At Process Systems, we supply self-acting temperature regulators designed to provide reliable temperature control without the need for electricity or pneumatics. These valves automatically control the flow of steam or liquid in response to temperature changes, helping maintain a constant preset temperature in heated or cooled products.
Our range includes bronze temperature regulators for heating and cooling applications, along with matching accessories such as a 2 m sensor for the OB-30 and a thermowell to suit the OB-30 temperature probe. With sizes from 1/2" to 1" BSPT and pressure ratings up to 10 BAR, these products offer a practical solution for systems that need dependable standalone control.
A temperature regulator is a self-acting control valve. It uses the expansion and contraction of temperature-sensitive material inside the sensor and capillary to move the valve and adjust flow as the product temperature changes.
For heating duties, a normally open valve is typically used. As the product temperature rises toward the set point, the valve moves toward the closed position to reduce the flow of heating media such as steam or hot water. For cooling duties, a normally closed valve is used. As the product temperature rises, the valve moves toward the open position to allow cooling media into the system.
These valves perform well in steady load conditions and are designed to maintain proportional control rather than simply being fully open or fully closed. They do not rely on any external power source, which makes them a useful option where electrical or pneumatic supply is limited or where continued operation during power failure is important.
Self-acting temperature regulators are well-suited to applications that need robust, standalone temperature control without the added complexity of electronic or pneumatic systems. They are straightforward to size and select, require only one trade for installation, and offer reliable long-term operation when installed correctly.
Typical uses include jacketed pans, tracer lines, boiler feedwater tanks, hot water calorifiers, acid baths, and cooling control for boiler blowdown vessels. They are generally best suited to non-critical applications with low, steady flow rates.
This range includes:
Process Systems supplies high-quality temperature regulators backed by practical product support and fast local supply. We offer same-day dispatch on stocked items and provide free online shipping Australia-wide.
All products come with a 12-month warranty, and our valves leave the warehouse tested and inspected. If you need help selecting the right temperature regulator, sensor, or thermowell for your application, our team can help you choose a suitable option based on your system requirements.
Browse the full range below or contact Process Systems for expert advice.
SKU: OB-31
Bronze Temperature Regulator ( Cooling )Size 1/2" to 1" BSPT
Body Broze
Pressure Range 0 to 10 BAR
Temperature Various
SKU: OB-30
Bronze Temperature Regulator ( Heating )Size 1/2" to 1" BSPT
Body Broze
Pressure Range 0 to 10 BAR
Temperature Various
SKU: OB-30-TW
Thermowell for OB-30 Temperature ProbeSize To suit temperature probe
Temperature Various
What is a temperature regulator?
A temperature regulator is a self-acting temperature control valve that automatically controls the flow of steam or liquid in response to temperature changes. It is used to maintain a product at a constant predetermined temperature.
Do temperature regulators need electricity or pneumatics?
No. These automatic self-acting temperature regulators do not require electricity or pneumatics to operate. They continue working without external power or air supply.
What is the difference between heating and cooling temperature regulators?
Heating applications typically use a normally open valve, which closes as the product temperature rises toward the set point. Cooling applications use a normally closed valve, which opens as the product temperature rises to allow cooling media through.
How should a temperature regulator be installed?
Temperature regulators should be installed in line with the manufacturer’s recommendations and good steam fitting practice. Correct flow direction, correct orientation, proper support, and upstream strainers are all important. The sensor should also be positioned so that at least three-quarters of its length is in direct contact with the product.
How long will a temperature regulator last?
Service life depends on the operating environment, the quality of the steam or fluid, and the maintenance regime. A correctly selected and maintained temperature regulator should perform for many years.
What warranty do I get?
All temperature regulators from Process Systems come with a 12 month warranty. Products are tested and inspected before leaving the warehouse.