The TFLS ball screw gate valve was designed by Yancheng TSC for large-diameter, high-pressure manual valves. The valve is combined with a rear balancing pole and unique ball balance creating an easy to use, low torque device.
Bi-directional downstream seal structure, improved service life;
Simple and reliable design for wedge disc and valve seat, which can reduce on-site service and minimize spare and accessory parts inventory;
Seal ring between valve seat and valve body can facilitate low-pressure sealing and prevent particulate contamination entering into valve body cavity and sealing area;
Valve stem seal design covers all pressure ratings, full temperature range and all possible fluid conditions in wellhead and manifold environment.