VB3000 series threaded connection electric valve Shanghai Valve Co., Ltd. Tianjin Shield

A purpose: electric valves are adjusted automatically control pipe measurement apparatus for heating, ventilation and air conditioning systems to order, hot continuous adjustment control. Such as: water control air conditioning and ventilation equipment water control, heating equipment. Two works: an electric two-way valve from the valve and actuator consisting of (the actuator structure and working principle please see actuator instructions). Electric two-way valve from the valve body, valve cover, valve seats, valve and valve stem and other parts, refer to the specific structure diagram. Electric two-way valve in the role of the working principle of the actuator, the valve stem drive up or down movement do to change the flow area between the valve and valve seat, in order to regulate and control the flow of the medium. VA-3000 series drive is an electro-mechanical products, with VB-3000 series is equipped with a valve. VA-3000 series consists of three basic models: 1.VA-3100, reversible motor operation, provide incremental control. 2.VA-3200, can accept input 0 ~ 10V or 4 ~ 20mA DC control signals, providing proportional control. While a DC voltage feedback signal 0 ~ 10V or 4 ~ 20mA, the relative position of the reflection of being executed. Three profiles: 1. the drive bracket on the copper sleeve valve connector and tighten drive screws. 2. The lock nut is screwed into the stem after stem lift and dial indicator set into the stem, then rotate the drive connecting rod so that it is screwed into the stem until the stem tighten. Finally, the lock nut wrench, tighten force indicator guides (see Figure II drives connecting rod factory it is set in the fully closed position of the valve, such as the absence of exceptional circumstances no need to make adjustments.) 3. The installation should be priority upright, and should leave enough space to unload drive for use when the service valve. 4. Connect the power supply according to the wiring diagram. 5. energized copper valve is closed, the scale ruler engraved lines and dial indicator closed aligned and securely affixed to the drive bracket. 6. power check: VA-3000 (VA-3200) can be reliable drive-off valves upstream and downstream; VA-3000 (VA-3201) and VA-3102 (VA-3202) driver must first set up by the stroke valve drive travel jumper (J5). Then give a full signal, such as 0 ~ 10V mode 10V, the drive will be down to the circuit board in the red light turns off. Such as the appearance of the drive gear has been stopped, but light is still on, this indicates that the drive is set slightly larger than the copper valve stroke of the actual travel. Need travel counterclockwise trimming potentiometer PT1 (STROKE), until the light turns off, when the valve is fully open. Give the fully closed 0V signal to drive at the line indicator goes, that valve is fully closed the drive is in the position it is set at the factory. If the indicators still light, it needs a slight decrease in the drive connecting rod and valve stem threaded into the depth until the light goes out. Finally, try to run a cycle, to ensure full, fully closed when the lamp can be turned off.