Critical Service

Safety valves with PTFE lining for corrosive media

  • Wetted areas made of corrosion resistant PTFE
  • Cost-effective alternative to high-alloy materials, such as nickel-based alloys
  • Optional ATEX compliant lining prevents electrostatic charge
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Critical Service safety valve from LESER

Technical data Critical Service safety valves

Set pressure
0.1 - 16 barg | 1.45 - 232 psig
Temperature
-85 - 200 °C | -121 - 392 °F
Capacity
orifice F+ to P
Connections DIN EN 1092
DN 25 to DN 100
Connections ASME B16.5
NPS 1 to NPS 4

Body material
Carbon steel/PTFE
Cargill
Solvay
Bayer CropScience
LESER Safety valve Type 447 cutting image
Cargill
Solvay
Bayer CropScience

Valve Types

Choose the product type that suits you

Critical Service Safety valves
LESER Critical Service Safety Valve Type 447
Type 4472

Safety valves with PTFE full lining in inlet and outlet area for highly corrosive media

DN 25 - DN 100 | NPS 1 - NPS 4

0.1 - 16 bar | 1.45 - 232 psig

447B3882_DN50_kl
Type 447B

Safety valves with conductive PTFE full lining in inlet and outlet area for explosive applications

DN 25 - DN 100 | NPS 1 - NPS 4

0.1 - 16 bar | 1.45 - 232 psig

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Critical Service Catalog

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