Self Operated Temperature Regulators for Mixing and Diverting

The W91 & W94 Self-Operating Temperature Regulators are the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. They require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The Actuator is noted for its rugged die-cast aluminum housing, fully-enclosed bellows assembly and internal over-temperature range protection.

3-Way Valves are used for mixing two flows together, or for diverting a flow to or around a device (bypass). In order to produce consistent flow quantity for stable operation, the pressure drop across both flow paths (inlet to outlet) must be equal. Do not use for steam applications.

Model W91 Non-Indicating (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.
Model W94 Temperature Indicating (with indicating dial) will allow the operator to verify the process temperature and to aid in temperature adjustment.

Catalog Specification Sheet

I&M

Description

The W91/W94 Self Operated Temperature Regulators for Mixing and Diverting are mechanically operated devices designed to regulate system temperature. They do this by modulating the flow of a heating or cooling fluid in response to temperature changes. These regulators require no external power source.

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