Closed flexible water tanks
With or without straps • capacities from 100 to 20,000 litres
Closed collapsible water tanks filled through dedicated connections. Choose capacity, construction with or without straps and material series. Drinking-water suitability and lifting a filled tank are confirmed from documentation for the specific construction.
Choose your tank
Configure a flexible water tank
Choose capacity and equipment. We will confirm specifications and price in your quotation.
Your configuration
Choose construction and capacity to prepare an enquiry.
Your selection is copied to the form. Complete your details and contact consent to send the enquiry.Closed collapsible water tanks
For temporary water storage in a closed construction filled through dedicated connections. Once emptied, the tank folds for storage and transport. Material, capacity and handling are selected for your application.
Construction with or without straps
Source records include strap-free tanks of 100, 300, 500, 1,000 and 1,500 litres and a separate technical construction of 10,000 litres. The description of the 1,500-litre strap-free version needs confirmation. Separate catalogue entries with an HDS strap system cover 500, 1,500 and 2,500 litres. Permitted lifting must follow the documentation for the specific model; straps alone do not establish that a full tank can be lifted.
E1100F material series
The 2025 offer lists 500, 1,000, 1,500, 2,000, 3,000, 4,000 and 5,000 litres with a side belt and straps, plus flat constructions of 10,000, 15,000 and 20,000 litres that must not be lifted when filled. Erez E1100F material, 1,100 g/m², blue. Drinking-water use requires current documentation for both the material and the finished tank.
Connections and accessories
Inlet with vent and P25/P52 connections according to the series. The E1100F offer specifies P52 from 3,000 litres. Fittings, valves and positions are selected for the model. Options include PE or PVC protective groundsheets, a transport bag or cover, a repair kit and appropriate shackles for documented strap constructions.
Photographed examples from our production
The grey tank with orange straps illustrates an external strap system and a lower connection. Straps, shackles and handling must match the documentation for the model. The photograph does not establish approval for lifting a filled tank. The second photograph shows grey tanks with upper connections, lower valves and separate handles. These handles are for moving empty tanks and do not replace a strap system.
Select your water storage configuration
Specify capacity, type of water, need for straps, ground conditions, connections and transport arrangements. Describe any requirement to lift a filled tank. Construction, dimensions, weight, documentation and price are confirmed in the quotation. Photographs come from an archived 2020 offer and illustrate different constructions, not the E1100F series. Colour, connection layout, equipment and current documentation are confirmed individually.
Frequently asked questions
What is the difference between open-top and closed tanks?
An open-top tank has an inflatable or foam rim. A closed tank is filled through connections. Construction is selected for the application and handling requirements.
Can the tank store drinking water?
Drinking-water use requires confirmation of current documentation for the material and finished tank. Selecting E1100F is an enquiry about that use, not confirmation of certification.
Can a filled tank be lifted?
Do not infer this from a photograph, handles or straps alone. Handles are for empty tanks. Lifting permission must follow the documentation for the specific construction; flat E1100F tanks of 10–20 m³ must not be lifted when filled.
How do I obtain a price and equipment confirmation?
Select construction, capacity and equipment, then continue to the form. Describe the water type, site and transport requirements. WATS confirms specifications, availability, documentation and price in an individual quotation.
Tell us about your project
Ask about Closed flexible water tanks
- Help choosing a product for your application
- Own production — dimensions and materials can be changed
- Details and terms confirmed in your quote
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