Diameter: 0.8m-2.0m
Length: 5.0m-18m
Layers: 4-10
Characteristic: Anti-Explosion, Flexible, High Bearing Capacity,
Warranty: 24 Months
Working Age: More Than 10 Years
Trademark: DACHENG
Transport Package: Natural Rubber & Synthetic Cord Layer
Specification: as drawings
Origin: China
HS Code: 4016950090
Introduction
Ship launching airbags are to be constructed of a cylindrical body and two conical heads (one at each end). Ship launching airbags with lots of advantages, such as easy to operate, time saving, saving investment safety, etc.
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Major Strengths of Ship Launching Airbags:
High level of safety: Equipped with a reliable safety valve, our airbags can stand the maximum pressure up to 4 times that of the operating pressure.
Good air tightness: Pressure decreases less than 10% for a period of 24 hours.
Long lifespan: It is guaranteed that our airbags can sustain their designed operating pressure for 3 years.
Specification
1. Structure
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2. Diameters: 0.8 m - 2.0 m or customized.3. Length: 6 m - 20 m or customized.
4. Loading Capacity: about 10 T/M to 40 T/M.
5. Grades:
Ordinary airbags - 3, 4 or 5 layers of synthetic-tire-cord.
High bearing capacity airbags - 6, 7 or 8 synthetic-tire-cord.
Super high bearing capacity airbags - 9, 10 or more layers of synthetic-tire-cord.
6. Accessories: Pull ring, iron airlock, tee joint, pressure gauge, ball valve, hose joint etc.
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7. Technical Data of Ship Launching Airbags
Model |
Diameter (m) |
Initial pressure (KPa) |
Rated working pressure, Pe (KPa) |
Bearing capacity (kN/m) |
Minimum burst pressure (KPa) |
QP3 |
0.8 |
25 |
130 |
114 |
390 |
1.0 |
18 |
100 |
110 |
300 |
1.2 |
15 |
85 |
112 |
260 |
1.5 |
13 |
70 |
115 |
210 |
QP4 |
0.8 |
35 |
170 |
149 |
510 |
1.0 |
25 |
130 |
143 |
390 |
1.2 |
20 |
110 |
145 |
330 |
1.5 |
16 |
90 |
148 |
270 |
1.8 |
14 |
80 |
158 |
240 |
QP5 |
0.8 |
48 |
210 |
184 |
630 |
1.0 |
35 |
170 |
186 |
510 |
1.2 |
28 |
140 |
185 |
420 |
1.5 |
20 |
110 |
181 |
330 |
1.8 |
16 |
90 |
178 |
270 |
QP6 |
1.0 |
45 |
200 |
219 |
600 |
1.2 |
32 |
165 |
217 |
490 |
1.5 |
25 |
130 |
215 |
390 |
1.8 |
20 |
110 |
218 |
330 |
Note: 1. Rated working pressure:±5%. 2. Compress deformation: ±2%. 3. Bearing capacity: one meter airbag at a deformation rate of 70%, internal pressure equivalent to the rated pressure value of Pe. |
8. Material: A ship lunching airbag is to be constructed of an outer rubber layer, one or more synthetic-tyre-cord layers, and an inner rubber layer. All material layers should be vulcanized firmly.
9. Rubber Material Test:
No. |
Test item |
Required value |
Test method |
1 |
Tensile Strength, MPa |
≥ 18 |
ISO37 |
2 |
Elongation at break, % |
≥ 400 |
ISO37 |
3 |
Hardness, shore A |
60±10 |
ISO7619-1 |
4 |
Tear Strength N/cm |
≥ 400 |
ISO34-1 |
5 |
Compression set, % (70 ºC ± 1 ºC, 22 h) |
≤ 30 |
ISO815-1 |
6 |
After thermal aging at (70 ºC, ±1 ºC, 96 h) |
Holding of pull lengthening,% |
≥ 80 |
ISO188 |
7 |
Holding of elongation at break,% |
≥ 80 |
ISO188 |
8 |
Change of hardness, hardness |
≤ 8 |
ISO7619-1 |
9 |
Static ozone aging at 40 ºC*96 h, {ozone concentration( 50±5)*10} |
No crack |
ISO1431-1 |
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10. Reinforcing Material: the warp should be (90±5) cord per 100 mm in width, and the breaking strength shall be more than 205 N per cord.
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11. Appearance: The appearance of an air bag shall be smooth, glossy and without blemish such as crack, blister, delamination pits or impurities.
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12. Dimensional Tolerances:
The length and diameter of an airbag shall be measured with the rated working pressure and be within ±3%.
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13. Ship Launching Airbags Performance:
D (M) |
(4-5 layers) |
(6-8 layers) |
 |
Initial pressure (MPa) |
Working pressure (MPa) |
Initial pressure (MPa) |
Working pressure (MPa) |
 |
 |
1.0 |
0.14 - 0.16 |
0.12 - 0.14 |
0.22 - 0.26 |
0.20 - 0.24 |
 |
1.2 |
0.12 - 0.14 |
0.10 - 0.12 |
0.20 - 0.24 |
0.17 - 0.22 |
 |
1.5 |
0.10 - 0.12 |
0.08 - 0.10 |
0.15 - 0.20 |
0.13 - 0.18 |
 |
1.8 |
0.08 - 0.10 |
0.07 - 0.09 |
0.13 - 0.16 |
0.11 - 0.14 |
 |
2.0 |
0.07 - 0.09 |
0.06 - 0.08 |
0.12 - 0.15 |
0.10 - 0.13 |
 |
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