Durable High Strength 35kv to 1100 Kv Hollow Epoxy Fiberglass Tubing

Quick DetailsPlace of Origin: China (Mainland)                                           Brand Name: XINCHENGProduc

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Quick Details
Place of Origin: China (Mainland)                                           Brand Name: XINCHENG
Product name: Epoxy Fiberglass Vacuum Cast Insulating Tube
Type: Insulation Sleeving /tube                                              Usage: Insulation Protection
Technology: Vacuum Cast                                                     Material: Fiberglass, Epoxy Resin and Fiberglass
Feature: High Temperature Resistance                           Temperature: F grade (155 C ), H grade ( 180 C) , 220 C
Application: High Voltage                                                       Rated Voltage: 35kV-1100kV
Tensile Strength: >=200MPa                                                 Axial compressive strength: ≥150MPa
Flexural strength to layer: ≥120MPa                                     Dielectric loss factor (50Hz): ≤0.05
Vertical flexural strength (normal): 400MPa                         Surface voltage resistance after wetting: ≥12kv
Water Absorption: ≤1%                                                         Partial discharge: ≤5PC
Density: 1.8-1.95g/m3                                                          Diameter range: from 4mm to 1000mm
Thickness : 0.5mm-30mm or Customized Size                    Max length: 12m
Color: Green, red, white, yellow, etc                                    Services: OEM, ODM, DIe-Cutting
Certificate: ISO, SGS
Epoxy fiberglass winding tube is made of fiberglass yarn impregnated with epoxy resin etc, and then rolled in wet method, and then dried and consolidated. Its heat resistance level can be up to H level, and it also has excellent electrical and mechanical properties, low dielectrical loss, no deformation, chemical resistant etc. It can be used as main insulator on H grade dry type transformers, load tap changer, reactor, lightning protector, SF6 Inductor etc.
Our epoxy resin fiberglass tubes are produced by adopting the vacuum casting technology manufactured in a high class purifying room, which guarantees superior performance and reliable quality of products. They are widely applied in high voltage circuit breakers, isolation switches, earthing switches and other electricity equipment with the voltage level from 35kV to 1100kV. They are also widely used for kinds of pipeline system, such as waste line, petroleum chemical lines, pipeline connected to the tank or other systems. Among more than 200,000 sets in operation, no quality problem has been found, winning favorable comments from customers at home and abroad.
Main Features and Test Items
 1. Reliable electrical insulation property:
All the epoxy resin fiberglass tube at each voltage class produced by our company are subject to lightning impulse type tests according to Chinese National Standards. Routine tests like withstand voltage and partial discharge tests are performed before each epoxy fiberglass tube leaves factory so as to ensure stable and reliable electrical insulation property of products during service.
2. Reliable mechanical performance:
All the epoxy resin fiberglass tubes at each voltage class produced by our company are subject to 10000 opening and closing life tests. For each heat of epoxy resin fiberglass tube products, routine destructive tensile tests are performed for test objects, and also torsion tests and other mechanical performance tests can be carried out as necessary.
3. Reliable thermal deformation resistance:
For each heat of epoxy resin fiberglass tubes, DSC differential thermal analysis is performed to ensure reliable thermal deformation resistance of products.
4. Reliable internal soundness:
Each epoxy resin fiberglass tube is subject to routine X-ray non-destructive testing to guarantee absence of internal defects so that sound internal structure can be ensured for reliable use.
5. High external surface quality
The epoxy resin fiberglass tube produced by our company are of aesthetically pleasing internal and external surfaces, which are free from special coatings or finishes.
Epoxy resin fiber glass winding tube
Winding tubes in various specifications (diameter ranges from 4 to 1000 mm) can be produced in accordance with users' requirements, meanwhile, they can be processed according to different requirements (notch, turning, wiring etc.).
FRP pipe is Epoxy glass fiber reinforced entwined tube
1) Excellent mechanical strength,
2) High mechanical load
3) High voltage resistance and low dielectric loss.
4) Light weight
5) Adjust the winding angle to satisfied with your any mechanical strength demand
6) Thickness is from 1mm to more 7) Work temperature: B (125C)/ F(155C)/ H(180C)/ 220-250 C
7) Corrosion resistance, Resistance to chemical corrosion (SF6) .
8) High temperature resistance
9) No deformation, no layer. 
10) Water absorption minimum.
Product Application
Widely used in oil-immersed transformer, H class dry type transformer, railway locomotive transformer on-load tap-changer, reactor, lightning arrester, SF6 transformers, such as high pressure test device main insulation products.
Technical parameter:
Basic typeUnitB-21
High Load
Static loadMpa240240240150
Dynamic loadMpa16015010030
Coefficient of friction-0.03~0.120.03~0.120.03~0.120.15~0.25
Working Temp.ºC±180±180±180±120
SHORT-TIME WORK TEMPERATUREºC-180~+230-180~+230-180~+230-120~+140
Radial compressive strengthMpa550550550200
Linear thermal expansion factorUm/mºC13×10-613×10-613×10-630×10-6
Note : Instead of GGB High Strength GAR-MAX style
Technical parameter:
Densityg/ cubic centimetersmore than 1.9
Compression StrengthMpamore than110
Shearing StrengthMpamore than 25
Bending StrengthMpamore than210
Bending Strength(Circumference)Mpamore than 400
Air tightnessGas pipeMpa2.94No leak
Oil pipe58.8
Surface breakdown voltage after wettingin normal air for 1 min with gap between electrodes of 30mmKVmore than15
Parallel to laminate breakdown voltage ( in transformer oil of 90±2ºC)KVmore than 25
Perpendicular to laminate breakdown voltage (in transformer oil of 90±2ºC,5min wallthickness 4mm )KVmore than 22
Dielectric loss factor 50 Hz less than0.01
Leakage current (between gap of 500mm at 40 kv dc500mm40KVMAless than 1
Content of fiberglass%70
Water absorbtion rate%less than 0.02
 The above data is only for reference, our sleeve parameters are customized according to customer demands.

Tensile strength(ring)MPa≥900
Tensile strength(axial)MPa≥55
Compressive strength(longitudinal)Mpa≥150
Perpendicular to the bendingMPa≥120
Vertical bending modulus of elasticityMPa≥1.6X104
Shear strengthMPa≥700
Electrical Properties
Axial impact withstand voltage-7KW/mm, 5 times
Radial frequency withstand voltage-8KW/mm, 1 min
Medium wearing factor(50Hz)-7.65X10-3
Relative dielectric constant(50Hz)-5.59
Partial discharge(35KW)pC≤5
Water diffusion test-12KW, 1min
Sheet resistivityΩ≥9.5X1014
Volume resistivityΩ.m≥6.0X1012
Customer Service
We understand purchasing is the most complicated and cumbersome work. Various trade platform can not display all contents of purchasing. Only a responsible supplier who always standby can undertake this task. Large scale operation can maintain our cost advantage and maintain quality. Low labor cost and large nu mber of factories in China provide rich resources for us. We are responsible for purchasing and production, so that our customers can put together advantages to develop market. We look forwarder to establish lon g term cooperation with our client, and we provide more services to make it eaiser.
- Free technical assistant
- Quality control on every single order based on SGS AQL 2.5-4.0
- Online order tracking
- Member pricing online checking
- Ideas share
- New products alerts
Horizontal placement, storage at room temperature in dry and clean room and keep it from damp, storage period is 12 months.
Packaging & Delivery
Packaging Details : carton, or by customer's demand
Port: Tianjin, Qingdao or Shanghai
Lead Time : 7-15days
Please Contact Us
 Miss: lydia
Mob: 86-13752439076      Fax: 86-22-60863016        
 Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube



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