These valves are designed to regulate flow in two opposite directions. Thus, they are two-way. The fluid flow is sustained at a constant rate in one direction while in the opposite direction, fluid is allowed to flow freely. Pressure or temperature variations do not affect the process.
The valve is bolted onto a base-plate with four bolts (which are bought separately). An O-ring seal is positioned between base-plate and valve to ensure 100% sealing.
The valves are perfectly suited for use in hydraulic systems and can be installed vertically or horizontally.