What is the purpose of cylinder cap?

Protect the valve with the cylinder cap to prevent the sudden release of gas under high pressure. The release of pressurized gas can cause the cylinder to become a projectile.

What is a valve protection cap?

A valve protection cap is securely fixed over the compressed gas valve during handling, transportation, and storage. We offer specialty designs that allow easy access to the valve handle without having to remove the protective cap and without having to replace the regulators each time.

When should a shielding gas cylinder be capped?

When cylinders are transported by powered vehicles, they shall be secured in a vertical position. Valve protection caps shall not be used for lifting cylinders from one vertical position to another. Bars shall not be used under valves or valve protection caps to pry cylinders loose when frozen.

What should be done before the cylinder valve protection caps are removed?

To close the cylinder valves, remove the regulator and replace the valve protection cap and hand tight before moving a cylinder. Move cylinders with appropriate trolleys and secure the cylinders in an upright position.

How are some cylinders protected from over pressurization?

Cylinder valves and security caps Some cylinders have a security cap over the cylinder valve indicating that they have been filled and checked. Immediately prior to use, this cap may be removed by rotating the hexagon nut in either direction using the regulator spanner.

When compressed gas cylinders are in storage What important safety feature must be securely in place on the top of the cylinder?

To protect the valve during transportation, the cover cap should be screwed on hand tight and remain on until the cylinder is in place and ready for use. 2.

When moving a cylinder regulators must be removed and valve caps must be installed on the cylinder?

The standard states that before moving cylinders, the regulators must be removed and valve protection caps put on, unless “on a special carrier intended for this purpose.” In your scenario, the wheeled cart is a special carrier designed to safely support and move oxygen and acetylene tanks on the ground.

What is the pressure in a full cylinder of oxygen?

about 2000 psi
A full cylinder will read about 2000 psi (pounds per square inch).

Do small compressed gas cylinders need to be secured?

The Compressed Gas Association and NFPA 1 require that compressed gas cylinders be secured to prevent them from falling or being knocked over by securing them to a fixed object like a bench or wall, by use of a restraint such as a chain, strap, or bracket.

How do you store compressed gas cylinders?


  1. Secure cylinders upright with a chain or strap in a proper cylinder cart.
  2. Store cylinders at least 20 feet from combustible materials in a dry, ventilated place.
  3. Keep oxygen cylinders at least 20 feet from fuel gas cylinders.
  4. Ensure valves are completely closed and any protection devices are secured.

What is the safety device attached with compressed gas cylinders?

Safety- or Pressure-Relief Valves: These valves are usually a part of the cylinder. They are normally held closed by a spring. The force holding the valve closed is set according to the type of gas in the cylinder. The valve opens if the cylinder pressure exceeds the set safety limit.