Sell Valve Electric Actuators (QBR Series)

详情

Selected  Function

• ***0mA DC valve position feedback signal
• Lncreasting electric block with automatic adjusting function
• Lncreasing limit seitch to give passive control contacts
• Performing  integral control, possessing local/remoto-control shifting function and opening,closing and stop at local control functions
• Fitted with heat protection element for electric motor
• Fitted with space heater in the inner of electriccontrol cave
• Turn angle of output shaft is more or less than *0°
• Other special function requirement