Diaphragm Air Valve Rave+ (3-port), 1/4'', SS Siltek treated

For Restek air sampling canisters

Exclusive polymer-free construction means no sample contamination from off-gassing or target compound loss due to adsorption.
Durable, roller-hardened valve port threads provide superior performance—and every valve is helium leak tested to 1x10-6 mL/sec.
Rugged, work-hardened, proprietary, all-metal valve seat provides protection against particles that cause leaks.
VOC-free, thread-locking adhesive keeps valve knob securely in place.
Hard-stop design prevents users from overturning the valve and locking it open.
Effortless operation—easily finger turn to achieve full valve closure (only 10 in-lb).
Rugged, 100% stainless-steel construction ensures long service life.