FRP Square Tank with Pyramid Base (Primary Clarifier)
Square open-top FRP tank with a pyramid bottom, used as a primary clarifier or settling tank. Width 1 m to 4 m and height under 4 m, hand laid up and built to your drawing.
FRP Square Tank with Pyramid Base - Compact Primary Clarifier
An FRP square open-top tank over a pyramid-shaped bottom. Solids settle into the point and leave through one outlet, which makes it a compact primary clarifier or settling tank for wastewater and sewage treatment plants. In Malay it is often searched as tangki penjernih FRP.
Key Features
- Pyramid bottom: solids settle to a single bottom outlet.
- Hand laid up: built on a wooden mould to your sizes.
- Support options: bare mild steel, mild steel laminated with FRP, or pultruded FRP.
- Resin matched to the liquid: GP, ISO or vinyl ester.
- Corrosion resistant: FRP does not rust like mild steel.
Specifications
| Model | FRP-ST-PB |
|---|---|
| Material | FRP (GRP), glass-fibre reinforced polyester or vinyl ester |
| Shape | Square, open top, pyramid base |
| Dimensions | Width 1 m to 4 m; height under 4 m for road transport, 3 m suggested |
| Support | Bare mild steel, FRP-laminated mild steel or pultruded FRP |
| Typical fittings | Outlet box, bottom outlet, lifting lugs |
| Construction | Hand lay-up on a wooden mould |
| Design standard | Designed to BS 4994; engineering calculation on request |
| Corrosion barrier | Optional resin-rich inner layer with polyester veil, or hybrid build with vinyl ester inside and GP outside |
| Nozzle flanges | Standard off-the-shelf HDPE flanges; FRP flanges on request |
| Options | Cover, fiberglass ladder, railing |
| Leak test | Water-fill leak test on request |
| Warranty | 1 year standard; extended warranty on request |
Example Capacities
| Plan size | Straight wall | Volume above the pyramid |
|---|---|---|
| 1 m x 1 m | 1 m | about 1,000 L |
| 2 m x 2 m | 2 m | about 8,000 L |
| 3 m x 3 m | 2.5 m | about 22,500 L |
Volumes are approximate and for guidance only. Every tank is built to your sizes.
Applications
- Primary clarifier
- Settling tank
- Wastewater and sewage treatment plants
Resin Selection
- GP (orthophthalic polyester): for water and mild, non-aggressive liquids.
- ISO (isophthalic polyester): a premium polyester with good chemical resistance.
- Vinyl ester: for severe corrosion, including strong acids and alkalis, hydrocarbons and organic solvents.
- Hybrid: vinyl ester inside for chemical resistance, GP outside for economy.
Laminate Strength
The tank uses the same FRP laminate as the Mui Tank range: 103.0 MPa tensile strength (limit 70 min), 182.4 MPa bending strength (limit 100 min) and 0.15% water absorption (limit 1.0 max).
Installation
- Sit the tank, or its stand, on a level concrete plinth at least 250 mm (10 in) above ground.
- Lift only when empty, using the lifting lugs.
- Support every connecting pipe and valve on its own footing.
What to Tell Us for a Quote
- The chemical or liquid, its concentration and its temperature
- Tank size or drawing, and nozzle positions
- Support type and options such as cover, ladder or railing
FAQ
What is a primary clarifier? The first settling stage in a treatment plant, where heavy solids settle out before further treatment.
Why a pyramid bottom? Solids slide down the four sloping sides to one outlet for easy draw-off.
How tall can it be? Under 4 m for road transport, with 3 m suggested.
Ordering and Delivery
Lead time is typically 7 to 14 working days, subject to the production schedule. We deliver across Peninsular Malaysia, and to Sabah and Sarawak through a freight agent. Manufactured by Y.T. Fibreglass Industries Sdn Bhd, a Mui Fatt subsidiary.
Download the catalogue: FRP Chemical and Wastewater Treatment Tanks Catalogue (PDF)
Contact Mui Fatt for a quotation: Get a Quote.
