High Pressure Gate Valves

High Pressure Gate Valves of Hanno Valve can effectively prevent leakage and ensure the safety of pipeline system. High Pressure Gate Valves with high pressure rating, suitable for high pressure pipeline system. High Pressure Gate Valves can open and close with high speed, to reduce fluid pressure loss.

High Pressure Gate Valves advantage

1.High pressure gate valves have a simple structure and are easy to manufacture and maintain.

2.Small work schedule and short opening and closing time.

3.Good sealing performance, low friction between sealing surfaces, and long service life

working principle

High pressure gate valves belong to forced sealing valves, so when the valve is closed, pressure must be applied to the gate to force the sealing surface not to leak. When the medium enters valve six from below the gate, the resistance that the operating force needs to overcome is the frictional force between the valve stem and the packing, as well as the thrust generated by the pressure of the medium. The force required to close the valve is greater than the force required to open it, so the diameter of the valve stem should be larger, otherwise the valve stem bending fault may occur.

When the high-pressure gate valve is opened and the opening height of the gate is 25% to 30% of the nominal diameter, the flow rate has reached its maximum, indicating that the valve has reached the fully open position. So the fully open position of the gate valve should be determined by the stroke of the gate.‌‌

Materials