What Is The Sealing Rubber (O-Ring) In A Gas Cylinder Bottle Valve Meant For?

Valve on the gas cylinder bottle allows the gas to pass through the regulator to the appliance being fuelled. When the regulator is turned to the "ON" position, the supply of gas to the gas burner is activated. The pin inside goes down and releases the gas and the regulator works as a chamber room where it gets released. Now, there is only one way for the gas to flow through the hose pipe and it reaches the stove. 

An "O" ring made of rubber inserted in side the neck valve, is used as cushioned seal to avoid iron to iron contact and it's renewed every time the cylinder bottle is refilled. The seal rubber (O-ring) helps reduce metal to metal friction of valve and regulator. It also helps tighten regulator on the gas cylinder valve. When ordering for gas cylinder bottles, check whether sealing ring (O-rubber) is in place inside the cylinder valve by feeling the same with the help of your little finger tip. Do not attempt to use cylinder bottles of the O-ring rubber is missing. Put back the safety cap and contact your distributor for replacement of gas cylinder, as this is very dangerous. 

On rare occasions, a gas cylinder bottle may not refill if the sealing ring is not place properly, causing difficulty in coupling. This follows escape of gas with a hissing sound.

TYPES OF SEALING O-RING RUBBER

There are two types of sealing ring rubber. We have the "COVER-UP" and the "NON COVER-UP". 

The COVER-UP sealing rubber is a full blocked rubber. This type of rubber is suitable the 3kg, 5kg, 6kg, 10kg gas cylinder bottles, as it prevent gas from escaping in any way. It helps in a total blockage and cover up of the cylinder valve. Note that the cover-up sealing rubber can't fix in the 12.5kg has cylinder bottle.

READ MORE: How To Know The LPG Worth Of Gas Cylinder Bottles And The Level Of Gas It Will Hold

While the NON COVER-UP sealing ring rubber is the one commonly found and used by customers. It is spacious and easily replaced. Very suitable for the 12.5kg gas cylinders. Fortunately, the non cover-up sealing rubber can also fix-in the 3kg, 6kg, 5kg and 10kg cylinder bottles perfectly. However, one disadvantage is that, it gets easily damaged and expands with usage; which is why it must be renewed every time a gas cylinder is refilled.

Always get an approved quality rubber tubes and LPG regulators from authorized distributors only. Make sure the gas cylinder has been delivered with the company seal and safety cap intact. If you are not sure about the usage, please ask the delivery person for a demonstration.