43-6 Type Temperature Regulators (Cooling)

The Type 43-6 self-acting temperature control valve, engineered for use in cooling systems across various industrial sectors, incorporates a balanced globe valve offering both flanged and threaded connections at the ends. Its functionality relies on the adsorption method, equipped with a thermostat, an adjustable set point ring, a capillary tube, and a temperature sensor that triggers the valve to open as the temperature rises. This control valve is designed for minimal maintenance, can function at pressures up to 580 psig, and is capable of handling temperatures up to 120°F above the selected setting, making it ideal for managing liquids, gases, and steam.

Key Features

Key features and benefits of 43-6 Type Temperature Regulators (Cooling)

Key Features

Utilises an adsorption-based operation, incorporating a thermostat, set point adjustment ring, capillary tube, and temperature sensor. This design ensures the valve automatically opens as the temperature increases, providing efficient temperature regulation without the need for external power sources.

Key Features

The Type 43-6 temperature control valve features both flanged and threaded end connections, offering flexibility for integration into various piping systems across industrial applications.

Key Features

Designed for low maintenance and capable of operating at pressures up to 580 psig. It is also equipped to handle excess temperatures up to 120°F above the set point, making it suitable for a wide range of mediums, including liquids, gases, and vapours, thereby ensuring reliability and durability in demanding industrial environments.

Regulator Standards & Stuff

Nominal Diameters: DN15 to DN50 (1/2" to 2")
Pressure Classes: PN25 (Class 250)
Materials: Red Brass CC491K/CC499K, Stainless Steel
Temperature Range: up to 150°C (up to 300°F)
Set Points Range: 0 to 150 °C
Application: For Plants to be Heated or Cooled
Versions: 43-5, 43-6, & 43-7
Weight Range(kg); 1.8 to 2.0


A Valve Temperature Regulator is a control valve that automatically adjusts the flow of a fluid to maintain a desired temperature. It operates without external power, using a thermal actuator that responds to fluid temperature.

These regulators use a sensing element that expands or contracts with temperature changes. This movement is mechanically linked to a valve that adjusts the flow of the heating or cooling medium to maintain the set temperature.

There are mainly two types: direct-acting, where the sensor is directly connected to the valve, and pilot-operated, which uses a pilot valve to control the main valve. Selection depends on the application's size, temperature range, and precision required.

They are critical for processes that require precise temperature control for safety, efficiency, and product quality. They help in reducing energy consumption and ensuring the longevity of equipment by preventing overheating or undercooling.

Yes, they are versatile and can be designed for either heating or cooling applications. The selection depends on the control action needed to maintain the desired temperature within a system.

Key factors include the control range, the temperature sensitivity required, the medium being controlled (water, oil, gas, etc.), the flow rate, and the operating environment. It's also important to consider the regulator's material compatibility with the fluid.

Installation guidelines vary by model, but generally, it should be mounted in a location where it can accurately sense the temperature without being affected by external conditions. It's important to follow manufacturer recommendations for orientation and to ensure proper piping practices.

Regular maintenance includes checking for leaks, ensuring the actuator moves freely, and verifying the accuracy of the temperature control. Troubleshooting may involve inspecting for clogs, recalibrating the temperature set point, or replacing worn parts.

Symptoms include inability to maintain the set temperature, fluctuating temperatures, leaks, or unusual noises during operation. Such signs indicate the need for inspection and possibly repair or replacement.

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43-6 Type Temperature Regulator (Cooling)