1. Basic Knowledge of Sanitary Ball Valve Sizes and Models
Ball valves are a common type of valve, widely used in internet-related industrial production, equipment manufacturing, and other fields. Their size and model are crucial to their proper operation and compatibility with various systems.
Ball valve dimensions are typically described by multiple parameters. The first is the nominal diameter, a standardized dimension. Common nominal diameters include DN15, DN20, and DN25. This value roughly reflects the ball valve's flow capacity. For example, in a piping system for internet equipment, if a relatively small flow rate needs to be controlled, a ball valve with a smaller nominal diameter, such as DN15, might be selected to allow for relatively small amounts of fluid to flow. On the other hand, a large data center cooling system might require a ball valve with a nominal diameter of DN100 or even larger to meet higher flow requirements.
Ball valves are also categorized in various ways. Common types include floating ball valves and fixed ball valves. Floating ball valves have a relatively simple structure and are suitable for internet-related applications where pressure and temperature requirements are not particularly high, such as small piping systems within typical network cabinets. Fixed-ball ball valves can withstand higher pressures and temperatures and are commonly used in high-pressure water or gas supply pipelines in internet data centers, where stability is paramount.

II. Ball Valve Size and Model Selection for Different Internet Scenarios
(I) Internet Data Centers
Data centers are a core piece of infrastructure for the operation of the internet. Ball valves play a key role in their cooling systems. Due to the large number of devices in data centers and the resulting high heat generation, the cooling system requires a large volume of cooling water to circulate. In this situation, larger ball valves, such as those with a nominal diameter of DN150 or larger, are typically selected. This ensures sufficient water flow and effectively removes heat generated by the equipment.

As for the model, fixed-ball ball valves may be chosen. Because data center cooling systems require relatively stable pressure but extremely high sealing and reliability, fixed-ball ball valves better meet these requirements. They ensure valve sealing performance over long periods of operation, preventing cooling water leaks and potentially damaging data center equipment.
(II) Internet Equipment Manufacturing Factories
Internet equipment manufacturing factories involve the production and assembly of various components. Smaller ball valves may be used in production lines for small internet devices, such as routers and switches. For example, floating ball valves with a nominal diameter of DN20 or DN25 may be used.

These ball valves are primarily used to control the flow of fluids such as coolants and lubricants during the production process. Floating ball valves are relatively inexpensive and have a simple structure, meeting the basic valve requirements for small equipment production. Their smaller size also facilitates installation and use within compact production facilities.

(III) Internet Communication Base Stations

Communication base stations are critical nodes for ensuring smooth internet communication. Ball valves are also used in auxiliary systems of base stations, such as their air conditioning systems or the coolant circulation systems for battery packs.

For air conditioning systems, the appropriate ball valve size may be selected based on the system size, generally between DN50 and DN100. Ball valves with adjustable functions may also be considered to adjust the coolant flow rate based on actual cooling needs. For the battery pack's coolant circulation system, while the flow rate requirements are relatively low, the corrosion resistance requirements for the valves are high. Therefore, ball valves with special anti-corrosion treatments may be selected, typically in sizes around DN15 or DN25.

III. The Relationship between Ball Valve Size and Model and Internet System Performance
(I) Flow Control
The size of a ball valve directly determines its flow control capabilities. In an internet system, improper ball valve sizing can affect flow distribution across the entire system. For example, in the cooling system for network equipment in a large internet data center, an undersized ball valve can result in insufficient cooling water flow and inadequate equipment cooling, impacting equipment performance and lifespan. Conversely, an oversized ball valve can cause excessive flow, wasting energy and potentially affecting system pressure balance.

The appropriate ball valve size allows for precise control of fluid flow according to system design requirements. For example, selecting a ball valve with a nominal diameter of DN80 ensures a stable cooling water flow into the server cabinet, ensuring the servers operate at an appropriate temperature and ensuring stable internet service.
(II) Pressure Loss
The size and model of the ball valve also affect system pressure loss. Ball valves of different sizes and structures have different internal flow channel shapes and roughness, resulting in varying pressure losses when fluids pass through them.
In the piping systems of internet devices, excessive pressure loss can increase the energy consumption of power equipment such as pumps. For example, due to their sealing structure and flow channel design, fixed-ball ball valves may experience slightly greater pressure loss at the same flow rate compared to some common floating-ball valves. Therefore, when designing internet systems, it is important to comprehensively consider the pressure loss of ball valves and select the appropriate size and model to ensure efficient system operation while reducing energy consumption.
(III) System Stability
Properly selecting ball valve size and model is crucial to the stability of internet systems. If the ball valve is not appropriately sized, it may not fully open or close, causing flow fluctuations and impacting system operation.
For example, in the warehousing and logistics system of an internet e-commerce platform, if the ball valve used to control the flow of air or other media in the cargo delivery pipeline is not sized correctly, it may cause stalls during cargo delivery, impacting logistics efficiency. Choosing the right ball valve size and model can ensure reliable valve operation, maintain stable system operation, and ensure the smooth operation of internet business.
IV. Ball Valve Size and Model Identification and Query
(I) Meaning of Identification
The size and model of a ball valve are usually clearly marked on the valve body. The nominal diameter is usually marked directly on the valve body, such as DN50, which allows users to clearly understand the flow capacity at a glance.
As for the model, different manufacturers may use different identification methods, but they generally include some key information, such as the ball valve type (floating ball or fixed ball), the connection method (flange connection, threaded connection, etc.), and some special functional characteristics. For example, Q41F 16C, where Q indicates ball valve, 4 indicates flange connection, 1 indicates floating ball structure, F indicates fluoroplastic sealing surface material, 16 indicates 16 MPa nominal pressure, and C indicates carbon steel body material. These identifications allow users to quickly understand the basic parameters and performance characteristics of the ball valve.
(II) Query Methods
When searching for a ball valve of a specific size and model, there are several ways. First, you can consult the manufacturer's product catalog. Most ball valve manufacturers have detailed product catalogs that include technical specifications, dimensional drawings, and application scenarios for various ball valve sizes and models.

You can also use internet search engines. By entering the specific ball valve size and model along with relevant keywords, such as "DN100 trunnion-mounted ball valve," you can find product introductions and sales information from relevant manufacturers. Some professional industrial product e-commerce platforms also offer a rich selection of ball valve products. Using filtering functions, you can quickly locate the ball valve of the required size and model and learn about pricing, availability, and other information. Additionally, if you encounter technical issues, you can consult the manufacturer's technical support staff, who can provide accurate size and model recommendations and technical assistance based on your specific needs.

V. Installation and Maintenance Precautions for Ball Valve Sizes and Models

(I) Installation Key Points

When installing a ball valve, first ensure that the pipes at the installation location are clean and free of debris. Even tiny particles entering the ball valve can affect its proper closing and sealing performance, especially in internet-based systems where tight sealing is crucial.

Always strictly follow the ball valve's markings for proper installation. For example, for flange-connected ball valves, ensure the flange surfaces are flat and clean, and that the bolt tightening torque meets requirements to prevent leakage. Also, pay attention to the installation direction of the ball valve. Ball valves are generally marked with flow direction indicators, and must be installed in the indicated direction. Failure to do so may cause the valve to malfunction.
(II) Maintenance
Regular maintenance of ball valves is key to ensuring their long-term stable operation in internet systems. To check the sealing performance of ball valves, observe for leaks around the valve. If minor leaks are detected, tighten the seals or make appropriate adjustments.
The internal passages of the ball valve should also be cleaned regularly. Specialized cleaning tools can be used to remove any accumulated impurities and dirt. Ball valves exposed to harsh environments, such as those in internet data centers with corrosive gases, may require regular anti-corrosion treatment to extend their service life.
In addition, ball valves should be lubricated at specified intervals. Proper lubrication reduces friction between internal valve components and ensures smooth operation. During the maintenance process, detailed records should be kept, including maintenance time, maintenance content, problems found and treatment status, etc., in order to track the operating status of the ball valve and conduct subsequent maintenance management.