Tungsten Carbide Valve Ball Description (1/2)

Tungsten carbide valve ball or called tungsten carbide ball valve is converted from conventional stopcock. It uses a ball to start and stop by sphere running around the stem axis. Compared with conventional valve, valve ball has many advantages, such as simple structure, excellent tightness, light in weight, lower material consumption, smaller installation size, smaller volume within a certain nominal diameter, smaller driving moment and easy operation for controlling, which becomes one of the most rapid developing of valve gradually in recent years. Tungsten carbide ball valve in the pipe main role is cut off, distribution and change the direction of media flow, other special designed ball valve structure can achieve flow adjustment function.

Tungsten carbide ball (WC-Co) with high precision we discuss here has been widely used in valve ball and ball seat for oil drilling, deep-sea drilling, which is also the most critical component of oil pump. Due to the harsh conditions in oil drilling industry, especially in some sand drain, heavy oil well, high pressure oil well, which contains water, diverse gas, wax, sand and some materials with high corrosivity, the pump need to pump oil from hundreds or even thousands of meters of strata extracted. It requires that the ball valve and ball seat has excellent tightness, wear resistance and corrosion resistance (pumping the ball, with rear seat evacuated to an absolute pressure 0.36kgN / cm2 or less, in the 10s the absolute pressure values do not change).

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