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 | Each | |
Threaded UNF Male | |||||||||
---|---|---|---|---|---|---|---|---|---|
Aluminum Body and Fitting | |||||||||
10-32 | 1.4 | 158° | 1/4" | 3/8" | Air | EPDM Rubber | 3 | 0000000 | 000000 |
Threaded Metric Male | |||||||||
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 | 000000 |
Lockable Breather Vents with Cap
Secure access to vented openings in pipe and tanks—the cap can be locked to prevent tampering. These breather vents allow you to add a filling port to your hydraulic tank while protecting against excess pressure and vacuum. Use them to stop debris from entering your tank. Breather vents mount on top of standard tank openings with included hardware. Padlock is not included.
For technical drawings and 3-D models, click on a part number.

Material | |||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Max. Temp., °F | Ht. | Dia. | For Use With | Cap | Screen | For Max. Padlock Shackle Dia. | Each | |
NPT Male | |||||||||
2 | 200° | 4 1/2" | 5 5/8" | Air, Oil, Water | Aluminum | Stainless Steel | 3/8" | 0000000 | 000000 |
Diesel Fuel Tank Caps

Often used with trailers, compressors, and other equipment tanks, these caps meet Department of Transportation requirements. Caps have fusible plugs that will melt when the outside environment reaches their opening temperature.
Cap with vent will automatically open when the internal pressure reaches between 6.5 psi to 8.5 psi to relieve pressure.
Chain Lg. | Bail Lg. | Seal Material | Pipe Size | Gender | Opening Temp., °F | Specifications Met | Message | Each | |
Aluminum | |||||||||
---|---|---|---|---|---|---|---|---|---|
Cap with Vent | |||||||||
6" | 4 1/2" | Buna-N Rubber | 2 NPSH | Female | 255° | D.O.T. 49 CFR 393.67 | Diesel Fuel Only | 000000 | 000000 |