feeding Industrial Valves common faults ( Elimination method)

common faults

why

method

leak ( Refers to the disc and the valve seat sealing surface leakage) The sealing surface damage due to abrasion. Remove the dirt on the surface of the disc and seat sealing, wash clean with kerosene. Reprocessed or grinding disc and seat sealing surface.

leakage ( Leaks in the packing) Packing gland without pressure. Insufficient packing laps. Tighten packing gland nut evenly, packing pressure, pay attention to not be too tight. Remove the packing gland and pressing sleeve, increase packing laps, again appropriate pressure. Change the new packing, staggered joint note in the correct way.

the handwheel ( Or the handle) Too tightly on the packing. Packing gland or pressing sleeve installation askew, jam the valve stem. The valve stem threads or stem nut damage or adherent dirt. Stem bending. Appropriate unscrew packing gland nut, make packing relaxation. Recalibration gland and pressing sleeve installation. Rebuild the stem thread and stem nut, remove dirt, coated with butter. Such as badly damaged cannot repair should replace the valve stem or stem nut. Nuclear is the Industrial Valves stem.

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