As a leading global manufacturer of water equipment, FYL is committed to providing superior pipe connection solutions. Our Double Flange Power Delivery Joint Dismantling Joint utilizes state-of-the-art synthetic rubber technology and are designed for corrosion resistance, vibration damping, and zero-leakage sealing in demanding operating conditions.
In complex industrial pipeline networks, temperature fluctuations and pressure surges are the main causes of leaks. FYL's Double Flange Power Delivery Joint Dismantling Joint, through its unique multi-layered reinforced fully enclosed structure, completely solves the problem of traditional joints being susceptible to external environmental corrosion.
Utilizing a high-performance inner rubber layer, a middle reinforcing fiber layer, and a highly weather-resistant outer rubber layer, we ensure that the product maintains stable physical properties even when conveying acidic or alkaline media or exposed to ultraviolet radiation. This is not just a connector, but a barrier ensuring the long-term operation of the system.
【Six things you care about as a buyer】
Thing 1: Is the quality good enough?
Thing 2: Will it leak?
Thing 3: How long will it last in harsh environments?
Thing 4: Is it easy to install and maintain?
Thing 5: Is the supplier reliable?
Thing 6: Is the value for money good?
The following answers each of these six questions.
【Thing 1: Is the quality good enough?】
FYL is a leading global manufacturer of water equipment, not a small workshop.
Three-layer reinforced structure, each layer with clear technical specifications:
100% pressure testing before shipment. Every single joint is inspected before leaving the factory.
【Thing 2: Will it leak?】
Answer: No.
Three reasons why:
Reason 1: Fully enclosed one-piece molding process. No seams. No path for media to penetrate.
Reason 2: Sealing face fits tightly with the flange. When bolts are tightened, the rubber is compressed to form a complete sealing band.
Reason 3: Fully enclosed structure prevents media from entering the reinforced layer. Many joints fail not because the flange leaks, but because media slowly penetrates from the edge into the rubber layer, corrodes the skeleton, and eventually causes complete failure. FYL's fully enclosed design closes this path.
【Thing 3: How long will it last in harsh environments?】
Answer: More than 10 years.
Here are four harsh working conditions with expected service life:
Condition: Chemical plant with acid/alkaline media
Service life: 10+ years
Reason: EPDM or special chemical-resistant inner layer, non-dissolving, non-swelling; corrosion-resistant outer layer
Condition: Seaside or salt spray environment
Service life: 10+ years
Reason: Salt spray resistant outer layer; stainless steel bolts recommended for complete rust prevention
Condition: Outdoor installation with sun and rain
Service life: 10+ years
Reason: Ozone resistant and UV resistant outer layer, no cracking, no hardening
Condition: Vacuum negative pressure system
Service life: 10+ years
Reason: Metal mesh reinforced layer supports the skeleton, no collapse, no deformation, no flattening
A product that lasts 10 years means you don't need to purchase frequently, don't need to install repeatedly, and don't need to worry about sudden production stoppages due to leaks.
【Thing 4: Is it easy to install and maintain?】
Yes.
Installation in three steps:
Step 1: Clean the flange face. Remove old gasket residue and rust.
Step 2: Place the FYL joint between the two flanges. Align the bolt holes.
Step 3: Insert bolts. Tighten evenly in a cross pattern.
No special tools needed. No professional training required.
Maintenance: One thing.
Periodically check if flange bolts are loose. Nothing else.
Replacement:
Loosen bolts. Remove old joint. Insert new joint. Tighten bolts. No need to move pipes. No cutting. No welding. Replacement completed within half a day.
【Thing 5: Is the supplier reliable?】
Five reasons why FYL is a supplier you can trust:
Reason 1: Leading global manufacturer of water equipment. Brand with credibility.
Reason 2: More than 10 years of industry experience. Specialized in water conservancy machinery, not a generalist.
Reason 3: Complete manufacturing system. Full process control from raw materials to finished products.
Reason 4: Customized production supported. Non-standard sizes, special materials, special flange standards are all available.
Reason 5: Professional technical support and after-sales service. Not just selling and disappearing.
When purchasing valves and pipeline fittings, a reliable supplier matters more than the product itself. If a product breaks, you can replace it. If the supplier is irresponsible, you are on your own. FYL provides both product and service as a complete package.
【Thing 6: Is the value for money good?】
Let's do the math:
Ordinary rubber flexible joint:
Unit price: 100 | Service life: 3 years | Replacement cost within 3 years: 200 labor | Total cost over 3 years: 300 | Production loss: Not included
FYL Double Flange Power Delivery Joint:
Unit price: 300 | Service life: 10+ years | Replacement cost within 10 years: 0 | Total cost over 10 years: 300 | Production loss: 0
With ordinary joints, you have to worry every 3 years. Place orders. Wait for delivery. Arrange labor for replacement. Stop production.
With FYL joints, install once and forget for 10 years.
The math is clear.
【Nine purchasing values of FYL Double Flange Power Delivery Joint】
Value 1 / Zero Leakage
Fully enclosed one-piece molding. Sealing face fits tightly with flange. No path for media to escape.
Value 2 / 10+ Year Service Life
Three-layer structure, each layer with its own job: inner layer resists media, middle layer withstands pressure, outer layer resists environment.
Value 3 / Vacuum Capable
Metal mesh reinforced version specifically designed for negative pressure. No collapse. No deformation. No flow blockage.
Value 4 / Corrosion and Aging Resistant
Chemical plant acid/alkali, seaside salt spray, outdoor sun and rain. All validated.
Value 5 / Water Hammer Absorption
High-quality elastomer absorbs impact energy. Protects pumps and precision valves.
Value 6 / Displacement Compensation
Allows axial expansion and contraction. Compensates for lateral offset. Reduces pipeline installation precision requirements.
Value 7 / Vibration Damping and Noise Reduction
Blocks vibration transmission. Reduces structural noise. Improves pump house working environment.
Value 8 / Quick Installation Saves Time
Standard flange dimensions. Cross-pattern bolt tightening. No special tools needed.
Value 9 / Reliable Brand with After-Sales Support
Leading global manufacturer. Technical support throughout.
【Which buyers have already chosen FYL】
Water treatment industry: Pump house pipe connections at water plants and wastewater plants
Chemical industry: Acid and alkaline media pipelines in chemical plants
Power industry: Cooling water circulation systems in power plants
Building construction: Pump rooms and HVAC rooms in high-rise buildings
Metallurgy industry: Industrial pipelines in steel mills and smelters
Food industry: Water pipelines in food factories and beverage plants
【What information FYL needs for selection】
To help you get the right model, please provide the following information:
FYL will provide material recommendations, reinforcement layer selection, and flange configuration based on the above information.
Our Double Flange Power Delivery Joint Dismantling Joint utilizes a fully enclosed molding process. Its sealing face fits tightly with the flange, effectively preventing media from penetrating the reinforced layer and avoiding moisture-induced corrosion of the internal skeleton, thus significantly extending its service life.
We embed high-strength nylon cord fabric or metal mesh layers within the rubber matrix. This "skeleton" design allows the product to maintain its geometric shape even under extremely high working pressure or vacuum negative pressure, preventing bursting or flattening deformation.
Thanks to the use of high-quality elastomers, FYL products effectively absorb water hammer impacts, mechanical vibrations, and displacements caused by thermal expansion and contraction. This is crucial for protecting pump units and precision valves in pump houses.
Double Flange Power Delivery Joint Dismantling Joint, specially formulated, has excellent ozone resistance, aging resistance, and corrosion resistance, maintaining a service life of more than 10 years even in chemical plants or seaside salt spray environments.





|
Nominal Diameter |
Pipe Diameter |
SIZE |
Flange Joint Size |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
L |
△L |
0.6MPa |
1.0MPa |
||||||||
|
DN |
DN |
D |
D1 |
n-Th |
b |
D |
D1 |
n-Th |
b |
||
|
65 |
76 |
400 |
40 |
160 |
130 |
4-M12 |
16 |
185 |
145 |
4-M16 |
20 |
|
80 |
89 |
190 |
150 |
4-M16 |
18 |
200 |
160 |
8-M16 |
22 |
||
|
100 |
114 |
210 |
170 |
220 |
180 |
24 |
|||||
|
125 |
140 |
240 |
200 |
8-M16 |
20 |
250 |
210 |
26 |
|||
|
150 |
168 |
265 |
225 |
285 |
240 |
8-M20 |
|||||
|
200 |
219 |
320 |
280 |
22 |
340 |
295 |
28 |
||||
|
250 |
273 |
375 |
335 |
12-M16 |
24 |
395 |
350 |
12-M20 |
|||
|
300 |
325 |
420 |
50 |
440 |
395 |
12-M20 |
24 |
445 |
400 |
12-M20 |
28 |
|
350 |
377 |
490 |
445 |
26 |
505 |
460 |
16-M20 |
30 |
|||
|
400 |
426 |
540 |
495 |
16-M20 |
28 |
565 |
515 |
16-M24 |
32 |
||
|
450 |
480 |
595 |
550 |
615 |
565 |
20-M24 |
32 |
||||
|
500 |
530 |
645 |
600 |
20-M20 |
30 |
670 |
620 |
34 |
|||
|
600 |
630 |
440 |
755 |
705 |
20-M24 |
780 |
725 |
20-M27 |
36 |
||
|
700 |
720 |
860 |
810 |
24-M24 |
32 |
895 |
840 |
24-M27 |
40 |
||
|
800 |
820 |
600 |
60 |
975 |
920 |
24-M27 |
34 |
1015 |
950 |
24-M30 |
44 |
|
900 |
920 |
1075 |
1020 |
24-M27 |
36 |
1115 |
1050 |
28-M30 |
46 |
||
|
1000 |
1020 |
1175 |
1120 |
28-M27 |
1230 |
1160 |
28-M33 |
50 |
|||
|
1200 |
1220 |
620 |
1405 |
1340 |
32-M30 |
40 |
1455 |
1380 |
32-M36 |
56 |
|
|
1400 |
1420 |
1630 |
1560 |
36-M33 |
44 |
1675 |
1590 |
36-M39 |
62 |
||
|
1600 |
1620 |
630 |
1830 |
1760 |
40-M33 |
48 |
1915 |
1820 |
40-M4 |
68 |
|
|
1800 |
1820 |
2045 |
1970 |
44-M36 |
50 |
2115 |
2020 |
44-M45 |
70 |
||
|
2000 |
2020 |
650 |
2265 |
2180 |
48-M39 |
54 |
2325 |
2230 |
48-M45 |
74 |
|
|
2200 |
2220 |
2475 |
2390 |
52-M39 |
60 |
2550 |
2440 |
52-M52 |
80 |
||
|
2400 |
2420 |
2685 |
2600 |
56-M39 |
62 |
2760 |
2650 |
56-M52 |
82 |
||
|
2600 |
2620 |
750 |
80 |
2905 |
2810 |
60-M45 |
64 |
2960 |
2850 |
60-M52 |
88 |
|
2800 |
2820 |
3115 |
3020 |
64-M45 |
68 |
3480 |
3070 |
64-M52 |
94 |
||
|
3000 |
3020 |
3315 |
3220 |
68-M45 |
70 |
3405 |
3290 |
68-M56 |
100 |
||
Q: Do you support custom sizes for your Fully Enclosed Rubber Joints?
A: Yes. We can provide 1:1 custom solutions based on your pipe pressure, media type, and flange standard (such as ANSI or DIN).
Q: What is the typical production lead time?
A: We have ample stock of standard sizes. Customized large-diameter products are typically produced within 7-15 working days.
Q: How do you guarantee product quality?
A: FYL has a fully equipped quality testing laboratory. Every batch of Fully Enclosed Rubber Joints undergoes tensile strength testing and pressure burst testing, and a quality inspection report is provided with the shipment.