PVC Air-Actuated Valves | McMaster-Carr

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About Actuated On/Off Valves

Choose the right automatic on/off valve based on power source, pressure, and flow rate.

High-Flow Air-Driven On/Off Valves for Chemicals

Assembled View

Exploded View

With a PVC body and a fluoroelastomer seal that can withstand aggressive and corrosive solutions, these valves are often used in chemical-processing applications. Their ball-valve design provides higher flow rates than other air-driven valves. They operate on compressed air to automatically start and stop flow faster than motor-driven valves. You must control the air to the actuator using either the included electric pilot valve or a manual on/off valve (not included). These valves don’t require a minimum pressure drop between the inlet and outlet for operation. They are full port, so they do not restrict flow.

All have union fittings on each end that separate into multiple pieces for easy installation and removal from your pipeline. Valves come with both threaded NPT fittings and unthreaded socket-connect female fittings.

The actuator is secured to the valve body with a bracket for easy disassembly, maintenance, and repair. A visual flow indicator on the top of the actuator shows whether the valve is open or closed. All valves meet NSF/ANSI 61 and NSF/ANSI 372 Standards.

Single Acting—Single-acting actuators only require air pressure to open the valve; they automatically spring closed when the air turns off. These valves are fail closed unless actuated.

Double Acting—Double-acting actuators require air pressure to open and close the valve. Once actuated, these valves remain actuated until air pressure is applied, so they do not have a valve starting position.

Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

										Overall		Air
	Pipe Size	Gender	Thread Type	Fitting Connection	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Valve Type	Temp. Range, ° F	Valve Lg.	Lg.	Ht.	Connection	Min. Pressure, psi	Max. Pressure, psi	Fasteners Included	Food Industry Std.		Each
Dark Gray PVC Body with Wire Leads







				Single Acting: Air-to-Open, Spring Return (Fail Closed)—120V AC

				1 1/2	Female	NPT	Threaded	90	250 psi @ 70° F	Ball, Zero Pressure Drop	40 to 140	7 3/8"	10 3/16"	8 1/2"	1/8 NPT Female	80	120	No	NSF/ANSI 61, NSF/ANSI 372	5005K55	000000000


				2	Female	NPT	Threaded	150	250 psi @ 70° F	Ball, Zero Pressure Drop	40 to 140	8"	10 3/16"	9 1/2"	1/8 NPT Female	80	120	No	NSF/ANSI 61, NSF/ANSI 372	5005K56	00000000




						Single Acting: Air-to-Open, Spring Return—120V AC

						1	Female	NPT	Threaded	29	250 psi @ 70° F	Ball, Zero Pressure Drop	40 to 140	5 3/8"	9 3/16"	7 1/4"	1/8 NPT Female	80	120	No	NSF/ANSI 61, NSF/ANSI 372	5005K54	00000000




								Double Acting: Air-to-Open, Air-to-Close—120V AC

								1	Female	NPT	Threaded	29	250 psi @ 70° F	Ball, Zero Pressure Drop	40 to 140	5 5/16"	6 1/4"	7"	1/8 NPT Female	80	120	No	NSF/ANSI 61, NSF/ANSI 372	5005K51	000000


								1 1/2	Female	NPT	Threaded	90	250 psi @ 70° F	Ball, Zero Pressure Drop	40 to 140	7 3/8"	7 3/8"	8 1/8"	1/8 NPT Female	80	120	No	NSF/ANSI 61, NSF/ANSI 372	5005K52	00000000
								2	Female	NPT	Threaded	150	250 psi @ 70° F	Ball, Zero Pressure Drop	40 to 140	8"	8"	9"	1/8 NPT Female	80	120	No	NSF/ANSI 61, NSF/ANSI 372	5005K53	00000000

Versa-Mount Air-Driven On/Off Valves for Chemicals

With a chemical-resistant fluoroelastomer seal and no metal parts to corrode, these valves are often used in chemical-processing and water-treatment applications. The lightweight actuator and compact body are designed for installation in any mounting orientation. All valves operate on compressed air to automatically start and stop flow. You must control the air to the actuator using either an electric pilot valve (not included) or a manual on/off valve (not included). These valves don’t require a minimum pressure drop between the inlet and outlet for operation.

All have a single-acting actuator that only requires air pressure to open the valve; they automatically spring closed when the air turns off. The actuator is directly mounted to the valve body to minimize movement and reduce wear. These valves are fail closed unless actuated.

										Overall		Air
	Pipe Size	Gender	Thread Type	Fitting Connection	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Valve Type	Temp. Range, ° F	Valve Dia.	Lg.	Ht.	Connection	Min. Pressure, psi	Max. Pressure, psi	No. of Mounting Holes	Mounting Hole Thread Size	Fasteners Included		Each
Dark Gray PVC Body







				Single Acting: Air-to-Open, Spring Return (Fail Closed)

				1/2	Female	NPT	Threaded	28	150 psi @ 70° F	Piston, Zero Pressure Drop	35 to 140	3"	7/8"	3 5/16"	1/8 NPT Female	40	80	4	1/4"-20	No	8170K23	0000000


				3/4	Female	NPT	Threaded	45	150 psi @ 70° F	Piston, Zero Pressure Drop	35 to 140	4"	1 1/8"	5"	1/8 NPT Female	40	80	4	3/8"-16	No	8170K24	000000
				1	Female	NPT	Threaded	75	150 psi @ 70° F	Piston, Zero Pressure Drop	35 to 140	4"	1 1/8"	5"	1/8 NPT Female	40	80	4	3/8"-16	No	8170K25	000000

Pilot Valves