Hydrogen/High Purity Components
Hy-Lok UK's range of Hydrogen EC79 rated valves and fittings allows us to be very competitive in this developing market.
Hylok is also very prominent in Semiconductor manufacturing in the process of creating integrated circuits used in electronic devices and electrical equipment. This unique process is comprised of four steps including deposition, patterning, removal and electrical modification. Each of these steps require a number of valve and fitting solutions.
Our products can be found throughout the world in countless semiconductor component, chip and wafer manufacturing facilities.

Diaphragm Valves
Hy-Lok's Diaphragm Valves are made of 316L VIM/VAR and offer a long life cycle with excellent corrosion resistance with a variety of surface finishes for your specific applications.
ZCR Face Seal Fittings
Metal gasket face seal fittings meet or exceed semiconductor industry specifications for tube connections up to 1″ O.D. Hy-Lok ZCR gasket fittings have been tested to hold and exceed a leak rate of 10-9 torr.
Weld Fittings
Hy-Lok weld fittings range from 1/8″ T to 1″ T for tube to tube configurations and 1/8″ NPT to 1″ NPT for tube to male and female pipe configurations.