Product Description
Universal coupling
Enables the mechanical jointing of pipes made of different materials and of various outside diameters
Description
Wide outside diameter range: an average of 29 mm.
High performance
– Permanent leak tight joint when compressing the gasket between the end ring and the sleeve CHINAMFG the pipe surface
– Epoxy powder coating (250 μm) and Geomet 500 Gr. B for the bolts.
Ease and speed of installation:
– Angular deflection ± 5° by side.
– Absorbs expansion and contraction.
– Accommodates misalignment.
– Important setting gap.
Conformity to standards
– EN 14525 : Ductile iron wide tolerance couplings and flange adaptors for use with pipes of different materials: ductile iron, Grey iron, Steel, PVC-U, PE, Fiber-cement.
– NF A 48-830: Foundry products – Spheroidal graphite cast iron fittings for PVC drinking water pipes under pressure,
– EN 545: Ductile iron pipes, fittings, accessories and their joints for water pipelines
– requirements and test methods,
– ISO 2531: Ductile iron pipes, fittings, and accessories and their joints for water applications.
Approval:- Drinking water approved (WRAS).
Note:
– This coupling does not resist to longitudinal forces and pipe pullout will occur. Ensure adequate restraint is provided.
– Not recommended for PE pipes.
Technical data
Range: DN 40 to 600.(Higher DN, please consult uUniversal coupling
Enables the mechanical jointing of pipes made of different materials and of various outside diameters
Description
Wide outside diameter range: an average of 29 mm.
High performance
– Permanent leak tight joint when compressing the gasket between the end ring and the sleeve CHINAMFG the pipe surface
– Epoxy powder coating (250 μm) and Geomet 500 Gr. B for the bolts.
Ease and speed of installation:
– Angular deflection ± 5° by side.
– Absorbs expansion and contraction.
– Accommodates misalignment.
– Important setting gap.
Conformity to standards
– EN 14525 : Ductile iron wide tolerance couplings and flange adaptors for use with pipes of different materials: ductile iron, Grey iron, Steel, PVC-U, PE, Fiber-cement.
– NF A 48-830: Foundry products – Spheroidal graphite cast iron fittings for PVC drinking water pipes under pressure,
– EN 545: Ductile iron pipes, fittings, accessories and their joints for water pipelines
– requirements and test methods,
– ISO 2531: Ductile iron pipes, fittings, and accessories and their joints for water applications.
Approval:- Drinking water approved (WRAS).
Note:
– This coupling does not resist to longitudinal forces and pipe pullout will occur. Ensure adequate restraint is provided.
– Not recommended for PE pipes.
Technical data
Range: DN 40 to 600.(Higher DN, please consult us)
Max. working pressure: PN 16
Temperatures: from
2. How soon can I get a price quote?
Once we know the Size, material, drive method we can provide you with 1 competitive price quote within 24 hours.
3. Can I get a sample?
Yes, the samples are free for you. But you need to offer 1 courier account NO. to afford the fee for samples shipping. The samples’ sending usually takes 5-7days.
4. How can my order produced by my brand?
Yes, you can. Pls offer your brand or LOGO design to us(.AI or.PSD format), then we could produce all goods with your brand or LOGO.
5. What’s your delivery time?
Except our legal holiday, it will take 2-4 weeks for us to finish all your orders’ production.
6. Is there a minimum order requirement?
Due to the high machine setup cost and shipping freight, our minimum order quantity is 5pcs
7. Do you have butterfly valve related accessories?
Yes, we have. We have accessories: pneumatic actuators, electric actuators, limit switches, solenoid valves, etc.
8. Will you match competitors’ prices?
If you find a lower price elsewhere for the exact same specification, we will meet or beat that price as long as it is a little higher than our cost price.
9. What are your terms of delivery?
We accept FOB, CIF etc. You can choose the 1 which is the most convenient or cost effective for you.
10. Where can I meet you by face to face?
A,Our headquarter is located in ZheJiang , if you travel to ZheJiang , you can visit our office at any time, we could pick you up from your location in ZheJiang and ZheJiang .
B,Our factories are located in ZheJiang and HangZhou, welcome to visit our factory before you cooperate with us.
C,We will attend China Spring Canton Fair and China Autumn Canton Fair every year, welcome to visit our booth at that time.
11. How can I be your sole agent in our country?
Welcome you to become our sole agent firstly. According to different countries’ demand, if your yearly purchase quantity from us can reach 10000 to 30000 pcs you could be our sole agent in your country. If you wanna know exact quantity requirement for each country, pls feel free to contact us at any time.
Torque and Speed Ratings of Flange Couplings
Flange couplings are available in various sizes and designs to accommodate a wide range of torque and rotational speed requirements. The torque and speed ratings of flange couplings depend on several factors, including their size, material, and design.
Torque Rating:
The torque rating of a flange coupling indicates the maximum amount of torque it can transmit without experiencing failure or damage. It is typically specified in Nm (Newton-meters) or lb-ft (pound-feet). The torque rating varies for different sizes and types of flange couplings. Larger flange couplings generally have higher torque ratings compared to smaller ones.
Speed Rating:
The speed rating of a flange coupling represents the maximum rotational speed at which it can operate reliably without excessive vibration or wear. It is typically expressed in RPM (revolutions per minute). The speed rating is influenced by factors such as the design, material, and balancing of the flange coupling. Higher-speed applications require flange couplings that can handle the increased centrifugal forces and dynamic loads associated with higher RPMs.
Size and Type:
The torque and speed ratings vary for different sizes and types of flange couplings. For example:
- Smaller flange couplings, such as those used in light-duty applications, may have torque ratings ranging from a few Nm to several hundred Nm, and speed ratings up to a few thousand RPM.
- Larger flange couplings, used in heavy-duty industrial applications, can have torque ratings exceeding several thousand Nm and speed ratings that may reach tens of thousands of RPM.
- Flexible flange couplings may have slightly lower torque ratings compared to rigid flange couplings but offer greater misalignment compensation.
Manufacturer Specifications:
It is essential to refer to the manufacturer’s specifications and technical data to determine the specific torque and speed ratings for each size and type of flange coupling. Manufacturers typically provide detailed performance data to help users select the appropriate flange coupling for their specific application.
Application Considerations:
When selecting a flange coupling, it is crucial to consider the torque and speed requirements of the application. The operating conditions, such as load fluctuations and thermal effects, should also be taken into account to ensure the flange coupling’s reliable performance and longevity.
Conclusion:
Flange couplings come in various sizes and designs, each with its own torque and speed ratings. Properly selecting a flange coupling that meets the specific torque and speed requirements of the application is essential to ensure efficient and trouble-free power transmission in mechanical systems.
What are the Temperature and Environmental Limitations of Flange Couplings?
Flange couplings, like any mechanical component, have certain temperature and environmental limitations that can impact their performance and lifespan. It’s crucial to understand these limitations to select the appropriate flange coupling for specific applications. Here are the key factors to consider:
1. Temperature: Flange couplings are typically manufactured from materials that can withstand a range of temperatures. The maximum and minimum operating temperatures will depend on the material composition of the coupling. Common materials used for flange couplings, such as steel or stainless steel, can handle a broad temperature range from -40°C to 300°C or higher. However, extreme temperatures beyond the recommended range can cause material degradation, loss of strength, and potential failure of the coupling. In high-temperature applications, specialized materials like heat-resistant alloys may be used to maintain coupling integrity.
2. Corrosive Environments: Flange couplings operating in corrosive environments, such as chemical processing plants or marine applications, should be made from materials that resist corrosion. Stainless steel or other corrosion-resistant alloys are commonly used for such conditions. Regular inspection and maintenance are crucial to monitor the coupling’s condition and protect against premature failure due to corrosion.
3. Hazardous Environments: In certain industries, flange couplings may be exposed to hazardous or explosive atmospheres. In such cases, it’s essential to choose flange couplings that meet relevant safety standards, such as ATEX or IECEx, and are specifically designed and certified for use in hazardous environments.
4. Cleanliness and Hygienic Requirements: Industries such as food processing, pharmaceuticals, and biotechnology have strict hygiene standards. Flange couplings used in these applications should be easy to clean and constructed from materials that meet sanitary requirements to prevent contamination and ensure product purity.
5. Environmental Factors: Flange couplings used in outdoor applications may be exposed to various environmental factors such as moisture, dust, and UV radiation. Choosing couplings with appropriate protective coatings or seals can help enhance their resistance to environmental elements and extend their service life.
Before selecting a flange coupling for a specific application, it’s essential to consider the temperature and environmental conditions it will be exposed to. Consulting with coupling manufacturers or engineers can help ensure that the chosen flange coupling is suitable for the intended operating environment and will deliver reliable performance over its expected lifespan.
Materials Used in Manufacturing Flange Couplings
Flange couplings are manufactured using various materials, each offering specific properties and advantages. The choice of material depends on factors such as application requirements, environmental conditions, and cost considerations. Here are some commonly used materials in manufacturing flange couplings:
- 1. Steel: Steel is one of the most common materials for flange couplings. It offers excellent strength, durability, and resistance to wear. Steel couplings are suitable for a wide range of applications and can handle high torque and heavy loads.
- 2. Stainless Steel: Stainless steel is chosen for its superior corrosion resistance, making it ideal for applications where the coupling is exposed to moisture, chemicals, or aggressive substances. Stainless steel flange couplings are common in industries such as food processing, pharmaceuticals, and marine.
- 3. Cast Iron: Cast iron couplings are known for their excellent strength and vibration-damping characteristics. They are often used in industrial settings, including pumps, compressors, and conveyor systems.
- 4. Aluminum: Aluminum couplings are lightweight and suitable for applications where weight is a concern. They are commonly used in industries such as aerospace and automotive.
- 5. Brass: Brass couplings offer good corrosion resistance and electrical conductivity. They are used in specific applications that require these properties.
- 6. Bronze: Bronze couplings are valued for their high strength, corrosion resistance, and resistance to wear. They are commonly used in marine and heavy machinery applications.
- 7. Plastic: Plastic couplings, such as nylon or polyurethane, are used in applications where weight, non-conductivity, and chemical resistance are critical factors.
- 8. Composite Materials: Some modern flange couplings may use composite materials that combine different properties, such as strength, flexibility, and corrosion resistance.
When selecting the material for a flange coupling, it is essential to consider factors such as load capacity, temperature range, chemical exposure, and the specific demands of the application. Proper material selection ensures that the flange coupling performs optimally and has a long service life in its intended environment.
editor by CX 2023-11-13