On the principle of electric valve sealing performance

Electric valve structure is simple, by only a few parts, materials consumption province, small size, light weight, small size, installation, drive torque, pressure regulating valve, simple, agile, simply rotate 90 ° to quickly start closed; and also also has a good flow regulation efficacy and closed sealing characteristics, in large and medium-caliber, low pressure areas of application, is the leading electric ball valve situation.
Electric valve with elastic sealing two kinds of sealing and metal seal type. Elastic sealing valves, strap seals can be mounted on the body or attached to the disc periphery. Take the metal sealed valves generally higher than the elastic sealing valves, long life, but it is difficult to achieve a complete tamper evident tapes. Metal seal can accommodate the higher operating temperatures, with a temperature limit shortcomings.
If the request is dominated electric valve used as a flow, it is important to choose exactly the size and type of valve. Electric valve construction principle is particularly suitable for manufacturing large diameter valves. Electric valve not only in oil, gas, chemical, water treatment and other general industries widely use, but also the use of the thermal power plant cooling water system.
Commonly used with clip-on electric valve electric valve and flange type electric valve two kinds. Clip-on electric valve is connected to the valve stud two pipe flanges, flange type electric valve is a valve with a flange bolts on both ends of the flanges of the valve in the pipe flange convergence.
The strength properties of the valve is the valve can be sustained media pressure. Pressure valves are suffered mechanical products, which must have sufficient strength and rigidity to ensure the long-term use without causing break or deform.