The valve is a fluid conveying system in the control unit. As, regulation, guide, to prevent the reverse flow, voltage stability, the leakage of the shunt and overflow, and other functions. In the field of industrial production, to choose the appropriate valve controls the whole production process is particularly important. With the continuous development of valve technology, valves, broadening the application field, function also more and more perfect, in the face of all kinds of valve type and different application conditions, how will you correct selection of the valve? Option 1 of the valve and valve related technical parameters, such as the valve need medium, melting point, pressure, and valve connection control way; 2, according to the set of technical parameters, calculation chosen conform to the requirements of the valve and choose suitable working condition of the valve; 3, watch manufacturers of after-sales service, at the seller's technical service ability, the attitude of the service ( Need to pay attention to long-term cooperation) 。 The installation of the valve 1, observe the installation environment. Before installing the valve, to observe the space of installation and maintenance, should pay attention to the height of the installation of valve, towards, etc. 2, the specification requirements of the valve. Before installing the valve, the Industrial Valves should be make the rigor of inspection; 3, check the connection of the flange pipe fittings and valves. In the sealing surface must be clean, cannot have any mechanical damage, stains, the size of the flange gasket should choose standard, and conform to the installation, when installation should pay attention to is, and tightening up evenly; 4, after installation of valve, should adjust and test drive and operating mechanism, and make all the action directions of guarantee the accuracy of the normal; 5, officially put into use in the valve before, should check the stuffing, mainly to replace aging packing in time.

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