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.
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 | |
NPT Male Nickel-Plated Steel Fitting—Bronze Body | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | 1 1/4 | 154 scfm @ 100 psi | 300 | 300° | 3 1/4" | Air, Inert Gas | 90 | 15-20 dB | 000000 | 000000 |
BSPT Male Zinc-Plated Steel Fitting—Bronze Body | ||||||||||
| A | 1 1/4 | 700 scfm @ 100 psi | 125 | 300° | 3 1/2" | Air, Inert Gas | 90 | 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 | |
NPT Male Zinc-Plated Steel Fitting | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 1/4 | 1,226 scfm @ 100 psi | 150 | 400° | 4 1/2" | Air, Inert Gas | 100 | 17-22 | 0000000 | 000000 |
BSPT Male Zinc-Plated Steel Fitting | |||||||||
| 1 1/4 | 1,226 scfm @ 100 psi | 150 | 400° | 4 1/2" | Air, Inert Gas | 100 | 15-22 | 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 | ||
NPT Male Aluminum Fitting | ||||||||||||
| 1 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 8 3/4" | 3 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 000000 | 0000000 | 000000 |
NPSM Female Aluminum Fitting | ||||||||||||
| 1 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 8" | 3 15/16" | Air, Inert Gas | 5 | 17-25 | 00000000 | 00000 | 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 1/4 | 1,489 scfm @ 100 psi | 125 | 210° | 8 3/4" | 3 7/8" | 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.
Mufflers with steel body and fittings are heavy duty for durability in rugged environments.
| Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Dia. | Lg. | For Use With | Body Material | Body Color | Insulation Material | Removes Particle Size Down To, microns | Noise Reduction Rating, dBA | Each | |
NPT Male Aluminum Fittings | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 000000 |
NPT Male Steel Fittings | |||||||||||||
| 1 1/4 | 55 scfm @ 14.5 psi | Not Rated | 212° | 2 1/2" | 14 1/2" | Air, Inert Gas | Painted Steel | Gray | Polyester Plastic | __ | 10-15 dBA | 0000000 | 000000 |
NPT Female Steel Fittings | |||||||||||||
| 1 1/4 | 55 scfm @ 14.5 psi | Not Rated | 212° | 2 1/2" | 12" | Air, Inert Gas | Painted Steel | Gray | Polyester Plastic | __ | 10-15 dBA | 0000000 | 000000 |
High-Noise-Reducing Mufflers
Install these mufflers in air-powered drills and other loud equipment. They filter exhaust fumes and reduce noise by 30 dB, a reduction that's equivalent to putting in earplugs.
Mufflers with pipe connections thread into NPT or metric threaded exhaust ports.
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 | Body Material | Noise Reduction Rating, dB | Each | |
NPT Male Aluminum Fitting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 1/4 | 1,059 scfm @ 72 psi | 145 | 140° | 7 5/16" | 2 15/16" | Air | Steel | 30 | 0000000 | 000000 |
Inline High-Noise-Reducing Mufflers
With a threaded connection on both ends, these mufflers can be installed anywhere in your line. They are designed to minimize noise from rotary and centrifugal blowers, vacuum pumps, low-pressure vents, and other loud equipment with minimal pressure drop.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Dia. | Lg. | For Use With | Body Material | Insulation Material | Noise Reduction Rating, dB | Each | |
NPT Female Steel Fittings | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 1/4 | 70 scfm @ 14.7 psi | 15 | 325° | 3 1/4" | 16" | Air, Inert Gas | Steel | Polywool | 45 | 0000000 | 0000000 |
Air-Intake Filters
Stop dust and other contaminants from entering your process and equipment. Use these filters on blowers, compressors, engines, and in hydraulic systems.
Filters with silencer reduce intake noise by up to 15 dBA while maximizing air flow.
Consider the filter material when choosing replacement elements. Polyester and fiberglass elements are more durable than paper. HEPA elements are often used for high-purity applications, since they have the highest efficiency, but they reduce the maximum flow rate of your filter.
Wrap pre-filters around filter elements to protect them and extend their life.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Air-Intake Filters
Made of polypropylene, these filters can be used in damp environments where corrosion is a concern. Use them to stop dust and other contaminants from entering your process and equipment.
Filters with silencer reduce intake noise by up to 10 dBA while maximizing air flow.
Replacement elements are sold separately; polyester elements are more durable than paper elements.
For technical drawings and 3-D models, click on a part number.
O'all | Element | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Max. Flow Rate | Max. Temp., °F | Ht. | Dia. | Removes Particle Size Down To, microns | Filter Efficiency | Ht. | ID | OD | Material | Each | |
Filters with Silencer | ||||||||||||||
| 1 1/4 | NPT | Male | 60 scfm @ 100 psi | 200° | 7" | 6 3/4" | 10 | 99% | 4 3/4" | 3" | 4 3/8" | Polyester Plastic | 0000000 | 000000 |