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product page - Type 459 LESER compact performance pressure relief valves

COMPACT PERFORMANCE

TYPE 459 HDD

Type 459 LESER compact performance pressure relief valves
Type 459 LESER compact performance pressure relief valves
Type 459 LESER compact performance pressure relief valves

Industries

Approvals

Type 459 HDD LESER Compact Performance pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:

ce-mark logo

UV

asme-uv logo
EAC logo

Technical Specifications for Type 459 HDD

Nominal Diameter Inlet - Thread

1/2" - 1“ | 1/2" - 1“

Nominal Diameter Inlet - Flange

DN 15 - DN 25 | 1/2" - 1"

Actual Orifice Diameter d₀

6 - 9 mm | 0.236 - 0.354 in

Actual Orifice Area A₀

28.3 - 63.6 mm² | 0.044 - 0.099 in²

Pressure

250.01 - 850 bar | 3626 - 12328 psig

Flange Rating Inlet

PN 320 - PN 400 | CL1500 - CL2500

Temperature (in accordance with DIN EN)

-273 to 400 °C | -459 to 752 °F

Temperatur (nach ASME)

-196 to 450 °C | -321 to 82 °F

Material Outlet Body

1.4408 | SA 351 CF8M
 

Material inlet body

1.4404 stellited | SA 479 316L stellited

Valve Connection

Thread acc. to DIN ISO 228-1, ISO 7-1 / BS 21 or ASME B1.20.1, Flange acc. to DIN EN 1092-1 or ASME B16.5

Bellows Material (optional)

Stainless steel (only for d09)

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, EAC, AQSIQ, SAMR

Classification societies

LR, DNV GL, BV, ABS

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Downloads

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

LESER compact performance product brochure
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