The Hydraulic Sliding Shut-Off valve features a push-pull operation by one hydraulic cylinder. The valve body is rated at a nominal concrete working pressure of 1233psi/85bar. The sliding shut-off/diversion plate has a single hardened steel ring to provide a seal between the stationary and moveable valve plate. Valves that use 148mm ends have a maximum pressure rating of 85bar (1233psi). Consult factory for 6” valve specifications.