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COMPACT PERFORMANCE

TYPE 459

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 LESER Compact Performance safety 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 459

Nominal Diameter Inlet - Thread

1/2" - 1 1/2" | 1/2" - 1 1/2"

Nominal Diameter Inlet - Flange

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

Actual Orifice Diameter d₀

9 - 17.5 mm | 0.354 - 0.689 in

Actual Orifice Area A₀

63.6 - 241 mm² | 0.099 - 0.374 in²

Pressure

0.2 - 250 bar | 2.9 - 3626 psig

Flange Rating Inlet

PN 40 - PN 400 | CL150 - CL2500

Temperature (in accordance with DIN EN)

-273 to 450 °C | -459 to 842 °F

Temperatur (nach ASME)

-196 to 450 °C | -321 to 842 °F

Material Outlet Body

1.0619, 1.4408, 0.7043 | SA 216 WCB, SA 351 CF8M, Duktil Gr. 60-40-18
 

Material inlet body

1.4104, 1.4404 | SA 479 430, SA 479 316L

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, elastomer and hastelloy

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, 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.

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