This series of products are reliable sealing performance, maintenance-free for 20 years, switch torque light, can be installed in hydraulic system, heat transfer stations, district heating pipe network, branch pipes, heat exchanger unit, heat transfer equipment, or ancillary equipment connected to other.use for cut off. The main use of the hydraulic liquid, urban heat, city gas, city water supply, and drainage lines. 
 

 Design Feature

   1.Fire-safe design. Metal to metal sealing shuts off valve flow when soft sealing materials are destroyed by fire.

   2.Optional stem extension. Extension stem can meet the customers' demand, to adapt to any condition.

   3.Secure the line flow locking device. The valve is equipped with an integral locking device to secure line flow.

   4.Anti blow-out stem design. It has a taper on the sealing surface, it can be replaced packing when the valve is open.