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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 |
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 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Opening Dia. | Ht. | For Use With | Cap | Screen | Mount Type | Bolts Included | Removes Particle Size Down To, microns | For Max. Padlock Shackle Dia. | Each | |
2 1/8" | 5 1/8" | Air, Oil | Steel | 304 Stainless Steel | Flange | Yes | 10 | 3/8" | 0000000 | 000000 |
2 1/8" | 5 1/8" | Air, Oil | Steel | 304 Stainless Steel | Flange | Yes | 40 | 3/8" | 0000000 | 00000 |
2 1/8" | 6 1/8" | Air, Oil | Steel | Nylon Plastic | Flange | Yes | 10 | 3/8" | 0000000 | 00000 |
2 1/8" | 6 1/8" | Air, Oil | Steel | Nylon Plastic | Flange | Yes | 40 | 3/8" | 0000000 | 00000 |