500X pressure relief valve
1. Product overview
500X pressure relief valve is mainly used in fire fighting or other water supply systems to prevent overpressure in the system or maintain the pressure of the fire water supply system. After the fire pump is turned off, the impact of water hammer can also be reduced. It is also used for water hammer devices in large water supply systems. In addition, a clean filter screen is installed at the inlet of the valve control system, which uses fluid characteristics to prevent suspended particles with larger specific gravity and larger diameter from entering the control system, ensuring unobstructed circulation of the system and ensuring safe and reliable operation of the valve. The system moves smoothly, with high strength and long service life.
1. As a pressure relief valve: When the pressure relief/pressure holding pilot valve is adjusted to the pressure relief state, water flows to the outlet through the needle valve, main valve control room, ball valve A, pressure relief/pressure holding pilot valve, and ball valve B. The main valve is open. When the inlet pressure exceeds the safety value set by the pressure relief/holding pressure pilot valve, the pressure relief pilot valve will automatically open, and part of the water will be released through the ball valve C to relieve the pressure of the pipeline. When the pressure returns to a safe value, the pressure relief valve automatically closes. When used as a pressure relief valve, each ball valve is normally open.
2, as a pressure holding valve: when the pressure relief/pressure holding pilot valve is adjusted to a pressure holding state, as long as the inlet water pressure of the main valve is lower than the set value of the pilot valve, the pilot valve will be closed. The main control room is pressurized and the main valve is closed. When the upstream water supply pressure of the main valve exceeds the set pressure of the pilot valve, the pressure-holding pilot valve can be opened. The water in the control room is discharged to the outlet through the ball valve, and the pressure reduction main valve of the control room opens to start water supply, that is, the upstream water pressure is maintained. When used as a pressure holding valve, the ball valve C is normally closed or replaced with a plug.
2. Product features
1, 500X pressure relief/holding valve consists of a main valve, pressure relief/holding pressure pilot valve needle valve, ball valve, micro filter and pressure gauge to form a hydraulic control takeover system. Using hydraulic automatic operation, it can be used as a pressure relief valve as well as a pressure holding valve. When used as a pressure relief valve, it can maintain the pressure of the water supply line below the set safety value; when used as a pressure holding valve, it can maintain the upstream water pressure of the main valve above the set value and maintain the upstream water supply pressure of the main valve.
2. This product uses hydraulic self-control, does not require other devices and energy, is easy to maintain, and has multiple uses with one valve.
3. This series of valve products are widely used in high-rise buildings, living quarters and other water supply pipe network systems and urban water supply projects.
Three, product specifications
Fourth, product connection size