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...
Butterfly valve can transport mud, at the mouth of the least fluid accumulation. At low pressure, good sealing can be achieved. Good adjustment performance.
The butterfly plate of the clip butterfly valve is installed in the diameter direction of the pipeline. The valve is fully open.
Apr 08, 2021
The butterfly valve is usually less than 90° from full open to full close. The butterfly valve and the butterfly stem themselves have no self-locking ability.
Lift type check valve body shape and globe valve (and globe valve general), so its fluid resistance coefficient is larger.
