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No leaks on high pressure helium, means no headaches.

MK 10 NC

MK 10 NC

Conventional solenoid valves work really well in conventional applications. And the same when it comes to check valves. One of our customers is a manufacturer of skid-mounted systemevacuation and high speed refrigerant charging and reclamation systems and equipment. Some of these are rooftop systems, some are an integral part of a process and some are stand-alone leaktest stations. In every case, their reputation stands on accurate, foolproof and safe performance.

High-pressure helium is used to pre-test for burst, leak and flow performance in the charging systems. Following the leak test, refrigerant is pumped in to charge the system and complete the process.

Using conventional solenoid valves in such an unconventional application led to leaks in the high-pressure system. The rapid action demanded of the standard duty check valves caused early failure. The conventional valves proved to be the weakest link in the system and they put the freeze on our customer’s reputation.

The first co-ax® valve we recommended was an MK 10 coaxial valve with powerful control tube design was an immediate success. No leaks and no failures despite the aggressive test-to-failure trial. Since the first one was installed, over 100 more co-ax® valves have been specified for this application, without failure. The co-ax® MK 10 is a normally closed valve. It reduced the potential leak points by eliminating any need for check valves, and provided a much more compact and dependable alternative to conventional solenoid valves.

We know a lot about unusual and demanding applications. The exceptional accuracy and superior reliability of our coaxial power tube technology together with its huge operating range from vacuum to 7500 psi and from - 326°F to 756°F consistently gets us involved in some real valving adventures. But we’re committed to helping our customers out of every demanding application they get themselves into.