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LESER Type 441/442 DIN High Performance Safety Valve

LESER Series 441/442 DIN High Performance Relief Valve

AirGasLiquidSteam
Protect your pressure equipment from dangerous overpressure. The LESER Series 441/442 is engineered for general industry applications, offering reliable overpressure protection with DIN flanged connections.
Inlet SizesDN 20 – DN 200
Pressure Ratings0.1 – 40 bar / PN 16 – PN 40
MaterialsCast iron, Ductile Gr. 60-40-18, SA 216 WCB, SA 351 CF8M
ApprovalsPED, EN ISO 4126-1, TÜV SV 100 and AD 2000-Merkblatt A2
ConnectionFlanged
  • Protection of chemical processes and equipment (e.g. distillation columns)
  • Heat exchangers
  • Low and medium pressure steam systems
  • Blowers and turbo compressors