CRITICAL SERVICE
TYPE 449
Industries
Approvals
Type 449 LESER Critical Service pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
Technical Specifications for Type 449
Nominal Diameter at Inlet
DN 25 - DN 100 | 1" - 4"
Actual Orifice Diameter dâ‚€
23 - 92 mm | 0.91 - 3.62 in
Actual Orifice Area Aâ‚€
416 - 6648 mm² | 0.645 - 10.304 in²
Pressure
0.1 - 16 bar | 1.45 - 232 psig
Flange Rating Inlet
-270 to 450 °C | -121 to 392 °F
Temperature (in accordance with DIN EN)
Acc. to customer preference all materials available
Body Material
Stainless steel
Valve Connection
Flange acc. to DIN EN 1092-1 or acc. to ASME B 16.5
Bellows Material (optional)
PTFE
Load Type
Spring loaded
Approvals
On request
Specials
Currently no approvals acc. to ASME
Downloads
.Access all the necessary documents and detailed information for pressure relief valves in our download area.
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