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BUMI tanks are Mui Fatt's round open top PE water tanks (tangki air bulat), from 50 to 600 gallons (227 to 2,724 litres), the most popular house roof tank in Malaysia. Each tank is rotomoulded in one piece from food-grade LLDPE (linear low-density polyethylene) by Mui Fatt Industries Sdn Bhd, SIRIM certified and registered with SPAN to MS 1225-1:2014, with an 8-year outdoor and 10-year indoor warranty. BUMI is part of our open top PE water tanks → and the PE Water Tanks in Malaysia → range.
| Model | Gallons | Litres | Top diameter (mm) | Height with cover (mm) |
|---|---|---|---|---|
| BM 25-50 → | 50 | 227 | 940 | 435 |
| BM 75 → | 75 | 341 | 810 | 1,054 |
| BM 50-80 → | 80 | 363 | 1,120 | 585 |
| BM 70-100 → | 100 | 454 | 1,235 | 694 |
| BM 100-150 → | 150 | 681 | 1,250 | 754 |
| BM 150-200 → | 200 | 908 | 1,530 | 785 |
| BM 200-250 → | 250 | 1,135 | 1,540 | 902 |
| BM 250-300 → | 300 | 1,362 | 1,545 | 1,068 |
| BM 300-350 → | 350 | 1,589 | 1,420 | 1,541 |
| BM 300-400 → | 400 | 1,816 | 1,600 | 1,173 |
| BM 400-500 → | 500 | 2,270 | 1,740 | 1,319 |
| BM 500-600 → | 600 | 2,724 | 1,810 | 1,554 |
| Model | Gallons | Litres | Top diameter (mm) | Height with cover (mm) |
|---|---|---|---|---|
| BM 150-200 A → | 200 | 908 | 1,390 | 790 |
| BM 150-200 C → | 200 | 908 | 1,225 | 970 |
| BM 150-200 S → | 200 | 908 | 1,540 | 800 |
| BM 250-300 A → | 300 | 1,362 | 1,470 | 1,244 |
| BM 300-350 A → | 350 | 1,589 | 1,545 | 1,050 |
| BM 300-400 A → | 400 | 1,816 | 1,480 | 1,434 |
Special sizes keep the same capacity in a wider and lower, or narrower and taller, shape.
Which BUMI size do I need for a house?
Most houses use the BM 250-300 (300 gallons, 1,362 L) or BM 400-500 (500 gallons). Measure the ceiling opening and the height under the roof before you choose.
What does BM 250-300 mean?
BM is the BUMI series. The first number is the effective capacity (250 gallons) and the second is the nominal capacity (300 gallons).
Why choose a round tank?
A round wall spreads the water pressure evenly, so it is the strongest shape and less likely to bulge or crack when full.
Are BUMI tanks registered with SPAN?
Yes. BUMI tanks are SIRIM certified to MS 1225-1:2014 and registered with SPAN.
Short ceiling space? See the SEGI square and rectangular tanks →.
Ringkasan: Tangki air bulat BUMI dari 50 hingga 600 gelen, diperbuat daripada LLDPE gred makanan, diperakui SIRIM (MS 1225-1:2014) dan berdaftar dengan SPAN.
Note on units: All gallons on this page are imperial (UK) gallons. 1 m3 = 1,000 litres = 220 imperial gallons.
See every PE and fiberglass tank at a glance in our free water tank selection guide →
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