(Reconditioned) The Maxton Safety and Shut Off valve is designed to provide protection against supply line failure or over speed in the down direction. The OSV can be adjusted to stop the elevator in the event of an over speed condition caused by a broken supply line or an abnormally high rate of flow between the OSV valve and the power unit. Can be installed in a horizontal or vertical position. The OSV complies with ASME A17.1/CSA B44 and meets (UFGS Division 14 Conveying Equip Section 14 24 00 Part 188.8.131.52) requiring a valve equipped with manufacturer's manual shut off feature. Coil and coil assembly not included with exchange. Cores must be returned to Maxton within 90 days to be eligible for a core charge credit.