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About Noise, Filtration, and Flow Ratings
More
Corrosion-Resistant Breather Vents
These breather vents withstand corrosion in damp environments. Use them to prevent excess vacuum and pressure in cylinders, gear boxes, and tanks and to block debris from entering equipment.
Stainless steel breather vents stand up to higher temperatures than polyethylene breather vents. Those with a Viton® fluoroelastomer O-ring offer extra protection against leaks. 316 stainless steel breather vents resist corrosion better than 303 and 304 stainless steel breather vents.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | O-Ring Material | Removes Particle Size Down To, microns | Each | |
Metric Male | |||||||||
|---|---|---|---|---|---|---|---|---|---|
316 Stainless Steel Body and Fitting | |||||||||
| M5 | Not Rated | 250 | 400° | 7/16" | Air, Inert Gas | Viton® Fluoroelastomer Rubber | 40 | 0000000 | 000000 |
Washdown Weather-Resistant Breather Vents
These breather vents are rated NEMA 6 to withstand periodic submersion in water. Install them in enclosures to stop the buildup of pressure and vacuum and to prevent debris from entering equipment. Breather vents can be used with enclosures that are rated NEMA 4, 12, and 13 for washdown environments and splashing oil and coolant.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Max. Pressure, psi | Max. Temp., °F | Ht. | Dia. | For Use With | O-Ring Material | Removes Particle Size Down To, microns | Features | Each | |
Threaded Metric Male | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Nylon Plastic Body and Fitting | ||||||||||
| M3 | 1.4 | 158° | 3/8" | 5/16" | Air | __ | 3 | __ | 0000000 | 000000 |
Polycarbonate Plastic Body and Fitting | ||||||||||
| M16 | 1.4 | 158° | 15/16" | 1 1/16" | Air | Buna-N Rubber | 3 | Mounting Nut | 0000000 | 00000 |
Aluminum Body and Fitting | ||||||||||
| M8 | 1.4 | 158° | 9/16" | 9/16" | Air | EPDM Rubber | 3 | __ | 0000000 | 00000 |
| M20 | 1.4 | 158° | 1" | 1 1/8" | Air | EPDM Rubber | 1 | __ | 0000000 | 00000 |
303 Stainless Steel Body and Fitting | ||||||||||
| M3 | 1.4 | 158° | 5/16" | 1/4" | Air | EPDM Rubber | 3 | __ | 0000000 | 00000 |
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.
Nylon mufflers resist corrosion and will not deteriorate when exposed to oil.
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. | Dia. | For Use With | Removes Particle Size Down To, microns | Noise Reduction Rating | Each | |
Metric Male Nickel-Plated Copper Fitting—Copper Body | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| B | M3 | 3 scfm @ 100 psi | 145 | 300° | 3/8" | 1/4" | Air | 100 | 13 dB | 0000000 | 00000 |
| B | M5 | 10 scfm @ 100 psi | 145 | 300° | 5/8" | 5/16" | Air | 100 | 18 dB | 0000000 | 0000 |
Metric Male Brass Fitting—Brass Body | |||||||||||
| A | M5 | 17 scfm @ 100 psi | 145 | 175° | 11/16" | __ | Air, Inert Gas | 50 | 10-20 dB | 0000000 | 0000 |
| F | M5 | 5 scfm @ 100 psi | 175 | 175° | 3/8" | __ | Air, Inert Gas | 100 | 10-20 dB | 0000000 | 0000 |
Metric Male Nylon Plastic Fitting—Nylon Plastic Body | |||||||||||
| G | M5 | 19 scfm @ 100 psi | 145 | 212° | 15/16" | 1/4" | Air, Inert Gas | 75 | 10-20 dB | 0000000 | 0000 |
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.
Brass, bronze, and nylon mufflers offer good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Thread 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 | |
Metric Male Nylon Plastic Fitting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 19 scfm @ 100 psi | 145 | 210° | 5/8" | Air, Inert Gas | 75 | 10-20 | Adjustable Airflow | 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.
For technical drawings and 3-D models, click on a part number.
| 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 | ||
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 | 000000 |
| B | M5 | 6 scfm @ 100 psi | 150 | 1000° | 11/16" | 5/16" | Air, Inert Gas | 100 | 18-20 dB | 0000000 | 00000 |
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.
| Thread Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | Dia. | For Use With | Body Material | Noise Reduction Rating, dB | Each | |
Metric Male Polypropylene Plastic Fitting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 14 scfm @ 72 psi | 145 | 140° | 9/16" | 1/4" | Air | Polypropylene Plastic | 30 | 0000000 | 00000 |
Submersible Threaded Breather Vents
Use these vents to maintain consistent pressure as temperatures fluctuate by allowing air to flow through sealed enclosures. All have a hydrophobic and oleophobic filter membrane that blocks moisture and contamination from particle buildup.
Nylon vents don’t conduct electricity, making them a good choice for most environments.
Polycarbonate vents don’t conduct electricity and withstand UV rays better than nylon vents, so they won’t break down as quickly in outdoor applications. All have a mounting nut for a secure connection in threaded as well as through holes.
Nickel-plated brass vents stand up to corrosive environments better than nylon and polycarbonate vents. They’re also durable, which means you won’t have to replace them as often.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | For Hole Dia. | Head Dia. | Environment | Environmental Rating | Specifications Met | Color | Features | Each | |
Metric | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Nylon Plastic | ||||||||||
| M12 | 1.5 | 1/2" | 11/16" | Corrosive, Damp, Dusty, Outdoor, Submersible, Washdown | IP68, IP65, NEMA 4X | UL 94 V-2, UL Recognized Component | Gray | Gasket | 00000000 | 00000 |
| M16 | 1.5 | 5/8" | 7/8" | Corrosive, Damp, Dusty, Outdoor, Submersible, Washdown | IP68, IP65, NEMA 4X | UL 94 V-2, UL Recognized Component | Gray | Gasket | 0000000 | 0000 |
| M20 | 1.5 | 13/16" | 1 1/16" | Corrosive, Damp, Dusty, Outdoor, Submersible, Washdown | IP68, IP65, NEMA 4X | UL 94 V-2, UL Recognized Component | Gray | Gasket | 0000000 | 0000 |
Polycarbonate Plastic | ||||||||||
| M5 | 0.8 | 3/16" | 1/2" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 0000 |
| M6 | 1 | 1/4" | 1/2" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 0000 |
| M8 | 1 | 5/16" | 9/16" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 00000 |
| M10 | 1 | 3/8" | 9/16" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 00000 |
| M12 | 1.5 | 1/2" | 11/16" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 00000 |
| M16 | 1.5 | 5/8" | 15/16" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 00000 |
| M18 | 1.5 | 11/16" | 15/16" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 00000 |
| M32 | 1.5 | 1 1/4" | 2 15/16" | Dusty, Submersible | IP67 | __ | Black | Gasket, Mounting Nut | 0000000 | 00000 |
Nickel-Plated Brass | ||||||||||
| M12 | 1.5 | 1/2" | 3/4" | Damp, Dusty, Submersible, Washdown | IP68, IP66 | __ | __ | Gasket | 0000000 | 00000 |
| M16 | 1.5 | 5/8" | 3/4" | Damp, Dusty, Submersible, Washdown | IP68, IP66 | __ | __ | Gasket | 0000000 | 00000 |
| M20 | 1.5 | 13/16" | 15/16" | Damp, Dusty, Submersible, Washdown | IP68, IP66 | __ | __ | Gasket | 0000000 | 00000 |
Corrosion-Resistant Washdown Threaded Breather Vents
Rated NEMA 4X, these vents provide protection from washdowns, corrosion, and power jets of water. Use them to maintain consistent pressure as temperatures fluctuate by allowing air to flow through sealed enclosures.
For technical drawings and 3-D models, click on a part number.
Hazardous Location Drain Vents
Safe for use around hazardous gasses and dust, these vents maintain steady pressure and prevent moisture buildup from temperature changes inside enclosures. They allow air to flow through the enclosures while protecting the contents from washdowns, dirt, and weather. Install these vents at the lowest point on an enclosure, so moisture can drip out.
Increased-safety drains keep sparks, high temperatures, or current creepage inside an enclosure, so they won’t ignite flammable gasses and dust.
Flameproof drains reduce the risk of igniting flammable gasses and dust if an explosion occurs within the enclosure.
Glass-filled nylon drains are lightweight yet durable. They’re good for most areas.
316 stainless steel drains stand up to corrosion. They’re best for areas with salt water.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | Height | Environmental Rating | Nut Material | O-Ring Material | Color | Maximum Temperature, °F | Specifications Met | Each | |
Increased-Safety Drains | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Glass-Filled Nylon Plastic | ||||||||||
| M20 | 1.5 | 1 1/4" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | Brass | Buna-N Rubber | Black | 185° | ATEX II 2DG IECEx Ex tb IIIC Db IECEx Exe II Gb | 0000000 | 000000 |
316 Stainless Steel | ||||||||||
| M20 | 1.5 | 1" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | 316 Stainless Steel | Buna-N Rubber | __ | 185° | ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 0000000 | 000000 |
| M25 | 1.5 | 1 5/16" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | 316 Stainless Steel | Buna-N Rubber | __ | 185° | ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 000000 | 000000 |
Flameproof Drains | ||||||||||
316 Stainless Steel | ||||||||||
| M20 | 1.5 | 1" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | __ | Silicone Rubber | __ | 300° | ATEX Ex d IIC Gb ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex d IIC Gb IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 0000000 | 000000 |
| M25 | 1.5 | 1 5/16" | NEMA 4X; IP66; NEC Class I Division 2 Groups A, B, C, D | __ | Silicone Rubber | __ | 300° | ATEX Ex d IIC Gb ATEX Ex e IIC Gb ATEX Ex tb IIIC Db IECEx Ex d IIC Gb IECEx Ex e IIC Gb IECEx Ex tb IIIC Db | 0000000 | 000000 |
Enclosure Drains
Mount these drains at the bottom of your enclosure to let moisture drip out and keep electronics dry.
Style A drains have a gasket that seals out air, water, and dust during high-pressure washdowns or when submerged. They also meet UL 94 V-0 for flame retardance.
Style B drains are for use in dusty and wet environments.
| Thread Size | Thread Pitch, mm | For Hole Diameter | Head Diameter | For Maximum Panel Thickness | Environmental Rating | Environment | Material | Specifications Met | Each | ||
| A | M50 | 1.5 | 2" | 2 3/8" | 3/16" | IP66, IP67, IP69K | Damp, Dusty, Washdown, High-Pressure Washdown, Outdoor, Submersible, Wet Location | Plastic | UL 746C f1, UL 94 V-0 | 0000000 | 000000 |
| B | M3 | 0.5 | 5/8" | 15/16" | 0.079" | IP55 | Damp, Dusty, Washdown | Plastic | __ | 00000000 | 0000 |
Vented Plastic Submersible Cord Grips
Vent air from your enclosure to equalize pressure and stop condensation from forming inside while securing cords in wet environments. These polyamide grips are lightweight and resist rusting. Because they’re IP rated, you can safely submerse them for brief periods of time. They also seal out water from washdowns and dust. All relieve strain on your cord if it’s pulled, prolonging its life.
For technical drawings and 3-D models, click on a part number.
| For Cord OD | For Knockout Trade Size | Thread Size | Material | Temperature Range, °F | Features | Environmental Rating | Specifications Met | Each | |
Metric Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0.16"-0.31" | M12 | M12 | Black Polyamide Plastic | 0° to 210° | Nylon Plastic Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 00000000 | 000000 |
| 0.16"-0.31" | M16 | M16 | Black Polyamide Plastic | 0° to 210° | Nylon Plastic Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 00000000 | 00000 |
| 0.24"-0.47" | M20 | M20 | Black Polyamide Plastic | 0° to 210° | Nylon Plastic Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 00000000 | 00000 |
Vented Brass Submersible Cord Grips
Secure cable installed through enclosures in wet environments while venting air to protect electronics from condensation. Vents on these cord grips equalize pressure between the inside and outside of an enclosure, preventing harmful moisture from forming. They are nickel-plated brass, so they resist corrosion. These cord grips are rated IP66 and IP67 for protection from dust, washdown, and temporary submersion.
For technical drawings and 3-D models, click on a part number.
| For Cord OD | For Knockout Trade Size | Thread Size | Temperature Range, °F | Features | Environmental Rating | Specifications Met | Each | |
Metric Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 0.16"-0.31" | M12 | M12 | 0° to 210° | Nickel-Plated Brass Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 0000000 | 000000 |
| 0.16"-0.31" | M16 | M16 | 0° to 210° | Nickel-Plated Brass Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 0000000 | 00000 |
| 0.2"-0.39" | M16 | M16 | 0° to 210° | Nickel-Plated Brass Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 0000000 | 00000 |
| 0.24"-0.47" | M20 | M20 | 0° to 210° | Nickel-Plated Brass Locknut, Rubber O-Ring | IP66, IP67 | CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified | 0000000 | 00000 |