Potable Water Tanks

Potable water tanks are the most economical and the simplest storage way for the potable drinking water in desert, industrial, commercial, and residential areas. DOOWIN drinking water storage tanks are constructed from the top grade fabric material, which is certificated comply with NSF standard. Collapsible potable water storage tanks are low profile and can be customized to meet the space requirement. These potable pillow tanks can be folded easily for storage and shipment.

The drinking water tanks are extremely versatile and can be unrolled and used on any area of flat ground that has been cleared of debris, they require no special tools for installation, and are easily emptied and packed for storage when not in use.

potable water tank bladder
potable drinking water tank

Potable Water Tanks Structure

Please refer below general drawing for the small, middle and large potable water bladders.

water tank bladder structure
  • Inlet Fittings:  The standard filling fitting is 2”, 3” and 4” high quality PP flange with cam-lock with one safety cap (refer below picture). The other material filling port and camlock are available upon request. We can do aluminum or stainless steel flange and cam-lock, with stainless steel or brass ball valves.
  • Outlet Fittings:  The standard filling fitting is 2”, 3” and 4” high quality PP flange with cam-lock with one safety cap (refer below picture). The other material filling port and camlock are available upon request. We can do aluminum or stainless steel flange and cam-lock, with stainless steel or brass ball valves.
  • Optional: Ground sheet can protect your pillow tanks. It will be supplied upon request.
pillow tank accessories

Fill/Discharge Valve (2″ or 3″)

Drain Valve(2″ or 3″)

Air Bleed

Potable Water Tanks Specifications

DOOWIN potable pillow  storage tanks are from 200L to 800,000L. The below specification is a common size. We also make other size and capacity drinking water pillow tanks upon request.

potable water tank specifications

Advantages and Features

The biggest advantages of potable water storage tanks comply with NSF/ANSI 61, KTW, ACS potable water standards, no taste or odor.

  • Fabric made in Germany
  • NSF approved fabric material
  • Top notch UV resistance
  • Excellent abrasion properties
  • Light weight, High strength
  • Easy to storage and shipment
  • Easy to setup and operate
  • Various size and customized size
  • Customized size available
  • Various filling/discharge fittings
  • Easy to step up and operate
drinking water
HF welding technology

Innovative HF Welding Technology

DOOWIN potable pillow tanks use HF welding technology. The HF welding seams have better tensile strength than the hot-air welding seams. It has more stable performance, not easy to separate.

hot air welding technology

Traditional Hot-Air Welding Technology

We abandon the traditional hot-air welding technology. The hot-air welding seams are not persistent. The seam is easy to seperate. Some inferior water storage bladders prefer this welding.

Potable Water Tanks Material

Drinking water is our most vital commodity. We have to ensure the quality of the drinking water tanks cannot be affected by contact with other material.

DOOWIN use the top grade fabric for the potable water storage tanks made in Germany. These fabric material get certificates with the American NSF/ANSI 61, KTW, ACS or FDA standards. So it ensures that our portable water tanks do not pose any risk of contamination to drinking water.

NSF certificate logo

Potable Water Tanks Applications

We can make the potable storage pillow tanks for below application and more. In one word, if you want to store drinking water, choose DOOWIN potable water bladder tanks.

  • Longtime water storage and supply
  • Marine boat water storage
  • Emergency drinking water storage
  • Temporary water storage
  • Water supply for the arid region
  • Military drinking water storage
  • Rainwater storage
  • Agricultural irrigation water storage
  • Bulk water storage

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