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Valve leakage prevention measures
We must first understand how to deal with the valve leaking, leak steam, we must first understand why there will be leakage, leakage steam, is the so-called knowledge of the natural and know why. Valve to maintain air tightness, must have a good seal. If there is a problem with the seal, there will be a leak. Valve as a fluid transfer system control components, with cut-off, regulation, diversion, to prevent the countercurrent, voltage regulator, shunt or overflow pressure relief and other functions, is the indispensable control of many industrial and mining components, and valves in the event of failure, especially The occurrence of a spill will not only affect the stable operation of industrial and mining equipment, but even worse, it may endanger the environment and cause immeasurable economic and social losses to the community. Must learn to identify and prevent common valve leakage problems, in general, the valve common leakage problems include two, namely stuffing box leakage and closure leakage. Stuffing box leaks are the main aspects of running, running, dripping, and leaking, often seen in the factory. Valve leakage, leakage of the precautionary measures. 1. All valves must be subjected to different levels of pressure test after entering the factory. 2. All valves must be installed before installation of the appropriate level of gasket. 3 in the process of overhaul must carefully check whether to add packing, packing gland is tightened. 4 valve before installation must check the valve for dust, sand, iron oxide and other debris. If the above debris must be cleaned before installation. 5. There is a need to disassemble the valve must be ground. 6. In the valve installation process, all valves must be installed according to the system, the pressure is correct, is strictly prohibited to mix, mixed. For this purpose, all valves must be numbered by the system before installation and documented. 7. In the installation of the flange door fasteners must be tightened, while tightening the flange bolts must be fastened in the direction of symmetry. Common failures we can take effective measures to prevent, but more importantly, to choose high-quality high-standard products, so you can save mining more time and effort.