The safety valve is an automatic valve whose function is to ensure that the machine or equipment is not damaged due to overpressure. The trip pressure of the safety valve should be ~ times the working pressure when the working pressure is high. When the working pressure is high, it should be ~ times the working pressure. When the pressure exceeds the specified value, the valve will automatically open, part of the gas will be removed to restore the pressure, and the valve will automatically close. Before installation, the safety valve should be debugged according to the usage conditions before installation and use. Safety valves are generally calibrated at least once a year. Any problems should be sent to the safety valve manufacturer for maintenance. How to adjust the tripping value of the safety valve
The safety valve should be adjusted on the system, and should not leak under the working pressure, and then be sealed.
Safety valves are divided into spring type and lever type. The sealing between the valve disc and the valve seat of the spring-type safety valve relies on the force of the spring, while the sealing of the lever-type safety valve relies on the force of the weight through the lever. The spring-type safety valve changes the compression degree of the spring through the upper adjustment screw. When the spring is compressed, the take-off pressure increases. After the take-off pressure is adjusted, the locking nut should be tightened to prevent the adjustment screw from loosening and allowing the take-off pressure to change on its own. At the same time, the cover should be covered and sealed with lead, and no further changes should be allowed. The lever type safety valve adjusts the tripping pressure by changing the position of the weight on the lever or changing the weight of the weight. After adjustment, it should be fixed and placed in an iron box for protection to prevent unauthorized movement.
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