Product Description
Product Description
Factory Casting UL/FM Ductile Iron Grooved Mechanical Flexible/Rigid Coupling
Ductile iron grooved pipe fittings and couplings (FM and UL approved) mainly including 2 kinds of grooved products:
(1) the pipe fittings function on connecting and sealing such as rigid coupling, flexible coupling, mechanical tee and grooved flange,
(2) the pipe fittings function on connecting and transition such as bend, tee, cross, reducer.
Specification
| Name | Rigid coupling, Flexible coupling, 90° Elbow, 45° Elbow, 22.5° Elbow, 11.25° Elbow, Split Flange, Adaptor Flange, Cap | |
| Tee, Reducing Tee(Grooved/Threaded), Mechnical Tee(Grooved/Threaded), U-bolted Mechnical Tee | ||
| Cross, Reducing Cross(Grooved/Threaded), Mechnical Cross(Grooved/Threaded) | ||
| Reducer(Grooved/Threaded), Grooved Eccentric Reducer | ||
| H.S. CODE | 735710000 | |
| Technology | Casting | |
| Connections | Grooved-Thread End, Grooved End | |
| Pressure Rate | 300PSI / 2.07MPa | |
| Size | 1” – 12” | |
| Pipe O.D. | 33.7MM – 323.9MM | |
| Surface Finish | Epoxy Powder,Painting,Galvanization,Dacromet (in Red/Orange/Blue/White Color) | |
| Design Standard | American Standard | ANSI/ASTM |
| European Standard | EN | |
| British Standard | BS | |
| Germany Standard | DIN | |
| Japanese Standard | JIS | |
| ISO Standard | ISO | |
| Thread Standard | ASME B.1.20.1 / EN15716 / DIN2999 / ISO7-1 / ISO228 / IS554 / BS EN15716 / BS 21.173 | |
| Material Standard | Ductile Iron confirms to ASTM A-536 Gr65-45-12,EN1563,JIS G5502,QT450-12 | |
| Gasket Material | EPDM,NBR or Silicon Rubber | |
| Bolts & Nuts | ISO 898-1class 8.8 | |
| Flanges Standard | PN series or Class series | |
| Packages | Plywood Cases or Plywood Pallets or Boxes | |
| Application | Fire Fighting System,Petrochemical & Gas Industry,Chemical,Machinery,Electric Power,Construction Water Works,Valve Industry,etc. | |
| Advantages | High Quality + Ready Stock + Faster Delivery + Customized | |
| Brand | LMP | |
| Certificate | ISO9001,API,CE,UL/FM | |
Company Profile
We are a leading manufacturer of pipe fittings and valves establised in 1996
1. We have over 20 years experience in exporting pipeline products.
2. 5 factories,complete 100+ projects every year.
3. Your 1 more good choice for better customer service.
Certifications
FAQ
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How does a flexible coupling handle electrical insulation between shafts?
Flexible couplings are typically not designed to provide electrical insulation between shafts. In most cases, flexible couplings are used solely for the purpose of transmitting mechanical power from one shaft to another while accommodating misalignment and absorbing shocks and vibrations. They do not offer any electrical isolation or insulation properties.
When electrical insulation is required between two rotating shafts in a system, additional components or specialized couplings are used. For applications where electrical isolation is necessary, insulated couplings or special insulation components can be employed. These types of couplings feature insulating materials, coatings, or designs that prevent electrical current from flowing between the connected shafts.
Insulated couplings can be beneficial in certain applications, such as electric motor drives or systems involving sensitive electronics. They help prevent stray currents, ground loops, and electrical interference that could potentially damage equipment or affect the accuracy of electronic signals. However, it is important to note that not all flexible couplings provide this electrical insulation capability, and users should carefully select couplings that meet the specific electrical isolation requirements of their application.
Summary: Flexible couplings, as standard mechanical components, do not inherently provide electrical insulation between shafts. They are primarily used for mechanical power transmission and misalignment compensation. If electrical insulation is needed between rotating shafts, insulated couplings or specialized components with insulating properties should be chosen to meet the specific requirements of the application.
What are the factors influencing the thermal performance of a flexible coupling?
The thermal performance of a flexible coupling can be influenced by several factors, including:
- Material Composition: The material used in the construction of the flexible coupling can impact its thermal performance. Different materials have varying thermal conductivity and heat resistance properties, which can affect how well the coupling dissipates heat generated during operation.
- Operating Speed: The rotational speed of the flexible coupling can influence its thermal behavior. Higher speeds can result in increased friction, leading to more heat generation. Couplings designed for high-speed applications often incorporate features to manage and dissipate heat effectively.
- Power Transmission: The amount of power transmitted through the flexible coupling plays a role in its thermal performance. Higher power levels can lead to increased heat generation, and the coupling must be designed to handle and dissipate this heat without compromising its integrity.
- Environmental Conditions: The ambient temperature and surrounding environment can impact the thermal performance of the flexible coupling. In high-temperature environments, the coupling may need to dissipate heat more efficiently to avoid overheating.
- Lubrication: Proper lubrication is essential for managing friction and heat generation within the coupling. Insufficient or inappropriate lubrication can lead to increased wear and heat buildup.
- Design and Geometry: The design and geometry of the flexible coupling can influence its thermal performance. Some coupling designs incorporate features such as cooling fins, ventilation, or heat sinks to enhance heat dissipation.
- Load Distribution: The distribution of loads across the flexible coupling can affect how heat is generated and dissipated. Proper load distribution helps prevent localized heating and reduces the risk of thermal issues.
Manufacturers consider these factors during the design and selection of flexible couplings to ensure they can handle the thermal demands of specific applications. Proper application and maintenance of the flexible coupling are also essential for optimizing its thermal performance and overall efficiency.
What are the differences between elastomeric and metallic flexible coupling designs?
Elastomeric and metallic flexible couplings are two distinct designs used to transmit torque and accommodate misalignment in mechanical systems. Each type offers unique characteristics and advantages, making them suitable for different applications.
Elastomeric Flexible Couplings:
Elastomeric flexible couplings, also known as flexible or jaw couplings, employ an elastomeric material (rubber or similar) as the flexible element. The elastomer is typically molded between two hubs, and it acts as the connector between the driving and driven shafts. The key differences and characteristics of elastomeric couplings include:
- Misalignment Compensation: Elastomeric couplings are designed to handle moderate levels of angular, parallel, and axial misalignment. The elastomeric material flexes to accommodate the misalignment while transmitting torque between the shafts.
- Vibration Damping: The elastomeric material in these couplings offers excellent vibration dampening properties, reducing the transmission of vibrations from one shaft to another. This feature helps protect connected equipment from excessive vibrations and enhances system reliability.
- Shock Load Absorption: Elastomeric couplings can absorb and dampen shock loads, protecting the system from sudden impacts or overloads.
- Cost-Effective: Elastomeric couplings are generally more cost-effective compared to metallic couplings, making them a popular choice for various industrial applications.
- Simple Design and Installation: Elastomeric couplings often have a straightforward design, allowing for easy installation and maintenance.
- Lower Torque Capacity: These couplings have a lower torque capacity compared to metallic couplings, making them suitable for applications with moderate torque requirements.
- Common Applications: Elastomeric couplings are commonly used in pumps, compressors, fans, conveyors, and other applications that require moderate torque transmission and misalignment compensation.
Metallic Flexible Couplings:
Metallic flexible couplings use metal components (such as steel, stainless steel, or aluminum) to connect the driving and driven shafts. The metallic designs can vary significantly depending on the type of metallic coupling, but some general characteristics include:
- High Torque Capacity: Metallic couplings have higher torque transmission capabilities compared to elastomeric couplings. They are well-suited for applications requiring high torque handling.
- Misalignment Compensation: Depending on the design, some metallic couplings can accommodate minimal misalignment, but they are generally not as flexible as elastomeric couplings in this regard.
- Stiffer Construction: Metallic couplings are generally stiffer than elastomeric couplings, offering less vibration dampening but higher torsional stiffness.
- Compact Design: Metallic couplings can have a more compact design, making them suitable for applications with limited space.
- Higher Precision: Metallic couplings often offer higher precision and concentricity, resulting in better shaft alignment.
- Higher Cost: Metallic couplings are typically more expensive than elastomeric couplings due to their construction and higher torque capacity.
- Common Applications: Metallic couplings are commonly used in high-speed machinery, precision equipment, robotics, and applications with high torque requirements.
Summary:
In summary, the main differences between elastomeric and metallic flexible coupling designs lie in their flexibility, torque capacity, vibration dampening, cost, and applications. Elastomeric couplings are suitable for applications with moderate torque, misalignment compensation, and vibration dampening requirements. On the other hand, metallic couplings are chosen for applications with higher torque and precision requirements, where flexibility and vibration dampening are less critical.
editor by CX 2024-04-13