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ProTefTM Lined, Wafer Style, Spring Loaded Check Valves

Design Features

Corrosion Resistant
High corrosion resistance due to internally lined ProTefTM components and PFA lined Hastelloy springs
Explosion Prevention
Conductive ProTefTM version for operation in potentially explosive atmospheres
Robust
The metal body provides security and damage protection for the ProTefTM components

Technical Specifications

Nominal Diameter
½”–6” | DN 15–150
Flange Connection
ASME Class 150 | EN 1092-1, PN 10–16 | JIS 10K
Max Working Pressure
145 psig | 10 bar
Operating Temperature
-200°C to 160°C
Face-to-Face Length
EN 558-1, Series 52
Materials
Stainless Steel | ProTefTM | Conductive ProTefTM
Spring Materials
PFA Lined Hastelloy
Seal Materials
PTFE | EPDM | NBR | VITON
Conformity
PED 2014/68/EU | ATEX 2014/34/EU | Food (EC) Nr. 1935/2004 | FDA
Pressure Test: EN 12266-1
Leakage Rate A for soft sealings | Leakage Rate D for PTFE sealings