Oleodinamica e pneumatica Sun Hydraulics

The Sun Hydraulics Free Flow Nose to Side Check Valve is an essential on/off circuit component designed to allow free flow from the inlet (port 1) to the outlet (port 2) while blocking flow in the opposite direction. This valve is engineered to provide extremely low leakage rates, with a maximum leakage of less than 1 drop per minute (0.07 cc/min). It can handle pressures up to 5000 psi (350 bar) at both ports, making it suitable for high-pressure applications.Featuring Sun's floating style construction, this check valve minimizes the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. It is compatible with systems using phosphate ester fluids when configured with EPDM seals. However, exposure to petroleum-based fluids, greases, and lubricants can damage these seals. For use in corrosive environments, corrosion-resistant cartridge valves are available and identified by the model code suffix /AP or /LH.This valve is designed for use in a T-5A cavity and has a capacity of 40 gpm. It is an ideal choice for applications requiring reliable and efficient flow control with minimal leakage.

The Sun Hydraulics Direct-Acting Relief Valve is a normally closed, pressure-limiting valve designed to safeguard hydraulic components from pressure transients. When the inlet pressure reaches the valve setting, it opens to the tank, throttling flow to limit pressure rise. This valve is known for its smooth, quiet operation, zero leakage, and dirt tolerance. It is immune to silting and offers rapid response times.All 2-port relief cartridges are interchangeable, featuring the same flow path and cavity for a given frame size. The valve can handle maximum pressure at port 2, making it suitable for cross port relief circuits. The adjust screw seals are exposed to system pressure, so adjustments must be made with the pressure removed. The valve is relatively insensitive to oil temperature variations and contamination, ensuring consistent performance.For optimal repeatability, select a spring range where the desired relief setting is mid to high between the minimum and maximum pressure. This valve is also suitable for load holding applications, with back pressure on the tank port directly additive to the valve setting at a 1:1 ratio. EPDM seal configurations are available for systems using phosphate ester fluids, but exposure to petroleum-based fluids will damage these seals.Incorporating Sun's floating style construction, this valve minimizes the risk of internal parts binding due to excessive installation torque or machining variations. It meets or exceeds 90% reseat at test settings, ensuring reliable performance.