Bucket teeth of excavators are important parts of excavators, similar to human teeth, but also vulnerable parts. They are combined bucket teeth composed of tooth seats and tooth tips, which are connected by a pin shaft. Because the part of bucket tooth wear and failure is the tooth tip, just replace the tooth tip.
The most commonly used imported excavators in the market are: Cat, Komatsu PC200-7, Hitachi, Daewoo, Kobelco, Hyundai, etc. Commonly used domestic excavators are: Liugong excavator bucket with tooth, SDLG wheel loader bucket with tooth, XCMG ZL50C loader and excavator bucket with tooth, Lovol wear resisting bucket, Lonking bucket , SEM, Sany Heavy Industry, Shantui XGMA, Chenggong, Sunward Intelligent, Zoomlion, etc.We offer custom bucket tooth and teeth parts.
One: The bucket tooth material is low-alloy wear-resistant steel, which is more suitable for bucket teeth. However, due to the lack of necessary heat treatment, the organization of the bucket teeth is uneven, the insert does not play its due role, and the overall wear resistance of the bucket teeth is poor, leading to early failure. Two: It is recommended to properly normalize the casting after casting to improve the structure and performance and increase the service life. After reasonable heat treatment of the casting, under the same working conditions, the service life of the bucket teeth is increased by nearly 2 times.
Custom Teeth,Zl50C Bucket Tooth,Wheel Loader Adapter,Loader Teeth Parts Jinan Union Construction Machinery Co., Ltd. , https://www.tfloaderparts.com
Name
Plastic Ball Valve
Material
Plastic
Medium
Water
The Plastic Ball Valve is primarily designed for cutting off or connecting pipelines in fluid systems. It can also be used for regulating and controlling the flow of media. Compared to other types of valves, it offers several advantages such as low fluid resistance, compact design, and high corrosion resistance. The UPVC ball valve is specifically developed to meet the demands of corrosive environments and is ideal for various industrial applications.
Key features of this plastic ball valve include lightweight construction, strong resistance to chemical corrosion, a compact structure, and an attractive appearance. Its light weight makes installation easy, while its durability ensures long-term use. The material used is non-toxic, wear-resistant, and allows for simple disassembly and maintenance.
In addition to PVC, other materials like PPR, PVDF, PPH, and CPVC are also available for different application requirements. The valve uses F4 sealing rings, which provide excellent corrosion resistance and extend the service life. It offers smooth rotation and is easy to operate. As an integral ball valve, it ensures no leakage and has a high strength rating, making it convenient for assembly and disassembly.
Installation and usage instructions suggest that flanges on both ends should be connected to the pipe, with bolts tightened evenly to prevent leaks caused by deformation. Rotating the handle clockwise closes the valve, while counterclockwise opens it. It is recommended to use it only for flow control, not for throttling, as particles in the fluid may damage the ball surface.
Working Principle:
The flow rate through the plastic ball valve changes linearly with the opening degree. When used for flow control, the valve’s performance is closely related to the pipeline resistance. If installed with two identical valves, their flow characteristics will differ based on the diameter and configuration. A larger throttle setting may cause cavitation behind the disc, potentially damaging the valve. Therefore, it is generally recommended to use it at an angle of around 15 degrees.
During the opening process, the valve body and disc form an opening shape around the shaft. One side of the disc moves with the flow, while the other moves against it, creating a nozzle-like opening on one side and a throttling hole on the other. This results in faster flow on the nozzle side and a vacuum effect on the throttling side, which helps maintain a tight seal.
The plastic ball valve does not have self-locking capability, so a worm gear reducer is often required for precise positioning of the disc. This device enhances the valve's operation, allowing it to stop at any position and improving overall performance. The operating torque varies depending on the direction of opening and closing, especially for large-diameter horizontal valves where water pressure can significantly affect the torque.
When the valve is partially open, the operating mechanism must be locked due to dynamic torque. The valve’s simple structure, minimal parts, and small size make it efficient and quick to operate, requiring only a 90-degree rotation for full opening or closing. It also provides good flow regulation and tight sealing, making it suitable for medium to large diameters under low-pressure conditions.
There are two main types of ball valves: elastic sealing and metal sealing. Elastic seals are embedded in the valve body or attached to the disc, while metal seals offer longer life but may not seal completely. Metal seals are better suited for high-temperature environments, whereas elastic seals have temperature limitations.
For flow control applications, selecting the right size and type of valve is crucial. Ball valves are widely used in industries such as oil, gas, chemicals, and water treatment, as well as in cooling systems of thermal power plants. Common types include the flanged and threaded ball valves, with flanged versions connecting pipes via bolts on both ends.
The strength of the valve refers to its ability to withstand internal pressure without deformation or cracking. Proper materials and design ensure long-term reliability. With advancements in synthetic rubber and PTFE, the performance of ball valves has improved, adapting to various working conditions. Recently, metal-sealed ball valves have gained popularity due to their high resistance to extreme temperatures, corrosion, and erosion, making them a preferred choice in challenging environments.
Model NO.: EM-V-B263
Type: Floating Ball Valve
Function: Blow-Down Valve
Temperature: Normal Temperature
Application: Industrial, Water Treatment, and Domestic Use
Color: Black
Handle: Green
Trademark: EM
Transport Package: Carton or Pallet
Specification: DN20
Origin: China
HS Code: 8481804090