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Product Page - Type 439 LESER Compact Performance Pressure Relief Valve

COMPACT PERFORMANCE

TYPE 439

Type 439 LESER Compact Performance Pressure Relief Valve
Type 439 LESER Compact Performance Pressure Relief Valve

Industries

Approvals

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

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UV

asme-uv logo
EAC Logo

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 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 Section XIII certified for Section VIII Div. 1 service, CRN, AQSIQ, EAC

Classification societies

LR, RINA, DNV GL, BV

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Downloads

Access all the necessary documents and detailed information for pressure relief valves in our download area.

compact performance catalogue
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