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The S300 in-line over pressure slam shut (OPSS) protects gas installations, especially polyethylene pipework, from dangerous overpressure conditions and can be fitted either before or after the first stage regulator (see over the page for installation diagrams). Versions are available with either internal or external impulse. When the pressure increases above a predetermined value the trigger mechanism actuates and the valve shuts off the gas supply. Resetting can only be achieved manually. The S300 can be used with natural, liquefied petroleum and manufactured gases and can be mounted in any orientation.

  • Size: ¾” and 1”
  • Inlet pressure up to 20 bar with external impulse
  • Inlet pressure up to 2 bar with internal impulse
  • Trip pressure 18 mbar - 4 bar
  • Temperature range -20 °C to +70 °C

Elster GmbH

Elster GmbH offers a wide range of measuring devices for measuring gas volume and flow rates. We can offer volume gas meters such as rotary and diaphragm gas meters, turbine and ultrasonic gas meters. Gas volume correctors and electronic devices for data transfer are also part of the production program. Elster GmbH is also able to provide its customers with the delivery of complete measurement systems for accounting measurement at high pressure in the area of transport and production of natural gas. All devices meet the highest standards in terms of quality, safety and fulfillment of all metrological requirements.

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