Eska ERG-S Series Gas Pressure Regulator without OPSO


Eska ERG-S Series Double Stage Gas Pressure Regulator without OPSO is used on gas line to reduce inlet pressure to desired outlet pressure. It is suitable for both commercial and domestic usage where can be directly installed to gas meters with high operational reliability and accurate outlet pressure accuracy.

Simple installation procedure. Due to different inlet and outlet connection range, ERG-S Series can be used along with pipe diameter from DN15 to DN50 with different thread standards as well as BSP, BSPT, NPT, NPP. The modular concept of ERG-S and wide range availability of inlet and outlet connections allow to match particular customer requirements. The regulators are manufactured according to Ped Directive 2014/68/EU. The functional tests are performed according to EN334.

Eska ERG-S Series Features

  • For medium pressure domestic or commercial second group gas lines.
  • Optional metallic mesh filter for easy change and guarantees longer operation life of regulator.
  • Outlet pressure tolerance is +%10 (AC10) up +- %5 (AC5)
  • Lock-up pressure tolerance is +%20 (SG20) up to 100 mbar outlet pressure, more than 100 mbar outlet pressure SG20 and SG10 possible.
  • Up to 6 bar inlet pressure.
    18 – 500 mbar outlet pressure range with interchangeable springs


  • Incorporated Under Pressure Shut Off Valve.
  • Internal Relief Valve


  • Medium Natural Gas, LPG and Non-Corrosive Gases
  • Operating temperature -20… + 60°C (optional : -40… +60°C
  • Assembly Vertical and Horizontal Position
  • Maximum inlet pressure 6 bar
  • Minimum inlet pressure Depending on customer request can start as low as 0,1 bar
  • Outlet pressure range 18 to 500 mbar
  • Filter Included
  • Design
    • The ERG-S Series pressure regulator body may consists of:
      • Valve housing
      • Connections
      • Filter
      • Ventilation console
      • Outlet pressure test point
      • Integrated security valves (UPSO / Relief)
  • Materials
    • Body and covers Aluminum according to EN1706 standard.
    • Rubber components are Nitril Rubber comply to EN 549 .
    • Brass materials are suitable according to EN12164 – EN12165 Standard.
    • Filter material is metallic mesh filter.


Download Data Sheet: ERG-S Double Stage Gas Pressure Regulator without OPSO

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