How to install eccentric butterfly valve

     Installation instructions for use

    Eccentric butterfly valve is divided into single eccentric butterfly valve, double eccentric butterfly valve, three eccentric butterfly valve, variable eccentric butterfly valve. Compared with theconcentric butterfly valve. The stem axis deviation from the disc center and the center of the body at the same time, the sealing pair for oblique vertebral become eccentric butterfly valve butterfly valve.

    1.Before installation, check valves must sign the certificate meets the requirements, after verification should be cleaned. The use ofthe valve should be stored in dry indoor not installed. Storage timeof the valve, should be regularly cleaned, dried, coated anti rust oil. Application of blind plate at both ends of the valve flange sealing surface protection.

    2.Install, according to the flow direction of medium priority forhorizontal installation.

    3.Connecting bolts, the butterfly valve and the pipeline, should be installed according to directions several times to tighten thediagonal, no single once tightened, to prevent uneven stresscaused by the flange leakage.

     4.Butterfly valve installation, should be based on the butterfly plateis in the closed position is appropriate, to prevent debris into the valve chamber to rub the wound sealing surface, the user to test the pressure, cut to pressure to clamp installed after the test withflange.

Universal-joint

      5.The valve and pipeline connection, requiring the use of weldingsteel flanges or butterfly valve flange for pipeline. If the weldingsteel flanges, flange gasket must be hole and inner hole as big,so as to ensure the effective sealing washer.

      6.Electric butterfly valve control mechanism has been factoryopen close travel adjustment, in order to prevent the power on the wrong direction, the user first before turning on power, need tomanually open position at the beginning of 1/3. And check the instructions set the direction and the valve opening direction is consistent.

     7.The valve is in use, if discover fault, should immediately stop using.

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