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进口电动双密封蝶阀哪家品牌好

进口电动双密封蝶阀Product Description:

The utility model comprises a valve body, a butterfly plate, a maintenance sealing pair and a working sealing pair. The maintenance sealing pair is arranged on the upstream side of the valve body, and the working sealing pair is arranged on the downstream side of the valve body. The working sealing pair includes a working sealing gland, a working sealing ring and a driving device. The butterfly plate is connected with a long valve shaft, and the end opposite to the long valve shaft is provided with a short valve shaft, which can be rotatably connected in the valve body. The long valve shaft is connected with the driving device after passing through the valve body, The working sealing gland is connected with the butterfly plate through screws. High sealing reliability, no damage to the sealing surface and good sealing effect.

进口电动双密封蝶阀characteristic:

The two-way sealing butterfly valve is mainly used in petroleum, chemical industry, chemical fertilizer, power station, metallurgy, papermaking, light industry and other fields. It is used as a cutting and regulating mechanism on the pipeline. It is suitable for gas, liquid and other media. It has the advantages of short switching time and small flow resistance. When the working seal of the butterfly valve needs maintenance, the maintenance seal pair is put into use. At this time, the maintenance and replacement of the working seal can be carried out without emptying the penstock in front of the butterfly valve. The preparation time for emptying and filling water of the penstock in front of the valve does not need to be considered, which greatly shortens the maintenance period of the butterfly valve. The double sealing ring of the existing butterfly valve is not convenient for maintenance, and the sealing surface is not closed frequently, which leads to poor reliability.

进口电动双密封蝶阀Principle:

The manual driving device includes a locking rod, one end of which is inserted into the piston ring and the other end passes through the valve body. The maintenance sealing filler, locking nut, transmission nut, locking seat and locking rod nut are set between the locking rod and the valve body. The maintenance sealing filler is compressed through the maintenance sealing filler pressure cover, the locking rod nut is sleeved outside the locking rod, the locking rod nut is sleeved with a locking seat, and the transmission nut is set on one side of the locking seat, The drive nut is locked by a lock nut. The piston ring is driven manually with pure mechanical structure. When the maintenance seal is put into operation, use a wrench to rotate the transmission nut clockwise to drive the spindle rod nut to rotate, and make the spindle rod drive the piston ring to make a linear displacement to push the piston ring to fit with the butterfly plate seal ring to form a seal.

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