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318-11 - 3-1/8 Inch 11 TPI Oxygen Cylinder Valve Safety Cap

Packaging: 1 of each
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$15.00/ea $7.05/1 of each only $7.05/eaSave 53%

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SKU: CYLCAP-OXY Categories: ,

OVERVIEW

Essential Valve Protection for Oxygen Cylinders

When it comes to handling high-pressure gas cylinders, safety is the absolute priority. This Cylinder Cap for Oxygen Cylinders (318-11) is designed to provide robust protection for the most vulnerable part of your tank: the valve. Whether you are transporting cylinders to a job site or storing them in your shop, a missing cap is a major safety violation and a hazard. This cap features the standard 3-1/8" x 11 threads per inch (TPI), making it compatible with the vast majority of standard high-pressure oxygen and industrial gas cylinders used in welding and fabrication.

Constructed from heavy-duty steel, this cap is built to withstand the rough conditions of industrial environments. It acts as a steel helmet for your cylinder valve, ensuring that if a tank is accidentally knocked over, the valve won't shear off—a scenario that can turn a cylinder into a dangerous projectile. The "FIN" designation suggests a fine thread profile, ensuring a smooth but secure engagement with the cylinder neck ring. Don't risk fines or accidents; ensure every cylinder in your fleet is capped when not in use.

Why This Cap is a Must-Have

Beyond simple impact protection, using a proper cylinder cap is often a legal requirement under Department of Transportation (DOT) regulations for transporting hazardous materials. This specific model (SKU 318-11) is tailored for the common neck ring size found on oxygen tanks, ensuring you don't have to struggle with mismatched threads. It spins on easily and stays put, keeping dirt and debris away from the valve assembly while providing maximum impact resistance.

Additional Information
Packaging Description:1 of each, 1 per each
Thread Size:3-1/8" - 11
Material:Steel
Application:High Pressure Gas Cylinders, Oxygen Cylinders
----- new values below ----
Packaging Description:1 per each
Thread Size:3-1/8" - 11
Material:Steel
Application:Oxygen Cylinders, High Pressure Gas Cylinders

INCLUDED

  • (1) Cylinder Cap 3-1/8"-11

APPLICATIONS

  • Transporting high-pressure oxygen cylinders
  • Long-term storage of welding gas tanks
  • Industrial gas distribution
  • Mobile welding rigs and construction sites
  • DOT compliance for hazardous material transport

FAQ

This cap features a 3-1/8 inch diameter with 11 threads per inch (3-1/8"-11), which is a standard size for many high-pressure gas cylinders.

Generally, no. Acetylene cylinders often use different neck ring sizes or coarse threads. This cap is designed for standard high-pressure cylinders like oxygen, argon, or nitrogen that use the 3-1/8"-11 ring.

Cylinder caps protect the valve from shearing off if the cylinder falls. A sheared valve can turn a pressurized cylinder into a dangerous projectile. They are also required by DOT regulations during transport.

It is made of heavy-duty steel to provide maximum impact protection.

It fits most standard industrial size oxygen cylinders (like sizes K, T, S) that have a threaded neck ring. It does not fit small medical cylinders or cylinders without neck rings.

No, the regulator must be removed before the cap can be installed. The cap is for storage and transport only.

This is likely a manufacturer-specific part code or reference to the fine thread specification, but the critical dimension is the 3-1/8"-11 thread.

Yes, when properly installed on a compatible cylinder, it meets DOT requirements for valve protection during transport.