China best Good Quality 2-1/2 Flexible Coupling/ PVC Quick Coupling for Irrigation

Product Description

Good Quality 2-1/2 Flexible Coupling/ Pvc Quick Coupling for Irrigation

 

Good quality drainge system pvc pipe with rubber coupler / PVC fittings), plastics ball valves, plastic taps and mould, ect.

If you can give us a chance to cooperate with you, we are always in a position to quote you the most advantageous prices for higher quality merchandise.
So please do not hesitate to contact with us if you have any need.

We sincerely invite all domestic and overseas clients to come to advise and cooperate.

1. NBR 5648 fittings:
UPVC coupler
UPVC tee
UPVC reducing tee
UPVC female coupling
UPVC male adapter
UPVC 90deg elbow
UPVC female elbow
UPVC reducing coupling
UPVC reducing elbow

2. Properties:
1) Healthy, bacteriological neutral, conforming to drinking water standards
2) Resistant to high temperatures, good impact strength
3) Convenient and reliable installation, low construction expenses
4) Excellent heat-insulation property from minimum thermal conductivity
5) Lightweight, convenient to transport and handle, good for labor-saving
6) Smooth inner walls reduce pressure loss and increase flow speed
7) Sound insulation (reduced by 40% compared to galvanized steel pipes)
8) Light colors and excellent design ensure suitability for both exposed and hidden installation
9) Recyclable, environment-friendly, accords with CHINAMFG standards
10) Extremely long usage life for at least 50 years

3. Our business steps:
1)Communication: Customers interest in our products, discuss price, check sample quality
2)Negotiation: Talking about the sizes, quantity, and other details
3)Ordering: Settle down and place order to us
4)Producing: After orders, we start productions at once
5)Packing: While products come out of machines then packed
6)Delivery: Everything gets ready, place the ship, send to dock, to be shipped

Items  Descriptions 
Material PVC-U , PPR
Products Pipelines for water supply and drain ,Female and male Coupling ,Socket, Cap , Tee , Adapter , Elbow , Reducer, Union , Plug , Pipe Clip , Valve , Plastic Tap and Mould
Size 1/2″- 4″  20-110mm
Standard ASTM D2466,ASTM D2665 , BS4346, NBR5648, DIN8078 / 8077
Machines injection machines
Colors white and gray for PVC products , green ,grey, white and blue for PPR products
Working place PVC -15°-55°,PPR-20°-90°
Warranty at least 50 years
Delivery time 30-40 days
We have a mould workshop also we can make mould

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flexible coupling

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.

flexible coupling

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.

flexible coupling

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.

China best Good Quality 2-1/2 Flexible Coupling/ PVC Quick Coupling for Irrigation  China best Good Quality 2-1/2 Flexible Coupling/ PVC Quick Coupling for Irrigation
editor by CX 2024-04-10


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