About Noise, Filtration, and Flow Ratings
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Breather Vents
Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks. You can also use these breather vents to block debris from entering equipment.
For technical drawings and 3-D models, click on a part number.
| Style | Pipe Size  | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Each | |
NPSM Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Steel Body and Fitting | |||||||||
| F | 1/8 | 26 scfm @ 100 psi | 150 | 300° | 5/8" | Air, Inert Gas | 90 | 0000000 | 00000 |
| F | 1/4 | 35 scfm @ 100 psi | 150 | 300° | 3/4" | Air, Inert Gas | 90 | 0000000 | 0000 |
| F | 3/8 | 87 scfm @ 100 psi | 150 | 300° | 15/16" | Air, Inert Gas | 90 | 0000000 | 0000 |
| F | 1/2 | 131 scfm @ 100 psi | 150 | 300° | 1" | Air, Inert Gas | 90 | 0000000 | 00000 |
Mufflers
Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.
Brass, bronze, and copper mufflers offer good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Style | Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating | Each | |
NPSM Female Steel Fitting—Bronze Body | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | 1/8 | 53 scfm @ 100 psi | 125 | 300° | 1 5/16" | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 00000 |
| N | 1/4 | 70 scfm @ 100 psi | 125 | 300° | 1 1/2" | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 0000 |
| N | 3/8 | 175 scfm @ 100 psi | 125 | 300° | 2" | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 0000 |
| N | 1/2 | 263 scfm @ 100 psi | 125 | 300° | 2 1/4" | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 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.
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, dBA | Each | |
NPSM Female Zinc-Plated Steel Fitting | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 48 scfm @ 100 psi | 150 | 400° | 1 3/4" | Air, Inert Gas | 100 | 17-22 | 0000000 | 000000 |
| 1/4 | 105 scfm @ 100 psi | 150 | 400° | 2 1/4" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
| 3/8 | 219 scfm @ 100 psi | 150 | 400° | 2 3/4" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
| 1/2 | 332 scfm @ 100 psi | 150 | 400° | 3 1/8" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
High-Flow Mufflers
Commonly used with high-flow, air-powered equipment, such as diaphragm pumps and valves, these mufflers reduce noise and filter exhaust fumes without restricting flow.
For technical drawings and 3-D models, click on a part number.
Mufflers | Replacement Filters | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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, dBA | Each | Each | ||
NPSM Female Aluminum Fitting | ||||||||||||
| 1/4 | 92 scfm @ 100 psi | 125 | 210° | 4" | 1 7/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 000000 |
| 3/8 | 210 scfm @ 100 psi | 125 | 210° | 4 9/16" | 2 5/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1/2 | 280 scfm @ 100 psi | 125 | 210° | 5 1/2" | 3 3/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 3/4 | 595 scfm @ 100 psi | 125 | 210° | 6 11/16" | 3 7/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1 | 876 scfm @ 100 psi | 125 | 210° | 7 15/16" | 3 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 8" | 3 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1 1/2 | 2,277 scfm @ 100 psi | 125 | 210° | 12 1/2" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 00000 |
| 2 | 3,504 scfm @ 100 psi | 125 | 210° | 17 3/4" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 000000 |
Oil-Mist-Eliminating Mufflers
In addition to a filter, these mufflers have a wool felt disc to trap oil mist. They are often used with vacuum pumps and suction devices to reduce noise and filter exhaust fumes.
For technical drawings and 3-D models, click on a part number.
| 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, dBA | Each | |
NPSM Female Aluminum Fitting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 876 scfm @ 100 psi | 125 | 210° | 7 15/16" | 3 7/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
| 1 1/2 | 2,277 scfm @ 100 psi | 125 | 210° | 12 1/2" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
| 2 | 3,504 scfm @ 100 psi | 125 | 210° | 17 3/4" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |