Matching Flow Diagrams to Replace an Air Directional Control Valve
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Choosing an Air Directional Control Valve
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About Noise, Filtration, and Flow Ratings
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About Flow Control Valves
Also known as cylinder speed controls, flow control valves let you control the extension or retraction speed of your air cylinder. They regulate airflow as it passes from the valve's inlet to its outlet. Air flows freely in the opposite direction.
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Mufflers
Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.
Styles P, Q, and R have a tube stem that slides into tube fittings and collets to decrease noise from manifolds.
Polybutylene mufflers offer flame resistance. They’re good for use in welding applications and other areas where sparks may occur.
For technical drawings and 3-D models, click on a part number.
| Style | For Tube ID | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | Dia. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating  | Each | |
Tube Stem Polybutylene Plastic Fitting—Polybutylene Plastic Body | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 6mm | 27 scfm @ 100 psi | 145 | 140° | 2 1/16" | 5/8" | Air | Not Rated | 38 dB | 0000000 | 00000 |
| P | 8mm | 42 scfm @ 100 psi | 145 | 140° | 2 7/8" | 7/8" | Air | Not Rated | 38 dB | 0000000 | 00000 |
| P | 10mm | 95 scfm @ 100 psi | 145 | 140° | 3 11/16" | 1" | Air | Not Rated | 38 dB | 0000000 | 00000 |
Flame-Resistant High-Noise-Reducing Mufflers
Suitable for use with welding equipment, these mufflers are made of flame-resistant materials. Use them on loud equipment to filter exhaust fumes and reduce noise by 35 dB.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating, dB | Each | |
NPT Male Polybutylene Plastic Fitting | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 106 scfm @ 100 psi | 145 | 140° | 2 1/2" | Air | 100 | 35 | 0000000 | 00000 |
| 3/8 | 176 scfm @ 100 psi | 145 | 140° | 3 5/16" | Air | 100 | 35 | 0000000 | 0000 |
| 1/2 | 283 scfm @ 100 psi | 145 | 140° | 3 3/4" | Air | 100 | 35 | 0000000 | 0000 |
Elbow Air-Exhaust Control Valves with Flow Control
Control the flow of exhaust air while also regulating the exhaust air speed. These valves dump exhaust air to the atmosphere without routing it back through a directional control valve. They control flow in one direction as air flows from the inlet to the outlet, and adjust the volume of exhaust air exiting an air cylinder (meter out) to control its speed. Air flows freely in the opposite direction. They have a 90° elbow shape that allows you to install them in tight spaces. The push-to-connect inlet port is for use with plastic or soft metal tubing; insert tubing into the port. A muffler reduces exhaust noise. Also known as quick exhaust valves.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Flow Ports | For Inlet Tube OD | Outlet Pipe Size | Outlet Thread Type | For Outlet Tube OD | Max. Flow Rate, scfm @ 100 psi | Flow Coefficient (Cv) | Pressure Range, psi | Body Material | Lg. | Wd. | Ht. | Each | |
Push to Connect Female Inlet × Threaded Male Outlet | |||||||||||||
| 3 | 1/4" | 1/4 | NPT | 1/4" | 14.05 | 0.44 | 14-145 | PBT Plastic | 2 7/8" | 11/16" | 1 1/8" | 00000000 | 000000 |
| 3 | 1/4" | 1/8 | NPT | 1/4" | 14.05 | 0.44 | 14-145 | PBT Plastic | 2 7/8" | 11/16" | 1 1/16" | 00000000 | 00000 |
| 3 | 5/16" | 1/4 | NPT | 5/16" | 24.91 | 0.78 | 14-145 | PBT Plastic | 3 1/4" | 15/16" | 1 3/8" | 00000000 | 00000 |
| 3 | 5/16" | 1/8 | NPT | 5/16" | 24.91 | 0.78 | 14-145 | PBT Plastic | 2 7/8" | 15/16" | 1 3/16" | 00000000 | 00000 |
| 3 | 5/16" | 3/8 | NPT | 5/16" | 24.91 | 0.78 | 14-145 | PBT Plastic | 3 1/4" | 15/16" | 1 1/8" | 00000000 | 00000 |
| 3 | 3/8" | 1/2 | NPT | 3/8" | 51.09 | 1.6 | 14-145 | PBT Plastic | 3 9/16" | 1 3/16" | 1 5/8" | 00000000 | 00000 |
| 3 | 3/8" | 1/4 | NPT | 3/8" | 24.91 | 0.78 | 14-145 | PBT Plastic | 3 3/8" | 15/16" | 1 5/8" | 00000000 | 00000 |
| 3 | 3/8" | 1/4 | NPT | 3/8" | 47.89 | 1.5 | 14-145 | PBT Plastic | 3 9/16" | 15/16" | 1 5/8" | 00000000 | 00000 |
| 3 | 3/8" | 1/8 | NPT | 3/8" | 24.91 | 0.78 | 14-145 | PBT Plastic | 3 3/8" | 15/16" | 1 5/16" | 00000000 | 00000 |
| 3 | 3/8" | 3/8 | NPT | 3/8" | 24.91 | 0.78 | 14-145 | PBT Plastic | 3 3/8" | 15/16" | 1 5/16" | 00000000 | 00000 |
| 3 | 3/8" | 3/8 | NPT | 3/8" | 51.09 | 1.6 | 14-145 | PBT Plastic | 3 9/16" | 1 3/16" | 1 3/4" | 00000000 | 00000 |
Quiet Air-Exhaust Control Valves
A muffler on these valves reduces exhaust noise. They allow airflow into your equipment and then quickly vent exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. Also known as quick exhaust valves.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.
Overall | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Flow Ports | For Inlet Tube OD | For Outlet Tube OD | Maximum Flow Rate | Flow Coefficient (Cv) | Pressure Range, psi | Body Material | Lg. | Wd. | Ht. | Each | |
Push-to-Connect Female Inlet × Push-to-Connect Female Outlet | |||||||||||
| 3 | 1/4" | 1/4" | 11.36 scfm @ 100 psi | 0.8 | 14-145 | PBT Plastic | 2" | 1/2" | 3/4" | 0000000 | 000000 |
| 3 | 1/4" | 1/4" | 6.82 scfm @ 100 psi | 0.54 | 14-145 | PBT Plastic | 1 5/8" | 1/2" | 5/8" | 0000000 | 00000 |
| 3 | 4mm | 4mm | 4.47 scfm @ 100 psi | 0.14 | 14-145 | PBT Plastic | 39.7mm | 10mm | 14.3mm | 0000000 | 00000 |
| 3 | 6mm | 6mm | 11.36 scfm @ 100 psi | 0.8 | 14-145 | PBT Plastic | 44.5mm | 11.6mm | 19mm | 0000000 | 00000 |
| 3 | 6mm | 6mm | 4.79 scfm @ 100 psi | 0.15 | 14-145 | PBT Plastic | 41.3mm | 11.6mm | 15.9mm | 0000000 | 00000 |