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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.
Locking Fill Caps for Drums


Prevent tampering with the contents of your drum while allowing access for filling.
For technical drawings and 3-D models, click on a part number.
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 |

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 |
Gas Tank Safety Caps

Protect the valve of high-pressure gas tanks. The cap fits tanks with and without a regulator.
For Use With Tank Style | Thread Size | Material | Specifications Met | Each | |
K, T | 3 1/8"-11 | Steel | D.O.T. Compliant 49 CFR 173.301, OSHA Compliant 29 CFR 1910.253 | 0000000 | 000000 |
Gas Tank Safety Collars

Use a collar to protect the valve of acetylene tanks. The collar fits tanks with and without a regulator.
For Use With Tank Style | Thread Size | Material | Specifications Met | Each | |
5 | 3 1/2"-11 | Steel | D.O.T. Compliant 49 CFR 173.301, OSHA Compliant 29 CFR 1910.253 | 0000000 | 000000 |
Gas Cylinder Lockouts
Prohibit access to the main valve on a gas cylinder. These lockouts secure with a padlock and lockout tag. They help you comply with OSHA 29 CFR 1910.147, which requires handles on pneumatic and hydraulic systems to be locked out during maintenance to prevent injuries.
Steel lockouts are stronger than plastic lockouts. They’re also powder coated for corrosion resistance.
Style C fit most high- and low-pressure gas cylinders, including D.O.T. cylinders. When you need to use your cylinder, you can leave these lockouts on—the cover swings up and out of the way when they’re unlocked. To lock out again, snap the cover back on.
For technical drawings and 3-D models, click on a part number.


Thread | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Type | Spacing | Direction | Gender | For Max. No. of Padlocks | For Max. Padlock Shackle Dia. | Overall Lg. | Temp. Range, ° F | Color | Includes | Specifications Met | Each | |
For Low Pressure Cylinders | |||||||||||||
C | UNC | Coarse | Right Hand | Female | 1 | 1/4" | 11" | Up to 200° | Yellow | Padlock, Three Keys | OSHA Compliant 29 CFR 1910.147 | 00000000 | 0000000 |
C | UNF | Fine | Right Hand | Female | 1 | 1/4" | 11" | Up to 200° | Yellow | Padlock, Three Keys | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
For High Pressure Cylinders | |||||||||||||
C | UNC | Coarse | Right Hand | Female | 1 | 1/4" | 11" | Up to 200° | Yellow | Padlock, Three Keys | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
C | UNF | Fine | Right Hand | Female | 1 | 1/4" | 11" | Up to 200° | Yellow | Padlock, Three Keys | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |