Electric Actuated Globe Valve is assembled by installing an electric actuator on the basis of globe valve. The opening and closing of the valve is controlled by electric device. Direct‑connection mode is adopted for connecting valve and actuator. The electric actuator has built‑in servo system without additional servo amplifier. It can operate with 4‑20mA signal and 220VAC power supply. It features simple wiring, compact structure, small size, light weight, low resistance and stable & reliable action. On‑site manual operation is available upon request, and the actuator is equipped with manual‑electric switching mechanism. Besides local operation, remote operation can also be realized.

Performance Characteristics of Electric Actuated Globe Valve

Automation and Remote Control: Equipped with electric actuator, it realizes remote automatic control and precise position adjustment of the valve, greatly improving operation efficiency and safety.

High‑precision Control: The electric actuator provides accurate valve position control, which is very suitable for working conditions with strict requirements for flow, pressure and other parameters.

Fast Response: It owns fast opening‑closing capacity, suitable for systems requiring frequent adjustment or rapid condition switching.

Excellent Sealing Performance: Hard‑facing alloy is applied on valve sealing surfaces, featuring good wear‑resistance, high‑temperature resistance, corrosion resistance and anti‑scratch property to guarantee tight shut‑off and long service life.

High Structural Reliability: Compared with manual valves, it reduces human operation errors. The integration of electric actuator and control system improves reliability and stability of the valve.

Wide Scope of Application: Suitable for various media and working conditions, widely used in chemical, petroleum, pharmaceutical, power and other industrial fields.

Working Principle of Electric Actuated Globe Valve

Electric Drive: Electric Actuated Globe Valve takes power from motor, converts electric energy into mechanical energy to drive valve opening and closing actions.

Transmission Device: The motor transmits rotational force to valve disc through transmission devices such as worm gear and worm, gear transmission, so as to open or close the valve and control fluid circulation.

1. At closed position, the valve disc sealing surface is tightly pressed against the seat under mechanical pressure from valve stem.

2. When the handwheel rotates counter‑clockwise, the valve stem moves reversely, and its bottom angular plane releases the disc from the seat.

3. The valve stem keeps lifting and interacts with guide pin in stem spiral groove, making the disc rotate without friction.

4. Until fully‑open position, the stem lifts to limit position and rotates to full‑open status.

Control System: Electric Actuated Globe Valve is generally equipped with control system. Valve opening‑closing can be controlled via control panel or remote operating device to realize automatic control.

Main Parts Materials

Technical Parameters

Main Technical Parameters of Electric Actuator

Power Supply: Standard: 3‑phase 380V (50Hz); Special: 3‑phase 660V, 415V (50Hz, 60Hz); Single‑phase 220V, 110V (50Hz, 60Hz)

Working Environment:

Ambient Temperature:‑20~+60℃ (‑40~+80℃ for special order).

Relative Humidity: ≤95% (at 25℃).

Protection Type: Outdoor type for sites without flammable, explosive and corrosive media. Explosion‑proof type includes dⅠ and dⅡBT4. dⅠ is suitable for non‑excavation working face of coal mine; dⅡBT4 is used in factories for ⅡA, ⅡB grade T1~T4 explosive gas mixture.

Protection Class: IP65, IP67.

Operation Instructions for Electric Actuated Globe Valve

Power Supply: Ensure stable and reliable power supply complying with rated voltage and frequency to guarantee normal motor operation.

Control System Operation: Be familiar with control system operation. Operate control panel or remote device correctly and follow instructions in operation manual for opening‑closing control.

Valve Position: Guarantee correct installation position complying with design requirements, and reserve sufficient operation space for daily operation and maintenance.

Maintenance: Inspect and maintain the valve regularly, including cleaning valve surface, checking transmission device condition, lubricating valve bearings, etc. Keep valve in good condition to extend service life.

Motor Protection: Pay attention to motor protection to avoid overload, overheating or short circuit. Install overload protector or temperature sensor if necessary.

Safe Operation: Take personal safety precautions during operation to prevent finger clamping or other injuries. Wear appropriate personal protective equipment when needed.