Fabric Round Bellow Expansion Joint

Product Description

Fabric Round Bellow Expansion Joint
This circular non-metallic compensator is a flexible component consisting of a composite non-metal material,two pipes(or flanges) connected to adjacent pipeline and insulation materials.It is mainly used to compensate for the displacement caused by temperature,mechanical vibration,and foundation sinking in pipeline and equipment systems that trasport micro-pressure dust gas,smoke,gas , and other gases.


The round non-metallic compensator is a flexible component consisting of a composite non-metal mateiral,two pipes (or flanges) connected to adjacent pipeline and insulation materials.It is mainly used to compensate for the displacement caused by temperature, mechanical vibration, and foundation sinking in pipelines and equipment systems that transport micro-pressure dust gas, smoke, gas, and other gases.Pressure range:≤0.05Mpa;Temperature range: low temperature type ≤200°C, high temperature type ≤ 800°C; Diameter range: 150~7000MM. 

NO	ITEMS	MATERIALS	NO	ITEMS	MATERIALS
1	Long connection tube	Carbon steel	7	Filler	Carbon steel
2	Ring plate	Carbon steel	8	Steel wire	SS304
3&4	Screw bolt/Nut	Carbon steel	9	Inner sleeve	SS304/Carbon steel
5	Gasket	Carbon steel	10	Press plate	Carbon steel
6	Astragal	Rubber composite	11	Short connection tube	Carbon steel

Technique Parameter
Low Temperature Round Fabric Expansion Joint
 Design Pressure P=0.049Mpa Design Temperature T=200ºC

Normal Diameter	Axial   Compensation		Effective   Area	Welding Tube   Outer Size	Flange Outer Size	Total Length	Total Width
mm	Axial	Lateral	cm²	mm	mm	mm	mm
500	105	16	4776	530	650	520	920
550	105	16	5150	560	680	520	950
600	105	16	6079	630	750	520	1020
700	105	16	7386	720	840	520	1110
800	105	16	9654	820	940	520	1210
900	105	16	10381	920	1080	520	1310
1000	115	15	12861	1020	1180	550	1420

There're some part of the parameters above for referance,the low temperature expansion joint diameter available from DN150 to DN7000MM
.
 High Temperature Round Fabric Expansion Joint
 Design Pressure P=0.049Mpa Design Temperature T=800ºC

Normal Diameter	Axial    Compensation		Effective   Area	Welding Tube       Outer Size	Flange Outer Size	Total Length	Total Width
mm	Axial	Lateral	cm²	mm	mm	mm	mm
500	105	16	7388	530	650	520	1140
550	105	16	8167	560	680	520	1170
600	105	16	9326	630	750	520	1240
700	105	16	10930	720	840	520	1330
800	105	16	12861	820	940	520	1430
900	105	16	14949	920	1080	520	1530
1000	115	15	17427	1020	1180	550	1640

*  There're some part of the parameters above for referance,the low temperature expansion joint diameter available from DN300 to DN8000MM.

Structure Features
1.Compensation for thermal expansion, can compensate for the multi-dimensional direction,much better
than the one-dimensional only compensation of metal expansion joints;
2. The system error is inevitable in the process of pipe connections, fiber expansion energy can eliminate installation error better;
3. Fiber fabrics,heat insulation cotton has a sound absorption, isolating vibration transmission function itself,it can reduce noise and vibration effectively of boilers, fans and other systems;
4. The main material is the fabric,inability to transfer, fiber expansion joint simplify the design to avoid the use of large bearings,save a lot of materials and labor;
5. The materials of fluoride, silicone materials with good high temperature and corrosion resistance;
6. Good sealing performance,perfect production equipment system, fiber expansion joint is almost no leakage.
 
Structure of Fabric Layers
The number of layers or plies is dependent upon the design conditions and we usually limit non-metallic expansion joints to five or more layers.
1^st ------ 0.15mm stainless steel wire mesh (outer layer)
2^nd ------1.2mm silicone fabric
3^rd ------0.18mm thickness PTFE cloth
4^th------0.9mm thickness glass fiber
5^th------10.0mm thickness needle felted carpet(inner layer)
6^th------Anumina-silicate ceramic fiber between inner sleeve and fabric belt (when it is high temperature)
 
Fabric Round Expansion Joint Application
• Thermal power plants: (1) Steam turbine (2) Boilers (3) Dedusting;
• Cement plant;
• Steel mills, furnaces, incinerators;
• Nuclear power plants;
• Air delivery system;
• Glass and mineral wool industry;
• Petrochemical enterprises;
• Air and gas cleaning plant;
• Blower;
• Aluminum and Carbon Factory.

Factory Corner

FAQ
Q. Are you a trading company or a manufacturer?
A: We are a manufacturer as you can see our workshop as above.

Q. What is your payment term?
A:Normally T/T 30% in advance, balance to be paid before delivery.

Q: What is your main market?
A:North America,Greenland,South America,Africa,Southeast Assia, Former Soviet Republics ,East Assia,and Europe.
Q: Can I place sample order to your factory?
A: Yes, Samples can be provided.

Q:What kind of trade terms can you do?
A:EX-WORKS,FOB,CFR,CIF,etc.

Q: How long is your delivery time?
A: Generally it is 5-7 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is accordijng to quantity.