Wedge gate valve is a kind of gate valve. Because of its sealing surface and the vertical center line into a certain Angle, namely the two sealing surface into a wedge.
Apr 13, 2021
Wedge gate valve because of the sealing surface of the valve and the vertical centerline into a certain Angle, sealing is better, so it can withstand high pressure.
The stem moves up and down and the stem nut is fixed. Dark stem gate valve is fixed stem, stem nut moves up and down to complete the opening and closing.
Apr 12, 2021
The two sealing faces of the most commonly used wedge gate valves are wedge-shaped, and the wedge Angle varies with the valve parameters, usually 50.
Do not allow the check valve to bear weight in the pipeline system. Large check valves shall be independently supported so that they are not affected by the pressure generated b...
Apr 11, 2021
Check valve can be divided into swing type check valve (according to the center of gravity rotation) and lift type check valve (moving along the axis).
Welding In order to improve the surfacing quality, plasma argon arc welding technology is adopted for surfacing of valve disc and valve seat.
In order to prevent the medium from counterflow, check valves should be installed on equipment, devices and pipelines.
Apr 10, 2021
When the globe valve is fully open, the handwheel should be reversed a little, so that the threads between the tight, so as not to loose damage.
When the globe valve is fully closed, the pressure difference between the front and back of the disc is equal to the working pressure of the medium, and the resistance is the la...
High temperature, high pressure medium pipeline or device should be selected stop valve. Such as thermal power plant, nuclear power plant, petrochemical system of high temperatu...
Apr 09, 2021
Globe valve in operation, all kinds of valve parts should be complete and intact. Bolts on the flange and bracket are indispensable. Thread should be intact and no loosening is...
