Automatic LNG cylinder changeover for continuous flow

The automatic cylinder changeover is a genius invention for operations and appliances that require and rely on a continuous flow of gas. Once the 'service' cylinder has been emptied, the changeover switches automatically to the 'reserve' cylinder to prevent interruptions in the supply. They are used in compressed gas manifold systems and where two or more cylinders are present

product image of a automatic changeover

Product description

The changeover works on differential pressure with the automatic switch between cylinders happening when pressure drops below a pre-set minimal. A visual indicator shows the release of the pressure switch and the changeover 'reserve' cylinder.

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Body: Brass
Bonnet: Brass
Seat disc: Viton
Diaphragm: Aluminium
Bonnet spring: Steel
Back-cap spring: Stainless steel

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Gas types: LNG (Liquefied Natural Gas) and cryogenics
Connections: Thread
Type: NPT (CGA)
Pressure range: Max. 2.1 to 202 bar (30.4 to 3,000 psi)
Sizes and range: 1/4"
Series available: M2523HP Series
Standards: PED, ASME, CRN

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application. 

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  • Nickle plated
  • 100% factory tested
  • Cleaned for oxygen service per CGA G-4.1
  • Porous bronze filter to limit particles from entering
  • Positive shut-off during flow reversal
  • Provided with mounting bracket and pressure adjustment wrench
  • Factory set at 50 PSI on service side
  • Pressure gauge

Did you know?

ProSupply also offers CGA Connection: 320, 326, 350, 540, 580 and 590

Automatic changeovers are also available for LPG and CO2 service with different materials

Get in touch!

Whether you already know what you need, or you would like the opinion of an expert, we are always ready to help you out.