Re: Wanted: K-1 triple valves

New applications of K-triples to new standard gauge cars ended during the 1930s with the development of the AB valve. An AAR action to eliminate the interchange of cars with K-triples was put back several times because of multiple reasons until about 1950.

I understand that sales for industrial and foreign use continued for some years and even a replacement with rubber diaphragms and o-rings was even developed and sold foreign.

All triples have not been made for years. The L-triples are just as scarce.

Wabtec (Wabco) continued to make replacement parts for years for the out-of-production valves.

I understand that the cost of insurance for air brake manufactures and repair shops is one of the highest. The because that a failure of the components can cause severe wrecks and claims against the companies.

BN