Check valve Partek Division
PTFE, PFA

Design utilizes all PTFE components and no o-ring to provide superior chemical resistance and purity.
Polished sealing surfaces provide long life and superior sealing characteristics.
Tongue and groove external seal eliminates o-rings and compatibility issues.
Machined PTFE spring provides low cracking pressure.
Numerous end configurations available which reduces connections, mounting space and overall cost.

Specifications

Wetted Materials
PTFE

Non-wetted Materials
PFA, PVDF, ETFE

Cracking Pressure
0.25 PSIG (.017 bar) - 0.75 PSIG (8.3 bar)

Back Check Seal Pressure
5.0 PSIG (.35 bar)

Pressure Ranges
0 - 120 PSIG (8.3 bar) See Cracking Pressure Chart in literature pdf.

Ambient Temperatures
32° - 212° F (0° - 100° C) for Style 1
50° - 212° F (10° - 100° C) for Style 2 and 3
60° - 212° F (15.5° - 100° C) for Style 4 and 5

Fluid Temperatures
32° - 266° F (0° - 130° C) for Style 1
50° - 266° F (10° - 130° C) for Style 2 and 3
60° - 266° F (15.5° - 130° C) for Style 4 and 5

More specifications...