What type of connections do the sub-plate ends for stack valves have?

Sub-plate ends for stack valves typically feature both pressure port connections and tank port connections. This design allows for effective fluid management within hydraulic systems. By incorporating pressure port connections, these valves can receive and direct pressurized hydraulic fluid, essential for operating the system efficiently. Simultaneously, tank port connections facilitate the return flow of fluid back to the reservoir or tank, ensuring that system pressure is maintained and that hydraulic fluid is recirculated appropriately.

The presence of both types of connections on the sub-plate ends is crucial for the overall functionality of the hydraulic circuit. It allows for a versatile setup where various hydraulic components can be integrated seamlessly, enhancing system performance and reliability. Therefore, the answer combining both types of connections accurately reflects the design and operational requirements of stack valves in hydraulic applications.