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RT1010 The RT-1010-A Series features a balanced 3-way valve and a means for manual valve positioning by hand crank as an alternate to the normal automatic control when desired or upon loss of thermal charge. The primary application is bypass or diverting cooling service for engines, gas turbines, etc. The RT-1010-A Series can also be used for rough mixing service (See Data Sheet

NOTE: Due to slight difference in regulator frame construction, the 3" size is designated as RT-1010-A1; size 4" as RT-1010-A2; and sizes 5"and 6" as RT-1010-A3. These regulators have cast frames and manual valve positioning hand crank. Pinion and adjustment spring are steel. Other parts not listed in the following specifications are made of non-ferrous metals.

Without need for external power, Robertshaw Self-Actuated Temperature Regulators (SATR) offer final control of the temperature of a liquid, an air space or flow, or gas flow for domestic, equipment, process, space, etc. on heating or cooling service.

The SATR sensing bulb is installed in the medium being controlled while the SATR valve is located on the supply line of the medium used as the heating (steam, hot water) or cooling (water, ethylene glycol, brine) agent. The SATR regulates the heating or cooling medium flow to maintain the desired temperature at the sensing bulb location. Robertshaw SATR are usually cataloged to detail the two-way direct acting (close on temperature rise) type valves for heating service. Two-way reverse-acting (open on temperature rise) and three-way valves are equally available for cooling service.

The Robertshaw SATR series offers a selection of: Throttling bands, Temperature Indication, Fail-safe to prevent overheating, Manual Positioning in addition to automatic control, Corrosive atmosphere resistant type, Small overall size and instantaneous beat exchanger service.

Most cataloged Robertshaw SATR specifications are starting points from which many alternates to cataloged capillary, sensing bulb, separable well and valve may be FURNISHED TO MEET YOUR SPECIFIC application's needs.


  1. Extra Large Two-ply, seamless Robertshaw bellows used for long life
  2. Valve can be manually positioned or thermostatically operated alternately by hand crank as desired.
  3. Over-temperature protection is standard feature
  4. Chevron "Lifetime" stem packing made of Teflon* or EPT Rubber U-Cup for water service
  5. Quick-detach valve stem construction permits easy valve change
  6. Sturdy construction with cast iron frame
  7. Variety of sensing bulb forms and materials available
  8. Valves in wide range of sizes, action, styles, materials, etc. for many services
  9. All components manufactured by a single source