New Hoke HQC quick couplers from Circor Instrumentation include multiple backup O-rings for leak-tight sealing in pressurised or vacuum systems and positive valve stops to prevent flow checking in the body. Offered in 316 stainless steel or brass from 6 to 12mm these instrumentation couplings also have Teflon-bonded stainless locking âdogsâ? giving a firm grip of the assembly body and locking mechanisms to ensure smooth sleeve alignment. Hoke’s Gyrolok nut and ferrule system provides leak-tight end connections, and guides align valves exactly to the coupling’s valve seat to prevent the chance of leakage in a disconnected mode. Keyed sleeves interchangeable with other major manufacturers’ components of the same style are also available.
