Self-Actuated Temperature Regulators

Robertshaw Numerical Index

Regulator Assembly Options

RT-200 Series
No longer available

The RT-200 Series compact hot chamber temperature regulators are highly sensitive, yet sturdy, self-contained, and self-powered. 

The 908 cooling water regulator is a simple, self-contained instrument that controls cooling applications by regulating the flow of cooling water in accordance with discharge water temperature.  More

Model RT-921

The RT-921 series offers both non-indicating and integral temperature indication control of liquid, air or gas in applications with steam or water as the heating source.  More

The RT-1001B1 features a wide throttling band and small bulb size that is particularly suited for applications where the heating surface is large, and the storage capacity of the heated product is small.  More

The RT-1001T2 tank regulator is specifically designed for the petroleum industry to control temperature on treaters, heaters, separators, etc.


The RT-1003 self-actuated temperature regulators offer final control of the temperature of a liquid, air space or flow, or gas flow in heating or cooling applications. 

The RT-1004 series self-actuated regulator has a variety of two-way, single-seated and double-seated valves, and direct, reverse-acting and three-way valves.

The RT-1006B1 and RT-1007A1 series has a "fail-safe" design which will push the stem down if the thermal charge fails.


The RT-1009 is similar to the RT-1003 but has a manual handcrank that can manually position the valve

The RT-1010A self-actuated regulator features a balanced, three-way valve, with a handcrank option to manually position the valve in case of thermal system failure. More

The RT-1011-B1 series is an extension of the workhorse RT-1003-D1 series. It is the design result of trying to make the non-indicating RT-1003-Dl series with all exposed parts of the upperworks in 18-8 SS More

The I-1284 and I-1285 are compact, self-contained and self-powered, three-way temperature regulating valves. Suitable for controlling water and lubricating oil temperatures on internal combustion engines.  More

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