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Polyethylene Water Tanks (PE Tanks)
Publish Date: September 30, 2026
Mui Fatt Marketing Sdn Bhd is a Water Tank Supplier in Malaysia offering polyethylene (PE) water storage tanks that are SIRIM QAS International certified and registered with SPAN, manufactured from 100% virgin food-grade, UV-stabilized Linear Low-Density Polyethylene (LLDPE) using seamless one-piece rotational moulding. The tanks are available from 30 to 4,400 gallons nominal (approximately 136 to 20,000 litres) across the CT Series (PE-CT) for circular closed-top tanks, the BUMI Series (BM models) for circular/round open-top tanks, and the SEGI Series (SG models) for square/rectangular open-top tanks with rounded corners, for residential, commercial, industrial and rainwater-harvesting applications, with an 8-year outdoor and 10-year indoor warranty for the applicable PE Tank range.
About Mui Fatt Marketing Sdn Bhd
Mui Fatt Marketing Sdn Bhd is a Malaysia-based supplier of water storage and related industrial products, serving residential, commercial and industrial applications. The company's technical product information is supported by its technical engineering team and manufacturing relationships.
Technical information reviewed by Danny Ng Shin Lai, Director & Lead Composite Technical Specialist at Mui Fatt Marketing Sdn Bhd. Danny studied Materials Science and Engineering at the University of California, Berkeley, graduating with the Class of 2012. He supports technical design, composite fabrication standards, engineering requirements and technical compliance for the company's product range. View Danny Ng Shin Lai on LinkedIn.
Mui Fatt PE water storage tanks are designed for cold-water storage and general water-holding applications. The range includes different configurations to suit circular, open-top, closed-top and space-constrained installation requirements.
PE Water Tank Configurations
Mui Fatt's polyethylene water storage tank range includes the CT Series for circular closed-top tanks (PE-CT models), the BUMI Series for circular/round open-top tanks (BM models), and the SEGI Series for square/rectangular open-top tanks with rounded corners (SG models).
| Series | Configuration | Typical Application or Installation Consideration |
|---|---|---|
| CT | Circular / round closed-top polyethylene tank | Enclosed-top water storage applications |
| BUMI | Circular / round open-top polyethylene tank | PE water storage applications using a circular tank form |
| SEGI | Square / rectangular open-top polyethylene tank with rounded corners | Suitable for installations where rectangular geometry or available space is a consideration |
PE Water Storage Tank Malaysia: Capacity and Specifications
| Specification | Details |
|---|---|
| Tank material | 100% virgin food-grade, UV-stabilized Linear Low-Density Polyethylene (LLDPE) |
| Manufacturing process | Seamless one-piece rotational moulding |
| Nominal capacity range | 30 to 4,400 gallons nominal (approximately 136 to 20,000 litres) |
| Configurations | CT circular closed-top, BUMI circular open-top and SEGI square open-top |
| UV protection | UV-stabilized |
| Potable water registration | Registered with SPAN for potable drinking water storage |
| Certification | SIRIM QAS International certified |
| Benchmark standards | MS 1225: Part 1: 2007 for raw material; MS 1225: Part 2: 2006, Amd. 1: 2011 for tanks |
Capacity by PE Water Tank Series
| Series | Configuration | Capacity |
|---|---|---|
| CT | Circular closed-top | 500–4,400 gallons nominal (400–4,000 gallons effective), from PE-CT-400/500 to PE-CT-4000/4400 |
| BUMI | Circular / round open-top | 50–600 gallons nominal (approximately 225–2,700 litres) |
| SEGI | Square / rectangular open-top with rounded corners | 30–400 gallons nominal (approximately 136–1,800 litres) |
PE Water Tank Product Series
The PE water storage tank range is organized into three product series: CT for circular closed-top tanks, BUMI for circular/round open-top tanks, and SEGI for square/rectangular open-top tanks with rounded corners.
CT Circular Closed-Top PE Water Tanks
CT represents the circular closed-top configuration within the Mui Fatt PE water tank range. The catalogue includes circular closed-top models across a range of nominal capacities.
CT Model Specifications
| Model | Effective Capacity (Gallons) | Nominal Capacity (Gallons) | Dimensions (mm) |
|---|---|---|---|
| PE-CT-400/500 | 400 | 500 | D 1400 × H 1500 × H1 1321 |
| PE-CT-600/700 | 600 | 700 | D 1400 × H 2160 × H1 1982 |
| PE-CT-800/900 | 800 | 900 | D 1600 × H 2080 × H1 1650 |
| PE-CT-900/1000 | 900 | 1000 | D 2300 × H 1100 × H1 970 |
| PE-CT-1000/1200 | 1000 | 1200 | D 1755 × H 2180 × H1 1760 |
| PE-CT-1300/1500 | 1300 | 1500 | D 1755 × H 2820 × H1 2390 |
| PE-CT-1500/1800 | 1500 | 1800 | D 2300 × H 2100 × H1 1550 |
| PE-CT-2000/2200 | 2000 | 2200 | D 2300 × H 2660 × H1 2130 |
| PE-CT-3000/3400 | 3000 | 3400 | D 3000 × H 2330 × H1 1900 |
| PE-CT-3000/3500 | 3000 | 3500 | D 2300 × H 3620 × H1 3160 |
| PE-CT-4000/4400 | 4000 | 4400 | D 3000 × H 2850 × H1 2720 |
Dimensions are shown in millimetres. D = diameter; H = tank height; H1 = height to the specified tank level. Catalogue dimensions are rounded to the nearest 10 mm.
BUMI Circular Open-Top PE Water Tanks
BUMI represents the circular/round open-top configuration within the Mui Fatt PE water tank range. The BUMI Series covers nominal capacities from 50 gallons (approximately 225 litres) to 600 gallons (approximately 2,700 litres), with different models available for varying storage requirements and installation dimensions.
BUMI Model Specifications
| Model | Effective Capacity (Gallons) | Nominal Capacity (Gallons) | Top (D1) (mm) | Base (D2) (mm) | H1 (mm) | H2 (mm) |
|---|---|---|---|---|---|---|
| BM 25/50 | 25 | 50 | 940 | 820 | 350 | 435 |
| BM 75 | – | 75 | 810 | 570 | 940 | 1054 |
| BM 50/80 | 50 | 80 | 1120 | 890 | 460 | 585 |
| BM 70/100 | 70 | 100 | 1235 | 1030 | 540 | 694 |
| BM 100/150 | 100 | 150 | 1250 | 1040 | 620 | 754 |
| BM 150/200 | 150 | 200 | 1530 | 1280 | 620 | 785 |
| BM 200/250 | 200 | 250 | 1540 | 1300 | 760 | 902 |
| BM 250/300 | 250 | 300 | 1545 | 1240 | 960 | 1068 |
| BM 300/350 | 300 | 350 | 1420 | 1180 | 1295 | 1541 |
| BM 300/400 | 300 | 400 | 1600 | 1320 | 1070 | 1173 |
| BM 400/500 | 400 | 500 | 1740 | 1420 | 1145 | 1319 |
| BM 500/600 | 500 | 600 | 1810 | 1462 | 1320 | 1554 |
Dimensions are shown in millimetres. D1 = top dimension; D2 = base dimension; H1 = height to top of tank; H2 = height to top of cover. Catalogue dimensions are rounded to the nearest 10 mm.
View BUMI PE Water Tank Series
SEGI Square Open-Top PE Water Tanks
SEGI represents the square/rectangular open-top configuration within the Mui Fatt PE water tank range. The SEGI Series covers nominal capacities from 30 gallons (approximately 136 litres) to 400 gallons (approximately 1,800 litres), with rounded corners for installations where rectangular geometry or available space is a consideration.
SEGI Model Specifications
| Model | Effective Capacity (Gallons) | Nominal Capacity (Gallons) | Top (D1) (mm) | Base (D2) (mm) | H1 (mm) | H2 (mm) |
|---|---|---|---|---|---|---|
| SG 30 | – | 30 | 705 × 500 | 527 × 322 | 370 | 413 |
| SG 50 | 25 | 50 | 960 × 960 | 775 × 775 | 310 | 360 |
| SG 50/80 | 50 | 80 | 1200 × 1200 | 1020 × 1020 | 350 | 499 |
| SG 70/100 | 70 | 100 | 1265 × 1265 | 1050 × 1050 | 460 | 560 |
| SG 100/150 | 100 | 150 | 1320 × 1320 | 1080 × 1080 | 550 | 640 |
| SG 150/200 | 150 | 200 | 1500 × 1500 | 1200 × 1200 | 580 | 770 |
| SG 200/250 | 200 | 250 | 1470 × 1470 | 1200 × 1200 | 770 | 915 |
| SG 250/300 | 250 | 300 | 1450 × 1450 | 1190 × 1190 | 930 | 1035 |
| SG 300/400 | 300 | 400 | 1550 × 1550 | 1140 × 1140 | 1190 | 1390 |
Dimensions are shown in millimetres. D1 = top dimension; D2 = base dimension; H1 = height to top of tank; H2 = height to top of cover. Catalogue dimensions are rounded to the nearest 10 mm.
View SEGI PE Water Tank Series
Polyethylene Tank Manufacturer in Malaysia
Mui Fatt Industries Sdn Bhd manufactures the PE water storage tank range from 100% virgin food-grade, UV-stabilized Linear Low-Density Polyethylene (LLDPE) using seamless one-piece rotational moulding.
The PE tank range includes closed-top, open-top, circular and rectangular configurations designed for different residential, commercial and industrial water storage requirements.
The rotational moulding process forms the tank as a one-piece polyethylene structure. The PE Tank catalogue identifies polyethylene material properties including density, tensile strength, elongation, flexural modulus, impact strength and hardness based on the manufacturer's stated test methods.
PE Material Properties
Material test results are supplied by a certified virgin food-grade LLDPE resin manufacturer.
| Material Property | Stated Value | Test Method |
|---|---|---|
| Density | 938 kg/m³ | ISO 1872/1-1986 |
| Tensile strength | 16 MPa | ISO/R527-1966: Type 2 Speed D |
| Elongation | >200% | ISO/R527-1966: Type 2 Speed D |
| Flexural modulus | 650 MPa | ISO 178-1975 |
| Impact strength | 20 kJ/m² | ISO 179-1982: Condition 2C |
| Hardness | Shore D 62 | ISO 868-1985 |
| Softening point | 117°C | ISO 306 |
| Thermal conductivity | 0.48 W/m°C | ASTM C117 |
| Melting point | 125°C | ASTM D2117 |
| Linear expansion | 10 × 10−4/°C | ASTM D696 |
Standards, Certifications and Potable Water Registration
Mui Fatt PE water storage tanks are manufactured to the applicable MS 1225 requirements and are supported by SIRIM QAS certification and SPAN registration for potable drinking water storage.
The PE water tanks are manufactured by Mui Fatt Industries Sdn Bhd, which holds the applicable SIRIM QAS International certification for the PE tank range and has products registered with SPAN. Mui Fatt Marketing Sdn Bhd handles marketing and distribution.
- Registered with SPAN for potable water storage.
- Standards: MS 1225 Part 1 and MS 1225 Part 2.
- SIRIM QAS International certified.
Copies of certificates are available on request.
Official Standards and Certification References
- SIRIM QAS International — Product Certification Scheme
- Suruhanjaya Perkhidmatan Air Negara (SPAN)
- Standards Malaysia MySOL — MS 1225: Part 2:2006
Applications of PE Water Storage Tanks
Mui Fatt polyethylene water storage tanks are suitable for a range of water storage applications, including:
- Residential roof storage for domestic water supply.
- Rainwater harvesting pre-filtration and water storage systems.
- Commercial cold-water domestic supply.
- Industrial water holding.
Choosing a PE Water Tank Configuration
Not sure which PE tank to choose? Here's how to match the right configuration to your storage needs and available space.
| Requirement | Series to Consider |
|---|---|
| Enclosed-top circular water storage | CT |
| Open-top circular / round water storage | BUMI |
| Square / rectangular open-top water storage | SEGI |
| Space-constrained indoor or ceiling-height installation | SEGI |
PE vs Stainless Steel vs FRP Water Tanks
The following table provides a general comparison of PE, stainless steel and FRP water tanks based on common material characteristics and typical applications.
| Factor | PE | Stainless Steel | FRP |
|---|---|---|---|
| Corrosion | Does not rust; resistant to many common water-storage environments. | Does not rust like carbon steel; corrosion resistance depends on the stainless steel grade and environment. | Corrosion-resistant and suitable for many water and chemical-storage environments. |
| Weight & Handling | Lightweight and generally easy to handle compared with metal tanks. | Heavier than PE and generally requires more handling equipment for larger tanks. | Generally lighter than equivalent metal tanks; handling requirements depend on tank size and construction. |
| Cost | Generally economical for many water-storage applications. | Generally higher initial cost, depending on grade, thickness and fabrication. | Cost varies with tank size, construction and specification. |
| Typical Use | Residential, commercial and general cold-water storage. | Applications requiring a metal tank and specific hygiene, durability or installation requirements. | Water storage, larger tanks and applications where corrosion resistance and structural requirements are important. |
For more information about fiberglass water tanks, see our Fiberglass Mui Tank range.
PE Water Tank Installation and Handling
- Prepare a level support platform. The tank must sit on a smooth, flat, rigid and continuous concrete base or solid platform that fully supports 100% of the tank base. Do not install the tank with point loading or with the tank spanning open floor joists.
- Support pipe connections. Connected pipework must be independently bracketed so that pipe weight does not exert strain on the tank fittings.
- Do not lift the tank while full. The catalogue specifies that tanks should not be lifted while full.
- Check large-tank accessories. For tanks of 3,000 gallons and above, the catalogue specifies a level indicator and internal and external ladder.
- Allow for installation space. Dimensions shown in the catalogue are identified as the space required for installation purposes.
PE Water Tank Cleaning and Maintenance
For routine maintenance, Mui Fatt recommends sediment flushing and internal cleaning every 12 months. Clean the tank using clean water or a mild detergent with a soft sponge or cloth. Do not use wire brushes or abrasive cleaning chemicals, which may damage the tank surface.
PE Water Tank Warranty
The PE Tank catalogue specifies an 8-year outdoor warranty and 10-year indoor warranty for the applicable PE Tank range. Warranty conditions should be confirmed with Mui Fatt for the specific tank configuration and project.
Frequently Asked Questions About PE Water Storage Tanks
What is a PE water tank?
A PE water tank is a water storage tank made from polyethylene (PE). Mui Fatt PE water tanks use 100% virgin food-grade, UV-stabilized LLDPE (linear low-density polyethylene) and are available in different configurations and capacities for residential, commercial and other water storage applications.
How are Mui Fatt PE water tanks manufactured?
Mui Fatt PE water tanks are manufactured using rotational moulding, a process that forms the tank as a seamless, one-piece structure.
What capacities are available for PE water tanks?
Mui Fatt PE water tanks are available in nominal capacities from 30 to 4,400 gallons (approximately 136 to 20,000 litres). The smallest model is SG 30, while the largest is PE-CT-4000/4400.
Are Mui Fatt PE water tanks SIRIM certified?
Yes. Mui Fatt PE water storage tanks are SIRIM QAS International certified. The applicable standards include MS 1225: Part 1: 2007 for raw material and MS 1225: Part 2: 2006, Amd. 1: 2011 for tanks.
What is the difference between Closed Top and Open Top PE water tanks?
Closed Top tanks have a fixed enclosed top with a lid or cover, helping reduce exposure to dust, leaves and other debris. They can be suitable where greater protection of the stored water and limited access to the tank interior are preferred, including outdoor installations. Open Top tanks provide easier access to the tank interior for inspection and cleaning, making them useful where regular cleaning access is important. The choice depends on the installation environment, required access and the level of protection needed from external debris.
What is a BUMI tank?
BUMI is the circular or round open-top configuration in the Mui Fatt PE water tank range. The BUMI Series includes nominal capacities from 50 to 600 gallons, with different models and dimensions available for different storage requirements. It is typically used where an open-top, circular tank configuration is suitable and where access to the tank interior for inspection or cleaning is useful.
What is a SEGI PE water tank?
SEGI is a rectangular or square PE water tank configuration with rounded corners. It can be considered where the available installation area or ceiling height makes a rectangular configuration more practical.
What are PE water tanks used for?
Mui Fatt PE water tanks are used for residential roof storage, rainwater harvesting pre-filtration, commercial cold-water domestic supply and industrial water holding.
Is LLDPE safe for drinking water storage?
Mui Fatt's PE water tank range uses 100% virgin food-grade, UV-stabilized LLDPE and is SPAN registered for potable drinking water storage.
What is rotational moulding?
Rotational moulding is a manufacturing process used to produce the PE tank as a seamless, one-piece structure. Polyethylene material is placed inside a mould, which is heated and rotated so the material spreads across the inside surface of the mould and forms the tank wall. After cooling, the finished tank is removed from the mould. This process allows the tank body to be formed without seams or joints in the main tank structure.
How often should a PE water tank be cleaned?
Mui Fatt recommends sediment flushing and internal cleaning every 12 months. Clean the tank using clean water or a mild detergent with a soft sponge or cloth, and do not use wire brushes or abrasive cleaning chemicals.
How long do Mui Fatt PE water tanks last?
According to Mui Fatt's current technical information, PE water tanks typically have an expected service life of 15 to 20+ years under normal conditions when properly supported. This expected service life is separate from the manufacturer's 8-year outdoor and 10-year indoor warranties for the applicable PE Tank range.
What size PE water tank do I need?
Tank selection depends on the required storage volume, available installation space, tank configuration and project requirements. Mui Fatt's current product information specifies nominal capacities from 30 to 4,400 gallons (approximately 136 to 20,000 litres). The smallest model is SG 30, while the largest is PE-CT-4000/4400. For project-specific sizing, confirm the required capacity and configuration with Mui Fatt.
What is the price of a Mui Fatt PE water tank?
Pricing depends on the order volume, delivery destination and site fitting configurations. Contact Mui Fatt Marketing Sdn Bhd for a current quotation.
Can Mui Fatt PE tanks be installed underground?
No. Mui Fatt PE tanks are not recommended for underground installation. For underground water storage, consider Mui Fatt FRP tanks.
Request a PE Water Tank Quotation
For PE water tank capacity, configuration and project requirements, contact Mui Fatt Marketing Sdn Bhd for product and quotation information.
Publish Date: September 30, 2026
Mui Fatt Marketing Sdn Bhd
Lot 11793, Jalan Pengkalan Nelayan,
Telok Gong, Kampung Telok Gong,
42000 Port Klang, Selangor Darul Ehsan, Malaysia
Phone: +603 3134 3888
WhatsApp: +60 12 625 7219
Email: sales@muifatt.com.my
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