1) Decomposing method (1) Spring part a) Open the valve cover, loosen the locknut, and turn the adjustment screw anticlockwise to make the adjustment screw free. b) Open the spring cover fixing bolts, disassemble the spring cover and disassemble the spring seat and the spring in sequence. (2) Septum Department unscrew the locking bolt on the stem, break down the spring seat, you can get rid of the diaphragm, and can break down the stem on the guide seat. (3) The valve seat and valve disc parts unscrew the bolts used to fix the valve seat fixing plate, the fixing plate can be disassembled, and the valve stem, the valve seat and the valve disc can be simultaneously disengaged. At this time should pay attention to seal O-ring damage. 2) Abnormal measures (1) The main reason causing the pressure reducing valve to malfunction is sand, dust and other foreign substances in the pipeline. Therefore, we must clear the foreign matter through the bypass and the filter. (2) Malfunction of pressure gauge, leakage of bypass valve and clogging of filter may also occur. Steam pressure relief valve The following is a measure to take when a fault occurs. Faults Causes of failure Measures Outlet pressure does not reach the set pressure 1. When the product is shipped from the factory, the set pressure is not adjusted 2. Sliding parts are not smooth. 1. An sixth adjustment pressure 2. Decomposition, the use of ultra-fine sandpaper stem guide seat and seat sealing parts. The outlet pressure exceeds the set pressure 1. The main parts of the valve (disc and valve seat) on the clip foreign body or depression. 2. O-ring on seat and guide is damaged. 3. Diaphragm is damaged (spring cover part of the water) 4. Exit sensor hole is blocked. 1. Removal of foreign body after decomposition, grinding or replacement impossible. 2. Replace the O-ring after disassembly. 3. Replace the diaphragm after decomposition. 4. Through hole after decomposition. Body parts have liquid leakage 1. Exhaust valve on the valve body is loosened or damaged, plugged gaskets damaged. 1. Tighten the loose parts and replace the damaged parts. Vibration or noise 1. Diaphragm gas pressure chamber occurs when using liquid. 1. Use air plugs to remove air from the diaphragm cavity.
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