What type of gas regulator

The dual stage regulator has an advantage that even when cylinder pressure is depleted due to gas consumption the second stage delivers constant pressure regardless of the inlet pressure.

Two stage regulators are resistant to creep ,i. The Compressed Gas Association CGA has introduced a foolproof coding system that prevents accidental mix ups of cylinders and regulators as all regulators cannot be used on all cylinders.

Each cylinder and regulator is designated by a CGA number code and only cylinders with compatible numbers can be used together. The CGA codes of some common gases are :. Flammable gases such as hydrogen have brass fittings and have reverse threads,i. A reverse thread nut can be identified as it has a line inscribed around its circumference. In case acetylene gas is to be used ensure that copper tubing is not used and also any alloy in regulator construction that has copper or silver as these can result in explosive mixture formation.

The regulator should be made of stainless steel or monel. Install a suck- back trap after the regulator so prevent backflow of corrosive gases into the regulator and cylinder is avoided.

Contamination of high purity gases can take place due to presence of moisture, oxygen or other gaseous vapours. Such contaminants can enter the system when the regulator is removed from the cylinder or there are leaks and faulty seals.

It is advisable to use stainless steel diaphragm regulators instead of elastomer diaphragm regulators because they do not adsorb and release contaminants. Gas chromatography uses mainly three types of gases: Carrier gases: nitrogen, hydrogen or helium Fuel: hydrogen Oxidant: zero air Gases used for gas chromatography analysis….

They are available in either high pressure or low pressure versions. Clip-on gas regulators sit on top of the cylinder and are one of the most popular types, with many different designs on the market. Versions are available to use with either propane or butane gas. Bolt-on regulators are made only to fit small Calor 4.

They are screwed onto the cylinder valve through a connecting nut. Campingaz regulators originated in France and are one of the most widely used types in mainland Europe. They are also popular in the UK. Changeover gas regulators are used in many situations where more than one cylinder is required. Please enter your email address. How was your experience?

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To find the correct regulator for an existing appliance, please check the appliance data sheet or examine the appliance itself. There should be a data plate or instruction manual stating the required output and inlet pressure.

If you have this information, then please feel free to contact us and we will point you in the right direction.

Gas Equipment Direct - Blog Posts. Standard Propane Bottles 3.