Fiberglass tube
For different sizes, current stock or more information, please contact us at: +359888888094; elektrabg@abv.bg
Description
Fiberglass tube is a very good insulator of high-voltage units and aggregates. Fiberglass tubes are made of non-alkali glass fiber and epoxy resins and their varieties. The glass roving tube is made by winding glass fibers on a mandrel bonded with epoxy resins. Fiberglass reinforced plastic tubes are produced by the method of “wet filament winding” with different internal diameter, wall thickness as desired and length up to 2300 mm. FRP tubes can be produced in round, square or other cross-section and can also be reinforced to obtain high bending strength. Fiberglass tubes are radio permeable, do not heat up from high frequencies and have small dielectric losses.
Areas of application
- suitable for parts and products for the energy industry
- low oil circuit breakers
- high voltage transformers
- throttles
- step voltage regulators
- spraying device for chemically active fluids
- details and piping for ventilation installations
- pipe segments for powerful engines and generators
- grounding devices
- different insulators
- electrical equipment details
- antenna – feeder devices for HF and VHF
- supporting structures for trolley power supply
- rollers for conveyor belts
- rail and road barriers
- masts
- oars
- boat ladders
- others
Stock
The following inner diameter mandrels are available:
3mm; 4mm; 5mm; 6mm; 7mm; 8mm; 9mm; 10mm; 11mm; 12mm; 13mm; 14mm; 15mm; 16mm; 17mm; 18mm; 19mm; 20mm; 21mm; 22mm; 23mm; 24mm; 25mm; 26mm; 28mm; 30mm; 32mm; 34mm; 36mm; 38mm; 40mm; 45mm; 50mm; 57mm; 58mm; 60mm; 70mm; 72.5mm; 75mm; 80mm; 95mm; 119mm; 155mm; 168mm; 195mm; 230mm.
Minimum wall thickness: 1mm
Maximum pipe length: 2300mm
Pipes can be custom made to fit the exact dimensions needed! This includes internal diameters other than those specified.
The pipes can be of round, square or other cross-section, and specially reinforced to obtain high bending strength.
Specification
| Properties | Unit | Value | Standard |
| Specific weight | g/cm3 | 1.8÷1.9 | DIN 53479 |
| Glass content | % | 60÷85 | DIN 53395 |
| Elasticity | kN/mm2 | 40÷45 | DIN 53457 |
| Tensile strength | kN/mm2 | 1÷1.1 | DIN 53454 |
| Specific volume resistance | Ω | 1014 ÷1015 | DIN 53482 |
| Dielectric strength | kV/mm | 10 ÷15 | DIN 53481 |
| Insulation temperature class | B, F, H | VDE 0304 | |
| Water absorption | % | <0.3% |
