Temperature Regulating Valve OB-31/OB-31U Series

Temperature Regulating Valve OB-31/OB-31U Series

• Uses different handle colors, red for heating and blue for cooling. Applications are understandable at a glance.
• The valve is made of stainless steel and fluororesin, which ensures excellent durability and high sealing performance.
• The single valve, balanced bellows construction allows stable temperature control without being affected by the input pressure fluctuations.
• It is easy to change the temperature specification, because the body portion and the sensor unit can be mounted and removed easily.
• As it has a large temperature adjustment range, it can be used in a wide range of applications.
• There is no distinction of sensors for heating or cooling and this item fits sizes 15 to 25 A. Please choose within the standard temperature adjustment range.
• Initial temperature setting is easy using the handle.


Japanese Only

Part Number

Configured Part Number is shown.

Part Number
Part NumberVolume DiscountDays to ShipSupply Side, Screw Connection Types Supply Side, Nominal Designation of Piping Thread Denomination B(Denomination A) Control Side, Thread Connection Type Control Side Naminal Pipe Threads B name (A name)
Quote Rc1B(25A)Rc1B(25A)
Quote -1B(25A)-1B(25A)


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Basic Information

Regulating Valve / Safety Valve Type Temperature regulating valves Applicable Fluid Water Thermostatic Valve Model Direct operation type and for cooling
Max. Applicable Pressure(MPa) 1.01~2 Max. Fluid Temperature(℃) 185 Connection Type Equal Dia. Connection
Maximum Applicable Pressure Data 1.7

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