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Si 830

High flow safety valves

High Flow Safety Relief Valves designed acc. to API Standard 526 manufactured to ASME VIII and PED.


  • Full nozzle design.
  • Orifice sizes D – T are in full compliance to API Standard 526.
  • Additional orifice sizes V and W for very large flow application.
  • Capacities certified by the NationalBoard of Boiler and Pressure Vessel Inspectors.
  • Large range of materials and design options meeting all specifications.
  • One-trim design for gas, vapour and liquids.
  • Long-life cycle bellows design.
  • Positive lift stop at full capacity.
  • Optimized disc bearing for high seat tightness.
  • Nozzle ring always set to lowest position because valve designed to operate optimum without ring adjustment.

Product Specifications

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