Miniature solenoid valve
provides inert isolation
The Model WTA-2 two-way, normally closed, inert isolation valves and Model WTB-3 three-way valves are avilable with molded polyether ether ketone (PEEK) and polyphenylene sulfide (PPS) valve bodies. Both use polytetrafluoroethylene (PTFE) isolation diaphragms and a valve seat of soft, fluoroelastomer seals, which are said to be very tolerant of particulate matter in the media that would typically destroy conventional valve seals. — Clark Solutions, Hudson, Mass.