Product Description
Product Description
Our main products are malleable iron pipe fittings , the brand is “G”. Others include Grooved fittings and couplings, Buttweld fittings, Steel pipe nipples and couplings, Flanges and Stainless steel thread fittings . It is widely used in fire protection, plumbing, oil, gas, infrastructure, construction and decoration etc. The products has passed the UL&FM fire safety certification. The main markets include the United States, Canada, Australia, Latin America, South America, South Africa, the Philippines, Indonesia and Vietnam, Saudi Arabia and so on.
| Standard | ANSI,ASTM,DIN,JIS,GB,BS |
| Materal | Ductile Iron (ASTM A536 Grade 65-45-12) |
| Color | Red RAL3000 , Orange , Bule or according to custom requirements |
| Surface Treatment | Paint, Epoxy, Galvanization or Dacroment |
| Threaded | BSPT NPT |
| Certification | UL FM CE ISO 9001 |
| Delivery Time | Normally within 15-30days |
| Pressure | 300PSI 500PSI 2.5MPA |
| Payment Terms | T/T L/C Or Other |
| Useage
|
1) Automatic sprinkler system for fire production on commercial,civil and municipal constructions like water supplying ,gas supplying , heat supplying , etc |
| 2)Industrial pipeline system on shipping , mine , textile oil field , power plant , etc | |
| 3)Pipeline system on subway station , railway station airport , seaport, brided , etc |
Detailed Photos
Package Detail
Certificate List
Company Profile
HangZhou Jizhong Malleable Co., Ltd. was established in 1990, nearly 30 years of production and sales experience, the company is located in HangZhou, the capital of ZheJiang Province, 300 kilometers away from ZheJiang , and same distance from the nearest port ZheJiang .
The company passed the ISO9001 management system certification and BV certification, the products passed the UL&FM fire safety certification.
Innovation, development, harmony and CHINAMFG is the purpose of our company; professional, rationality is our sales creed. We are committed to being your trusted partner.
FAQ
1.Are you a manufacturer?
Yes, our factory was set up in 1990.
2.How to confirm the goods quality before placing orders?
We have a perfect quality inspection system to ensure the quality of products.
3.Acceptable payment methods?
We can accept T/T, L/C, O/A, etc
4.How long will it take to deliver?
Generally 30-50 days delivery.
Look CHINAMFG to cooperating with you!
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What are the potential drawbacks or limitations of using rigid shaft couplings in certain applications?
Rigid shaft couplings, while offering benefits in certain scenarios, also have limitations that should be considered when selecting them for specific applications:
- Minimal Misalignment Compensation: Rigid couplings have limited ability to compensate for shaft misalignment, making them less suitable for applications with significant misalignment.
- Transmits Vibrations: Rigid couplings do not dampen vibrations, which can lead to increased wear and fatigue in connected components and decrease overall system lifespan.
- Higher Stress Concentration: Due to their rigid nature, these couplings can result in higher stress concentrations at the coupling ends, potentially leading to premature failure.
- Noisy Operation: Rigid couplings can amplify noise generated by connected equipment, contributing to a noisier operating environment.
- Requires Precise Alignment: Proper alignment during installation is crucial to prevent excessive loads on equipment and ensure reliable operation.
- Less Torsional Damping: Rigid couplings lack the torsional damping capabilities of some other coupling types, which may be necessary in systems with varying loads.
- Less Forgiving: Rigid couplings can transmit shocks and impacts directly to connected equipment, which may not be suitable for applications with frequent starts, stops, or heavy loads.
It’s important to carefully assess the specific requirements of an application and consider factors such as misalignment, vibration, torque transmission, and environmental conditions when deciding whether to use a rigid shaft coupling. In cases where the limitations of rigid couplings may pose challenges, other coupling types such as flexible, torsionally soft, or damping couplings could be more appropriate alternatives.
What are the maintenance requirements for rigid shaft couplings to extend their lifespan?
Rigid shaft couplings are mechanical components used to connect two shafts and transmit torque between them. While rigid couplings are known for their durability and minimal maintenance needs, proper care and maintenance can further extend their lifespan and ensure optimal performance. Here are key maintenance considerations:
- Lubrication: Some rigid couplings, especially those with moving parts like set screws, may require periodic lubrication to reduce friction and wear. Use appropriate lubricants as recommended by the manufacturer.
- Visual Inspection: Regularly inspect the coupling for signs of wear, corrosion, or damage. Look for cracks, dents, or any other abnormalities that could affect its performance. Address any issues promptly.
- Tightening Fasteners: If the rigid coupling is secured using fasteners such as set screws or bolts, ensure they are tightened to the manufacturer’s specifications. Loose fasteners can lead to misalignment and reduced coupling effectiveness.
- Alignment Check: Periodically check the alignment of the connected shafts. Misalignment can lead to increased stress on the coupling and premature wear. Realign the shafts if necessary.
- Coupling Integrity: Make sure the coupling is securely fastened and properly seated on both shafts. Any looseness or improper fitting can lead to vibrations and wear.
- Cleanliness: Keep the coupling and surrounding area clean from dirt, debris, and contaminants. Foreign particles can lead to increased wear and reduced performance.
- Environmental Factors: Consider the operating environment. If the coupling is exposed to harsh conditions, such as extreme temperatures or corrosive substances, take appropriate measures to protect the coupling’s surfaces and materials.
- Replacement of Worn Parts: If any components of the coupling show significant wear or damage, consider replacing them as per the manufacturer’s recommendations. This can prevent further issues and maintain coupling integrity.
- Manufacturer Guidelines: Always follow the maintenance recommendations provided by the coupling manufacturer. They can provide specific guidelines based on the coupling’s design and materials.
Proper maintenance practices not only extend the lifespan of rigid shaft couplings but also contribute to the overall reliability and efficiency of the connected machinery. Regular inspections and maintenance can help identify potential issues early, preventing costly downtime and repairs.
It’s important to note that maintenance requirements can vary based on the specific design and material of the rigid coupling. Consulting the manufacturer’s documentation and seeking professional advice can help establish a suitable maintenance schedule tailored to the coupling’s characteristics and the application’s demands.
What is a Rigid Shaft Coupling and How Does It Work in Mechanical Systems?
A rigid shaft coupling is a type of coupling used to connect two shafts together in a mechanical system. As the name suggests, it is designed to provide a rigid and solid connection between the shafts, without any flexibility or misalignment compensation.
The primary function of a rigid shaft coupling is to transmit torque from one shaft to another efficiently and with minimal backlash. It achieves this by directly connecting the two shafts using a rigid mechanical interface.
Rigid shaft couplings typically consist of two halves with flanges that are bolted or clamped together around the shaft ends. The flanges are precision machined to ensure accurate alignment of the shafts. Some common types of rigid shaft couplings include:
- Sleeve Couplings: These are the simplest type of rigid couplings and consist of a cylindrical sleeve with a bore that fits over the shaft ends. The two shafts are aligned and then secured together using screws or pins.
- Clamp or Split Couplings: These couplings have two halves that are split and bolted together around the shafts. The split design allows for easy installation and removal without the need to disassemble other components of the system.
- Flanged Couplings: Flanged couplings have two flanges with precision machined faces that are bolted together, providing a robust connection.
- Tapered Bushing Couplings: These couplings use a tapered bushing to lock the coupling onto the shafts, creating a secure and concentric connection.
Rigid shaft couplings are commonly used in applications where precise alignment is critical, such as in high-speed machinery, precision instruments, and power transmission systems. Since they do not have any flexibility, they are best suited for applications where shaft misalignment is minimal or can be controlled through accurate alignment during installation.
One of the main advantages of rigid shaft couplings is their ability to provide a direct and efficient transfer of torque, making them suitable for high-torque and high-speed applications. Additionally, their simple design and solid connection make them easy to install and maintain.
However, it’s essential to ensure proper alignment during installation to prevent premature wear and stress on the shafts and other components. In cases where misalignment is expected or unavoidable, flexible couplings like beam couplings, bellows couplings, or jaw couplings are more appropriate, as they can compensate for small misalignments and provide some degree of shock absorption.
editor by CX 2024-02-27