HIGH PERFORMANCE
TYPE 441 / 442 DIN
Industries
Approvals
Type 441, 442 DIN LESER High Performance pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
UV
Technical specifications Type 441, 442 DIN
Nominal Diameter Inlet - Thread
DN 20 - DN 200 | 3/4" - 8"
Nominal Diameter Inlet - Flange
18 - 165 mm | 0.71 - 6.5 in
Actual Orifice Area Aâ‚€
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
Temperature (nach ASME)
-268 to 538 °C | -450 to 1000 °F
Body Mateial
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 Section XIII certified for Section VIII Div. 1 service, CRN, AQSIQ, EAC
Classification societies
LR, RINA, DNV GL, BV, ABS
Downloads
Access all the necessary documents and detailed information for pressure relief valves in our download area.
CONTACT LESER UK
For ALL LESER Safety Valve enquiries In the United Kingdom - Contact LESER UK​
There are many ways to get in touch:
Complete our online enquiry form to quickly find the most suitable product. Click Here
​
Email your enquiry to sales@leser.co.uk together with any questions. We aim always to respond within the 24 hours.
​
Speak to one of the LESER UK sales engineers today: +44 (0)117 930 6113
​
Chat
Use the chat box and speak to someone now through the website. We'll reply as soon as we can!​
​
LESER Support & Tools
WEB SERVICES
For All LESER Support & Tools, Please Visit -
