ELGAS Knowledge Hub

How to connect and disconnect your appliance to LPG supply

30 Aug, 2023 | Residential LPG

In this article:

Quick bayonet guide to connect and disconnect your LPG appliance's gas supply
connecting and disconnecting LPG appliances

A gas bayonet plays the main role in disconnecting and connecting LPG appliance to gas supply. The bayonet outlet is plumbed into the gas supply from your existing LPG cylinder and is low-pressure, making LPG safe to use for homes and businesses.

Gas bayonet fitting – How it works in disconnecting and connecting LPG appliances

A female gas bayonet fitting  is generally floor or wall-mounted. These BSP thread fittings provide a quick connection from the gas supply to your indoor gas appliances. Using LPG for appliances such as a portable gas bayonet heater is generally more economical than resistance electric heating. Here’s how bayonets work

  •  A male gas bayonet hose fitting can connect your gas appliance, such as a gas bayonet heater, to a fixed female gas bayonet wall socket fitting that is attached to the gas supply.
  • The male gas heater bayonet fitting is attached to the end of the gas bayonet braided hose.
  • The female gas bayonet wall socket fitting is connected to the gas supply line and is affixed to the wall or floor.
  • Use the male gas bayonet hose make the gas bayonet fitting connection by pushing in and twisting clockwise to lock it in place.
  • To remove a gas bayonet, push it in slightly, turn it anti-clockwise and then pull the male gas bayonet fitting out.

Role of Male gas bayonet fitting in disconnecting and connecting LPG appliances

The male bayonet fitting is affixed to the end of the stainless-steel braided bayonet hose, which is attached to the gas heater. It has two push-and-twist slots for engaging the two locking lugs on the female gas bayonet wall socket fitting. It also has a protrusion that pushes on and opens the automatic gas valve while inserting or interlinking the male gas bayonet fitting. The on/off gas valve is in off position at the time of disconnecting the male fitting.

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Gas bayonet fitting installation best practices

Please follow gas fitting bayonet best practices to ensure safe disconnecting and connecting of LPG appliances. Use a licensed gas fitter to install your gas bayonet fitting. Install your female gas bayonet fitting  either through a wall or the floor and connect it to the gas cylinder piping. The male gas bayonet fitting installation simply involves attaching it to the end of a gas bayonet hose, which is typically done by the hose manufacturer.  Here are some of the various components to complete the job of connecting LPG appliances heaters. 

  • Bayonet hose
  • Bayonet socket: angled or straight in brass, chrome or stainless steel
  • Bayonet adaptor (male)
  • Bayonet fitting (male)
  • Wall bayonet
  • Mounting bracket

Inspect & clean gas bayonet fittings.

It is important to clean gas bayonet fittings and ensure they are dust and debri free before connecting LPG appliances to them. Grit or debris can damage your appliance and cause dangerous gas leaks. You should periodically inspect the gas bayonet hose for any damage or degradation. Call your gas fitter to check for repairs.

Disconnecting the gas heater or cooker

To disconnect a gas heater bayonet fitting just reverse the process used in connection. For gas bayonet fitting removal, you push the male fitting in slightly and turn it anti-clockwise to disengage the locking lugs and then pull the male fitting out. There may be a small whiff of gas during gas bayonet fitting removal which is normal.

If you continue to smell gas

If you detect a continuous or ongoing leak, please turn off the gas and disconnect the gas heater. If you have an ongoing problem, call your gas fitter. Never attempt your own gas repairs or allow an unqualified person to try fix your LPG appliance

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