Product Description
Universal Coupling / Pipe Coupling/ Gibault Coupling
Range of Size: 1 1/2” – 32” (DN40-800mm)
Pressure : PN10/PN16
1. Description:
Universal Couplings offer an easy and economical way of joining pipe- whether the pipe is of the same nominal size and/or type or different at each couplings end .
Universal Couplings will handle most of waterworks couplings needs and are capable of connecting most classes of water pipe.
2. Application :
* used for pipe connection .
* suit for Ductile Iron Pipe, Cast Iron Pipe, Steel, Asbestos Cement Pipe, PE, PVC, HDPE Pipe and etc.
* Working pressure: PN10 / PN16
* Suit for Water, Neutral Liquids and Sewage
3. Features :
* wide range of tolerance
* corrosion resistance
* allow angular deflection of +/- 4°
4. Material Sheet :
4. List of Sizes :
| S/N | Size | O.D Range | Sleeve Length | Bolts |
| mm | mm | mm | mm | |
| 1 | DN40 | 48-60 | 98 | M12x170 |
| 2 | DN50 | 59-73 | 98 | M12x170 |
| 3 | DN65 | 72-85 | 98 | M12x170 |
| 4 | DN80 | 88-103 | 98 | M12x180 |
| 5 | DN100 | 96-116 | 98 | M12x180 |
| 6 | 108-120 | 98 | M12x190 | |
| 7 | 109-128 | 98 | M12x180 | |
| 8 | DN125 | 132-146 | 98 | M12x180 |
| 9 | 138-153 | 98 | M12x180 | |
| 10 | DN150 | 158-172 | 105 | M12x200 |
| 11 | 159-182 | 110 | M12x200 | |
| 12 | DN175 | 192-210 | 130 | M12x210 |
| 13 | DN200 | 198-225 | 130 | M12x210 |
| 14 | 218-235 | 130 | M12x220 | |
| 15 | DN250 | 242-262 | 130 | M12x220 |
| 16 | 250-267 | 130 | M12x220 | |
| 17 | 250-274 | 130 | M12x220 | |
| 18 | 272-289 | 130 | M12x220 | |
| 19 | DN300 | 315-332 | 130 | M12x220 |
| 20 | 322-339 | 130 | M12x220 | |
| 21 | DN350 | 340-360 | 130 | M12x220 |
| 22 | 351-378 | 130 | M14x230 | |
| 23 | 374-391 | 130 | M14x230 | |
| 24 | DN400 | 390-410 | 130 | M14x220 |
| 25 | 398-430 | 140 | M14x270 | |
| 26 | 417-437 | 130 | M14x240 | |
| 27 | 425-442 | 130 | M14x240 | |
| 28 | DN450 | 450-463 | 130 | M14x270 |
| 29 | 455-475 | 130 | M14x270 | |
| 30 | 476-500 | 130 | M14x270 | |
| 31 | DN500 | 500-508 | 130 | M16x270 |
| 32 | 500-533 | 140 | M14x280 | |
| 33 | 526-546 | 130 | M14x270 | |
| 34 | DN600 | 600-630 | 130 | M14x270 |
| 35 | 608-636 | 130 | M14x270 | |
| 36 | 630-650 | 130 | M14x270 | |
| 37 | DN700 | 710-739 | 155 | M16x280 |
| 38 | DN800 | 816-842 | 180 | M16x330 |
4. Project Cases :
5. Joint Series :
6. Company Profile :
HangZhou CHINAMFG Pipeline Co., Ltd is the professional chinese supplier and exporter of repair clamps and coupling for water lines with working pressure PN10/16 . The range of our products including Universal Coupling, Universal Flange Adaptor, Restraint Coupling, Restraint Flange Adaptor, Step Coupling, Repair Clamps and etc .
Our product conform the international standard ISO2531, BS EN545 EN598 .
We export to many countries including USA, UK, Spain, Australia, Russia, Indonesia, Singapore, Malaysia and etc.
7. Certificates :
8. Contact us :
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How do flexible couplings handle axial movement in rotating machinery?
Flexible couplings are designed to handle different types of misalignments in rotating machinery, including axial movement or axial misalignment. Axial movement occurs when there is displacement along the axis of rotation, causing one shaft to move closer to or away from the other shaft. Here’s how flexible couplings handle axial movement:
- Sliding Capability: Many flexible couplings, especially those with elastomeric elements or certain designs, can slide along the shafts they connect. This sliding capability allows the coupling to accommodate axial movement without introducing additional stress on the connected components. The elastomeric elements can compress or stretch slightly to absorb the axial displacement.
- Multiple-piece Designs: Some flexible couplings consist of multiple pieces, which allow for axial movement. These designs often have a floating member or a spacer that separates the two shaft-connected components. The floating member can move axially as needed, while still transmitting torque and compensating for other misalignments.
- Double-Cardanic Design: Certain high-performance flexible couplings use a double-cardanic design, allowing for misalignment in multiple directions, including axial movement. This design features two sets of flexible elements that work together to accommodate different misalignments and provide a high degree of flexibility.
It’s important to note that while flexible couplings can handle a certain degree of axial movement, excessive axial misalignment might require a different type of coupling or additional measures to be addressed properly.
During the selection and installation process, it’s essential to consider the application’s axial movement requirements and choose a flexible coupling that can accommodate the expected axial displacement while still providing the desired performance, such as vibration damping, shock absorption, or precision motion control.
Can flexible couplings be used in marine and automotive applications?
Yes, flexible couplings are commonly used in both marine and automotive applications. They offer various advantages that make them suitable for these industries:
- Misalignment Compensation: In marine and automotive systems, there can be misalignments due to factors such as hull flexing in marine vessels or engine movements in vehicles. Flexible couplings can accommodate these misalignments, ensuring efficient power transmission between the engine and the propeller or wheels.
- Vibration Damping: Both marine and automotive environments experience vibrations from engines, propellers, or road conditions. Flexible couplings help dampen these vibrations, reducing wear on components and enhancing the comfort of passengers or crew members.
- Shock Load Absorption: Marine vessels and vehicles can encounter shock loads during operation, especially in rough sea conditions or uneven terrains. Flexible couplings can absorb and dissipate the impact of these shock loads, protecting the drivetrain and transmission components.
- Compact Design: Space is often limited in marine vessels and automotive systems. Flexible couplings come in various compact designs, making them suitable for applications with restricted installation space.
- Corrosion Resistance: Marine environments expose components to corrosive seawater, while automotive systems may encounter exposure to road salt and other corrosive substances. Flexible couplings made from corrosion-resistant materials, such as stainless steel or non-metallic compounds, are ideal for these applications.
- Easy Maintenance: Flexible couplings with self-lubricating features or low maintenance requirements are well-suited for marine and automotive applications, where regular maintenance can be challenging.
- High Torque Capacity: Automotive systems, especially in heavy-duty vehicles, require couplings that can handle high torque levels. Flexible couplings designed for automotive use offer high torque capacity and reliability.
Overall, the adaptability, vibration damping, and misalignment compensation provided by flexible couplings make them suitable for various marine and automotive applications. Whether used in boats, yachts, ships, cars, trucks, or other vehicles, flexible couplings contribute to smooth and reliable power transmission, leading to improved performance and reduced maintenance requirements.
Can you explain the different types of flexible coupling designs available?
There are several types of flexible coupling designs available, each with its unique construction and characteristics. These designs are tailored to meet specific application requirements and address different types of misalignment and torque transmission needs. Here are some of the most common types of flexible couplings:
- Jaw Couplings: Jaw couplings consist of two hubs with curved jaws and an elastomer spider placed between them. The spider acts as a flexible element and can compensate for angular and parallel misalignment. Jaw couplings are widely used in various industrial applications due to their simple design and effectiveness in handling misalignment and vibration damping.
- Disc Couplings: Disc couplings use thin metallic discs with a series of alternating slits and flanges to connect the shafts. The disc coupling design allows for excellent misalignment compensation, including angular, parallel, and axial misalignment. Disc couplings are known for their high torsional stiffness and precise torque transmission capabilities.
- Gear Couplings: Gear couplings consist of toothed hubs connected by an external sleeve with gear teeth. They are well-suited for applications with high torque and moderate misalignment. Gear couplings offer good misalignment compensation and high torque capacity, making them popular in heavy-duty industrial applications.
- Beam Couplings: Beam couplings use a single piece of flexible material, often a metal beam, to connect the shafts. The material’s flexibility allows for angular and axial misalignment compensation. Beam couplings are compact, lightweight, and provide low inertia, making them suitable for applications with high-speed requirements.
- Bellows Couplings: Bellows couplings consist of a bellows-like flexible structure that connects the two hubs. They can compensate for angular, parallel, and axial misalignment. Bellows couplings are known for their high torsional stiffness and ability to maintain constant velocity transmission.
- Oldham Couplings: Oldham couplings use three discs, with the middle one having a perpendicular slot. This design allows for angular misalignment compensation while transmitting torque between the hubs. Oldham couplings are often used when electrical isolation between shafts is required.
Each flexible coupling design has its strengths and limitations, and the choice depends on factors such as the application’s torque requirements, misalignment conditions, operating environment, and speed. Proper selection of the coupling type ensures optimal performance, efficiency, and reliability in various mechanical systems and rotating machinery.
editor by CX 2024-04-10