regulator maintenance there are two types of preventive and breakdown maintenance. Preventive maintenance is a method of preventive maintenance in the regulator is not on time when a failure occurs. Its purpose is to prevent it to happen. People usually according to the different operating conditions of the regulator to produce the corresponding fault. Preventive measures, troubleshooting, can greatly reduce the probability of failure; Fault maintenance, also known as passive maintenance, is a kind of maintenance methods, failure occurs when the regulator, due to equipment failure maintenance often leads to the production process to stop. Preventive maintenance is during the installation and use of the regulator to maintain operating experience of the past. It can be understood as the daily maintenance, usually includes: eliminate, check, clear, overhaul, etc. Stress relieving: due to the combination or improperly installed, can produce all kinds of stress. The stress on regulating valve and pipeline, it is easy to influence the performance of the regulating valve. In severe cases, it will affect the control system itself, resulting in the valve stem and guide. The part deformation, can't and the seat of the; For split type valve body, valve flange can release; Stress can also lead to the seat leakage. Check safety operation: check the explosive dangerous location using the regulator valve and related accessories, for example, sealing cover are tight, safety gate operation, power supply, etc. , to ensure that the regulator and related accessories can be safely. Check stents: install regulator is the best place to position the valve stem in a vertical plane, located above the valve actuator. If the regulator must be installed on the valve stem horizontal mobile location, or the movement direction of the valve stem and the horizontal plane with a certain Angle, should support the actuator in order to make the valve stem parts of the regulator in a natural state. If you do not support or brace was not correctly installed, the valve stem and valve seat may be distracted, which may lead to filler failure or leakage. To remove or prevent foreign bodies from entering the: always check valve and pipeline connection for rust, welding slag, dirt, etc. , and immediately after the found to remove it. Because the valve closed, a small piece of rust or welding slag is enough to damage the welding good seat sealing surface, the dirt can lead to valve core and valve seat wear, affecting its normal operation. Preventive maintenance and oil: packing and lubricator need in a short period of time to adjust. In the case of dust, boxes and guide part should be made of plastic casing or the rubber protection around the stem. Corrosive gas or liquid droplets, special protection measures should be taken. Under normal circumstances, the control valve with anticorrosive bag, but does not influence its operation. In the requirements of the refractory cases, can use special refractory coating, fire bags, etc. Fire bag materials contain multilayer ceramic fiber or glass fiber. Transportation and storage: special valve regulating valve application support to prevent loosening and ensure that the overall vertical or horizontal position. If long-distance transportation, had better use solid wooden cases transportation. If regulators cannot or do not meet the operation requirements, suggests that there is fault, must repair. In the case of can't confirm the cause of the problem, often can according to the cleaning, disassembly, test and test again to perform maintenance.

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