Leak-Proof Torq-Lok
One of the most popular leading edge components featured in ACC systems is the Torq-Lok refrigerant plumbing system. Torq-Lok eliminates the refrigerant leaks common in other AC systems.

Why is that important? For absolute reliability. Refrigerant leaks have long been the primary problem behind aircraft vapor-cycle air conditioning. Use of 37° flare fittings, common in automotive systems and many competitive aircraft systems, is unreliable in the high-vibration environment of a helicopter. Air Comm eliminated that flawed design with a unique seal system.

Torq-Lok Refrigerant Fitting
This state-of-the-art system utilizes a face-seal O-ring arrangement that is simple to install. It is virtually impervious to installation or maintenance damage, and provides an absolutely leak-proof seal. Torq-Lok is featured on ACC air conditioners for the Bell 206, NTH, 412, 430, 427 and Agusta
A-119. It is scheduled to replace insert O-ring fittings on the Bell 407 air conditioner in 2002, and will be used exclusively on all ACC systems in the future.

Torq-Lok’s positive, leak-free seal is just one of the many innovations found on Air Comm systems which contribute to their high efficiency and remarkably low maintenance requirements.

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