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Tungsten Carbide Tools for Mining and Construction
cemented carbide carbide ball
has two type, cylindrical and spherical. The carbide ball is widely used in rolling ball mills and agitating ball mills, precision bearings, instruments, mechanical parts, punching holes, oil fields, hydrochloric acid laboratories, hardness measuring instruments, fishing gear, counterweights, etc.
Trunnion ball valve
The ball of the ball valve is floating under theunder theThe ball of the ball valve is floating, under thepressure of the medium, the ball can produce a certain displacement and pressed on the end of the sealing surface, to ensure that the end of the export seal. The floating ball valve has a simple structure and good sealing, but the ball bears all the load of working medium to the outlet sealing ring. Therefore, it is necessary to consider whether the sealing ring material can withstand the working load of the ball medium. When impacted by higher pressure, the ball may be offset.This structure is generally used for low and medium pressure ball valves.Ball valve itself is the main characteristics of compact structure, reliable sealing, simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, easy operation and maintenance, applicable to water, solvent, acid and gas, such as general work medium, but also is suitable for the working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene, widely used in various fields.The ball valve body may be integral or modular.
Product features
1.In a variety of valves, the flow resistance of the ball valve is the least, when the full diameter ball valve is opened, the ball channel, valve body channel and connection pipe diameter is equal and into a diameter, the medium can flow through almost without loss
2. The ball valve can be fully closed and fully opened by rotating 90°, with quick opening and closing.Compared with gate valves and globe valves of the same specifications, ball valves are small in size and light in weight, facilitating pipeline installation
3.Advanced seat: many years of ball valve manufacturing experience and the design of the seat, ensure the valve seal, low friction coefficient, small operating torque, a variety of seat materials, wide range of adaptability.
4. Handle with correct switch: flat head stem is adopted to ensure that the connection with the handle will not be misaligned, so as to ensure that the switch state indicated by the handle is consistent with the valve.
5. Locking device: To prevent incorrect operation of the valve switch, there are locking holes in the fully open and fully closed position of the valve to ensure that the valve is in the correct position.
6. Anti-flying structure of the valve stem: the stem is of lower mounting type to prevent it from flying out under pressure. At the same time, it can form metal contact with the valve body after fire to ensure the stem seal.
7. The ball valve USES a ball with a round through hole as the opening and closing part. Driven by the valve stem, the ball rotates around the center of the valve stem for 0-90 degrees to complete the opening and closing function;It has the characteristics of compact switch, turn 90 degrees, you can close the valve, cut off the pipeline media;The diameter of the sphere channel is the same as that of the pipeline, with small flow resistance and large flow capacity;The stem is of lower mounting type, which eliminates the occurrence of accidents through the stem and ensures the safety of use.
Suitable medium: water, gas, oil, natural gas and caustic medium.
Applicable temperature: -1 96 ~ 350ºC
Driving mode: manual, pneumatic, electric, hydraulic, etc.
Nominal size: DN 15-250 1/2″ ~ 10
Our Advantages:
1:High strength, high wear resistance, high precision, high temperature resistant, corrosion resistant.
2:They are mainly used for the sealing of valves of oil pumps in petroleum industry's sand containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.
3 They are used with compatible cemented carbide valve seats. The surface finish, tolerance class and tolerances of dimensions have respectively reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999.
4:Precision machined cemented carbide balls of other grades and specifications are also available based on customers' demands.
5:Compatible high precision valve seats can also be made available.
YG6 YG8 tungsten carbide ball for valve pair & oil industry
Product Description
| Product name | Tungsten carbide balls |
| Series | YG6 YG8 YN6 YN8 |
| Feature | Large hard Tungsten Carbide ball has high hardness, wear resistance, corrosion resistance, bending resistance, and bad use environment, and can replace all steel ball products. Carbide ball hardness ≥ 90.5, density = 14.9g/cm3. |
| Density | 14.9g/cm3 |
| Product process line | The production process of cemented carbide ball is similar to that of other cemented carbide products, mainly including powder preparation → recipe according to application → wet grinding → mixing → crushing → drying → sieving → adding molding agent → drying → sieving Prepared mix → granulation → cold isostatic pressing → forming → sintering → forming (blank) →grinding → packaging → storage. According to the specific application requirements and related parameters, there are carbide alloy ball, tungsten steel ball, tungsten ball, high-density alloy ball and other carbide ball products. The smallest carbide ball can do about 0.3 in diameter. |
Various Size of Aseeder tungsten carbide balls in many types of tungsten carbide grade are available
| Grade | Density ( g/cm3) | Hardness ( HRA) | T.R.S(MPa) | Grain size ( μm) | Composition ( % ) | Equal to ISO |
| YG8 | 14.65~14.85 | ≥89.5 | ≥2320 | 1.2~2.0 | 8%CO 92%WC | K20 |
| YG6 | 14.85~15.05 | ≥90.0 | ≥2150 | 1.2~2.0 | 6%CO 94%WC | K10 |
| Dia.(mm) | Dia.(inch) | Dia.(mm) | Dia.(inch) |
| 2 | 3/38 | 8 | 23/73 |
| 2.38125 | 3/32 | 9.525 | 3/8 |
| 2.5 | 6/61 | 10 | 37/94 |
| 3 | 2/17 | 11.1125 | 7/16 |
| 3.175 | 1/8 | 12 | 43/91 |
| 3.969 | 5/32 | 12.7 | 1/2 |
| 4 | 3/19 | 13.494 | 17/32 |
| 4.7625 | 3/16 | 14 | 43/78 |
| 5 | 12/61 | 14.2875 | 9/16 |
| 5.556 | 7/32 | 15 | 13/22 |
| 6 | 13/55 | 15.875 | 5/8 |
| 6.35 | 1/4 | 16 | 17/27 |
| 7 | 8/29 | 19.05 | 3/4 |
| 7.938 | 5/16 | 20 | 37/47 |
| Tolerances: AFBMA Ball Tolerances Table | |||||
| Grade | Sphericity in inches | Sphericity in mm | Basic Diameter Tolerance in inches | Basic Diameter 2 in mm | Maximun Surface Roughness |
| G3 | 0.000003" | 0.0000762mm | +/-0.00003" | +/-0.000762mm | 0.5 |
| G5 | 0.000005" | 0.000127mm | +/-0.00005" | +/-0.00127mm | 0.8 |
| G10 | 0.000010" | 0.000254mm | +/-0.0001" | +/-0.00254mm | 1 |
| G25 | 0.000025" | 0.000635mm | +/-0.0001" | +/-0.00254mm | 2 |
| G50 | 0.000050" | 0.00127mm | +/-0.0002" | +/-0.00508mm | 3 |
| G100 | 0.0001" | 0.00254mm | +/-0.0005" | +/-0.0127mm | 5 |
| G200 | 0.0002" | 0.00508mm | +/-0.001" | +/-0.0254mm | 8 |
| G500 | 0.0005" | 0.0127mm | +/-0.002" | +/-0.0508mm | |
| G1000 | 0.001" | 0.0254mm | +/-0.005" | +/-0.127mm | |
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