LESER Modulate Action Safety Valve Type 431 433 PN 160

Modulate ActionType 431, 433 PN 160

Standard Safety valves with screwed seat, DIN and ASME flange connections. Technical data

  • Delivery times: 2 weeks for standard configurations
  • Carbon steel and stainless steel casting
  • CE_Europa_schwarz
  • VdTUEV
  • ASME_UV_USA_schwarz
  • CRN_Kanada_schwarz
  • EAC_Russland_schwarz
  • TS_Logo_China_schwarz
  • UKCA_Grossbritanien_schwarz
  • Bureau-Veritas
  • DNV
  • RINA-1861
  • Vogel
  • LloydsRegister
  • CCS_Logo_China_SW
  • Korean-Register
  • Class-NK

Applications & Industries

All industries up to 160 barg

The optimal solution for:

  • Thermal expansion
  • Low mass flows to be discharged
  • Pump fuses
  • Back pressures up to PN 40
BASELL LANXESS EDL

Technical Features Type 431, 433 PN 160

Set pressure (according to CE) 0.3 - 160 bar | 4.35 - 2,320.6 psig
Temperature (according to CE) -270 to 450 °C | -454 to 842 °F
Capacity orifice C-
Connections DIN EN 1092 DN 15
Connections ASME B16.5 NPS 1/2
Flange class Inlet DIN EN 1092 PN 63 - PN 160
Flange class Inlet ASME B16.5 Class 300 - Class 600
Body material 1.0619, 1.4408 | SA 216 WCB, SA 351 CF8M
Narrowest flow diameter d₀ 12 mm | 0.47 in
Narrowest flow area A₀ 113 mm² | 0.175 in²
Bellows material (optional) Stainless steel
Seat gasket Metallic, soft sealing


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