Our 810T double-sealed sleeve control valve uses sleeve-oriented, pressure-balanced spool. Compared with 810D series, this series of control valves are sleeve double sealing structure mainly used in the occasion of low leakage requirements, because the two sealing surfaces of double sealing structure are metal seals, so the temperature range used is wider. The spool uses the pressure balance structure, and the opening and closing force is small, and the working condition of high pressure difference can be controlled by small actuator thrust. It is widely used in fluid control of medium-low temperature and medium-low pressure pipelines requiring good dynamic stability. Good sealing performance and large allowable pressure difference. Sleeve guide, large guiding area, good stability, compact structure, can quickly replace valve internals online, high maintenance efficiency, saving manpower and time. Balanced spool structure ensures minimum thrust of actuator required.