Flange safety valve 431

proportional

Safety valves for low pressure dynamics -Low media loss when opening -Ideal for thermal expansion -Wide range of options available -Constant back pressures up to 40 bar / 580 psig -Excellent price-performance ratio -LESER Nanotightness: Exceeds the tightness requirements of API 527 by 50% Technical specifications Type 431, 433 Actual Orifice Diameter d₀ 12 - 92 mm | 0.47 - 3.62 in Actual Orifice Area A₀ 113 - 6648 mm² | 0.175 - 10.3 in² Flange Rating Inlet PN 16 - PN 40 | CL150 - CL300 Temperature (in accordance with DIN EN) -270 to 450 °C | -454 to 842 °F Body Material 0.6025, 0.7043, 1.0619, 1.4408 V alve Connection Flange acc. to DIN EN 1092 or acc. to ASME B16.5 Bellows Material (optional) Stainless steel and elastomer Load Type Spring loaded Approvals PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, AQSIQ, EAC Classification societies LR, RINA, DNV GL, BV, ABS Specials Units converted; No approvals acc. to ASME