Product Description

Universal Coupling / Pipe Coupling/ Gibault Coupling
Range of Size:  1 1/2” – 32” (DN40-800mm)
Pressure : PN10/PN16 

1. Description: 

Universal Couplings offer an easy and economical way of joining pipe- whether the pipe is of the same nominal size and/or type or different at each couplings end .
Universal Couplings will handle most of waterworks couplings needs and are capable of connecting most classes of water pipe.

2. Application : 

*  used for pipe connection .
*  suit for Ductile Iron Pipe, Cast Iron Pipe, Steel, Asbestos Cement Pipe, PE, PVC, HDPE Pipe and etc.
*  Working pressure:  PN10 / PN16
*   Suit for Water, Neutral Liquids and Sewage

3. Features :

*   wide range of tolerance
*   corrosion resistance
*   allow angular deflection of +/- 4°

4. Material Sheet :

4.  List of Sizes :

S/N	Size	O.D Range	Sleeve Length	Bolts
	mm	mm	mm	mm
1	DN40	48-60	98	M12x170
2	DN50	59-73	98	M12x170
3	DN65	72-85	98	M12x170
4	DN80	88-103	98	M12x180
5	DN100	96-116	98	M12x180
6		108-120	98	M12x190
7		109-128	98	M12x180
8	DN125	132-146	98	M12x180
9		138-153	98	M12x180
10	DN150	158-172	105	M12x200
11		159-182	110	M12x200
12	DN175	192-210	130	M12x210
13	DN200	198-225	130	M12x210
14		218-235	130	M12x220
15	DN250	242-262	130	M12x220
16		250-267	130	M12x220
17		250-274	130	M12x220
18		272-289	130	M12x220
19	DN300	315-332	130	M12x220
20		322-339	130	M12x220
21	DN350	340-360	130	M12x220
22		351-378	130	M14x230
23		374-391	130	M14x230
24	DN400	390-410	130	M14x220
25		398-430	140	M14x270
26		417-437	130	M14x240
27		425-442	130	M14x240
28	DN450	450-463	130	M14x270
29		455-475	130	M14x270
30		476-500	130	M14x270
31	DN500	500-508	130	M16x270
32		500-533	140	M14x280
33		526-546	130	M14x270
34	DN600	600-630	130	M14x270
35		608-636	130	M14x270
36		630-650	130	M14x270
37	DN700	710-739	155	M16x280
38	DN800	816-842	180	M16x330

4. Project Cases :
 

5. Joint Series :

6. Company Profile :
 

HangZhou CHINAMFG Pipeline Co., Ltd is the professional chinese supplier and exporter of repair clamps and coupling for water lines with working pressure PN10/16 . The range of our products including Universal Coupling, Universal Flange Adaptor, Restraint Coupling, Restraint Flange Adaptor, Step Coupling, Repair Clamps and etc . 
Our product conform the international standard ISO2531, BS EN545 EN598 .
We export to many countries including USA, UK, Spain, Australia, Russia, Indonesia, Singapore, Malaysia and etc. 

7. Certificates : 

8. Contact us :
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What Role Does a Flange Coupling Play in Reducing Downtime and Maintenance Costs?

A flange coupling plays a crucial role in reducing downtime and maintenance costs in mechanical systems. Here are the key ways it contributes to these benefits:

• Misalignment Compensation: Flange couplings can accommodate a certain degree of misalignment between the shafts, both angular and parallel. By allowing for misalignment, the coupling reduces the chances of mechanical failures caused by rigid connections. This flexibility minimizes stress and wear on the connected equipment and helps prevent unexpected downtime due to alignment issues.
• Vibration Damping: Flange couplings with flexible elements, such as elastomeric inserts, help dampen vibrations in the system. By absorbing and dissipating vibration forces, the coupling protects the equipment from excessive vibrations that could lead to component failure and unplanned downtime.
• Shock Load Absorption: In some applications, sudden shock loads or torque spikes can occur. Flange couplings with flexible elements have a certain shock-absorbing capacity, which prevents damage to the machinery and reduces the likelihood of unplanned downtime caused by sudden impact loads.
• Easy Maintenance and Inspection: Flange couplings are designed for easy installation, maintenance, and inspection. They usually consist of fewer parts and are accessible for visual inspections and lubrication. This ease of maintenance allows for quick identification of any wear or misalignment issues, enabling timely corrective actions to avoid costly breakdowns.
• Long Service Life: Flange couplings are typically constructed from durable materials that can withstand demanding operating conditions. When properly selected and maintained, they offer a long service life with minimal wear and replacement requirements. This longevity contributes to reduced maintenance costs and fewer replacement expenses over the equipment’s lifetime.
• Cost-Effective Design: Flange couplings are available in a variety of materials and configurations, offering cost-effective solutions for power transmission needs. Their relatively simple design and easy installation further contribute to cost savings during the initial setup and routine maintenance.

Overall, a well-chosen and properly maintained flange coupling enhances the reliability and efficiency of mechanical systems, reducing downtime, and lowering maintenance costs in industrial applications.

Maintenance-Free Flange Couplings

Flange couplings can be designed to be maintenance-free, meaning they require minimal or no regular maintenance throughout their operational life. The key features and options that contribute to maintenance-free flange couplings include:

• Sealed and Lubricated: Some flange couplings are sealed and pre-lubricated with high-performance grease during the manufacturing process. This ensures that the coupling remains properly lubricated over an extended period, eliminating the need for routine lubrication.
• Self-Lubricating Materials: Certain flange couplings are constructed from self-lubricating materials, such as polymers or composites, that provide a low-friction interface between the mating surfaces. This reduces wear and eliminates the need for additional lubrication.
• Maintenance-Free Bearings: Flange couplings with integrated maintenance-free bearings further enhance the overall maintenance-free operation. These bearings are designed to withstand the required loads and provide long-lasting performance without the need for regular lubrication.
• Corrosion-Resistant Materials: Flange couplings made from corrosion-resistant materials, such as stainless steel or coated alloys, can resist environmental factors that might lead to corrosion and premature wear, resulting in extended maintenance intervals.
• Robust Design: A well-engineered flange coupling with a robust design can withstand harsh conditions, shock loads, and other stresses, reducing the likelihood of component failure and the need for maintenance.

It is essential to select a flange coupling that is specifically labeled as “maintenance-free” or “self-lubricating” by the manufacturer to ensure that it meets your maintenance objectives. However, it’s important to note that even maintenance-free flange couplings may still require periodic inspection to check for wear, alignment issues, or other potential problems.

What are the Maintenance Requirements for Flange Couplings?

Flange couplings require regular maintenance to ensure optimal performance and longevity. Proper maintenance can help prevent unexpected failures and downtime in the machinery or equipment. Here are the key maintenance requirements for flange couplings:

1. Inspection: Regularly inspect the flange coupling for signs of wear, damage, or misalignment. Check for cracks, corrosion, or any deformations in the flange and bolt holes. Ensure that the coupling is properly aligned with the shafts.2. Lubrication: Lubricate the flange coupling as per the manufacturer’s recommendations. Proper lubrication helps reduce friction and wear between the mating surfaces of the flanges, bolts, and nuts. Use the right type of lubricant that is compatible with the coupling material.3. Bolt Torque Check: Check the bolt torque regularly to ensure that the flange coupling is securely fastened. Loose bolts can lead to misalignment and coupling failure. Follow the recommended torque values provided by the manufacturer.4. Alignment: Maintain proper shaft alignment to prevent excessive forces on the flange coupling. Misalignment can cause uneven load distribution and accelerated wear on the coupling components.5. Environmental Protection: If the flange coupling is exposed to harsh or corrosive environments, take necessary measures to protect it. Consider using protective coatings or seals to prevent corrosion and damage.6. Regular Servicing: Schedule regular servicing of the machinery or equipment, including the flange coupling. This allows for a thorough inspection and timely replacement of worn-out or damaged components.7. Replacement of Worn Parts: When signs of wear or damage are detected during inspections, replace the worn or damaged parts promptly. Delaying the replacement can lead to further damage and compromise the performance of the coupling.8. Follow Manufacturer’s Guidelines: Always follow the maintenance guidelines provided by the flange coupling manufacturer. They may have specific recommendations based on the design and material of the coupling. Proper maintenance and regular checks can extend the life of the flange coupling and contribute to the overall reliability and efficiency of the connected machinery. It is essential to create a maintenance schedule and adhere to it diligently to ensure the smooth operation of the flange coupling and the entire mechanical system.

editor by CX 2024-02-01