Armstrong RV-4 One-Pipe Steam Radiator Valve

RV-4 One-Pipe Steam Radiator Valve

For Steam Service

The Armstrong RV-4 one-pipe radiator valve is a state-of-the-art thermostatic radiator valve for low-pressure steam service. The valve provides accurate and automatic control of the temperature in individual rooms, through automatic air venting.

Check out this video from "This Old House" on how to install: 




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