Barnes & Jones 4205 Thermostatic Cage Unit for MARSH 3/4" #R2 RARE

Barnes & Jones 4205: thermostatic cage unit for MARSH 3/4" #R2 RARE.

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.

Manufacturer documentation: product literature.