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Steam and Hot Water Accessories | Regulators | Thermostatic Temperature Regulators
Thermostatic Temperature Regulators

The Series 1140 & 1141 Temperature Regulators are designed to maintain a desired temperature for commercial and institutional heating and cooling applications. They are self-actuated and vapor pressure operated.

Series 1140 Regulators are cross ambient filled and may be used where ambient temperature exceeds the set control temperature. Series 1141 Regulators are not cross ambient filled and should not be used where ambient temperature exceeds the set control temperature.
• Operating modes
—Direct Acting
—Reverse Acting
—Three Way
• Available in sizes 1⁄2" - 2" NPT 21/2" - 4" (65 - 100mm) Flanged
• Available in various body styles with different seating arrangements
• Hermetically sealed actuator available in temperature control ranges of 40°F (4.4°C) through 220°F (104°C) in increments of 40°F (22.2°C)
• Optional wells available in copper or stainless steel
• Heavy duty 10 ft. (3mm) capillary with flexible armor and reinforced ends
• Maximum body pressure
—1⁄2" -11⁄2" NPT 250 psig (17.3 bar)
—2" NPT 200 psig (13.8 bar)
—21⁄2" - 4" (65-100mm) Flanged 125 psig (8.6 bar)
• Maximum body temperature 406°F (208°C)

Technical Data
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