The Sun RDBALAN Valve is a direct-acting relief valve consisting of a body, spool, regulator spring, and regulator screw (or handle). This valve utilizes Sun's floating construction, which reduces the possibility of internal parts binding due to excessive installation torque or jack/socket valve machining errors.

Product Features
Floating Construction: The free floating end of the valve tailpiece allows tightly fitted working components to float within the valve body, reducing sensitivity to installation torque and avoiding the possibility of internal moving components jamming.
High abrasion resistance: the internal working components are heat-treated and processed for abrasion resistance, impact resistance, fatigue resistance and long service life.
Large flow rate, low pressure loss: with large flow capacity and low pressure loss, space efficiency is maximized.
Pressure stability: when the pressure in the inlet (port 1) reaches the set value of the valve, the valve starts to overflow to the tank (port 2), throttling to limit the pressure rise. These valves have smooth regulation, low noise, basically zero leakage, strong resistance to oil contamination, anti-clogging and fast response time4.
Product use
Protection of hydraulic components: Direct-acting relief valves are often used to protect hydraulic components from transient pressure shocks.
Pressure limiting: Used as a normally closed pressure limiting valve in cross-ported relief lines to ensure that the pressure drop across the throttle orifice remains constant and is not affected by changes in inlet and outlet pressures.
Pressure limiting compensator: Normally open regulating unit without built-in throttle orifice, used as a pressure limiting compensator to ensure that the pressure drop flowing through the throttle orifice remains constant and unaffected by changes in inlet and outlet pressures.
Conclusion
The Sun RDBALAN Valve is a high-performance direct-acting relief valve suitable for use in a wide range of hydraulic systems, especially in application scenarios where precise pressure control and protection of hydraulic components from transient pressure shocks are required. Its unique floating construction and high wear-resistant materials enable it to maintain long-term stable performance even in harsh environments.