Water cans
ECO and PROFI water cans in PE-HD, 2 to 22 litres – handy for motorhome, camping, boat and expedition.
In the shopApplication
Drinking water tanks and plastic water containers
Drinking water tanks in PE-HD and PP – DVGW W 270 / KTW compliant, for mobile water supply, emergency reserves, industry and agriculture.
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At a glance
Plastic drinking water tanks are containers for the hygienically safe storage and transport of drinking water. Because the water is intended for human consumption, strict requirements apply to the materials used: they must not impart taste, odour or substances to the water and must be microbiologically safe. The reference standards in Germany are the DVGW guideline W 270 and the KTW assessment basis, and in Switzerland food law. PE-HD is the usual choice – UV-stabilised, cold-tough and food-contact compliant; PP is used at higher temperatures and for weldable special constructions. Which container is suitable depends on volume, placement, temperature window and required records – conformity is proven product- and application-specifically.
Product worlds
Suitable products & versions
Storage containers and space-saving tanks
PE-HD storage containers with scale and drain tap from 5 to 60 litres, space-saving tanks with spigot from 60 to 500 litres.
In the shop
Accessories and connections
Drain tap, vent valve, level indicator, IBC adapter or flange connection.
In the shopCustom manufacturing and welded construction
Made-to-measure PP/PE tanks and special dimensions from our own production.
See the processWhy Semadeni for Drinking water tanks and plastic water containers
Hygienically compliant
PE-HD and PP types can meet DVGW W 270 and the KTW requirements – proof is provided product- and application-specifically, not blanket.
Outdoor placement possible
UV-stabilised PE-HD is suitable for outdoor placement and stays flexible at low temperatures; in severe frost, insulation or trace heating is advisable.
Material by temperature
PE-HD covers the usual range up to around 60 °C; PP is the better choice for higher temperatures and weldable special constructions.
Wide volume range
Standard 10 to 1,000 litres, up to 10,000 litres on request – with flange connection, drain tap and level indicator.
Without BPA and plasticisers
PE-HD and PP contain no bisphenol A and no plasticisers – suitable for permanent food and drinking-water contact.
Procurement from a single source
Stock items and accessories from over 8,000 stock articles, complemented by custom manufacturing from our own Swiss production in Ostermundigen.
Evidence & compliance
Audited processes, documented conformity
Semadeni AG is certified to ISO 9001, ISO 14001, EN ISO 13485, ISO 22000 and ISO/TS 22002-4 and rated EcoVadis Gold (84/100). Data sheets and declarations of conformity are supplied on request, per product and application rather than as a blanket document.
For your supplier file
Typical set-up
Emergency water reserve for a municipal aid organisation
A typical scenario: for a decentralised emergency water reserve, the choice falls on UV-stabilised PE-HD storage tanks with drain tap and level indicator, because they remain durably resistant outdoors and are easy to clean. We define volume, placement and required conformity records together; for disinfection, the relevant DVGW data sheets apply.
- UV-stabilised PE-HD storage tanks
- Drain tap
- Level indicator
In detail
Plastic drinking water tanks: hygienic and standard-compliant
For the safe storage and transport of drinking water, containers must meet strict hygiene requirements. Semadeni supplies drinking water containers in PE-HD and PP that can comply with the German DVGW guideline W 270 and Swiss food law – proof is provided product- and application-specifically.
Areas of use
- Mobile water supply: motorhomes, camping, boats, expeditions
- Civil protection & emergency reserves: storage tanks for municipalities and aid organisations
- Industry and food production: process water, cooling water make-up, pure water
- Agriculture: field irrigation, livestock water
Materials and properties
PE-HD (high-density polyethylene)
- UV-stabilised for outdoor placement
- Usual temperature range up to around 60 °C, cold-tough
- Food-contact compliant (EU 10/2011, product-specific)
- Volumes: 10 to 10,000 litres
PP (polypropylene)
- Higher temperature resistance (reference up to ~80 °C)
- Suitable for hot-water reserves
- Readily weldable and adaptable afterwards
Standards reference
Suitability is proven product- and application-specifically via the following requirements:
| Standard / basis | Application |
|---|---|
| DVGW W 270 | Microbiological safety (DE) |
| KTW assessment basis (BWGL) | Plastics in contact with drinking water (DE) |
| EU Regulation 10/2011 | Food contact (EU, product-specific) |
| Swiss food law | Food and drinking-water contact (CH) |
Accessories and assembly
On request, Semadeni supplies drinking water tanks with:
- Drain tap (PP or PVDF)
- Vent valve and lid
- Dipstick / level indicator
- IBC adapter or flange connection
For large volumes (>1,000 litres) or special dimensions, we are glad to prepare an individual quote.
Frequently asked questions about Drinking water tanks and plastic water containers
What is DVGW W 270 and why does it matter?
DVGW W 270 is the German guideline on the microbiological safety of materials in contact with drinking water. It complements the chemical-hygienic requirements of the KTW assessment basis and is, in Germany, a prerequisite for using containers in the drinking-water sector.
Which material is better for drinking water tanks – PE-HD or PP?
PE-HD is the usual choice: UV-stable, cold-tough, food-contact compliant and economical, suitable up to around 60 °C. PP is recommended for higher temperatures (e.g. hot-water reserves) and is readily weldable for made-to-measure special constructions.
Can I place a drinking water tank outdoors?
Yes – UV-stabilised PE-HD is suitable for outdoor placement and stays flexible at low temperatures. Mind frost protection: in severe frost we recommend insulation or trace heating, and the tank should not freeze brim-full.
Which volumes does Semadeni offer for drinking water tanks?
Standard range 10 to 1,000 litres. For larger volumes up to 10,000 litres or special dimensions we manufacture on request – including flange connections, drain tap and level indicator.
How do I clean a plastic drinking water tank?
Rinse new tanks with clear water before first filling. For ongoing disinfection, the relevant DVGW data sheets give reference points (e.g. limited chlorination). Do not use aggressive cleaners – they can impair food suitability.
Related industries & applications
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Industry & manufacturing
Plastic solutions for industry, mechanical engineering and trade: spill pallets, containers, cut-to-size semi-finished products and special constructions in PP, PE, PVC-U and other technical thermoplastics – custom manufacturing to drawing from batch size one, from Swiss production in Ostermundigen.
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Facility management, cleaning & hygiene
Plastic products for building operation, cleaning and caretaking: cleaning and hygiene articles, spray bottles and dispensers, waste and disposal containers as well as covering foils and barrier systems in durable materials such as PP and PE – from stock, with custom manufacturing and Swiss advice.
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All applications
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Welded construction & custom manufacturing
Hot-gas plastic welding for leak-tight tanks, trays and special constructions. Semadeni welds PP, PE, PVC-U and PVDF – also for chemical plants and spill trays.
Looking for a drinking water tank for your application?
Tell us the volume, placement, temperature window and required records – we recommend material, tank shape and accessories and assess custom manufacturing. Personal advice from Ostermundigen and Vienna.
