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ProTef® Lined, Wafer Style, Spring Loaded Check Valves

Design Features

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