Features
Why Choose COVNA?
Exquisite craftsmanship
Stick to the spirit of ingenuity CNC precision machining 20 years of technical engineer guidance
Technological innovation
High-tech foundation Insist on innovation and development Senior technical talent team
Special custom
Torque up to 4678nm Senior technical guide selection Special customization according to customer needs
Consistent quality
ISO9001 international certification Adhere to standardized production processes 1 million cycles durability test
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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.
Best Solenoid Valve
The solenoid valve can cooperate with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. Different solenoid valves play a role in different positions of the control system. The most commonly used ones are check valves, safety valves, directional control valves, etc.
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Frequently Asked Question
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There is a closed cavity in the solenoid valve with through holes at different positions. Each hole leads to a different oil pipe. In the middle of the cavity is the valve. On both sides are two electromagnets. Where it is attracted, by controlling the movement of the valve body to block or leak out the different drain holes, and the oil inlet hole is normally open, the hydraulic oil will enter the different drain pipes, and then push the oil through the oil pressure The rigid piston, the piston drives the piston rod, and the piston rod drives the mechanical device to move. In this way, the mechanical movement is controlled by controlling the current of the electromagnet
The solenoid valve is the control element, mainly used to control the cylinder. There are also analytical instruments or other spray guns used to directly control the gas. Solenoid valves are divided into two types: pneumatic and hydraulic. The working methods are the same, but the medium is different. The working principle is to open several holes in a valve body, and then use electromagnetic induction to control the movement of the valve stem to control which hole is blocked, or which hole is let out. In order to achieve the purpose of control.
Common uses. Solenoid valves are used in fluid power pneumatic and hydraulic systems, to control cylinders, fluid power motors or larger industrial valves. Automatic irrigation sprinkler systems also use solenoid valves with an automatic controller.
Our updates and blog posts
solenoid-valve | Where the butterfly valve is applicable
{keyword},Butterfly valves are suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, it is about three times that of the gate valve.
solenoid-valve | How to choose electric butterfly valve
{keyword}.The disc of the butterfly valve is that the disc has a shaft rotating on the position of the valve seat. The angle of the rotation determines the opening and closing degree of the valve.
solenoid-valve | Gate valve movement
{keyword},Most gate valves are forcibly sealed, that is, when the valve is closed, the gate must be forced against the valve seat by external force to ensure the tightness of the sealing surface.