Electric plug valve is closed or a plunger-shaped pieces of a rotary valve, the valve by rotating 90 degrees to the channel mouth stuffed with the body's openings on the same or separate, to achieve open or close a valve.
(1) Electric plug valve fluid through the DC resistance is small, easy to open and close quickly.
(2) Electric plug valve is the earliest history been used valves. As the structure is simple, open and close quickly (plug rotation 1/4Q ring opening and closing movements can be done), easy to operate, fluid resistance, which is still widely used. Currently used in low pressure, small caliber and medium temperature is not high in the case.
(3) Electric plug valve in the pipe is mainly used for cutting or change in media distribution and flow direction. It is easy to adapt to multi-channel structure, as well as a valve can be two, three, even four different flow channel, which can simplify the design of piping systems, reducing the amount of valve gate and the equipment needed to connect a number of accessories.
(4) According to the electric plug valve design of the structural features and functions that can be achieved, according to the following principles can be used.
① for distribution media and change the flow direction, the temperature is not higher than 300 ℃, nominal pressure PN ≤ 1.6MPa, nominal diameter less than 300mm, suggested the use of multi-channel electric plug valve.
② milk, juice, beer and other food industry and pharmaceutical companies such as equipment and pipelines, suggested the use of austenitic stainless steel, tight-set conical electric plug valve
③ oil exploration, gas field development, pipeline transportation of the branch pipe, refining and cleaning equipment, the nominal pressure level of not more than Class300, nominal diameter less than 300mm, suggested the use of cone-shaped seal-type electric plug valve.
④ oil mining, natural gas, piped manifold, refining and cleaning equipment, the nominal pressure level of not more than Class7500, nominal diameter less than 900mm, temperature no higher than 340 ℃, suggested the use of cone-shaped seal-type electric plug valve.
⑤ In the gas, natural gas, HVAC systems and equipment in the pipeline, the nominal diameter of not more than 200nm, should use packed-type conical electric plug valve.
see more electric plug valve onclick here:http://www.51orders.com/showroom/Electric-Plug-Valve.htm