Products
Double Flange Limited Expansion Joint
The Double Flange Limited Expansion Joint from FYL is designed for high-pressure and high-temperature piping systems where vibration, thermal expansion, and axial displacement are concerns. As a reliable China Manufacturer, Supplier, and Factory, FYL ensures every Double Flange Limited Expansion Joint meets strict quality standards, supports OEM customization, and improves system stability and safety.
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Product Description
At FYL, we focus on piping solutions that balance flexibility and safety. The Double Flange Limited Expansion Joint is engineered to absorb thermal expansion, reduce vibration, and limit axial displacement in pipelines. Our factory offers custom designs and OEM services to meet specific project requirements, ensuring enhanced longevity and operational efficiency for any piping system.
Structure and Working Principle
Main Structure
- Double-end flange connection
- Metal or rubber corrugated compensator
- Limiting bolts or tie rods
- Sealing system
- Corrosion protection layer
Working Principle
During operation, pipelines experience thermal expansion, contraction, and mechanical vibration. The corrugated structure absorbs axial, lateral, and angular movements, while the limiting bolts control maximum displacement. This dual mechanism prevents pipeline damage and ensures operational safety.
Technical Advantages
- Dual Function: Combines displacement compensation and safety limiting in one unit, ideal for critical piping systems.
- System Stability: Reduces vibration and shock, protecting pumps, valves, and connected equipment.
- Easy Installation: Standard flange design for compatibility with multiple piping systems.
- Extended Service Life: Optimized limiting structure minimizes fatigue and potential damage.
- OEM and Customization: Can be designed according to pressure, temperature, medium, and displacement requirements.
Materials and Durability
The Double Flange Limited Expansion Joint uses high-strength metal or temperature-resistant rubber, combined with corrosion-resistant coating. It maintains stable performance and long service life in chemical, food, municipal, power, and petroleum industries.
Application Areas
This product is widely used in:
- Water conservancy and sewage treatment plants
- Chemical and petrochemical piping systems
- Food and beverage industrial pipelines
- Urban water supply and construction pipelines
- Power and heat supply systems
- Oil and gas industry pipelines
Market Performance
FYL's Double Flange Limited Expansion Joint has been exported to Europe, the Americas, the Middle East, and Southeast Asia. Customers report stable performance under high-pressure, high-temperature, and vibration conditions, easy installation, and extended pipeline and equipment lifespan.
Customer Cases
1. Middle East Petrochemical Project
A large petrochemical plant replaced old pipeline connections with FYL Double Flange Limited Expansion Joints, solving long-term thermal expansion issues and reducing maintenance frequency.
2. European Municipal Sewage Plant
In a European city sewage treatment project, our product was used in high-pressure pipelines. Custom limiting design reduced vibration and noise effectively, ensuring system stability.
3. Asian Food Processing Plant
An Asian food processing company adopted FYL Double Flange Limited Expansion Joints for high-temperature and high-hygiene pipelines, maintaining stable connections under strict operational conditions.
Our Services
- Pre-sale Support: 7×24 online consultation, quick quotation, technical guidance, and customized design solutions according to customer needs.
- Production Follow-up: Regular updates on production progress to ensure on-time delivery.
- After-sale Support: Installation guidance and problem-solving for smooth operation.
Why Choose FYL
Choosing FYL means getting more than a Double Flange Limited Expansion Joint. Our professional design and manufacturing team provides tailored solutions to ensure perfect compatibility with your piping system. We are committed to delivering reliable products and comprehensive support for projects around the world.
Installation Date Table
|
Nominal Diameter |
Pipe Diameter |
SIZE |
Stretching amount |
Flange Joint Size |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
L |
L1 |
0.6MPa |
1.0MPa |
|||||||
|
DN |
DN |
D |
D1 |
n-d。 |
D |
D1 |
n-d。 |
|||
|
65 |
76 |
340 |
105 |
50 |
160 |
130 |
4-φ14 |
185 |
145 |
4-φ18 |
|
80 |
89 |
190 |
150 |
4-φ18 |
200 |
160 |
8-φ18 |
|||
|
100 |
108 |
210 |
170 |
220 |
180 |
|||||
|
114 |
||||||||||
|
125 |
133 |
240 |
200 |
8-φ18 |
250 |
210 |
||||
|
140 |
||||||||||
|
150 |
159 |
265 |
225 |
285 |
240 |
8-φ22 |
||||
|
168 |
||||||||||
|
200 |
219 |
320 |
280 |
340 |
295 |
|||||
|
250 |
273 |
375 |
335 |
12-φ18 |
395 |
350 |
12-φ22 |
|||
|
300 |
325 |
370 |
130 |
65 |
440 |
395 |
12-φ22 |
445 |
400 |
|
|
350 |
377 |
490 |
445 |
505 |
460 |
16-φ22 |
||||
|
400 |
426 |
540 |
495 |
16-φ22 |
565 |
515 |
16-φ26 |
|||
|
450 |
480 |
595 |
550 |
615 |
565 |
20-φ26 |
||||
|
500 |
530 |
645 |
600 |
20-φ22 |
670 |
620 |
||||
|
600 |
630 |
755 |
705 |
20-φ26 |
780 |
725 |
20-φ30 |
|||
|
700 |
720 |
860 |
810 |
24-φ26 |
895 |
840 |
24-φ30 |
|||
|
800 |
820 |
600 |
220 |
130 |
975 |
920 |
24-φ30 |
1015 |
950 |
24-φ33 |
|
900 |
920 |
1075 |
1020 |
1115 |
1015 |
28-φ33 |
||||
|
1000 |
1020 |
1175 |
1120 |
28-φ30 |
1230 |
1160 |
28-φ36 |
|||
|
1200 |
1220 |
1405 |
1340 |
32-φ33 |
1455 |
1380 |
32-φ40 |
|||
|
1400 |
1420 |
640 |
1630 |
1560 |
36-φ36 |
1675 |
1590 |
36-φ42 |
||
|
1500 |
1520 |
1730 |
1660 |
- |
- |
- |
||||
|
1600 |
1620 |
1830 |
1760 |
40-φ36 |
1915 |
1820 |
40-φ48 |
|||
|
1800 |
1820 |
2045 |
1970 |
44-φ40 |
2115 |
2020 |
44-φ48 |
|||
|
2000 |
2020 |
2265 |
2180 |
48-φ42 |
2325 |
2230 |
48-φ48 |
|||
|
2200 |
2220 |
2475 |
2390 |
52-φ42 |
2550 |
2440 |
52-φ56 |
|||
|
2400 |
2420 |
2685 |
2600 |
56-φ42 |
2760 |
2650 |
56-φ56 |
|||
|
2600 |
2620 |
710 |
240 |
150 |
2905 |
2810 |
60-φ48 |
2960 |
2850 |
60-φ56 |
|
2800 |
2820 |
3115 |
3020 |
64-φ48 |
3180 |
3070 |
64-φ56 |
|||
|
3000 |
3020 |
3315 |
3220 |
68-φ48 |
3405 |
3290 |
68-φ60 |
|||
|
3200 |
3220 |
3525 |
3430 |
72-φ48 |
|
|
|
|||
|
3400 |
3420 |
3735 |
3640 |
76-φ48 |
|
|
|
|||
|
3600 |
3620 |
3970 |
3860 |
80-φ56 |
|
|
||||
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