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About Actuated On/Off Valves
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Choose the right automatic on/off valve based on power source, pressure, and flow rate.
Severe-Duty Air-Driven On/Off Valves for Chemicals
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Also known as diaphragm valves, these have a PTFE body and seals that stand up to harsh acidic solutions. The diaphragm can handle dirty liquid, slurries, and abrasive media without damage. 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. Valves are fail closed unless actuated.
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 | Mounting Stud Screw Size | No. of Mounting Studs | Fasteners Included | Each | |||
PTFE Body | ||||||||||||||||||||
Single Acting: Air-to-Open, Spring Return (Fail Closed) | ||||||||||||||||||||
| 1/4 | Female | NPT | Threaded | 0.7 | 60 psi @ 140° F | Diaphragm, Zero Pressure Drop | 35 to 175 | 2 1/8" | 2 1/8" | 2 7/8" | 1/8 NPT Female | 40 | 60 | — | 2 | No | 46545K43 | 0000000 | ||
| 1/2 | Female | NPT | Threaded | 2.8 | 60 psi @ 140° F | Diaphragm, Zero Pressure Drop | 35 to 210 | 2 3/4" | 2 3/4" | 3 3/8" | 1/8 NPT Female | 60 | 80 | 1/4" | 2 | No | 45185K24 | 000000 | ||
High-Flow Air-Driven On/Off Valves for Chemicals
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Assembled View |
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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 | 000000 | ||
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 | 000000 | ||
| 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
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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.
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 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 | ||
White Polypropylene Body | ||||||||||||||||||||
Single Acting: Air-to-Open, Spring Return (Fail Closed) | ||||||||||||||||||||
| 1/2 | Female | NPT | Threaded | 28 | 150 psi @ 85° F | Piston, Zero Pressure Drop | 0 to 180 | 3" | 7/8" | 3 5/16" | 1/8 NPT Female | 40 | 80 | 4 | 1/4"-20 | No | 8170K53 | 000000 | ||
| 3/4 | Female | NPT | Threaded | 45 | 150 psi @ 85° F | Piston, Zero Pressure Drop | 0 to 180 | 4" | 1 1/8" | 5" | 1/8 NPT Female | 40 | 80 | 4 | 3/8"-16 | No | 8170K54 | 000000 | ||
| 1 | Female | NPT | Threaded | 75 | 150 psi @ 85° F | Piston, Zero Pressure Drop | 0 to 180 | 4" | 1 1/8" | 5" | 1/8 NPT Female | 40 | 80 | 4 | 3/8"-16 | No | 8170K55 | 000000 | ||
Air-Operated Air Flow Control Valves with Safety Shut-Off
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Protect air-powered equipment in emergency shut-off situations—when system pressure drops, the air signal stops and these valves automatically close to stop cylinder motion, even at a mid-stroke. They control the speed of air-powered equipment by adjusting the volume of airflow. A pressure-release button allows you to exhaust any trapped air pressure from the system after shut down. Install them in pairs on cylinder exhaust ports, and use tee connectors (not included) to direct exhaust air from the cylinder to the air of the opposite valve, and to connect valves to a directional control valve. The elbow shape allows you to mount them directly to cylinder ports, eliminating additional tubing or piping between the cylinder and valve for better control and consistency than inline valves.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.
Push-to-Connect Female Inlet × NPT Male Outlet × Female Air Pilot
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Valves with push-to-connect ports are for use with plastic or soft metal tubing. Insert tubing into the port.
One Direction—One direction valves control flow as air exits the cylinder (meter out) and moves from the inlet to the outlet.
Air Pilot | Flow Rate @ 73 psi, scfm | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Inlet Tube OD | Outlet Pipe Size | Pipe Size | Thread Size | Thread Type | Flow Coefficient (Cv) | Min. | Max. | Max. Pressure, psi | Temp. Range, ° F | Flow Adjustment Mechanism | Flow Control Location (ISO Designation) | Features | Each | |||
Polybutylene Body—One Direction | ||||||||||||||||
| 1/4" | 1/8 | — | 10-32 | UNF | 0.18 | 0 | 7.2 | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N111 | 000000 | ||
| 1/4" | 1/4 | 1/8 | — | NPT | 0.18 | 0 | 7.2 | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N112 | 00000 | ||
| 3/8" | 3/8 | 1/8 | — | NPT | 0.18 | 0 | 7.2 | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N113 | 00000 | ||
Push-to-Connect Female Inlet × BSPP Male Outlet × Push-to-Connect Female Air Pilot
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Valves with push-to-connect ports are for use with plastic or soft metal tubing. Insert tubing into the port.
One Direction—One direction valves control flow as air exits the cylinder (meter out) and moves from the inlet to the outlet.
Two Direction—Two direction valves control airflow as it enters (meter in) and exits (meter out) equipment, and are often used to control the extension and retraction speed of an air cylinder at the same time.
Flow Rate @ 87 psi, scfm | Flow Rate @ 100 psi, scfm | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Inlet Tube OD, mm | Outlet Pipe Size | For Air Pilot Tube OD, mm | Flow Coefficient (Cv) | Min. | Max. | Min. | Max. | Max. Pressure, psi | Temp. Range, ° F | Flow Adjustment Mechanism | Flow Control Location (ISO Designation) | Features | Each | |||
Nylon Body—One Direction | ||||||||||||||||
| 6 | 1/4 | 4 | Not Rated | 0 | 16.77 | — | — | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N114 | 0000000 | ||
| 8 | 1/8 | 4 | Not Rated | 0 | 8.48 | — | — | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N115 | 000000 | ||
| 8 | 3/8 | 4 | Not Rated | 0 | 30.9 | — | — | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N116 | 000000 | ||
| 10 | 3/8 | 4 | Not Rated | 0 | 33.2 | — | — | 145 | 25 to 140 | Dial | Exiting Cylinder (Meter Out) | Pressure-Release Button | 2747N117 | 000000 | ||
Polybutylene Body—Two Direction | ||||||||||||||||
| 6 | 1/8 | 6 | 0.234 | — | — | 0 | 8.1 | 145 | 15 to 140 | Slotted Screw | Exiting Cylinder (Meter Out), Entering Cylinder (Meter In) | Pressure-Release Button | 2747N118 | 000000 | ||
| 8 | 1/4 | 8 | 0.549 | — | — | 0 | 18.9 | 145 | 15 to 140 | Slotted Screw | Exiting Cylinder (Meter Out), Entering Cylinder (Meter In) | Pressure-Release Button | 2747N119 | 000000 | ||
