COMPACT PERFORMANCE
TYPE 439
Industries
Chemical >
Pharmaceutical >
Food and Beverage >
Ship Building >
Approvals
Type 439 LESER Compact Performance pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
UV
Technical Specifications for Type 439
Nominal Diameter Inlet - Thread
G 3/8 - 1 | NPT 1/2" - 1"
Nominal Diameter Inlet - Flange
DN 15 - DN 25 | 1/2" - 1"
Actual Orifice Diameter dâ‚€
10 mm | 0.394 in
Actual Orifice Area Aâ‚€
78.5 mm² | 0.122 in²
Pressure
0.1 - 16 bar | 1.5 - 232 psig
Flange Rating Inlet
PN 40 - PN 400 | CL150 - CL2500
Temperature (in accordance with DIN EN)
-45 to 150 °C | -49 to 302 °F
Temperatur (nach ASME)
-45 to 150 °C | -49 to 302 °F
Material Outlet Body
1.4104, 1.4404 | SA 479 430, SA 479 316L
Material inlet body
1.4104, 1.4404 | SA 479 430, SA 479 316L
Valve Connection
Thread acc. to DIN ISO 228-1, DIN ISO 7-1 / BS 21 oder ASME B1.20.1, Flange acc. to DIN EN 1092-1 or ASME B16.5
Bellows Material (optional)
No bellows
Load Type
Spring loaded
Approvals
PED/ DIN EN ISO 4126-1, AD 2000-Merkblatt A2, ASME Section XIII certified for Section VIII Div. 1 service, CRN, AQSIQ, EAC
Classification societies
LR, RINA, DNV GL, BV
Downloads
Access all the necessary documents and detailed information for pressure relief valves in our download area.
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