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The Flexible PVC Onion Folding Water Bladder is specially designed for use in extreme environments. Constructed with high-strength food grade PVC material and featuring a conical structure, this water bladder is ideal for storing drinking water, domestic water, and non-corrosive liquids.
The unique conical design of the water bladder not only enhances its compressive strength but also makes it suitable for handling rough terrain. It is a versatile solution that can be used in various scenarios including military training, flood control and emergency rescue, field rescue, and emergency water supply.
What sets this water bladder apart is its ability to quickly expand and fold without the need for complex tools. When empty, it can reduce its volume by up to 80%. It supports on-demand customization, with capacities ranging from 50 liters to 50,000 liters, making it suitable for continuous 24/7 use throughout the year.
Cone shaped structure enhances compressive strength
The bottom of the cone disperses pressure, avoiding scratches from
sharp stones and tree branches, and is suitable for dragging in
complex terrains such as mountains and mud.
Multi layer PVC coating+explosion-proof reinforcement design, with
a tear resistance strength of up to 8000N/m², capable of
withstanding severe handling impacts.
Food grade PVC material, safe water storage
Through SGS certification, it meets the GB 4806.7-2016 food safety
standard and has no risk of precipitation in long-term storage of
drinking water.
Strong weather resistance (-30 ℃ to 70 ℃), anti UV aging, and
stable use in both cold and hot weather.
Rapid deployment, saving space
Unfold in just 5 minutes, with a thickness of less than 15cm after
folding, suitable for various transportation vehicles such as
trucks, helicopters, and assault boats.
Standard anti slip handle and towing strap, capable of being
carried by a single person, supporting installation on irregular
terrain such as slopes and shallow waters.
Large capacity customization, flexible adaptation to different
scenarios
The basic model covers a capacity of 500L/1000L/2000L and supports
customized ultra large specifications (50 ton level) to meet the
needs of military marching and centralized water supply in disaster
areas.
Optional compartment can be used to achieve multi liquid
classification storage (such as separate zones for drinking water
and disinfectant).
24/7 durable design
The interface adopts industrial grade ABS valves, with a leakage
prevention accuracy of 99.9%, and supports rapid water
injection/drainage by high-pressure water pumps.
Reserved sewage outlet at the bottom, which can be cleaned
regularly and extend its service life to more than 10 years.
Troop training/field training
The lightweight design of only 20kg per 1000L makes it ideal for
single soldier carrying. Its conical base provides stability and
resistance to tipping.
Emergency response to flood disasters
Rapidly deploy temporary water storage stations to facilitate safe
storage of muddy water post sedimentation and purification.
Earthquake/fire rescue
The collapsible bag can be maneuvered into narrow rescue passages,
granting immediate access to clean water sources.
Outdoor engineering work
Deliver a reliable water supply for remote construction sites,
enduring repeated use in dusty and gravelly environments.
The Onion Tank product comes with comprehensive Product Technical Support and Services to assist customers with any issues or inquiries they may have. Our dedicated team of experts is available to provide guidance, troubleshooting, and solutions to ensure that your Onion Tank operates smoothly and efficiently.