An anti floating water tank anchored against uplift, for buried fire reserves on sites where the groundwater sits close to the surface.
Indicative — the quotation confirms the final figure US$3,600 Lead time 15 – 25 days · ex Dezhou, Shandong
SKU LVJ-BDF-AF
What buyers said once the tank was on site — every review left on our Alibaba store, in their own words.
The anti floating BDF tank from LVJIA is a bolted, buried storage tank pressed from bimetallic composite plate at our own plant in Dezhou, Shandong. It is the version specified where the water table is high and an empty tank would otherwise float out of its pit.
An anti floating BDF tank is a sectional tank assembled below ground from 1000 × 1000 mm pressed panels. Each panel is drawn in a single press stroke from a composite plate: a food-grade stainless layer on the face that meets the water, hot-dip galvanised steel behind it to carry the load. The panels bolt together inside the excavation, so no welding happens on site and no welded seam is ever in contact with the stored water. LVJIA builds this tank from 1 to 1,000+ m³, which means the volume follows the pit you have dug rather than a fixed catalogue size.
A fire tank is the one tank designed to go from full to empty in minutes, and empty is exactly when uplift is worst. A buried shell with nothing in it behaves like a boat: if the groundwater sits a metre below the surface, the pit can lift the tank, break the pipework and crack the slab. LVJIA ties the base ring into the concrete slab and sizes the anchorage and ballast to the measured water-table depth, which is why the enquiry form asks for it before a panel schedule is issued. The result is a reserve that can be drawn to the last cubic metre during a fire and still be exactly where it was when the pumps stop.
Three things separate this anti floating BDF tank from a coated steel tank. First, there is no coating: the corrosion-resistant surface is the stainless face of the panel itself, so there is nothing to blister, peel or repaint. Second, the panel is drawn rather than fabricated, so the water never touches a heat-affected zone where pitting normally starts. Third, every joint is closed with EPDM strip and stainless fasteners outside the water path, which means a single panel can be replaced years later without cutting the tank open. The module is reinforced on all four corners, and the wall is carried on a 16 mm section rated for a full 4.5 m of head.
| Model number | Buried water tank |
|---|---|
| Capacity | 1 – 1,000+ m³ built to order |
| Material | New stainless steel composite plate (BDF) |
| Anchorage | Anchored base ring, ballast slab to water table |
| Panel module | 1000 × 1000 mm, pressed and drawn |
| Panel thickness | 2 – 5 mm by height |
| Wall thickness | 16 mm |
| Installation | Buried, sitting type |
| Applicable | Fire protection, civil air defence engineering |
| Water temperature | 0 – 100 °C |
| Certification | ISO 9001 · CE |
| Origin | Dezhou City, Shandong Province, China |
Fire duty usually drives a long, shallow arrangement so the suctions sit close together and the draw-down is even: 6 × 3 × 2 m, 8 × 3 × 2 m, 10 × 4 × 2.5 m and 12 × 5 × 3 m are the shapes most often quoted. Deeper tanks need thicker lower courses and more ballast, so the anchorage calculation and the panel schedule are issued together.
| Tank height | Panel thickness | Typical use |
|---|---|---|
| 1.0 – 1.5 m | 2 mm | Shallow buried reserve |
| 2.0 m | 3 mm | Standard buried tank |
| 3.0 m | 4 mm | Deep reserve, high head |
| 4.0 – 4.5 m | 5 mm | Maximum depth, pump station |
Every anti floating BDF tank is filled and held at full head for 48 hours before it leaves the factory, and no joint is allowed to weep. The composite plate carries drinking-water contact report SP2630499 from the Dezhou Institute of Product Quality Standards and Metrology, and the plant holds ISO 9001 with CE marking on the product. Copies of the report and the certificate ship with the order, and you can see the full set on our certifications page. The same specification is published on our Made-in-China storefront, where LVJIA is an audited supplier.
Pricing for the anti floating BDF tank starts at US$200 per cubic metre, falling to US$180 from 10 m³ and US$150 from 50 m³, FOB Tianjin or Qingdao. The minimum order is one set. Samples ship in 3 to 5 days and batch orders in 15 to 25 days from Dezhou, Shandong, on wooden pallets. Send the measured groundwater level with the enquiry. LVJIA is an audited Made-in-China supplier with a 5.0 Alibaba store rating, 100% on-time dispatch and a 60,000 tonne annual capacity at Dezhou.
Send the pit dimensions and the volume you need and LVJIA returns an arrangement drawing and a panel schedule before you commit to anything. If you would rather talk it through first, our engineers answer specification questions directly through technical help, and the rest of the range sits on the BDF underground water tank page.
Where another material suits the site better, the stainless steel 316 water tank is the same tank in stainless steel, for sites where chlorides or a hygiene specification rule out coatings, while the welded stainless steel water tank builds it in stainless steel. Elsewhere in the BDF underground range there is the BDF drinking water tank for drinking water and the BDF irrigation water tank for irrigation and livestock.
At a glance
Every tank is built to the pit you have. The module is a 1000 × 1000 mm pressed panel, so capacity steps in whole cubic metres and the arrangement can be long and shallow or short and deep without changing the parts list.
Panel thickness by tank height — Anti-Floating BDF Underground Fire Water Tank
| Tank height | Panel thickness | Typical use |
|---|---|---|
| 1.0 – 1.5 m | 2 mm | Shallow buried reserve |
| 2.0 m | 3 mm | Standard buried tank |
| 3.0 m | 4 mm | Deep reserve, high head |
| 4.0 – 4.5 m | 5 mm | Maximum depth, pump station |
Shandong Lvjia has pressed water-tank panels in Dezhou since the plant opened, and holds ISO 9001 with import and export rights of its own.
Request a quoteThe panel is a bimetallic composite: a food-grade stainless layer bonded to hot-dip galvanised steel, then pressed and drawn in a single stroke. The stainless face carries the water; the galvanised layer carries the load.
Product dimensions
Tolerance requirements
Every tank is filled and held at full head before it leaves Dezhou, and the composite plate carries a drinking-water contact report from the Dezhou Institute of Product Quality Standards and Metrology.
Typical performance — Anti-Floating BDF Underground Fire Water Tank
| Test | Method | Result |
|---|---|---|
| Hydrostatic | 48 h at full head | No weep at any joint |
| Drinking-water contact | Report SP2630499 | Pass |
| Shock resistance | Four-corner reinforced module | Pass |
Send the pit dimensions and the volume you need and LVJIA returns an arrangement drawing with the panel schedule before you order.
Talk to an engineerHow every tank is specified, built to your drawing, inspected and documented before it leaves the line.
We’ll help you meet your specification.
Send us a drawing or a capacity and we will come back with a specification, a price and a build slot.
Get in touchTanks our customers pair with this one. Hover or tap a card for its specification.
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Hỏi về sản phẩm này
Tell us the capacity and the space you have. An engineer replies with a drawing and a firm price.
Trao đổi với kinh doanh và kỹ thuật
Straight to the engineers who press the panels. First reply usually under two hours on a working day.
Shandong Lvjia Air Conditioning Equipment Co., Ltd. · Dezhou, China
