1) Decomposition method ( 1) The spring of a) Open valve cover, loosen the lock nut, according to the adjusting bolt counterclockwise, as to achieve the free state of adjusting bolt. b) Spring cover retaining bolt, spring open decomposition, decomposition of spring and spring in sequence. ( 2) Diaphragm department unscrew the locking bolt on the Industrial Valves stem, spring seat, can get rid of the diaphragm, and can break down the guide seat on the valve stem. ( 3) Unscrew the seat and disc department used to fixed bolts on the seat of the fixed plate, can decompose the fixed plate, and can also break down the stem, seat and disc. At this time we should pay attention to the breakage of the seal with o-rings. 2) Abnormal measures ( 1) Cause fault is the main reason of the pressure reducing Industrial Valves pipe sand, dust and other foreign body. So must through by-pass and filters out foreign bodies. ( 2) Also pressure gauge failure happens, by-pass valve leakage, filter blockage, and so on and so forth. The steam pressure reducing valve is a failure occurs under the measures should be taken. Sliding parts is not smooth. After decomposition, with super fine sand paper to grind the valve stem guide seat and seat sealing parts. The main valve parts ( Disc and seat) The foreign body or depression. The seat and guide part o-rings are destroyed. Diaphragm is damaged ( Spring cover part of the water) Export induction hole is blocked. Decomposition after removal of foreign bodies, impossible when grinding or replacement. Replace o-rings after decomposition. To change the diaphragm after decomposition. Hole after decomposition. The exhaust valve on the valve body is loose or damaged, damaged washer on the wall. Tighten the loose parts, the replacement of damaged parts. Use gas to liquid when the diaphragm pressure chamber. Using the air plug, remove the diaphragm chamber in the air.
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