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LESER GmbH
High PerformanceType 441 IC
Full lift safety relief valve with full nozzle for the Indian market, ASME-, BS-, DIN flange connections
Components & Design
Component data being added…
Technical Data
Set pressure (according to ASME)
0.1 - 40 barg | 15 - 580 psig
Temperature(according to ASME)
-196 to 538 °C |-321 to 1000 °F
Connections DIN EN 1092
DN 25 - DN 200
Connections ASME B16.5
NPS 1 - NPS 12
Flange class Inlet DIN EN 1092
PN 10 - PN 40
Flange class Inlet ASME B16.5
Class 150 - Class 600
Body material
SA 216 WCB, SA 351 CF8M, SA 351 CF8, SA 217 WC6, SA 352 LCB, SA 351 CF3, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy)
Flow diameter d₀
23 - 165 mm | 0.906 - 6.496 in
Flow area A₀
416 - 21385 mm² | 0.644 - 33.147 in²
Faltenbalgwerkstoff (optional)
Stainless steel
Seat seal
Metallic, Soft Sealing
pdf Calculation of mass flow acc
to IBR 1950
pdf pressure
It can be used for back pressure up to a maximum of 35% of the set pressure. The
pdf Set pressure
3.0 bar minimum
pdf with API 526 standard
Type tested valve with flanged and threaded
pdf and certified by ASME
Available connections. Type tested and certified
pdf connections
Type rested and certified 1” to 4” inlet, flanged to 150#. Type
pdf by ASME
Available with “UV” stamp. tested and certified by ASME. Available
source url
https://www.leser.com/en/products/high-performance/type-441-ic/
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Equipment Model #159188
· ✓ still in production
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Actuation Valve & Control Ltd · United KingdomAlfa Laval Aalborg Oy · DenmarkJ A Moody LLC · United StatesShiptec AG · SwitzerlandTMS - Hamburg Technical Marine Ser · GermanyValve Center Limited · Vereinigtes Koenigreich
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