As one of the most commonly used valve type of industrial valves, butterfly valves are widely used in low pressure, large diameter. The 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. As a kind of butterfly valve type, pneumatic 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 valve has good flow control characteristics. Elastic sealing valve, sealing ring can be embedded in the body or attached to the butterfly plate peripheral. Pneumatic butterfly valve common faults and elimination method: 1, before installation way confirm SENMI product performance, and whether the medium flow arrow is consistent with the movement conditions, and the valve cavity clean, do not allow foreign impurities in sealing ring and disc attached, before cleaning must not allow closing butterfly plate, so as not to damage the sealing ring. 2, pneumatic butterfly valve installation supporting disc Industrial Valves special flange, flange recommended HGJ54 - namely The type 91 socket welding steel flange. 3, pneumatic butterfly valve installed in the pipeline position, good location for the vertical loading, but can't flip. 4, pneumatic butterfly valve used in traffic needs to adjust, has controlled pneumatic actuators. 5, on and off a lot of manual butterfly valve, in 2 months time, open the worm gear case cover, check whether the butter is normal, should keep the right amount of butter. 6, check the connection parts required pressure, namely the packing sealing, guaranteeing stem flexible rotation. 7, metal sealing pneumatic butterfly valve is not suitable for installation in the end of the pipe, such as must be installed in the end of line, take equipped with export hair, prevent the backlog of sealing ring, too. 8, stem installation using regular check valve using effect, find fault in a timely manner to eliminate. In many factories and workshops, equipment maintenance and maintenance has asked to be institutionalized and standardized, pneumatic butterfly valve, although just a common valve device, but in order not to affect use, prolong service life, everyday is little not necessary maintenance measures, so, what exactly and maintenance measures have? Maintaining maintenance, preventive maintenance, although not every day, but in order to keep the pneumatic butterfly valve can satisfy the use requirements, don't let a person suddenly strike off guard, so can do daily maintenance, is essential to arrange personnel to check on a regular basis. Pneumatic butterfly valve preventive maintenance includes the working conditions of valve is normal, is applied to the control processing of chemical medium fluid valve to check the corrosion situation, operation has no noise, valve sealing is good, did the valve closed fluid leaks, etc. , used in hydraulic power plants of pneumatic butterfly valve and check valve switch have blocked, if there is blockage to clear in time, otherwise it affect the use effect of pneumatic butterfly valve. Second, maintenance and repair of mechanical equipment malfunction or something is inevitable, in addition to need to clean them regularly for pneumatic butterfly valve, and ensure that the Industrial Valves seal are in good condition, and regularly check on the performance of the pneumatic butterfly valve, conditional word can best of pneumatic butterfly valve testing equipment and instruments. Malfunction in time looking for a professional maintenance staff to repair and replacement of damaged parts, it is also important before failure of predictive maintenance work. The service life of pneumatic butterfly valve and the quality of the product itself quality, later maintenance is in place, is there in the correct method of use is concerned to operate, etc. This article by all standing valve technology and news releases jointly
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