English
русский
In the GRVS08-20 direct-acting relief valve, the spring force plays a vital role, directly affecting the operation of the valve and the protection of the hydraulic system. First, when the hydraulic system is operating normally, the spring will firmly press the valve core against the valve seat, thereby preventing the oil from flowing through the valve. This closed state ensures that the system operates within a safe pressure range without internal leakage. At this time, the oil flow is completely isolated and will only change when the hydraulic pressure of the system reaches a sufficiently high value.
When the hydraulic pressure gradually increases and exceeds the set threshold, the pressure of the oil will directly act on the valve core and gradually overcome the force of the spring. If the pressure is strong enough, it can push the valve core away from the valve seat, so that the oil flows from end ① to end ②, allowing the oil to flow through. At this time, the relief valve plays a pressure protection role, ensuring that the hydraulic system will not be damaged by overpressure. The opening of the valve allows the excess oil to flow out, avoiding system failure due to excessive pressure.
The tension of the spring plays a decisive role in the opening pressure of the relief valve. By adjusting the tension of the spring, the pressure at which the valve opens can be accurately set. This means that the relief valve can be set to open at a specific pressure as needed, thereby protecting the hydraulic system. When the hydraulic pressure is too high, the relief valve will automatically open to prevent excessive pressure from damaging the system; and when the pressure returns to normal levels, the spring will push the valve core to close again and restore the valve's sealing state.
When the pressure drops below the valve opening pressure, the spring force will push the valve core back to the valve seat, thereby closing the valve and stopping the flow of oil. This automatic recovery mechanism ensures that the hydraulic system remains stable throughout the entire working process, avoiding unnecessary oil loss and preventing unnecessary pressure fluctuations in the system.
++86-0575-87669088
