Product Description

ISO2531 ductile cast iron ggg50 di DN400 universal flexible coupling for pvc pipes

Product Description

Universal Couplings are designed for use on air, water, sewer and gas pipeline. The coupling are wide tolerance product and fit all popular standard pipe  sizes, thus dramatically reducing the number of product to be stocked for maintanance purposes. The coupling are suitable for steel, PVC , ductile iron, asbestos cement, GRP, cast iron and concrete pipes.

Size:	DN40~DN600mm
Material:	Ductile iron, cast iron
Standard:	ISO2531, EN545
Pressure:	PN10/PN16
Body material:	Ductile iron with FBE ( fusion bonded epoxy) coating or Epoxy painting
Gasket materials:	NBR or EPDM
Bolts and Nuts:	Carbon steel with galvanized zinc plated G4.8/G8.8, or SS304/SS316
Surface treatment:	Epoxy Coated,Paint Coated,etc
Application	Gas, oil, water, etc
Package:	Wooden cases , protection layer or as per customers’ requirement.

 

Detailed Photos

 

Packaging

 

Related Products

 

Factory Show

 

Exhibition Show

MIDAS participates in international and domestic exhibitions every year.

 

Sales and Service Network

 

Clients in 108 countries CHINAMFG source our products!

 

Certifications

 

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

View More

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.

How do you select the right half coupling material based on the fluid or gas being conveyed?

When choosing the right half coupling material for a specific fluid or gas conveyance application, several factors need to be considered. The material selection is critical to ensure compatibility with the conveyed substance, prevent corrosion, and maintain the overall integrity of the coupling. Here are the steps to help select the appropriate half coupling material:

1. Identify the Conveyed Fluid or Gas: Determine the type of fluid or gas that will flow through the system. Consider factors such as the chemical composition, temperature, pressure, and whether it is corrosive or abrasive.

2. Check Material Compatibility: Ensure that the material of the half coupling is compatible with the conveyed substance. Some fluids or gases may react with certain materials, leading to corrosion or contamination. For example, corrosive chemicals may require corrosion-resistant materials such as stainless steel.

3. Consider Temperature and Pressure: High temperatures and pressures can affect the mechanical properties of the coupling material. Ensure that the selected material can withstand the operating conditions without compromising its structural integrity.

4. Corrosion Resistance: If the conveyed substance is corrosive, select a material that offers high corrosion resistance. Stainless steel, for instance, is known for its excellent corrosion resistance properties.

5. Abrasion Resistance: For applications involving abrasive fluids or gases, choose a material that can withstand wear and erosion. Hardened materials or those with protective coatings may be suitable.

6. Compliance with Standards: Consider whether there are specific industry standards or regulations that dictate the choice of material for certain applications. Ensure that the selected material meets these standards, especially in critical industries like food, pharmaceuticals, or petrochemicals.

7. Budget and Availability: Take into account the cost of the material and its availability. Some specialized materials may be more expensive or harder to obtain, so it’s essential to balance performance requirements with budget constraints.

8. Seek Expert Advice: If unsure about the best material choice, consult with coupling manufacturers or industry experts who can provide guidance based on the specific application requirements.

By carefully considering the conveyed fluid or gas, the operating conditions, and the material properties, it is possible to select the right half coupling material that ensures reliable and safe conveyance in the system.

Choosing the Right Universal Coupling for a Specific Application

When selecting a universal coupling for a particular application, several factors need to be considered to ensure optimal performance and reliability:

• Load and Torque Requirements: Determine the maximum load and torque that the coupling will experience during operation. Choose a universal joint that can handle these loads without exceeding its rated capacity.
• Speed: Consider the operating speed of the application as high-speed applications may require different coupling designs to ensure smooth power transmission.
• Shaft Sizes: Measure the diameters of the shafts that need to be connected. The universal coupling should have compatible shaft bores to ensure a proper fit.
• Angular Misalignment: Evaluate the angle between the shafts that the universal joint needs to accommodate. Choose a universal coupling with the appropriate angular misalignment capability to avoid excessive stress on the components.
• Environmental Conditions: Consider the environmental factors such as temperature, humidity, dust, and corrosive agents. Choose a coupling made from materials suitable for the specific conditions to ensure longevity and reliability.
• Space Limitations: Evaluate the available space for the coupling installation. Ensure that the chosen universal joint can fit within the constraints of the system.
• Serviceability: Consider the ease of maintenance and the availability of replacement parts if needed. Opt for a universal coupling that is easy to access and service when required.
• Application Type: Determine the specific application type, such as automotive, industrial machinery, marine, aerospace, etc. Different applications may require unique coupling designs and materials to meet their demands.
• Alignment Frequency: If the system experiences frequent misalignments, consider using constant velocity joints (CV joints) that maintain a constant speed ratio between input and output shafts even at different angles.

By carefully considering these factors and matching the specifications of the universal coupling to the specific application requirements, you can ensure reliable and efficient power transmission and minimize the risk of premature coupling failure.

editor by CX 2024-05-06