b。 Required flow and the actual flow differ too much. b。 Regulating spring strain or the adjusting range is more than spring up and down limit. Solution: change the new diaphragm. Solution: try our best to maintain the inlet pressure in the smaller range flap. 2. If the valve itself does not take pressure gauge, shall be installed in the valve before the valve after pipe pressure gauge. Solution: change cylinder liner and piston. d。 Diaphragm destroyed. Solution: the new calculation flow, choose to adapt to the diameter. 一个。 The piston stuck. Solution: eliminate utterly between cylinder and piston dirt. Solution: cleaning away dirt. c。 Master, pilot valve sealing faces have dirt stuck tight. 一个。 Inlet pressure flap range is too big. 4. After the valve pressure instability. Solution: change the new or fitting for spring. Method: the main and pilot Industrial Valves stem yarn paper mill small diameter. b。 Master, pilot valve stem stuck in the guide hole. 一个。 Cylinder liner and piston clearance is too large. Such things like ordinary for channel congestion, dirt can eliminate utterly channels. Fully flush piping, and to reduce the pressure valve flushing, given the low pressure valve store placed a long time, to reduce the pressure valve inside adequately distinguishes clearly to wash. Second, the common faults and maintenance method 1. Media have no way to pass or pass over limited is very small. 。 4. Before installation must pay attention to the direction of the arrow on the valve body, the arrow pointing in the direction of media flow, can't put wrong if the medium including impurities, is likely to be congestion valve hole, 1 m in front of the lower pressure valve inlet pipe installation filter, filter mesh in more than 20 mu best. 3. In order not to affect the use of lower stress effect, at the same time thinking about problems to protect the convenience of installation, ordinary reducing pressure valve shall be installed on the level piping, pipe reducing pressure valve for inversion. 3. There is no way to adjust pressure. 5. In order to avoid the valve pressure to overpressure after an accident, reduce the pressure valve outlet 4 meters shall install safety relief valve. 2. Straight through. Q: reducing pressure valve and breakdown maintenance to install a: a, 1 to install. Reduce pressure valve before installation, metal brand Marine valve whether certificate and valves is consistent, if there is a serious damage to surface. 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 Industrial Valves, gate valve, globe valve, check valve, relief valve, safety valve, Marine Industrial Valves, oil valve, hydraulic control valve and other kinds of valves.
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