LESER Compact Performance Safety Valve Type439
LESER Compact Performance Safety Valve Type 439

Compact Performance

Type 439

Safety valve with vulcanized soft seal disc

Approvals

LESER Compact Performance safety valves of Type 439 are designed, marked, produced and approved according to the requirements of the following regulations:

  • LESER CE Approvel
  • LESER ASME Approvel
  • LESER EAC Approvel
  • LESER Chinese TS Approvel

Technical specifications 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 d₀
10 mm | 0.394 in
Actual Orifice Area A₀
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 Sec. VIII Div. 1, CRN, AQSIQ, EAC
Classification societies
LR, RINA, DNV GL, BV
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Compact Performance Catalogue

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