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Butane regulator guide

At Calor we understand that connecting a gas bottle can be an area of confusion for people who are new to using LPG, so we’ve put a guide together to help you. This section of the guide shows you step-by-step how to connect 4.5kg, 7kg, 12kg and 15kg Butane gas bottles to your appliance, with details on how to remove and replace regulators.

How to connect a 4.5kg Butane gas bottle

This gas bottle takes a regulator that screws on to the valve outlet—both have a connecting nut that features a black sealing washer.

  • Check the valve hand wheel is off by turning it clockwise and then take off the protective black cap (keep it for future use)
  • Check the black sealing washer on the regulator for damage before connecting—replace it if it’s faulty
  • Fit the connecting nut (left hand thread) to the bottle using a suitable spanner; tighten it firmly, but don’t over-tighten it as this can damage the washer. When you need to use gas, turn the valve hand wheel anti-clockwise

How to disconnect a 4.5kg Butane gas bottle

  • Make sure you do not disconnect the regulator (or connecting nut) with the cylinder valve open. Turn the valve hand wheel off (clockwise rotation) and wait until the burner and pilot lights have gone out. If the flame doesn’t go out, leave the appliance alight and contact the Calor Gas emergency service number on 08457 444 999
  • Use a suitable spanner when you disconnect the regulator (left hand thread), then screw the protective black cap back on to the cylinder valve outlet

How to connect 7kg, 12kg and 15kg Butane gas bottles

These cylinders have a 21mm valve and should only be used with 21mm regulators. To connect, just turn the orange safety cap so that the arrow is pointing to the gap in the shroud, then remove the orange cap by pulling the lanyard out, and then upwards. Avoid using tools for this, and just leave the cap hanging.

  • Check that the black sealing washer is fitted inside the cylinder valve
  • Make sure the regulator switch is in the disconnect position (3 o’clock position)
  • Fit the 21mm regulator as the manufacturer’s instructions suggest. When you need to use gas, turn the switch anticlockwise to the ‘on’ position

IMPORTANT

If the regulator on/off switch gets stuck when turning the supply on, it means the regulator has not been connected correctly. If this happens, disconnect it and follow the instructions to reconnect it.

How to disconnect 7kg, 12kg and 15kg Butane gas bottles

  • Turn the regulator switch clockwise to the off position. If the flame doesn’t go out, leave the appliance alight and contact the Calor Gas Emergency Service number on 08457 444 999
  • Replace the orange safety cap onto the empty bottle valve

If you’re having any difficulty or would like to talk through the process, please call our technical help number on 01926 318 497 and a member of our team will be happy to help.