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.
Style B is knurled for easy gripping.
Brass, bronze, and copper mufflers offer good corrosion resistance.
Each | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Pipe Size  | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | Dia. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating | 1-24 | 25-99 | 100-Up | |
BSPT Male Nickel-Plated Copper Fitting—Copper Body | |||||||||||||
| B | 1/8 | 18 scfm @ 100 psi | 145 | 300° | 13/16" | 7/16" | Air | 100 | 16 dB | 0000000 | 00000 | 00000 | 00000 |
| B | 1/8 | 28 scfm @ 100 psi | 145 | 300° | 1 5/16" | 1/2" | Air | 100 | 16 dB | 0000000 | 0000 | 0000 | 0000 |
BSPT Male Zinc-Plated Steel Fitting—Bronze Body | |||||||||||||
| A | 1/8 | 53 scfm @ 100 psi | 125 | 300° | 15/16" | __ | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 0000 | 0000 | 0000 |
| A | 1/4 | 70 scfm @ 100 psi | 125 | 300° | 1 5/16" | __ | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 0000 | 0000 | 0000 |
| A | 3/8 | 175 scfm @ 100 psi | 125 | 300° | 1 1/2" | __ | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 0000 | 0000 | 0000 |
| A | 1/2 | 263 scfm @ 100 psi | 125 | 300° | 2" | __ | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 0000 | 0000 | 0000 |
| A | 3/4 | 438 scfm @ 100 psi | 125 | 300° | 2 5/16" | __ | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 00000 | 00000 | 00000 |
| A | 1 | 613 scfm @ 100 psi | 125 | 300° | 2 15/16" | __ | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 00000 | 00000 | 00000 |
| A | 1 1/4 | 700 scfm @ 100 psi | 125 | 300° | 3 1/2" | __ | Air, Inert Gas | 90 | 17-22 dBA | 0000000 | 00000 | 00000 | 00000 |
| A | 1 1/2 | 1,314 scfm @ 100 psi | 125 | 300° | 4" | __ | Air, Inert Gas | 90 | 17-22 dBA | 0000000 | 00000 | 00000 | 00000 |
| A | 2 | 2,190 scfm @ 100 psi | 125 | 300° | 4 13/16" | __ | Air, Inert Gas | 90 | 17-22 dBA | 0000000 | 00000 | 00000 | 00000 |
Compact High-Flow Mufflers
A small hex size makes these high-flow mufflers a good fit for cramped spaces. Commonly used with high-flow, air-powered equipment, such as diaphragm pumps and valves, they reduce noise and filter exhaust fumes without restricting flow.
| Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating, dBA | Each | |
BSPT Male Zinc-Plated Steel Fitting | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 48 scfm @ 100 psi | 150 | 400° | 1 3/8" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 1/4 | 105 scfm @ 100 psi | 150 | 400° | 1 3/4" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 3/8 | 219 scfm @ 100 psi | 150 | 400° | 2 3/16" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 1/2 | 332 scfm @ 100 psi | 150 | 400° | 2 3/4" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 3/4 | 613 scfm @ 100 psi | 150 | 400° | 3 3/16" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 1 | 876 scfm @ 100 psi | 150 | 400° | 3 7/8" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 1 1/4 | 1,226 scfm @ 100 psi | 150 | 400° | 4 1/2" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 1 1/2 | 1,576 scfm @ 100 psi | 150 | 400° | 5" | Air, Inert Gas | 100 | 15-22 | 0000000 | 00000 |
| 2 | 2,452 scfm @ 100 psi | 150 | 400° | 5 1/2" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
Corrosion-Resistant Mufflers
Made entirely of stainless steel, these mufflers stand up to harsh, corrosive environments. Use them to reduce noise from equipment and to filter exhaust fumes.
316 stainless steel offers excellent corrosion resistance.
Each | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating | 1-14 | 15-Up | ||
BSPT Male 316 Stainless Steel Fitting | |||||||||||
| B | 1/8 | 19 scfm @ 100 psi | 150 | 1000° | 1 1/2" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 000000 | 000000 |
| A | 1/4 | 36 scfm @ 100 psi | 150 | 1000° | 2 1/16" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 | 00000 |
| A | 3/8 | 65 scfm @ 100 psi | 150 | 1000° | 2 1/16" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 | 00000 |
| A | 1/2 | 90 scfm @ 100 psi | 150 | 1000° | 2 5/16" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 | 00000 |
Air-Exhaust Flow Control Valves
Install these valves in the exhaust ports of air directional control valves to control exhaust air speed without needing access to your cylinder. They control flow in one direction as air moves from the inlet to the exhaust port (meter out). Air flows freely in the opposite direction. Valves exhaust to the atmosphere and include a muffler to reduce the exhaust noise.
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.