Barnes & Jones 4116C Cage Unit Cover for Erwel R30 3/4" and 2 other models

Barnes & Jones 4116C: cover assembly for Erwel R30 3/4" and 2 other models, matched to cage unit 4116.

Fits: Erwel R30 3/4"; Spirax Sarco H 3/4"; Spirax Sarco M3 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.