Solenoid valve installation and method for improving life

Stainless steel solenoid valve installation
The following issues should be emphasized in the installation process of the solenoid valve:
(1) Before installing the solenoid valve, the dust accumulated in the valve storage period must be carefully cut off, and it must be cleaned during the installation process. Because dust impurities can damage the valve seat and internals. In order to protect the cleanliness, the cover can be attached to the end of the open flange that is not welded on the day.
(2) When the solenoid valve is installed, the arrow on the valve body should be consistent with the flow direction of the medium.
(3) Solenoid valves are delicate components, and if they are subjected to stress from pipe deformation, normal work will be destroyed. Therefore, the flange and pipe installation should be vertical and positioned to avoid deformation of the pipe. Well, the pipe should be properly supported to avoid it being deformed under the weight of the valve.
(4) Stainless steel solenoid valves must be strictly rigorous when welding with pipes. If the solenoid valve is not sufficiently focused on the welding of the pipe, the deformation will occur if the stress is not removed. When welding, the welding slag must be strictly prevented from splashing into the valve. The existence of the welding slag will damage the function of the valve. If the splash directly splashes on the valve core, it will directly affect the action of the solenoid valve, and damage the valve core and the valve seat.
(5) When the pipeline is tested and blown out, the adjustment valve should be removed and connected with the straight pipe section to avoid welding debris, iron cutting and other debris between the valve core and the valve seat. The end of the removed solenoid valve flange is smoothed with plastic cloth.
1) The large opening work delay life method allows the solenoid valve to work as much as possible on the maximum opening, such as 90%. Thus, cavitation, erosion, and the like occur on the head of the spool. Following the destruction of the spool, the flow rate is increased, and the response valve is closed again. This incessantly destroys and slowly blocks, so that all the spools are fully operated. At the same time, the large opening work saves a large gap and the erosion is weakened, which is better than one road. Let the valve work at the center opening and small opening to increase the life by 1~5 times. If a chemical plant adopts this method, the valve's operating life is increased by 2 times.
2) Decrease S to increase the working opening and increase the life method. After the valve is installed, the orifice plate saves the pressure drop; the manual valve connected in series is blocked until the solenoid valve obtains the ideal working opening. This method is very simple, convenient and useful when selecting a large-scale valve for a small opening.
3) Reducing the caliber to increase the working opening and increasing the life method. The diameter of the solenoid valve is reduced to increase the working opening. The specific method includes: 1 changing a small first-diameter valve, such as DN32 to DN25; The valve body is not changed, and the valve seat of the solenoid seat diameter is changed. If a chemical field is overhauled, the dgl0 will be changed to dg8, and the life expectancy will be doubled.
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