Watson McDaniel W91/94 Self-Op Temperature Regulators

Watson McDaniel offers a variety of Regulators, which are simple and cost-effective valves.

The Watson McDaniel W91/W94 Self-Operating Temperature Regulator is a mechanically operated device designed to regulate system temperature by modulating the flow of a heating or cooling fluid in response to temperature changes; requires no external power source. They are recommended for controlling temperature on relatively stable systems, where small valve stroke modulations will correct temperature drift. Where sudden or large load changes, or rapid temperature changes occur, a pneumatically-actuated Control Valve should be considered.