The electric soft sealing butterfly valve definition
Mar 12,2015 丨 点击次数:2451
The electric soft sealing butterfly valveIs made with the rotating circular disc for opening and closing of the valve orange, in order to realize the opening action of main block valves use pneumatic valve, can be designed to have a adjustment or section of the valve and the adjustment function, the dish valve in the low voltage and medium caliber pipe on the use of more and more.
Electric soft sealing butterfly valve is used with the rotating circular disc for opening and closing of the valve orange, enabling action in order to realize the main block valves use pneumatic valve, can be designed to have a adjustment or section of the valve and the adjustment function, the dish valve in the low voltage and medium caliber pipe on the use of more and more.
Working principle:
Electric soft sealing butterfly valve is used with the rotating circular disc for opening and closing of the valve orange, enabling action in order to realize the main block valves use pneumatic valve, can be designed to have a adjustment or section of the valve and the adjustment function, the dish valve in the low voltage and medium caliber pipe on the use of more and more.
The main advantage of the electric soft sealing butterfly valve, simple structure, small volume light weight, low cost, the pneumatic this characteristic is especially significant, hard seal butterfly valve installed in the upper air tunnel, through two five-way solenoid valve control is easy to operate, also can adjust the flow medium.Fluid resistance is small, large diameter pneumatic disc valve fully open the effective flow area is larger, easy opening and closing fast, disc pull rotation Angle of 90 to complete opening and closing, due to the rotation axis disc plate hand medium force nearly equal, and the torque in the opposite direction, thus opening and closing torque is small, low pressure can achieve good sealing, disc valve sealing material is nitrile butadiene rubber, fluorine rubber, rubber, four fluorine lining so sealed performance is good, which is suitable for soft hard cascading metal hard seal butterfly valves with metal sealing and elastic sealing heavy advantage, no matter under the condition of low temperature all have good sealing performance.Electric soft sealing butterfly valve butterfly plate installed on the diameter of the pipe direction.Cylindrical channels in butterfly valve body, disc disc around the axis of rotation, rotation Angle for 0 ° ~ 90 °, rotate to 90 °, the valve is fully open.Electric soft sealing butterfly valve has simple structure, small volume, light weight, only by a few parts.And only need to rotate 90 ° can rapid opening and closing, simple operation, at the same time the electric valve has good flow control characteristics.Butterfly valve in the fully open position, the butterfly plate thickness is medium flows through the body when the only resistance, thus produced by the valve pressure drop is small, it has good flow control characteristics.Butterfly valves have a seal and metal seal two kinds of seal type.Elastic sealing valve, sealing ring can be embedded in the body or attached to the butterfly plate peripheral.
Using metal seal valve generally live longer than elastic sealing valve, but it is hard to be completely sealed.Metal sealing can adapt high working temperature, elastic seal has the defect of being limited by the temperature.
Electric soft sealing butterfly valve features:
1, this valve adopts double eccentric structure, have the close tight sealing function, sealed performance is reliable.
2, nitrile oil resistant rubber sealing deputy stainless steel material selection and matching, long service life.
3, rubber sealing ring can be located in the body, can also be located on the butterfly plate and applicable characteristics of different media, for the user to choose from.
4, the butterfly plate adopts frame structure, high strength, large flow area, small flow resistance.
5, the overall of the lacquer that bake, can effectively prevent rust and replace the sealing seat sealing materials, can be used in different medium.
6, this valve has two-way sealing function, installation time is not controlled by the medium flow direction, and is not affected by spatial location, can be installed in any direction.
7, this valve structure unique, flexible operation, and more convenient.
Electric soft sealing butterfly valve advantages:
1, easy opening and closing rapidly, energy saving, fluid resistance small, can often operate.
2, simple structure, small volume, light weight.
3, can transport the mud, the apertures least accumulated liquid.
4, low pressure, can achieve good sealing.
5, good regulation performance.
Electric soft sealing butterfly valve disadvantages:
1, working pressure and working temperature range is small.
2, poor sealing.Butterfly valve can be divided into the form of the structure of offset plate, vertical plate, inclined plate and lever.
