Knowledge

Oil price calls for 2020 aren’t looking great for crude-producing countries

Shell share price dips after warning Q4 income will be hit by impairment charges

Oil rises near three-month high on partial U.S.-China trade deal

Tullow Oil CEO quits after continued poor results in Ghana

Check valve

Is the centrifugal pump outlet check valve added before or after the stop valve?

BHP considers conventional oil attractive for decades

Aramco, Sempra sign largest LNG deal in 6 years

Butterfly valve for occasions

The butterfly valve is suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, it should also be considered that the butte

Classification of butterfly valves in sealed form

Elastic sealing butterfly valve: The sealing specific pressure is generated when the valve plate is pressed by the valve seat, the valve seat or the valve plate is elastic when the

Advantages of Butterfly valve

Simple structure, small size, short structure length, small size and light weight, suitable for large diameter valves.

Features of Butterfly valve

Butterfly valve has the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, rapid switch