Nitrogen Vacuum Regulators

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Methyl Ethyl Ketone (MEK)

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12 Products

Vacuum-Regulating Valves for Air and Inert Gas

Throttle a high vacuum source to maintain a lower vacuum level in your system. Adjust the outlet vacuum level within the range. All valves have a gauge port.

	Inlet		Outlet
	Pipe Size	Location	Pipe Size	Location	Vacuum Range, in. Hg	Vacuum Adjustment Method	Vacuum Gauge Included	End-to-End Lg.	For Use With	Temp. Range, ° F		Each
NPT Female







				Brass Body—EPM Rubber Diaphragm and Buna-N Seal

				1/4	Bottom	1/4	Side	0 to 15	Screw	No	1 3/4"	Air, Carbon Dioxide, Inert Gas, Nitrogen	-20 to 180	5021K14	0000000


				1/4	Bottom	1/4	Side	10 to 30	Screw	No	1 3/4"	Air, Carbon Dioxide, Inert Gas, Nitrogen	-20 to 180	5021K24	000000

High-Accuracy Panel-Mount Vacuum-Regulating Valves for Air and Inert Gas

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.

	Inlet		Outlet
	Pipe Size	Location	Pipe Size	Location	Vacuum Range, in. Hg	Vacuum Adjustment Method	Vacuum Gauge Included	End-to-End Lg.	Bleed Type	Panel Cutout Dia.	For Use With	Temp. Range, ° F		Each
NPT Female







				Brass Body—Buna-N Diaphragm and Buna-N Seal

				1/8	Side	1/8	Side	0 to 25	Knob	No	2 1/8"	Constant Bleed	1 3/8"	Air, Argon, Nitrogen	-40 to 165	4640T71	0000000


				1/4	Side	1/4	Side	0 to 25	Knob	No	2 1/8"	Constant Bleed	1 3/8"	Air, Argon, Nitrogen	-40 to 165	4640T72	000000

Vacuum Breakers for Chemicals

A plastic body withstands pH neutralizing, cleaning, and plating solutions containing sodium hydroxide, methyl ethyl ketone, and other harsh chemicals. 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.

Diaphragm Check Valve

								Material			CPVC Body				PVC Body
	Inlet Pipe Size	Outlet Pipe SIze	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	End-to-End Lg.	Seal	DIaphragm	For Use With	Temp. Range, ° F	Color		Each	Temp. Range, ° F	Color		Each
NPT Female Inlet × NPT Female Outlet



		1/2	1/2	80	Not Rated	100 psi @ 75° F	1	4 5/16"	Fluoroelastomer	Fluoroelastomer	Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon	40 to 180	Light Gray	1868N13	0000000	40 to 140	Gray	1868N1	0000000


		3/4	3/4	80	Not Rated	100 psi @ 75° F	1	4 5/8"	Fluoroelastomer	Fluoroelastomer	Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon	40 to 180	Light Gray	1868N14	000000	40 to 140	Gray	1868N11	000000
		1	1	80	Not Rated	100 psi @ 75° F	1	5 1/8"	Fluoroelastomer	Fluoroelastomer	Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon	40 to 180	Light Gray	1868N15	000000	40 to 140	Gray	1868N12	000000

Spring-Loaded Piston Check Valve

								Material				CPVC Body				PVC Body
	Inlet Pipe Size	Outlet Pipe SIze	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	End-to-End Lg.	Seal	Piston	Spring	For Use With	Temp. Range, ° F	Color		Each	Temp. Range, ° F	Color		Each
NPT Female Inlet × NPT Female Outlet



		1 1/2	1 1/2	80	Not Rated	100 psi @ 75° F	1	7 15/16"	Fluoroelastomer	CPVC	Polymer	Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon	40 to 180	Light Gray	1868N18	0000000	—	—	———	0


		2	2	80	Not Rated	100 psi @ 75° F	1	8 1/2"	Fluoroelastomer	PVC	Polymer	Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon	—	—	———	0	40 to 140	Gray	1868N17	0000000