Barnes & Jones 3146C Cage Unit Cover for Erwel R30 1/2" and 11 other models

Barnes & Jones 3146C: cover assembly for Erwel R30 1/2" and 11 other models, matched to cage unit 3146.

Fits: Erwel R30 1/2"; Erwel R30 3/4"; Erwel R30 Vert. 1/2"; Erwel R30 Vert. 3/4"; Spirax Sarco H 1/2"; Spirax Sarco H Vertical 1/2"&3/4" and 6 more.

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.