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australia:gas_fittings

gas fittings for camping

Introduction

  • “Universal LPG appliances” can use butane, propane or a mixture of both
  • other appliances are designed to use only ONE of propane, butane or natural gas

types of gas

  • LPG stands for Liquefied Petroleum Gas and this may refer to propane (as it usually is in Australia), butane or a mixture of both
  • n-butane has a boiling point of -0.5degC and at 21deg is stored in cylinders or cartridges at 215kPa
  • iso-butane has a boiling point of -11.7degC and at 21deg is stored in cylinders or cartridges at 310kPa
  • propane has a boiling point of -42degC and at 21deg is stored in cylinders or cartridges at 860kPa hence requires extra strong and heavy cylinders but is better than butane in sub-zero temperatures
  • natural gas is methane and appliances operate at much lower pressures than LPG (1.1kPa vs 2.75kPa)

LPG gas cylinder fittings

  • whilst you can use appliances with different fitting to the bottle via adapters such as 3/8”BSP–POL, these add extra connections and thus extra risk of gas leaks - so check the fitting before use
  • you cannot in any instance join two gas hoses together as this can be dangerous
  • you cannot lengthen the hose of a high-pressure stove but you can lengthen the hose of a low-pressure stove
  • if the appliance came with a gas regulator (usually pre-set to 2.8kPa) then this should be used and this creates a low pressure system - no regulator is a high pressure system
    • caravans often have this regulator at the gas cylinder and thus you don't need to add extra regulators into the system for each appliance connected to the gas line - these must be fitted by licensed gas fitters.
  • some principles regarding LPG gas cylinders
    • it is not legal to store an LPG gas inside the car except for a short trip to and from a refill
      • it may leak creating an explosion risk within an enclosed car cabin or in a roof pod
    • it is not legal to refill a cylinder that is more than 10yrs old you less it is re-certified
    • they must be stored upright and out of direct sun
    • avoid storing them on your vehicle in an impact zone - most transport them on the roof rack - perhaps tied down in a milk crate - check your local regulations!
    • they are heavy a 1.25kg gas bottle actually weighs around 4kg when full
    • they are hard to judge how empty they are

horizontal female POL fitting

  • this is used on larger 4-9kg cylinders such as those at service stations, Swap'n'Go, etc

vertical male 3/8″ Left-Handed thread

  • this is used on smaller 1-4kg cylinders such as Companion brand cylinders

Primus gas cylinder thread

  • proprietary fitting used on Primus bottles that has an internal fitting that only allows gas to flow once the fitting is fully inserted into the cylinder

Australian QCC

  • a new fitting which will replace POL and improves safety

Propane or butane gas cartridges

  • BOM fitting cartridges
    • designed for BOM fittings on portable appliances
  • threaded puncture cartridges
    • eg. Jetboil JetPower (propane/isobutane mix)
    • eg. Companion butane Pro-Fuel cartridge
  • aerosol can style butane canisters
    • eg. Companion butane Pro-Fuel cartridge

appliance fittings

smaller ¼” BSP appliance fittings

  • these are used to ensure you use the correct hose eg. cast iron burners

BOM / CGA600 fittings

  • used to connect to BOM propane cartridges eg. Coleman
  • can be used with LPG cylinders via BOM to POL and BOM to 3/8″ LH adapters

G1/2 fitting

  • threaded brass pipe fitting for gas or water connections
  • external dimension of female is 1“
  • internal dimension of female is 25/32”

Quick Connect 3/8" SAE

  • designed for more rapid connect/disconnect
australia/gas_fittings.txt · Last modified: 2021/07/27 21:40 by gary1