Flexible couplings for pipes are essential components designed to connect two pipe ends securely while accommodating misalignment, vibration, and thermal expansion. Made from durable materials such as rubber, stainless steel, or composite alloys, these couplings ensure leak-proof and reliable performance in both high- and low-pressure systems. They are widely used in plumbing, HVAC, industrial, and wastewater applications. With easy installation and maintenance, flexible couplings help reduce system stress and prolong the service life of piping networks. Available in various sizes and configurations, they offer excellent adaptability for different pipe materials and diameters.
Flexible Couplings For Pipes Detail
| Product Name | Flexible Couplings For Pipes |
| Product Material | usually rubber, oil-resistant nitrile rubber and stainless steel. Sometimes metal-elastomer combinations are used for better performance. |
| Product Process | Rubber base: mixed raw materials, injection molding or compression molding. Metal base: structural parts are forged, machined, and welded. |
| Surface Treatment | Metal parts: electroplating, powder coating, passivation. Rubber parts: wear-resistant and environmentally resistant protective coating. |
| Customizable Products | Gears / Sprockets / Worms / Shafts / Rack Bars / Bevel Gears, etc. |
Product Advantages
Cost-effective, ready-to-use
Economical, one-piece design requires no additional cutting or adjustments, reducing installation costs and time.
Strong and lightweight
High strength and light weight can prevent excessive pressure on pipe connections.
Easy to install
They adapt to rough surfaces and angular movements and can be installed in minutes.
Versatile and durable
Absorbs vibration, prevents joint movement and provides long service life.
Product Information Parameters
In addition to standard sizes,GRANGIN also focuses on custom parts. It has an absolute advantage in the field of custom parts,
Meet almost all application requirements and the most stringent specifications.
| DN | OD | L (mm) | D(mm) | Bolt | |
|---|---|---|---|---|---|
| SIZE | QUANTITY | ||||
| 50 | 59 - 72 | 102 | 165 | M12*180 | 2 |
| 65 | 72 - 85 | 102 | 185 | M12*180 | 2 |
| 80 | 88 - 103 | 102 | 185 | M12*180 | 4 |
| 100 | 109 - 128 | 102 | 218 | M12*180 | 4 |
| 125 | 132 - 146 | 102 | 250 | M12*180 | 4 |
| 150 | 159 - 182 | 102 | 272 | M12*200 | 4 |
| 175 | 192 - 210 | 130 | 312 | M12*200 | 4 |
| 200 | 218 - 235 | 130 | 335 | M12*220 | 4 |
| 250 | 272 - 289 | 130 | 405 | M12*220 | 6 |
| 300 | 315 - 332 | 130 | 460 | M12*220 | 6 |
| 300 | 322 - 339 | 130 | 435 | M12*220 | 6 |
| 350 | 340 - 360 | 150 | 455 | M12*250 | 6 |
| 350 | 351 - 368 | 150 | 518 | M16*250 | 8 |
| 350 | 374 - 391 | 150 | 568 | M16*250 | 8 |
| 400 | 400 - 429 | 150 | 580 | M16*250 | 8 |
| 450 | 418 - 435 | 150 | 580 | M16*250 | 8 |
| 400 | 425 - 442 | 150 | 625 | M16*260 | 8 |
| 450 | 455 - 472 | 150 | 665 | M16*260 | 10 |
| 500 | 500 - 532 | 150 | 690 | M16*260 | 10 |
| 500 | 527 - 544 | 150 | 715 | M16*260 | 10 |
20+ years of experience as Flexible Couplings For Pipes manufacturer
Specialized in designing, producing and processing various specifications of synchronous wheels, gears, sprockets, racks, couplings and other transmission accessories
Semi-finished Parts Pictures:
Custom 6-Mode Stainless Steel Gears
Custom Finished Hole Sprockets
Customized 1.2 Inch Large Sprocket
Custom Gear Shaft
Customized Electric Cylinder Coupling Shaft
Customized Aluminum Flange
Packaging Pictures：
Our Certificate
CE
ISO45001
ISO14001
ISO9001
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How is the outer diameter range of pipes corresponding to different DN specifications determined?
The nominal diameter is a nominal size, and the outer diameter range is determined according to industry standards and actual engineering application requirements. It takes into account factors such as the difference in wall thickness of different pipes and the adaptability of the connection to ensure that the flexible pipe joint can be well connected with the pipe of the corresponding specification.
What is the impact of different outer diameter values in actual use?
The outer diameter size affects the connection adaptability of the joint with external equipment or other pipe fittings. A larger outer diameter size means a larger connection surface or coverage range, which may have differences in pressure resistance, vibration resistance and other performance, and also affects the coordination with matching flanges and other components. It is necessary to select a suitable outer diameter size joint according to the actual system pressure, connection requirements, etc.
How are the bolt specifications and quantity determined, and what impact do they have on the connection strength?
The bolt specifications and quantity are calculated and determined based on the mechanical performance requirements such as pressure and torque that the joint bears. Generally speaking, larger bolts and more quantities can provide higher connection strength, ensuring that the joint will not loosen due to factors such as pressure during operation, and ensuring the sealing and stability of the system.
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