Type 441 IC | LESER - The Safety Valve

High Performance

Type 441 IC

Flanged standard pressure series for the Indian market suitable for steam, gas and liquid service. They have proven themselves as a universal safety valve for many applications.


LESER High Performance safety valves of Type 441 IC are designed, marked, produced and approved according to the requirements of the following regulations:

  • Approval IBR
  • Approval PESO
  • LESER EAC Approvel

Technical specifications Type 441 IC

Nominal Diameter at Inlet
DN 25 - DN 200 | 1" - 8"
Actual Orifice Diameter d₀
23 - 165 mm | 0.91 - 6.5 in
Actual Orifice Area A₀
415.27 - 21382 mm² | 0.644 - 33.142 in²
0.1 - 40 bar | 1.5 - 580 psig
Flange Rating Inlet
CL150 - CL300
Temperature (in accordance with DIN EN)
-268 to 540 °C | -450 to 1000 °F
Body Material
A 216 WCB, A 352 LCB, A 217 WC6, A351 CF8M/CF3M
Valve Connection
Flange acc. to acc. to ASME B 16.5 or acc. to DIN EN 1092-1 or acc. to BS Standard
Bellows Material (optional)
Stainless steel
Load Type
Spring loaded
IBR Certificate Form III C, PESO (CCOE), EAC, any TPI upon request
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Indian High Performance Catalogue

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441 IC catalog
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