Pressure relief valve X45X-16T Shanghai brass valve Gaoqiao manufacturer

Product Introduction
This product is installed in the water supply system and used in conjunction with the water pump to ensure that the water pressure of the water supply system does not exceed the specified pressure and ensure the safety of water supply pipelines, valves and other equipment.
Working Principle
The direction of water flow is from left to right, and the water is controlled to flow through the needle valve into the upper chamber of the valve body, and then come out from the upper chamber through the pilot valve to the outlet. When the inlet pressure rises, the pressure is transmitted to the pilot valve control chamber and opens the pilot valve, causing the upper chamber of the main valve to release pressure, and the main valve opens to relieve pressure. When the pressure drops below the set value, the pilot valve closes, and the main valve upper chamber When the cavity pressure is close to the inlet pressure, the valve disc closes downward due to the area difference, and the main valve closes accordingly. The screw on the pilot valve is used to adjust the pressure value of the pressure relief. If the leakage volume changes, the pressure in the pipeline will remain basically unchanged. The error value is about . When the pressure in the pipe is lower than the set value, the valve starts to close. When the pressure in the pipe is lower than the set value, it is fully closed.
( r Operating pressure:. Operating medium: clean water Medium temperature: ℃ Pressure adjustment range: Opening and closing error:. Unit
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( r When installing, pay attention to the direction of the water flow to adjust the opening of the needle valve: first tighten the needle valve clockwise until it cannot be turned, and then return it half way Between two turns, the knob must not be arbitrarily changed after adjustment. Loosen the nut on the pilot valve. Tighten the screw on the pilot valve to adjust the pressure during pressure relief. During adjustment, the screw on the pilot valve should be withdrawn and the water pump starts. Let the water drain from the pressure relief valve, and gradually screw in the adjusting screw to gradually increase the pressure of the pump until it reaches the required set pressure. After adjustment, tighten the locking nut. If it is under high pressure, the pointer may have Swing or turn the needle valve knob clockwise slightly, but do not tighten it. Change the flow rate through other bypass pipes or water supply networks, and observe whether the pressure relief pressure is stable. If control failure occurs, check the small filter in the control pipe first. Check whether the pipeline is blocked, check whether the pipeline is smooth, whether the main valve and pilot valve diaphragms are broken, and whether the sealing gasket is damaged. If any, replace it. Unit