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LeserModel Type 437 -Compact Performance for Safety Valves

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Safety valves for protection of small capacities. Matching selection of threaded and flanged connections with a delivery time of 2 weeks.

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The optimal solution for:

  • Compressors and pumps
  • Technical gases and CO2 plants
  • LPG/LNG storage tanks, transporters (ship, truck, etc.)
  • Pressure vessels and piping systems carrying vapors, gases and fluids
  • Refrigeration and oxygen applications
  • Thermal expansion
  • Set pressure(according to ASME): 0.1 - 365 bar | 1.5 - 5,294 psig
  • Set pressure(according to CE): 0.1 - 365 bar | 1.5 - 5,294 psig
  • Temperature(according to ASME): -270 to 280 °C | -454 to 536 °F
  • Temperature(according to CE): -268 to 280 °C | -450 to 536 °F
  • Capacity: B+ to C
  • Connections DIN EN 1092: G/R: NPS 3/8 to NPS 1 | DN 15 - DN 25
  • Connections ASME B16.5: NPT: NPS 1/2 to NPS 1 | NPS 1/2 to NPS 1
  • Flange class Inlet DIN EN 1092: PN 40 - PN 400
  • Flange class Inlet ASME B16.5: Class 150 - Class 2500
  • Body material: 1.4104, 1.4404 | SA 479 430, SA 479 316L
  • Narrowest flow diameter d0: 6 - 10 mm | 0.236 - 0.394 in
  • Narrowest flow area A0: 28.3 - 78.5 mm² | 0.044 - 0.122 in²
  • Seat gasket: Metallic