China Professional China Factory Produce Universal PP Compression Fittings Quick Female Couplings universal coupling

Product Description


SR.No.: Code Items SIZE Weight(G/PC) pcs/ bag pcs/ctn

 Female  thread coupling

20*1/2 23.19  50 600
MDFS002P 20*3/4 26.10  40 560
MDFS003P 20*1 32.40  40 560
MDFS004P 25*1/2 37.34  30 360
MDFS005P 25*3/4 37.65  30 360
MDFS006P 25*1 43.47  25 325
MDFS007P 32*1/2 63.90  15 240
MDFS008P 32*3/4 60.53  15 210
MDFS009P 32*1 64.38  15 210
10  MDFS571P 32*11/4″ 74.70  15 210
11  MDFS011P 40*1 94.50  10 140
12  MDFS012P 40*11/4 101.00  10 130
13  MDFS013P 40*11/2″ 107.10  10 120
14  MDFS014P 50*1″ 157.50  / 80
15  MDFS015P 50*11/4 165.60  / 80
16  MDFS016P 50*11/2″ 162.00  / 80
17  MDFS017P 50*2″ 180.00  / 80
18  MDFS018P 63*11/4 254.70  / 48
19  MDFS019P 63*11/2 259.20  / 48
20  MDFS571P 63*2 243.00  / 44
21  MDFS571P 75*2″ 448.20  / 27
22  MDFS571P 75*21/2″ 456.30  / 27
23  MDFS571P 75*3″ 506.70  / 27
24  MDFS571P 90*21/2″ 665.10  / 14
25  MDFS571P 90*3″ 702.90  / 14
26  MDFS026P 90*4″ 759.60  / 14
27  MDFS571P 110*3″ 1092.60  / 8
28  MDFS571P 110*4″ 1093.50  / 8





 Production line

Test equipment



1.What is your MOQ?
Our MOQ is usually 3000-5000 PCS per item.

2.What is your delievery time?
The time of delievery is around 20-35 days.

3.What is the shipping port?
We ship the goods via HangZhou or ZheJiang port.

4.What is your payment terms?
We accept 30% T/T in advance,70% in the period of shipment or 100% L/C.

5.What is the location of your company?
Our company is located in the HangZhou city ZHangZhoug Province,China.near to ZheJiang .
If you would like to have a visit, you are much welcome.

6.How about the samples?
We could send you the free samples ,If sent to other countries,transport fee shoule be paid by you.

7.Why choose us?
1 Genuine produces with excellent quality and competitive price.
2 Cooperating with the customers all over the world and knowing the markets very well.
3 After- Services will be highly-satisfied.Any problems and feedbacks will be answered in a short of time.

8.Our Services:
1.Any inquiries will be replied within 24 hours
2.Professional manufacturer.
3.OEM and ODM is available.
4.High quality, standard designs,reasonable&competitive price,fast lead time.
5.Faster delivery:Sample will be prepared in 2-3days.
6.Shipping:We have strong cooperation with DHL,TNT,UPS,MSK,China Shipping,etc.
7.You can also choose your own shipping forwarder.

9.How should I contact you?

You can contact us with Trade Manager or send us an email by click Contact Supplier bottom.

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universal coupling

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.

universal coupling

How do you calculate the required size and specifications for a half coupling?

Calculating the required size and specifications for a half coupling involves considering several factors to ensure a proper fit and secure connection. Here are the steps to calculate the required size and specifications:

1. Pipe Size: Determine the size of the pipe that the half coupling will connect to. Pipe sizes are typically specified in inches, and the half coupling size should match the pipe size.

2. Pipe Material: Identify the material of the pipe, such as stainless steel, PVC, carbon steel, brass, copper, etc. The half coupling material should be compatible with the pipe material to prevent corrosion and ensure a reliable connection.

3. Pressure Rating: Determine the maximum operating pressure of the system. The half coupling should have a pressure rating that meets or exceeds the system’s operating pressure to ensure safety and performance.

4. Temperature Rating: Consider the maximum and minimum operating temperatures of the system. The half coupling material and design should be suitable for the temperature range to prevent deformation or failure.

5. Alignment and Misalignment: Evaluate the alignment and potential misalignment between the pipes. Some half couplings are designed to accommodate angular, parallel, or axial misalignment, providing flexibility in installation.

6. End Connection: Determine the type of end connection required for the half coupling, such as threaded, weld-on, or flanged. The end connection should match the corresponding connection on the pipe.

7. Corrosion Resistance: Consider the environment in which the half coupling will be installed. For corrosive environments, select a half coupling material with suitable corrosion resistance.

8. Industry Standards: Ensure that the selected half coupling complies with relevant industry standards and certifications for quality and safety.

9. Manufacturer Guidelines: Follow the manufacturer’s guidelines and recommendations for selecting the appropriate half coupling size and specifications based on the application requirements.

It is essential to consult with coupling manufacturers, suppliers, or industry experts if you are unsure about the correct size and specifications for the half coupling. Proper sizing and selection will ensure a reliable and efficient connection in the piping system.

universal coupling

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.

China Professional China Factory Produce Universal PP Compression Fittings Quick Female Couplings  universal couplingChina Professional China Factory Produce Universal PP Compression Fittings Quick Female Couplings  universal coupling
editor by CX 2024-04-26