Barnes & Jones 1929C Cage Unit Cover for Barnes & Jones 123 1/2" and 3 other models

Barnes & Jones 1929C: cover assembly for Barnes & Jones 123 1/2" and 3 other models, matched to cage unit 1929.

Fits: Barnes & Jones 123 1/2"; Barnes & Jones 124 2x3; Barnes & Jones 134S 3/4"; Barnes & Jones M13 3/4".

A Barnes & Jones cage unit contains every working part of a thermostatic steam trap, including the seat, calibrated together under steam at the factory and locked into a stainless steel housing. It drops into the existing trap body as a one-piece, removable, testable unit, with no loose parts to align or over-tighten. Type A units serve vacuum to 25 psig, Type B to 65 psig and Types C and D to 300 psig.