The ChemDisc | DTEF is our premium PTFE check valve. Developed especially for use with lined piping systems and chemically aggressive media.
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Product requestDesign Features
Corrosion Resistant
High corrosion resistance thanks to the use of PTFE components and PFA lined Hastelloy springs
Explosion Prevention
Conductive PTFE version for operation in potentially explosive atmospheres
Robust
The metal body provides deformation protection for the corrosion resistant PTFE components
Technical Specifications
Nominal Diameter
DN 15–150 | ½”–6”
Flange Connection
EN 1092-1, PN 10–16 | ASME Class 150 | JIS 10K
Max Working Pressure
10 bar
Operating Temperature
-200°C to 160°C
Face-to-Face Length
EN 558-1, Series 52
Materials
Stainless Steel | Modified PTFE | Modified & Conductive PTFE
Spring Materials
PTFE Lined Hastelloy
Seal Materials
PTFE | EPDM | NBR | FKM
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
