Your Professional Water Weight Bags Supplier
Shanghai DER New Material Co., Ltd is built under EU standard at its production and physical testing methods. production area 60,000 square meter, registered with 2.5 million US dollars. 3 calendars, 1 knife coating machine, 2 hot melt machine and 5 lamination machine, 25 senior engineers and 450 workers make our factory more competitive among the Coated fabric supplies.
Technical Team
Our factory has a highly professional technical team with over 15 years of experience in Water Weight Bags. Our expertise covers knife coating technology, weather resistance, flame retardancy, tensile strength, UV stability, water resistance, abrasion resistance, dimensional stability, and custom formulations.
ISO 9001 Standard
Our technical team strictly follows ISO 9001 standards and uses precision instruments to test raw materials and control processes, ensuring excellent product consistency. Our management team implements lean production methods and digital traceability systems to optimize efficiency from production to delivery.
Fast & Reliable Transportation
We cooperate with professional sea, air, and logistics companies to provide the most efficient and cost-effective transportation solutions.
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Lifeboat Test Water Bags
Lifeboat test water bags are designed with the bolster cylindrical shape, made of heavy duty PVC coating fabric, and equipped with fill/discharge fitting, handles and automatic relief valves, which is activated once the water bags achieve the designed weight. This system is widely used for the distributed proof load testing for the lifeboat, rescue boat, and other equipments that need distributed load testing.
Specification
|
Parameter |
Specification |
|
Material |
Reinforced PVC/TPU |
|
Standard Weight per Bag |
75kg / 82kg / 100kg |
|
Max Capacity (per bag) |
100–150kg (adjustable) |
|
Dimensions (approx.) |
60cm x 40cm x 20cm (varies) |
|
Valve Type |
Quick-release, threaded, or snap-lock |
|
Operating Temp. Range |
-10°C to +60°C |
|
Pressure Resistance |
Up to 1.5 bar (21 psi) |
|
Color |
Blue, Orange, or Custom |
|
Certifications |
SOLAS, IMO, MSC.1/Circ.1206, ClassNK, LR, DNV |
Models of the Water Bag
|
Capacity |
Diameter |
Length |
Weight |
|
100 kg |
440 mm |
850 mm |
6 kg |
|
250 kg |
500 mm |
1600 mm |
7 kg |
|
375 kg |
520 mm |
2100 mm |
9 kg |
|
400 kg |
520 mm |
2250 mm |
10 kg |
|
500 kg |
520 mm |
2650 mm |
12 kg |
|
600 kg |
600 mm |
2500 mm |
15 kg |
Material & Durability
Made from heavy-duty PVC or reinforced TPU for high strength and puncture resistance.
UV-resistant and waterproof to prevent leaks.
Resistant to saltwater, oils, and chemicals.
Design & Usability
Modular design – Can be stacked or arranged to distribute weight evenly.
Quick-fill & drain valves for fast setup and removal.
Handles or lifting straps for easy transport.
Color-coded (usually blue or orange) for visibility.
Safety & Compliance
Meets SOLAS Ch. III, IMO LSA Code, and MSC.1/Circ.1206/Rev.1 standards.
Non-toxic and environmentally safe (no spill risk like sandbags).
Reusable, reducing waste compared to traditional methods.
Capacity & Customization
Available in standard weights (75 kg, 82 kg, or 100 kg per bag) to simulate average passenger weight.
Custom sizes for different lifeboat capacities.
Lifeboat Load Testing System
Load test water bags system comprises complete kits used for 8 units or multiple water bags combinations enable unlimited test weight.
Adhering to the consistent top-quality design and safety principles, the workers can control the filling and discharge manifold remotely. By the air driven diaphragm pump, the inside water also can be discharged out easily. Quick connect couplings realized the easy operation. All these designs made the load testing system reduces man-powers and increases safety.
● 1 x diaphragm pump D40
● 1 x water meter D40
● 8 x PVC ball valves 3/4”
● 1 x 8 ports manifold D50-3/4”
● 1 x fire hose D50 x 20m
● 1 x steel wire pipe D50 x 3m
● 8 x steel wire pipe 3/4”
● 1 x ball valves D50
● 1 x adapter D50/D65
Composition of Lifeboat Load Water Bag Equipment: Water Bags and Remote Water Supply System
Lifeboat Water Bag Composition: Water bag body, inlet and outlet, safety exhaust valve, fixed handle.
Water bag body: It is made of anti-radiation high-strength PVC coating material. Under normal conditions, the material life can reach 10-15 years. The water bag adopts a cylindrical appearance design, and the height of the water bag will not exceed 50cm, so as to ensure that the water content is more than 95%.
Inlet and outlet: The inlet is a TYPE F type PP quick connector with a valve. During the installation process, the PVC steel wire inlet pipe can be quickly placed on the water bag; place the water outlet under the side of the water bag, in It is convenient to drain the water during the discharge.
Safety exhaust valve: To prevent the water bag gas or water pressure from breaking the water bag too much; When the water injection process, some air will enter the water bag with the liquid, when the bag pressure reaches about 15kpa, the safety exhaust valve Start the work and eliminate the gas inside the bag body. After the water bag is fully loaded, excess water can be discharged to remind the operator that the water bag is full.
Handle: Fixed lifeboat load test water bag, which will not be moved by water in the process of filling with water. It is very good to protect the role of water bag. Suggestion: The handle is not used to move the water bag. Do not move the water bag filled with water by pulling the handle.
Remote water supply system components: DN40 pneumatic diaphragm pumps, DN40 flow meter, DN50 - DN25 water distribution, and DN25 and DN50 steel pipe and so on.
Lifeboat load test water bag specifications (100kg, 250kg, 375kg, 500kg, etc. can be customized)
Operation And Use
WaWater Filling Process
1. According to the need to determine the number and type of water bags required.
2. According to the internal situation of the lifeboat or other equipment, to determine the placement of water bags program.
3. The handle on the water bag can be used to fix. If necessary, you can use a wooden board to fix the water bag to ensure its balance.
4. Connect the water bag and the water distributor with the water filling hose, pay attention to distinguish the water bag corresponding to each valve.
5. Connect the water distributor and water meter and its valve.
6. Connect the water meter quick connect and the fire hose.
7. Connect the fire hose to the water supply equipment.
8. Record the initial reading of the water meter and calculate the target reading of the water meter. Do not set to zero.
9. Begin water filling operation.
10. Control the manifold valve to ensure a balanced filling of the internal water bag.
11. Watch the water meter reading closely and close the valve as soon as the target value is reached.
12. If no water meter is used, when the water in the bag reaches the rated value, the end of the safety valve will automatically open to drain. At this time, you need to close the valve that controls the water bag in time.
Our Certificate
FAQ
We're well-known as one of the leading water weight bags manufacturers and suppliers in China. Please feel free to buy custom made water weight bags from our factory. For price consultation, contact us.
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