Ⅰ. Manual drive

Manual drive is a driving method that directly drives the valve stem and valve core by manually operating a handwheel, handle or lever. It is the most traditional and basic form of valve drive.

Performance limitations

1.Not suitable for large diameters (usually difficult to operate when the diameter is greater than DN100)

2.Low control accuracy

Applicable Applications: Small-diameter, low-pressure scenarios.

For example, civil water pipes, household gas valves, and small air-conditioning systems have small flow rates and low operation frequencies, and can be easily handled by manpower.

Ⅱ Electric drive

The electric drive is powered by an electric actuator (consisting of a motor and a reducer), which converts electrical energy into mechanical force to drive the valve, enabling remote control, automatic adjustment and precise positioning.

Applicable Applications:

1.Industrial automated production lines

Electric valves can be adjusted proportionally to ensure that material flow precisely matches process requirements.

2.Remote control and unmanned operation

For example, sewage treatment plants, urban water supply pumping stations

Ⅲ Pneumatic drive

Pneumatic drive uses compressed air as the power source, and converts air pressure energy into mechanical force through pneumatic actuators (cylinder or diaphragm type) to drive valve opening or closing or adjustment.

Applicable Applications

1. Flammable and Explosive Industries

2. High-Frequency Operation Scenarios

The number of openings and closings can reach thousands per day, and the fast response of pneumatic actuators can match the production line cycle time.