One, what are the different types of pipe connections?
The most commonly used types of pipe fittings include direct connection fittings, elbow fittings, three-way connectors, and socket fittings. Among these, socket fittings are particularly versatile and convenient due to their flexibility and ease of use. They are not limited by space or pipe specifications and can be easily installed on any pipe where connection is required. They are also easy to disassemble.
1、Direct pipe connections
Direct interfaces refer to situations where pipes need to maintain their original direction without any bends. This includes both internal threads and external threads. External threads with direct diameter changes.
2、Curved joint interface
This type of 90-degree and 45-degree angle fitting is primarily used for corners. It also comes in two varieties: variable-diameter elbows and constant-diameter elbows. For constant-diameter elbows, the diameter at both ends is the same, making them suitable for connecting two pipes of the same diameter. For variable-diameter elbows, the diameters at the ends are different, typically used for connecting pipes of different diameters.
3、Three-way connection
This refers to using it at the point where three pipes converge. It is available in both equal-diameter and unequal-diameter configurations.
4、Live Joint
There are two main types of connections: those with equal diameters and those with varying diameters. These connections can be easily installed and removed, making them the most convenient and efficient option.
II. Comprehensive Overview of Types and Dimensions of Pipe Fittings
Common sizes for household water pipes typically range from 4-inch to 6-inch. Water pipe sizes are measured in two systems: the imperial system and the metric system.
1 foot = 12 inches, 1 inch = 8ths = 25.4 mm. A 6th is equal to 3/4 * 25.4 mm = 19.05 mm, but for convenience, a 6-inch nominal diameter pipe is often referred to as 20 mm. This is the inner diameter only. To calculate the total diameter, the wall thickness must also be added. For example, a 4-inch hot water pipe with a wall thickness of 3.4 mm has an inner diameter of 12.7 mm, and the total diameter is 12.7 + 2 * 3.4 = 19.5 mm ≈ 20 mm. Therefore, a 4-inch pipe: 20mm, a 6-inch pipe: 25mm.