The HSN-45 valve is used to open (or close) one portion of the circuit (to or from) flow from (or to) another portion. Flow can be in either direction (bi-directional).

There are ports milled thru the body and main spool. Rotating the handle 45 degrees counter-clockwise aligns the ports and allows flow between ports 1 and 2. Rotating the handle clockwise shuts off flow.

The valve handle position can be re-set in any position after the valve has been installed by simply lifting, rotating, and releasing the handle. Design incorporates a roller thrust bearing to ensure the valve can me adjusted with low force.

The valve is constructed of steel parts, and operating parts are hardened and ground. The cartridge is designed for easy service and field repair.