Product Description
Ductile Iron Universal Coupling for vavles, pipes
Notice:We are a factory with 16 years of experience, we believe that we have absolute advantages in price and quality.
FEATURES
| 1. For STEEL,DI,UPVC,CI,and AC pipes or almost any other rigid pipe material. |
| 2. In the form of wide range (Up to 23mm) couplings,are designed to join pipes of various outside diameters with the same or different nominal bore. |
| 3. PN16 operating pressure. |
| 4. The ability of universal coupling to join dissimilar pipe materials is a bonus feature in both repair or permanent situations. |
| Standards & Specifications | |
| Manufacture | BSEN1563 / EN-GJS(QT)-450-10 |
| Coating | WIS4-52-01 |
| Gasket | EN681-2 |
| Test | EN14525 / BS8561 |
| Working Pressure | PN10 / PN16 |
| Size & Material | |||
| Size Range | DN50-600 | ||
| Main material | Body | CARBON STEEL / DUCTILE IRON | |
| End Ring | DUCTILE IRON GGG-40 | ||
| Gasket | EPDM / NBR / SBR | ||
| Bolts & Nuts | CARBON STEEL | ||
| Coating | EPOXY coating | ||
| UNIVERSAL COUPLING drawings & Dimensions |
| Related product show |
| ZheJiang zHangZhoui Valve Industry Co.,Ltd is an integrity valve manufacturer, which has its own foundry, matching shop, and assembly line. Our company has passed ISO9001,Wras and CE Certification.
Our main products are gate valve, butterfly valve, check valve and control valve, we have been exported to Japan, Singapore, France, USA, Australia and so on, our valves satisfies to the international standard like GB, ANSI/API, DIN as well as client’s special specifications. The valves have met with warm reception based on excellent quality, competitive price, good shipment and timely delivery time all over the world. |
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| Our products |
| Packaging |
| Certifications |
FAQ
1.Can I have a sample order for valve?
A: Definitely Yes.We welcome sample order to test and check quality. Mixed samples are acceptable.
2. Can you OEM or ODM?
A:Yes, we have a great research & development team. The products can be made according to your request.Please send us high resolutionimages,your logo and other materials needed . We will send you finished files for confirmation.
3. Can you provide the relevant documentation and certificate?
A:Yes, we can provide you with the documentation and certificate you need ,IS09001:2000 international quality system certification,(CE)certification of the European Community, Det Norske Veritas (DNV) factory certification, Lloyd’s Register (LR) factory certification, China Classification Society (CCS) quality system certification and the FM and UL certification of the US, Bureau Veritas(BV) ,American Bureau of Shipping(ABS) etc.Of course we can also provide you the test Report; Certificate of Material Analysis; Certificate of Origin; and other export documents which required.
4.How to proceed an order for valve?
A: Step1 let me know your requirements or application. Step 2 We quote according to your requirements or our suggestions. Step 3 Customer confirms the samples and places deposit for formal order. Step 4 We arrange the prodution.
5.What is your terms of delivery?
A: We accepte EXW,FOB,CIF,etc. You can choose the 1 which is the most convenient for you.
6.What’s the package and how do you ship the goods?
A: Usually is wood pallet as your requst. We usually ship by sea.Airline shipping is also optional.
7. How to deal with after sales?
A: warranty time : 24 months from the shipment ; and we will be responsible for all the quality problems. Quality control : High quality mold./Raw materials control/Production process quality control/Final inspection/Water testing (no leaking).
8. What is the average lead time?
A:For samples, the delivery time is about 2-5 days. For mass production, the lead time is about 15-50 days after receiving the deposit payment. we can provide production schedule and related photos every 2 weeks. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products.If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate our production plan to your needs.
9. Why choose us?
A:We are a verified supplier and creditable company on Made-in-China, Genuine produces with excellent quality and competitive price, we are focusing on the long term relationship with customers, Genuine produces with excellent quality and competitive price. After-Services will be highly-satisfing.
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Signs of Wear or Failure in a Universal Coupling
Universal couplings are critical components in power transmission systems, and detecting signs of wear or impending failure is crucial to prevent equipment damage and ensure safe operation. Here are some common signs to look out for:
- Abnormal Noise: Unusual noises, such as clicking, grinding, or squeaking, during equipment operation can indicate misalignment, wear, or damaged universal coupling components.
- Vibration: Excessive vibration in the machinery may suggest misalignment or imbalance in the universal coupling or connected components.
- Visible Wear: Inspect the universal coupling visually for signs of wear, such as deformation, cracks, or visible damage to the coupling elements or shaft connections.
- Looseness: Check for any looseness in the universal coupling, shaft connections, or locking mechanisms. Loose components can lead to misalignment and accelerated wear.
- Shaft Movement: If there is axial or radial movement in the shafts during operation, it may indicate worn or damaged universal coupling components.
- Increased Operating Temperature: A rise in operating temperature beyond normal levels could be a result of friction and misalignment in the universal coupling.
- Reduced Performance: If the equipment’s performance declines, such as reduced power transmission efficiency or speed fluctuations, it may be a sign of coupling wear or failure.
- Grease Leakage: In grease-lubricated universal couplings, excessive grease leakage around the coupling seals can be an indication of seal damage or wear.
- Frequent Maintenance Issues: If the machinery equipped with a universal coupling requires frequent maintenance or repairs, it may be due to coupling issues that need attention.
- Age and Service Life: Consider the age of the universal coupling and its service life. Over time, couplings experience wear and fatigue, and older couplings may require closer inspection.
If any of these signs are observed, it is essential to take immediate action. Discontinue equipment operation, inspect the universal coupling thoroughly, and consult a qualified professional to determine the cause and plan necessary repairs or replacement. Regular maintenance and inspection can help detect potential issues early, ensuring the safe and efficient operation of the mechanical system.
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.
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.
editor by CX 2024-03-26