Leser Safety Valve

Technical specifications Type 441 DIN

Nominal Diameter at Inlet

DN 20 – DN 200 | 3/4″ – 8″

Actual Orifice Diameter d₀

18 – 165 mm | 0.71 – 6.5 in

Actual Orifice Area A₀

254 – 21382 mm² | 0.394 – 33.142 in²

Pressure

0.1 – 40 bar | 1.5 – 580 psig

Flange Rating Inlet

PN 16 – PN 40 | CL150 – CL300

Temperature (in accordance with DIN EN)

-270 to 450 °C | -454 to 842 °F

Temperatur (nach ASME)

-268 to 538 °C | -450 to 1000 °F

Body Material

0.6025, 0.7043, 1.0619, 1.4408 | Cast iron, Ductile Gr. 60-40-18, SA 216 WCB, SA 351 CF8M

Valve Connection

Flange acc. to DIN EN 1092-1 or acc. to ASME B 16.5 or acc. to JIS 2220

Bellows Material (optional)

Stainless steel and elastomer

Load Type

Spring loaded

Approvals

PED/DIN EN ISO 4126-1, PED/AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC