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OS & Y (rising spindle) Valves

  •  OS & Y (rising spindle) Valves
One of the main ingredients of fire system OS & Y (Rising Spindle) valves are valves that can be used for a long time with less failure.

Therefore, they are used especially in the suction lines of pump rooms and sometimes used instead valve box in hydrant systems.

When pressure switch is placed it notifies that the valve is closed to automation room when valve is closed.