China Standard Pipe Coupling, Ductile Iron Flexible Universal Coupling universal coupling

Product Description

Pipe Coupling / Universal Joint Coupling / Universal Coupling

1. Application : 

*  used for pipe connection .
*  suit for Ductile Iron Pipe, Cast Iron Pipe, Steel, AC, Plastic pipe
*  Working pressure:  PN10 / PN16
*   Suit for Water, Neutral Liquids and Sewage

2. Features :

*   wide range of tolerance
*   corrosion resistance
*   allow angular deflection of +/- 4°

3.  List of Sizes :

S/N Size O.D Range
  mm mm
1 DN40 48-60
2 DN50 59-73
3 DN65 72-85
4 DN80 88-103
5 DN100 96-116
6 108-120
7 109-128
8 DN125 132-146
9 138-153
10 DN150 158-172
11 159-182
12 DN175 192-210
13 DN200 198-225
14 218-235
15 DN250 242-262
16 250-267
17 250-274
18 272-289
19 DN300 315-332
20 322-339
21 DN350 340-360
22 351-378
23 374-391
24 DN400 390-410
25 398-430
26 417-437
27 425-442
28 DN450 450-463
29 455-475
30 476-500
31 DN500 500-508
32 500-533
33 526-546
34 DN600 600-630
35 608-636
36 630-650
37 DN700 710-739
38 DN800 816-842

Note: we accept your specific dimensions which are not included in the above list.

4. Project Cases :

5. Joint Product Series :

universal coupling

What are the Common Materials Used in Manufacturing Universal Couplings?

Universal couplings are commonly manufactured using a variety of materials, each chosen based on its mechanical properties, durability, and compatibility with the application. Some of the common materials used in manufacturing universal couplings include:

  • Steel: Steel is one of the most widely used materials for universal couplings. It offers excellent strength, durability, and resistance to wear. Carbon steel and alloy steel are commonly used for general-purpose universal couplings.
  • Stainless Steel: Stainless steel is chosen for its corrosion resistance and ability to withstand harsh environmental conditions. It is commonly used in applications where the coupling may be exposed to moisture, chemicals, or high temperatures.
  • Aluminum: Aluminum is lightweight and has good corrosion resistance. It is often used in applications where weight reduction is essential, such as in the automotive and aerospace industries.
  • Cast Iron: Cast iron is known for its high strength and wear resistance. It is commonly used for heavy-duty applications and situations where shock loads may be present.
  • Bronze: Bronze is a material chosen for its self-lubricating properties. It is commonly used in applications where lubrication may be limited or difficult.
  • Plastics: Some universal couplings use high-strength plastics, such as polyurethane or nylon, for specific applications where non-metallic materials are preferred due to factors like electrical insulation or chemical resistance.

The choice of material depends on factors such as the application’s operating conditions, load requirements, temperature range, and potential exposure to corrosive or abrasive substances. Manufacturers select the appropriate material to ensure that the universal coupling performs reliably and efficiently in its intended environment.

universal coupling

Are there special half couplings designed for specific types of pipes (e.g., stainless steel, PVC)?

Yes, there are special half couplings designed to accommodate specific types of pipes, such as stainless steel and PVC. The selection of the half coupling material depends on the material of the pipe being used in the system. Here are some common types of half couplings designed for specific pipe materials:

1. Stainless Steel Half Couplings: These half couplings are specifically designed for use with stainless steel pipes. Stainless steel half couplings offer excellent corrosion resistance and durability, making them suitable for applications in industries where corrosion or chemical compatibility is a concern.

2. PVC Half Couplings: PVC half couplings are designed for use with PVC (polyvinyl chloride) pipes commonly used in plumbing and irrigation systems. These couplings provide a secure and leak-resistant connection for PVC pipes and are typically non-corrosive and lightweight.

3. Carbon Steel Half Couplings: Carbon steel half couplings are commonly used with carbon steel pipes in various industrial applications. They offer good strength and durability, making them suitable for high-pressure and high-temperature systems.

4. Brass Half Couplings: Brass half couplings are used with brass pipes in plumbing and other low-pressure applications. Brass provides good corrosion resistance and is often preferred for its aesthetic appearance.

5. Copper Half Couplings: Copper half couplings are designed for use with copper pipes, commonly used in plumbing and refrigeration systems. Copper offers excellent heat and electrical conductivity and is resistant to corrosion.

6. Ductile Iron Half Couplings: Ductile iron half couplings are used with ductile iron pipes, offering high strength and ductility. They are commonly used in water and wastewater applications.

7. Galvanized Half Couplings: Galvanized half couplings are coated with zinc to provide corrosion resistance. They are used with galvanized pipes in outdoor and exposed environments.

The choice of half coupling material should match the material of the pipe to ensure compatibility, prevent corrosion, and maintain the overall integrity of the system. It is essential to consult with coupling manufacturers or industry experts to select the appropriate half coupling material based on the specific application and pipe material used in the system.

universal coupling

How does a Universal Coupling Work to Transmit Torque and Rotation?

A universal coupling, also known as a universal joint or U-joint, is a mechanical device used to transmit torque and rotation between two shafts that are not in a straight line and have angular misalignment. It allows for flexible coupling between the shafts, enabling power transmission even when they are at different angles to each other.

The basic design of a single universal joint consists of two yokes, each attached to the end of the shafts to be connected. The yokes are connected by a cross-shaped intermediate component, often referred to as the spider or cross. The spider has four arms, each fitting into a yoke, creating a flexible joint.

When one shaft rotates, the spider transmits the motion to the other yoke and, consequently, to the second shaft. This mechanism allows the universal coupling to handle angular misalignment between the shafts. The universal joint can accommodate small angles of misalignment, making it ideal for applications where the shafts are not perfectly aligned.

The double universal joint, also known as the double Cardan joint, consists of two single universal joints connected end-to-end with an intermediate shaft in between. This design reduces the angular variation between the input and output shafts, providing a smoother rotation and reducing vibration in certain applications.

The constant velocity joint (CV joint) is a specialized type of universal joint that maintains a constant velocity ratio between the input and output shafts. It is commonly used in automotive drive shafts to provide smooth power transmission, especially in front-wheel-drive vehicles, where the drive shafts must adjust to changing angles as the wheels turn.

Overall, universal couplings are essential components in various mechanical systems, especially in vehicles, industrial machinery, and power transmission applications. They allow for flexible power transmission while compensating for misalignment, making them a versatile and widely used coupling solution.

China Standard Pipe Coupling, Ductile Iron Flexible Universal Coupling  universal couplingChina Standard Pipe Coupling, Ductile Iron Flexible Universal Coupling  universal coupling
editor by CX 2023-09-14