Home > Products > culvert balloon > rubber balloon made in China exported to Kenya nigeria used as formwork for constructing culvert sewer lines
rubber balloon made in China exported to Kenya nigeria used as formwork for constructing culvert sewer lines
- 1000 Piece / Pieces per Month
- Qingdao
- T/T
- 5 days
- rubber balloon used for making rainwater lines, industry water lines in Kenya, Nigeria
- used as formwork for making hollow concrete pipe, for constructing clevert, drainage, sewer, rubber balloon in China
- hot sales rubber balloon exported to kenya Nigeria sourth africa, iran, rubber balloon for culvert construction
- rubber balloon as construction formwork used for culvert construction, drainage construction, sewer construction
- rubber balloon made in china, rubber balloon exported to kenya, Nigeria
- diameter 600mm 16meter long rubber balloon exported to Kenya, Nigeria,sourth africa
Product Details
Brand Name: | BLESS | Place of Origin: | China | Model Number: | dia200-3000mm |
Product Description
rubber balloon made in China exported to Kenya nigeria used as formwork for constructing culvert sewer lines
PNEUMATIC TUBULAR FORM
Pneumatic tubular form is used for making concrete pre-casting formwork projects in culvert bridge construction.
Material:
Pneumatic tubular form is made from natural rubber and fabric. In general, it is formed by three layers(1+2=2layers of rubber and 1 layer fabric): inner layer is high strength synthetic polymer fabric withstanding the force from concrete and air pressure. Outer layer is vulcanized rubber. Rubber hardness is about 65Shore A to keep its excellent features, such as soft, durable, wear-resistance.
If your concrete slab is thicker, it should be manufactured in 2layers of fabric and 3layers of rubber(2+3).
Standard specification
1- diameter from 0.2m to 3m,(round)
2- total length from 1m to 28m(round)
3- other specifications are also available according to clients’ request.
Technical Parameters
Items | Index |
Thickness, mm | 3.2±0.2(1+2) 5.0±0.2(2+3) |
Hardness(Shore A) | 65±5 |
Adhesive tension of rubber and fabric,N/25mm | ≥8 |
Tensile strength, M pa | ≥12 |
Elongation at break, % | ≥350 |
300% Stretch set length, M Pa | 6 |
Stretch for deformation ratio | ≤20 %(Prevent distortion) |
Suitable temperature,°C | -10~80 |
Appearance | No cracks, no bubbles on the surface; |
Working Pressure
Diameter(mm) | Pressure(Mpa) |
150 | 0.08 |
160~190 | 0.08 |
200~220 | 0.07 |
230 | 0.06 |
240~280 | 0.05 |
300~370 | 0.045 |
380~480 | 0.04 |
500~520 | 0.035 |
550~600 | 0.03 |
620~680 | 0.025 |
700 | 0.02 |
Contact Us
- QINGDAO BLESS INDUSTRY AND TRADE CO.,LTD
- Contact nameEric
- AddressLicang Qingdao,Shandong
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