Stick to the spirit of ingenuity CNC precision machining 20 years of technical engineer guidance
High-tech foundation Insist on innovation and development Senior technical talent team
Torque up to 4678nm Senior technical guide selection Special customization according to customer needs
ISO9001 international certification Adhere to standardized production processes 1 million cycles durability test
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.
● The valve is widely used in food, environmental protection, light industry, petroleum, paper, chemicals, teaching and research equipment, and electric power industries of industrial automation control systems
● The actuator has very good sealing performance to avoid accidents caused by gas leakage
● Excellent explosion proof performance
The workmanship is in place, and the quality is very good at a glance!
Regular customers, the cooperation has been very happy!
The workmanship is fine, the size is right, the design is in place, and the service is attentive and attentive!
Butterfly valve is one of the most commonly used valves in industrial production pipeline systems. The main components are valve body, valve seat, valve stem, butterfly plate and transmission device. There are many types of butterfly valves, and their classification methods are also diverse.
The butterfly valve is opened and closed by operating the transmission device to rotate the valve stem, and at the same time the valve stem drives the butterfly plate to rotate. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate is connected to the valve stem. The rotation of the valve stem will drive the butterfly plate to rotate for flow control. The rotation angle is between 0 degrees and 90 degrees. When the butterfly plate rotates to 90 degrees The butterfly valve is in the fully open position in the pipeline. At this time, only the thickness of the butterfly plate is the only resistance for the fluid to pass through. The flow resistance is very small. At the same time, when the rotation angle of the butterfly plate is between 0-90, it can be used to adjust the medium. flow.
The difference between a ball valve and a butterfly valve The biggest difference between a butterfly valve and a ball valve is that the opening and closing part of the butterfly valve is a plate, while the ball valve is a ball. The valve plate of the butterfly valve and the spool of the ball valve rotate around their own axis; the ball valve The sealing surface is a spherical surface.