Each
NPT Male Inlet × NPT Female Outlet



		1/2	3/8	300 psi @ 70° F	-20 to 365	1 3/4"	EPM Rubber	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	0000000	0000000


		3/4	1/2	300 psi @ 70° F	-20 to 365	2 1/8"	EPM Rubber	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	0000000	000000
		1	3/4	300 psi @ 70° F	-20 to 365	2 3/8"	EPM Rubber	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	0000000	000000

Vacuum Breakers with Garden-Hose Fittings

Set Screw

Tamper-Resistant

Set Screw

Prevent dirty, contaminated water from backing up into your garden hose line—install these vacuum breakers between a faucet and a garden hose. Also known as vacuum-breaking valves, these valves have a built-in check valve that blocks backflow, so you can leave your hose in a utility sink full of dirty water without the water going back into the line.

When the check valve is closed, it has vents that open to release the water. This reduces pressure in the line and confirms the valve is working. Because these valves vent water, use them in environments where spilled water won’t cause a problem. This design adheres to ASSE Standard 1011 for valves with a vent.

Mount valves to faucet outlets with a set screw, and easily thread or unthread a hose while the valves stay in place.

Valves comply with Uniform Plumbing Code (UPC) and are CSA certified, so they're safe to use in sanitary plumbing systems because they prevent contamination from flowing backward into your line.

These valves are designed to be used intermittently. They've been tested under ASME A112.1.3, which assumes the valves will not be used for more than 12 hours at a time.

Tamper-Resistant Set Screw—Valves with tamper-resistant set screws have a head that breaks off after tightening to prevent valve removal after installation.

NSF/ANSI 372—Valves that meet NSF/ANSI Standard 372 are certified lead free.

Chrome-Plated Brass Body—Chrome-plated brass valves are more corrosion resistant than plain brass valves.

											Brass Body			Chrome-Plated Brass Body
	Inlet Hose Size	Outlet Hose Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	End-to-End Lg.	Food Industry Std.	Specs. Met	Certification	Seal Material	For Use With	Temp. Range, ° F		Each	Temp. Range, ° F		Each
GHT Female Inlet × GHT Male Outlet







				Set Screw

				3/4	3/4	Not Rated	125 psi @ 70° F	1 1/2"	—	ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC Compliant	CSA Certified IAPMO Listed	Rubber	Air, Water	30 to 180	00000000	000000	30 to 180	00000000	000000


				3/4	3/4	Not Rated	125 psi @ 70° F	1 1/2"	NSF/ANSI 372	ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC Compliant	CSA Certified IAPMO Listed	Rubber	Air, Water	30 to 180	00000000	00000	30 to 180	00000000	00000




						Tamper-Resistant Set Screw

						3/4	3/4	Not Rated	125 psi @ 70° F	1 1/2"	—	ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC Compliant	CSA Certified IAPMO Listed	Rubber	Air, Water	30 to 180	00000000	00000	30 to 180	00000000	00000


						3/4	3/4	Not Rated	125 psi @ 70° F	1 1/2"	NSF/ANSI 372	ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC Compliant	CSA Certified IAPMO Listed	Rubber	Air, Water	30 to 180	00000000	00000	—	———	0