Engineering standard and product standard of electric control valve

Engineering standard and product standard of electric control valve

The electric control valve is mainly composed of valve body, sleeve, valve disc, valve stem and other parts. Both the sleeve and the valve disc are provided with orifices. The valve disc rotates in the valve seat to change the overflow area and adjust the flow. Equipped with zkj or other electric angular stroke actuators, remote control and automatic control can be realized. Electric control valve is widely used in water supply pipeline for regulating flow, and can also be used in oil pipeline. The internal heat generated by the motor operation of the electric control valve will lead to thermal protection and stop the electric control valve; Because the motor can output torque only after multi-stage deceleration, the running speed is not very fast. It is not applicable in some occasions requiring rapid opening and closing. Large torque and high speed are still a contradiction that is difficult to solve; Due to the large number of moving parts, it is relatively easy to produce faults, especially under the condition of frequent regulation, it is easy to produce faults such as motor thermal protection, reduction gear damage, module thyristor burning, etc. under this condition, it is better to choose pneumatic control valve.

Engineering standard and product standard of electric control valve

Standard of electric control valve:

GB / T13927-92《Pressure test of general purpose valves》

JB / t5296-91 《test method for flow coefficient and flow resistance coefficient of general valves》

JB / t8528-1997 《technical conditions for electric devices of ordinary valves》

Gb12220-89 《general purpose valve marking》

Engineering standard of electric control valve:

GB50243-2002《code for acceptance of construction quality of ventilation and air conditioning engineering》

GB50242-2002《code for acceptance of construction quality of building water supply, drainage and heating engineering》