MODULATE ACTION
TYPE 431 / 433
Industries
Approvals
Type 431 / 433 LESER Modulate Action pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
Technical Specifications for Type 431, 433
Nominal Diameter at Inlet
DN 15 - DN 150 | 1/2" - 6"
Actual Orifice Diameter dâ‚€
12 - 92 mm | 0.47 - 3.62 in
Actual Orifice Area Aâ‚€
113 - 6648 mm² | 0.175 - 10.3 in²
Pressure
0.2 - 40 bar | 2.9 - 580.15 psig
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
Valve 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
Downloads
Access all the necessary documents and detailed information for pressure relief valves in our download area.
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