About Noise, Filtration, and Flow Ratings
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Mufflers
Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.
Styles D and E have a rubber O-ring for extra protection against leaks.
316 stainless steel mufflers offer excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Style | Thread Size  | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating | Each | |
UNF Male 303 Stainless Steel Fitting—316 Stainless Steel Body | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| E | 10-32 | 5 scfm @ 100 psi | 300 | 300° | 1 1/16" | Air, Inert Gas | 40 | 17-22 dBA | 0000000 | 000000 |
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 | |
NPT Male 304 Stainless Steel Fitting | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 48 scfm @ 100 psi | 150 | 400° | 1 3/8" | Air, Inert Gas | 100 | 17-22 | 0000000 | 000000 |
| 1/4 | 105 scfm @ 100 psi | 150 | 400° | 1 3/4" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
| 3/8 | 219 scfm @ 100 psi | 150 | 400° | 2 3/16" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
| 1/2 | 332 scfm @ 100 psi | 150 | 400° | 2 3/4" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
| 3/4 | 613 scfm @ 100 psi | 150 | 400° | 3 3/16" | Air, Inert Gas | 100 | 17-22 | 0000000 | 00000 |
| 1 | 876 scfm @ 100 psi | 150 | 400° | 3 7/8" | Air, Inert Gas | 100 | 17-22 | 0000000 | 000000 |
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 | ||
NPT Male Aluminum Fitting | ||||||||||||
| 1/8 | 48 scfm @ 100 psi | 125 | 210° | 3 1/8" | 1 7/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 00000 |
| 1/4 | 92 scfm @ 100 psi | 125 | 210° | 4 3/8" | 1 7/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 0000 |
| 3/8 | 210 scfm @ 100 psi | 125 | 210° | 5 1/8" | 2 5/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1/2 | 280 scfm @ 100 psi | 125 | 210° | 6" | 3 3/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 3/4 | 595 scfm @ 100 psi | 125 | 210° | 7 3/16" | 3 7/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1 | 876 scfm @ 100 psi | 125 | 210° | 8 3/4" | 3 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 8 3/4" | 3 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 1 1/2 | 2,277 scfm @ 100 psi | 125 | 210° | 13 9/16" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 00000 |
| 2 | 3,504 scfm @ 100 psi | 125 | 210° | 18 7/8" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 00000 |
| 3 | 7,884 scfm @ 100 psi | 125 | 210° | 22 7/8" | 6 7/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 00000 |
| 4 | 15,330 scfm @ 100 psi | 125 | 210° | 23 1/2" | 7 13/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 00000 |
| 6 | 39,420 scfm @ 100 psi | 125 | 210° | 30 7/8" | 10 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 00000 |
NPSM Female Aluminum Fitting | ||||||||||||
| 1/4 | 92 scfm @ 100 psi | 125 | 210° | 4" | 1 7/8" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 0000000 | 0000 |
| 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 | 00000 | 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 | 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.
304 stainless steel offers very good corrosion resistance.
316 stainless steel offers excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Thread Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | Dia. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating | Each | ||
NPT Male 304 Stainless Steel Fitting | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1/8 | __ | 53 scfm @ 100 psi | 125 | 300° | 15/16" | __ | Air, Inert Gas | 50 | 17-22 dBA | 0000000 | 000000 |
| A | 1/4 | __ | 70 scfm @ 100 psi | 125 | 300° | 1 5/16" | __ | Air, Inert Gas | 50 | 17-22 dBA | 0000000 | 00000 |
| A | 3/8 | __ | 175 scfm @ 100 psi | 125 | 300° | 1 1/2" | __ | Air, Inert Gas | 50 | 17-22 dBA | 0000000 | 00000 |
| A | 1/2 | __ | 263 scfm @ 100 psi | 125 | 300° | 2" | __ | Air, Inert Gas | 50 | 17-22 dBA | 0000000 | 00000 |
| A | 3/4 | __ | 438 scfm @ 100 psi | 125 | 300° | 2 5/16" | __ | Air, Inert Gas | 50 | 17-22 dBA | 0000000 | 00000 |
| A | 1 | __ | 613 scfm @ 100 psi | 125 | 300° | 3 1/8" | __ | Air, Inert Gas | 50 | 17-22 dBA | 0000000 | 00000 |
NPT Male 316 Stainless Steel Fitting | ||||||||||||
| B | 1/8 | __ | 22 scfm @ 100 psi | 150 | 1000° | 1 1/4" | 3/8" | Air, Inert Gas | 100 | 10-20 dBA | 0000000 | 00000 |
| B | 1/4 | __ | 66 scfm @ 100 psi | 150 | 1000° | 1 5/8" | 5/8" | Air, Inert Gas | 100 | 10-20 dBA | 0000000 | 00000 |
| B | 1/2 | __ | 127 scfm @ 100 psi | 150 | 1000° | 2 1/8" | 7/8" | Air, Inert Gas | 100 | 10-20 dBA | 0000000 | 00000 |
| B | 3/4 | __ | 160 scfm @ 100 psi | 150 | 1000° | 2 1/4" | 1 1/16" | Air, Inert Gas | 100 | 10-20 dBA | 0000000 | 00000 |
| B | 1 | __ | 210 scfm @ 100 psi | 150 | 1000° | 2 7/16" | 1 7/16" | Air, Inert Gas | 100 | 10-20 dBA | 0000000 | 00000 |
Metric Male 316 Stainless Steel Fitting | ||||||||||||
| B | __ | M3 | 3 scfm @ 100 psi | 150 | 1000° | 3/8" | 1/4" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 |
| B | __ | M5 | 6 scfm @ 100 psi | 150 | 1000° | 11/16" | 5/16" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 |
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 | 00000 |
| A | 1/4 | __ | 36 scfm @ 100 psi | 150 | 1000° | 2 1/16" | __ | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 |
| A | 3/8 | __ | 65 scfm @ 100 psi | 150 | 1000° | 2 1/16" | __ | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 |
| A | 1/2 | __ | 90 scfm @ 100 psi | 150 | 1000° | 2 5/16" | __ | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 |
Flow-Control Mufflers
Adjust the flow by turning the screw. Use these mufflers with air-powered tools and cylinders to reduce noise and filter exhaust fumes.
For mufflers with an external hex drive, twist the screw and then tighten the hex nut with a wrench to secure. These mufflers are more secure than those with a thumb screw.
Stainless steel mufflers offer excellent corrosion resistance.
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 | Features | Each | |
NPT Male 316 Stainless Steel Fitting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 12 scfm @ 100 psi | 300 | 390° | 1 1/4" | Air, Inert Gas | 70 | Not Rated | Adjustable Airflow | 0000000 | 000000 |
| 1/4 | 25 scfm @ 100 psi | 300 | 390° | 1 9/16" | Air, Inert Gas | 70 | Not Rated | Adjustable Airflow | 0000000 | 00000 |
| 3/8 | 30 scfm @ 100 psi | 300 | 390° | 1 5/8" | Air, Inert Gas | 70 | Not Rated | Adjustable Airflow | 0000000 | 00000 |
| 1/2 | 50 scfm @ 100 psi | 300 | 390° | 1 15/16" | Air, Inert Gas | 70 | Not Rated | Adjustable Airflow | 0000000 | 00000 |
| 3/4 | 70 scfm @ 100 psi | 300 | 390° | 2 1/4" | Air, Inert Gas | 70 | Not Rated | Adjustable Airflow | 0000000 | 00000 |
| 1 | 100 scfm @ 100 psi | 300 | 390° | 2 3/8" | Air, Inert Gas | 70 | Not Rated | Adjustable Airflow | 0000000 | 00000 |
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 | |
NPT Male Aluminum Fitting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 48 scfm @ 100 psi | 125 | 210° | 3 1/8" | 1 7/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
| 1/4 | 92 scfm @ 100 psi | 125 | 210° | 4 3/8" | 1 7/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 3/8 | 210 scfm @ 100 psi | 125 | 210° | 5 1/8" | 2 5/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 1/2 | 280 scfm @ 100 psi | 125 | 210° | 6" | 3 3/16" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 3/4 | 595 scfm @ 100 psi | 125 | 210° | 7 3/16" | 3 3/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 1 | 876 scfm @ 100 psi | 125 | 210° | 8 3/4" | 3 7/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 1 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 8 3/4" | 3 7/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 1 1/2 | 2,277 scfm @ 100 psi | 125 | 210° | 13 9/16" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
| 2 | 3,504 scfm @ 100 psi | 125 | 210° | 18 7/8" | 5 1/4" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
| 3 | 7,884 scfm @ 100 psi | 125 | 210° | 22 15/16" | 7" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
| 4 | 15,330 scfm @ 100 psi | 125 | 210° | 23 9/16" | 8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 000000 |
NPSM Female Aluminum Fitting | ||||||||||
| 1 | 876 scfm @ 100 psi | 125 | 210° | 7 15/16" | 3 7/8" | Air, Inert Gas | 5 | 17-25 | 0000000 | 00000 |
| 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 |
Inline Mufflers
With a threaded connection on both ends, these mufflers can be installed anywhere in your line. Use with large blowers, diaphragm pumps, vacuum pumps, and compressors to reduce noise and filter exhaust fumes.
| Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Dia. | Lg. | For Use With | Body Material | Removes Particle Size Down To, microns | Noise Reduction Rating, dBA | Each | |
NPT Male Aluminum Fittings | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 48 scfm @ 100 psi | 125 | 210° | 1 7/8" | 3 7/8" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 000000 |
| 1/4 | 92 scfm @ 100 psi | 125 | 210° | 1 7/8" | 5 5/16" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 00000 |
| 3/8 | 210 scfm @ 100 psi | 125 | 210° | 2 5/8" | 6" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 00000 |
| 1/2 | 280 scfm @ 100 psi | 125 | 210° | 3 3/16" | 7" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 00000 |
| 3/4 | 595 scfm @ 100 psi | 125 | 210° | 3 7/16" | 8 1/4" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 00000 |
| 1 | 876 scfm @ 100 psi | 125 | 210° | 3 15/16" | 10 5/16" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 00000 |
| 1 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 3 15/16" | 10 3/8" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 00000 |
| 1 1/2 | 2,277 scfm @ 100 psi | 125 | 210° | 5 1/4" | 15 3/8" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 000000 |
| 2 | 3,504 scfm @ 100 psi | 125 | 210° | 5 1/4" | 20 3/4" | Air, Inert Gas | 409 Stainless Steel and Aluminum | 5 | 17-22 dBA | 0000000 | 000000 |