Motorized valve | Good quality

Motorized valve | Good quality

The driving device of the motorized valve is a reversible electric motor, which drives the spool to control the valve through the rotation of the motor for a certain period of time. Using AI analog signal control, the flow of the pipeline medium can be adjusted, and digital can also be used in specific pipeline environments. Signal control.
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Exquisite craftsmanship

Exquisite craftsmanship

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Technological innovation

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Special custom

Torque up to 4678nm Senior technical guide selection Special customization according to customer needs

Consistent quality

Consistent quality

ISO9001 international certification Adhere to standardized production processes 1 million cycles durability test

Motorized valves series

COVNA Industrial Automation Co., Ltd. was established in 2000, an automated valve specialist. Headquartered in Dongguan China, with 3 production bases located in Ningbo, Wenzhou and Dongguan. 

We Provide Electric Valve,Solenoid Valve,Pneumatic Valve,Electric Gate Valve,Electric Butterfly Valve,Pneumatic Control Valve,Motorized Valve,Pneumatic Knife Gate Valve,Control Valve Pneumatic,Pneumatic Actuated Valve,Motorized Operated Valve,Electric Ball Valve,Electric Actuated Ball Valve,Ball Valve,Gate Valve,Gate Valve,Butterfly Valve,Globe Valve,etc, You can browse related products and initiate consultations on our website.

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Switch type motorized valve

On-off electric valves are also called two-position electric valves, which have outstanding advantages and are widely used in industrial production processes. For example, in industries such as power plants and petrochemical industries, the worksites in these industries have high risk factors and high labor intensity, which is very unsafe for frontline operators.

Switch type motorized valve

Principle of operation of motorized valve

Motorized valve are usually composed of electric actuators and valves. The electric valve uses electric energy as power to drive the valve through an electric actuator to realize the opening and closing action of the valve. So as to achieve the purpose of switching the pipeline medium.

Principle of operation of motorized valve

Regulating electric valve

Regulating electric valve action is an analog quantity, which is a continuous position signal. Therefore, the remote control of the electric valve requires the output of the analog quantity of the distributed control system, so that the valve can be opened or closed to any position. Since remote control cannot see the working status of the on-site valve, feedback information needs to be introduced into the distributed control system. At this time, the analog signal is introduced into the distributed control system.

Regulating electric valve

The working principle of motorized valve

The motorized valve is composed of two parts, one part is an electric actuator, and the other part is a valve. The switching power of the valve comes from the electric actuator, and there are two sets of travel switches on the electric actuator. When the electric valve operates for the first time , It is necessary to set the stroke of the on-off valve. After the stroke is set, the electric actuator can automatically stop when it is opened, and the electric actuator can also stop automatically when it is closed to achieve automatic control.

The working principle of motorized valve
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Frequently Asked Question

Do you have any question?

Motorized valve is a power supply to drive the motor rotation, thus opening or closing the valve of a device, and withstand voltage shocks. The rotating range of the electric valve is adjustable. The rotating range can be adjusted by inputting the specified current and voltage signals.

  • Motorized valve is one of the automated valves to help automation easier.
  • The motorized valve uses electric energy as power to switch on the electric actuator to drive the valve to realize the on-off and regulating action of the valve. So as to achieve the purpose of switching or adjusting the pipeline medium.
  • According to the difference of the valve body, it can be divided into: motorized ball valve, motorized butterfly valve, motorized gate valve and motorized globe valve
  • COVNA provides 2 electric actuators for you to choose: Quarter-turn(Part-turn) electric actuator and Multi-turn electric actuator
  • Control Methods: AC/DC power supply, signal control and manual override
  • Voltage: DC-12V, 24V; AC-24V, 110V, 220V, 380V
  • Signal control: 4-20mA, 1-5V, 0-10VDC
  • Seal material: NBR, EPDM, VITON, PTFE and Metal
  • Valve material: Stainless steel 304/316/316L, plastic and cast iron

Motorized valve mechanisms are prevented from advancing too far by using a set of electrical limits which cut the motor supply when a valve is either fully opened or closed. When the valve needs to be adjusted again, the motor's direction is simply reversed to turn the valve in the opposite direction.

COVNA is a motorized valve manufacturer over 22 years in China. We offer motorized ball valve, motorized butterfly valve and motorized gate valve and motorized globe valve for your project. If you have any need about motorized valve, please feel free to contact us.

This little known plugin reveals the answer. Rotary or quarter turn motorized valves are the valve type with the quickest actuation times and typically use a cam or central spindle advance mechanism. These valves are among the most common motorized valve types and include ball and butterfly valve varieties.

Port size range 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 4″  Orifice(mm) 15, 20, 25, 32, 40, 50, 65, 80, 100
End Connection True Union, Double Union Thread Structure T Port / L Port
Voltage DC-12V, 24V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz Voltage Tolerance ±10%
Suitable Media Corrosive media, Water, Air, etc Temperature Of Media -5~80℃ (23℉~176℉)
Working Pressure 1.0 / 1.6 MPa (10 / 16 bar) Actuator Type ON OFF Type, Regulating Type and Intelligent Type


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