Barnes & Jones 4164C Cage Unit Cover for Nicholson A 1/2" and 2 other models

Barnes & Jones 4164C: cover assembly for Nicholson A 1/2" and 2 other models, matched to cage unit 4164.

Fits: Nicholson A 1/2"; Nicholson A 3/4"; Sterling-Hyde Park 72 1/2".

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.