3, reversing valve, valve core, core variant leak. 2, packing leak leakage comprised: ( 1) Packing into the stuffing box and valve stem back emergency contact, but this contact is not very average, a little loose parts contact, a little part contact tightly, even on a site did not contact. Solution: will the locator fixed firmly; Good electrical interface tightly closed; Growth to purify the air quality, regular drainage drainage. Solution: valve core, the seat selection corrosion resistant material. ( 2) There is relative motion between stem and packing, with high temperature and high pressure and the influence of porous media, cause the packing leakage. If the variant is serious, can only change valve core and valve seat. ( 3) Packing contact pressure decay gradually, their comprised, such as media will leak outward from the gap. 。 ( 2) Stuffing box to smooth contact with the packing appearance, abrasion loss packing. 4) Electrical interface tightly closed very bad, the rain will locator coil short circuit or open circuit. Solution: ( 1) Convenient for filler loading, at the top of the stuffing box chamfering, the gap in the stuffing box placed at the bottom of the erosion resistance of smaller metal try our best to take care of ring, in order to avoid packing cut by media. core and valve seat leakage comprised largely because the regulator produces in the process of casting or casting lack can result in the increase of the corrosion and corrosion medium, flushing fluid medium, initiation of valve core, the seat material erosion and shock, valve core, seat variant ( Or wear) Don't form a, entities, spills. Variant is not serious abrasion, usable fine sandpaper grinding, eliminate remnants, increased roughness. Leaks in the valve comprised: gas valve, the valve stem is too long and the valve stem is too short, the valve stem aspirant ( Or down) The distance is not enough, lead to between valve core and valve seat hole mouth, can not be a good contact, closed lax caused leak. Three-way reversing valve positioner fault locator is deem appropriate and use the nozzle baffle technology principle, the following failure often occur in common: 1) Zero devices affected by temperature, oscillation, which leads to the exhortation Industrial Valves flap. ( 3) Flexible its chosen as the filler, it has good air tightness, friction small, small variant, the new unique place such as friction did not change after fastening. Marine valve solutions: should be reduced ( Or longer) Regulating valve stem the stem length is appropriate, so that it is no longer leak. 3) The elastic coefficient of springs is changed, which leads to the exhortation nonlinear valve stem. Q: a: the common failures trigonometry reversing valve 1, leaks in the valve, the Industrial Valves stem jagged uncomfortable. 2) Nozzle were foreign body congestion, the locator can't normal office. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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