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Sphere for Ball Valve

China Sphere for Ball Valve, Find details about China Ball Valve, Sphere from Sphere for Ball Valve

Model NO.
SQ
Trademark
GONGNAI
Transport Package
Wooden Case
Specification
1.1*1.1*1.1
Origin
China
HS Code
8481901000
Model NO.
SQ
Trademark
GONGNAI
Transport Package
Wooden Case
Specification
1.1*1.1*1.1
Origin
China
HS Code
8481901000
Sphere for Ball Valve


Sphere for Ball Valve
Sphere for Ball Valve
Sphere for Ball Valve
Sphere for Ball Valve
The cemented carbide ball or cemented carbide ball valve is evolved from the traditional plug valve. Its opening and closing part is a sphere, and the purpose of opening and closing is realized by the sphere around the axis of the valve stem.
High-precision tungsten-cobalt cemented carbide balls are widely used in oil drilling and deep-sea drilling pump valve balls and ball seats, which are also one of the most critical parts of oil pumps. Due to the harsh working environment and conditions in the petroleum drilling industry, sandy wells, heavy oil wells, and high-pressure oil-repellent wells usually contain water, various gases, waxes, sand and other highly corrosive substances, [1] The oil well pump needs to extract oil from hundreds or even thousands of meters of the formation, which requires its valve ball and valve seat to have good sealing, wear and corrosion resistance (the valve ball and valve seat are combined to vacuum to absolute If the pressure is below 0.36kgN/cm, the absolute pressure value will not change within 10s).
The main advantages of cemented carbide ball valves can be divided into the following aspects:
1. It has the theoretically lowest flow resistance (flow resistance refers to the ratio of the pressure difference between the two sides of the sound-absorbing material sample to the linear velocity of the airflow passing through the sample under a steady air flow state);
2. Excellent chemical stability, wear and corrosion resistance, can be in contact with most liquids and some corrosive media;
3. In a high temperature and high pressure environment, it can still achieve complete sealing (nominal pressure from vacuum to 42MPa);
4. Since the cemented carbide ball valve uses the sphere as the opening and closing part, it is less affected by friction and can realize rapid opening and closing (can be controlled within 0.05-0.1s), and the impact of operation is small. In addition, the spherical closure The parts can withstand high pressure difference when closing, and can also realize automatic positioning;
5. It has two-way sealing, which makes the work more stable and reliable.

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