COMPACT PERFORMANCE
TYPE 459
Industries
Chemical >
Pharmaceutical >
Food and Beverage >
Ship Building >
Approvals
Type 459 LESER Compact Performance safety valves are designed, marked, produced and approved according to the requirements of the following regulations:
UV
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 dâ‚€
9 - 17.5 mm | 0.354 - 0.689 in
Actual Orifice Area Aâ‚€
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
Downloads
Access all the necessary documents and detailed information for pressure relief valves in our download area.
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