Product Description:
1. The solenoid valve spool, also known as the plunger or core, is a crucial component of an electromagnetic valve. It plays a vital role in controlling the flow of fluid or gas through the valve by opening or closing the valve ports.
2. The solenoid valve spool is typically made of a ferromagnetic material, such as iron or stainless steel, that is attracted by the magnetic field produced by the solenoid coil. It is designed to fit within a cylindrical sleeve or bore in the valve body and has specific sealing elements or o-rings to ensure proper sealing when in the closed position.
3. When an electrical current is applied to the solenoid coil, it generates a magnetic field that attracts the spool towards the coil, overcoming any spring or pressure forces. This movement of the spool determines the position of the valve ports, either allowing or blocking the flow of fluid through the valve.
4. The spool may have different configurations depending on the type of solenoid valve, such as a direct-acting or pilot-operated valve. In a direct-acting valve, the spool directly controls the flow path, while in a pilot-operated valve, the spool controls a pilot flow that, in turn, controls the main flow.
5. The design of the solenoid valve spool, including its shape, size, and surface finish, is critical to ensure smooth and reliable operation. It should be precisely machined to fit within the valve body, providing proper clearance for fluid flow and ensuringefficient sealing when required.