HIGH PERFORMANCE
441, 442 FULL NOZZLE DIN
Industries
Approvals
Type 441, 442 Full nozzle DIN LESER High Performance pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
UV
Technical Specifications for Type 441, 442 Full nozzle DIN
Nominal Diameter Inlet - Thread
DN 25 - DN 50 | 1" - 2"
Nominal Diameter Inlet - Flange
23 - 46 mm | 0.91 - 1.81 in
Actual Orifice Area Aâ‚€
416 - 1662 mm² | 0.644 - 2.576 in²
Pressure
0.1 - 40 bar | 1.5 - 580 psig
Flange Rating Inlet
PN 16 - PN 40 | CL150 - CL300
Temperature (in accordance with DIN EN)
-270 to 450 °C | -454 to 842 °F
Temperature (nach ASME)
-268 to 538 °C | -450 to 1000 °F
Body Mateial
1.0619, 1.4408 | SA 216 WCB, SA 351 CF8M
Valve Connection
Flange acc. to DIN EN 1092-1 or acc. to ASME B 16.5 or acc. to JIS 2220
Bellows Material (optional)
Stainless steel and elastomer
Load Type
Spring loaded
Approvals
PED/DIN EN ISO 4126-1, PED/AD 2000-Merkblatt A2, ASME Section XIII certified for Section VIII Div. 1 service, CRN, AQSIQ, EAC
Classification societies
LR, RINA, DNV GL, BV, ABS
Downloads
Access all the necessary documents and detailed information for pressure relief valves in our download area.
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