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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.
(1) Adopting double eccentric structure, with tighter and tighter sealing function, and reliable sealing performance.
(2) The sealing material is made of stainless steel and nitrile oil-resistant rubber, which has a long service life.
(3) The rubber sealing ring can be located on the valve body or on the butterfly plate. It can be applied to different characteristics of media for users to choose.
(4) The butterfly plate adopts a frame structure with high strength, large flow area and small flow resistance.
(5) The overall baking varnish can effectively prevent corrosion and can be used in different media as long as the sealing material of the sealing valve seat is replaced.
(6) This valve has a two-way sealing function, and it is not controlled by the flow direction of the medium during installation, and is not affected by the spatial position. Can be installed in any direction.
(7) It has the advantages of small size, light weight, reliable performance, simple matching, and large flow capacity, which is especially suitable for clean liquids and gases.
Commonly used electric butterfly valves include wafer type electric butterfly valves and flange type electric butterfly valves. Wafer type electric butterfly valve uses double-head bolts to connect the valve between two pipeline flanges. Flange type electric butterfly valve is equipped with flanges on the valve, and the two ends of the valve are flanged to the pipeline flange with bolts.
COVNA HK60-D-P electric plastic pvc butterfly valve, standard on/off control, 4-20mA or 0-10VDC modulating control is available, UPVC or PVC body construction, optional CPVC, 220VAC standard voltage, minimum 2 inch lug connection, default NBR seat, suitable for most air, water, light oil, fuels, solvents, alcohol and many acids, EPDM seat is optional. Low Weight, Low Cost, Anti-Corrosive & Food Safe. Easy to operate and with a convenient modular design for gas or liquid piping system.
COVNA HK60-D-F electric flange butterfly valve, standard on/off control, 4-20mA or 0-10VDC modulating control is available, cast iron body construction, disc material optional ductile iron,stainless steel 304 or 316L. 220VAC standard voltage, minimum 2 inch flanged connection, NBR seat, suitable for most air, water, light oil, fuels, solvents, alcohol and acids, EPDM or VITON is optional.
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Electric butterfly valves belong to a variety of electric valves and electric regulating valves. It is an important execution unit in the field of industrial automation control. Main purpose: Control of flow, pressure and temperature of various industrial automated production pipelines. For example: electric power, metallurgy, petrochemical, environmental protection, energy management, fire fighting system, etc.
Different. Electric butterfly valves belong to a variety of electric valves and electric regulating valves. It is suitable for occasions that require flow adjustment. Solenoid valve is an industrial equipment controlled by electromagnetic, used in industrial control system to adjust the direction, flow, speed and other parameters of the medium.
The electric butterfly valve is composed of a valve composed of an electric actuator and a butterfly valve, so it has the advantages of simple operation and simple structure of the butterfly valve, and is also widely used in chemical, pharmaceutical and other industries. The working principle of the electric butterfly valve: the valve stem is driven by an electric device to make the butterfly plate produce a 90° rotation movement to achieve the opening and closing of the valve.