500X-16Q is a flange connected pressure relief valve with a nominal pressure of 1.6MPa, and the valve body material is ductile iron (Q). It can automatically maintain the pressure of the pipeline system at the set value, automatically release pressure when overpressure occurs, and close the pressure holding when low-pressure occurs. With a compact structure and sensitive action, it is widely used in water supply and drainage, fire protection and other systems to ensure pipeline safety.
500X-16QPressure relief valveProduct Description
500X-16QPressure relief valve， 500X "is the model number," 16 "represents a nominal pressure of 1.6MPa, and" Q "indicates that the valve body material is ductile iron. This valve consists of a main valve, a relief/holding pressure pilot valve, a needle valve, a ball valve, a micro filter, and a pressure gauge to form a hydraulic control connection system. It can operate automatically with the help of hydraulic power and has both the functions of a relief valve and a holding pressure valve.
Widely used in water supply systems such as fire protection and water supply and drainage. When using a pressure relief valve, the pressure in the water supply circuit can be maintained below the set safe value to prevent equipment damage caused by system overpressure; As a pressure holding valve, it can maintain the upstream water pressure of the main valve above the set value, ensuring stable water supply pressure. Moreover, the valve does not require additional equipment or energy, relying solely on hydraulic self control, and is easy to maintain and upkeep, truly achieving multi-purpose use of one valve.
When the pressure relief/holding pilot valve is adjusted to the pressure relief state, water flows through the needle valve, main valve control room, ball valve A, pressure relief/holding pilot valve, and ball valve B in sequence before flowing to the outlet. At this time, the main valve is in the open state. Once the inlet pressure exceeds the safety value set by the pressure relief/holding valve, the pressure relief valve will automatically open, and water will flow out through ball valve C, reducing the pipeline pressure. When the pressure returns to a safe value, the pressure relief valve will automatically close. Please note that when used as a pressure relief valve, each ball valve should be kept in a normally open position.
When the relief/holding pressure pilot valve is set to the holding pressure 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 immediately close, and the pressure in the control room of the main valve will rise, and the main valve will close accordingly. When the upstream water supply pressure of the main valve exceeds the set pressure of the pilot valve, the pressure holding pilot valve opens, and the water in the control room is discharged to the outlet through the ball valve. The pressure in the control room decreases, and the main valve opens to start supplying water, thereby maintaining stable upstream water pressure. When used as a pressure holding valve, ball valve C should be kept normally closed or replaced with a plug.
automatic controlUtilizing hydraulic self control, without the need for external power or other complex control devices, it can automatically and accurately operate according to changes in pressure inside the pipeline, ensuring stable system pressure.
versatilityIntegrating pressure relief and holding functions, it can flexibly switch working modes according to actual needs, meeting different pressure control requirements of various water supply systems.
Reasonable structural designThe main valve has only one moving part and adopts a diaphragm structure, which not only has no friction and high control sensitivity, but also greatly reduces the probability of failure and improves the reliability and service life of the valve.
Convenient pressure regulationBy turning the adjusting screw of the pilot valve, the pressure setting value can be easily changed. The operation is simple and can quickly adapt to the pressure adjustment requirements under different working conditions.
Strong anti impurity abilityThe inlet of the valve control system is equipped with a self-cleaning filter screen. With the help of fluid characteristics, it can prevent suspended particles with high specific gravity and large diameter from entering the control system, ensuring smooth system circulation and ensuring safe and reliable operation of the valve.
High rise building water supply systemEffectively preventing excessive pressure in the bottom pipeline caused by floor height differences, it can not only release pressure and protect the pipeline in a timely manner when the pressure exceeds the limit, but also maintain stable water supply pressure on each floor.
Fire water supply systemIt is crucial to prevent overpressure in the fire protection system, ensure stable operation of the system, and reduce water hammer impact after the fire pump is turned off, ensuring that the fire protection facilities are always in a reliable state.
Urban water supply projectWidely used in urban water supply networks to maintain stable pressure, avoid accidents such as pipe bursts caused by pressure fluctuations, and ensure the safety and stability of urban water supply.
Industrial water supply systemSuitable for production water systems in various factories, ensuring stable water pressure during the production process, meeting the strict requirements of production equipment for water pressure, and avoiding the impact of abnormal pressure on production.
