LESER GmbH & Co. KG
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- Leser - Model Type 431, 433 - Modulate ...
Leser - Model Type 431, 433 -Modulate Action Safety Valves
Standard Safety valves with rolled-in seat, DIN and ASME flange connections. Delivery times: 2 weeks for standard configurations. Gray cast iron, nodular cast iron, carbon steel and stainless steel castings.
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All industries up to 40 barg
- Thermal expansion
- Pump fuses
- Variable mass flow with O-ring damper
- Back pressures up to PN 40
- Set pressure(according to CE): 0.2 - 40 bar | 2.9 - 580.15 psig
- Temperature(according to CE): -270 to 450 °C | -454 to 842 °F
- Capacity: orifice C- to N-
- Connections DIN EN 1092: DN 15 - DN 150
- Connections ASME B16.5: NPS 1/2 - NPS 6
- Flange class Inlet DIN EN 1092: PN 16 - PN 40
- Flange class Inlet ASME B16.5: Class 150 - Class 300
- Body material: 0.6025, 0.7043, 1.0619, 1.4408 | Gr. 60-40-18, SA 216 WCB, SA 351 CF8M
- Narrowest flow diameter d0: 12 - 92 mm | 0.47 - 3.62 in
- Narrowest flow area A0: 113 - 6648 mm² | 0.175 - 10.3 in²
- Bellows material (optional): Stainless steel and elastomer
- Seat gasket: Metallic, Sealing plate , soft sealing