Vacuum exhaust steam globe valve apply for power station

Characteristic

The structural characteristic of DJ961HY type vacuum exhaust steam valve is the adoption of medium reverse flow(high in low out),with dual functions of disconnection and non-return.The connection between valve cover and valve body is self-seal structure.99% seal can be achieved through self pressure in time of closure.Valve is designed into two large and small valve cores to solve the problem of difficult startup due to large pressure difference.Valve seat ａnd valve core are overlay welded with special alloy which has wearing capacity.The adoption of tapered seal and linear seal surface can ensure non-occurrence of distortion and crack under the condition of large temperature difference. 

Operation principle

Type DJ961HY to the air exhaust valve is the two part of the electric device and the air exhaust valve body to. The axial force generated by the electric head, drive the movement of the valve rod, the valve fully open or fully closed (can not be adjusted to Use), to complete the system operating requirements. Electric actuator can be according to the needs of users on the system and designated manufacturers to configure.