Globe valve common failure reasons for the prevention and elimination method to the flow direction of medium leakage sealing surface is wrong, erosion seal face according to the flow arrow or installation, the form of the structure or medium (imported from under the seat In addition to the individual design medium from the imported seal face, seat dirty out) Plane sealing surface crack scour easily deposited dirt off the left several times and then close the taper sealing deputy different heart to correct assembly, stem and disc or throttling taper on the same axis, seat, the valve stem to bend straightening lining sealing surface damage, aging regular inspection and replacement liner, closing force should be appropriate so as not to crush needle valve sealing surface failure avenues to choose wrong, not suitable for the viscosity of the medium small diameter are cleared eyewinker plug removal or break-up disc Industrial Valves, throttle taper off corrosive medium should avoid to choose rolling, wire connection is closed valves, should shut down after falling off a repair, steel wire should be changed to stainless steel wire stem nut or trapezoidal thread damaged stem improper selection, is medium corrosion, should choose correct Industrial Valves structure; Operating force, especially small diameter globe Industrial Valves and throttle valve; Trapezoidal thread damage should be replaced in a timely manner after the throttle is allowed to not zero scale, scale loss should alignment to zero scale, scale should be loose or missing after the repair and supplement the throttling cone erosion seriously to correctly select material and heat treatment, flows to, the operation to correct
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