Automatic Thermostatic Radiator Valve Thermostat Temperature Control Valve Angle Floor Heating Special Valve. The temperature sensing element in the temperature control valve controls the size of the valve and automatically adjusts the flow rate to achieve a comfortable temperature range. Pressure:Low Pressure Actuator Mode:With Manual And Instruction Power:Manual Media:Water Structure:Control Power Source:DC Temperature of Media:Normal Temperature Standard or Nonstandard:Standard Thread Type:G1/2Inch or G3/4Inch Port Size:1/2inch or 3/4inch Type:DN20/DN15 Colour:As Shown Material:Plastic+Copper Package Contents: 1 Set * Thermostatic Radiator Valve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.