Bianco Vertical Pressure Tank, 4 Bar Pre-Charge, 40-450 Litres
Domestic water pressure tank for cold sanitary water circuits, pressurized systems, and storage systems
- Space-saving vertical footprint: Fits tight plant rooms as well as sheds, maximising floor area in compact pump stations.
- Energy-saving operation: Reduces pump short-cycling for lower power use as well as longer pump life.
- UV-resistant epoxy coating: Durable, sun-hardy finish for long service life in harsh outdoor conditions.
- Food-grade certified: Potable-water safe with neutral taste and odour for household supply.
- Wide capacity range: Choose the right size for homes, lifestyle blocks, or light commercial application.
Meet the Bianco Vertical Pressure tank 4 bar family built for dependable pressure. This product covers various applications from everyday homes to irrigation and light commercial duty. Moreover, each model arrives pre-charged for fast commissioning and integrates smoothly into new and retrofit setups. Select the model that best matches your peak demand and duty cycle, and experience stable flow throughout your entire water system.
Not sure what size you need? Tell us about your home and pump, and we will match the right pressure tank.
Energy-saving water pump pressure tank for quiet, reliable flow
A Bianco pressure tank vertically stores a reserve of pressurised water (drawdown) so taps and appliances can run without the pump kicking in every time. By handling small, frequent demands, the pump starts less often but runs in longer, efficient cycles, cutting start events by 40–80%. That means lower power use, less heat and wear on the motor and pressure switch, quieter operation, and steadier pressure.
Multi-purpose applications: Works with any pump
Use this domestic water pressure tank wherever you need steady pressure. It works with jet, multistage, submersible, centrifugal, and VSD booster pumps. Ideal for booster systems in homes. Buffers borehole setups for smoother deep-well supply. Helps sprinklers start cleanly and keeps irrigation lines stable. In HVAC ( Heating, Ventilation, and Air Conditioning ), it can act as a small expansion vessel (installer specified). Manages thermal expansion in hot-water circuits.
Choose the right capacity: Bianco tank sizes 40–450 L
The Bianco vertical pressure tank, available in 4 bar, comes in 40, 60, 80, 100, 160, 200, 300, and 450 L models, allowing you to match capacity to demand and pump flow rate. Larger tanks store more pressurised water, delivering a longer drawdown and fewer pump starts; smaller tanks store less, so drawdown is shorter and cycling is more frequent. To size your tank, pair your pump’s flow rate with your target run time.
Looking for something smaller? Check out our Bianco Vertical Pressure Tank, 4 Bar Pre-Charge, 3–24 Litres, or explore the Bianco Horizontal Pressure Tank, 4 Bar Pre-Charge, 24–60 Litres for compact horizontal installation.
AS/NZS 4020 certified rural tank water pressure system: safe for drinking water
All wetted components—diaphragm, internal lining/coating, fittings, and seals—are AS/NZS 4020 certified for contact with drinking water. That means they have been independently tested to confirm they don’t leach harmful metals or chemicals, don’t encourage microbial growth, and won’t taint your supply with off-tastes, odours, or discolouration. In practice, this vertical pressure tank for the booster set remains “neutral” in your system: it stores pressure without altering water quality.
Bianco pump tank NZ: Quality hardware & warranty
Engineered for durability, this pressure booster tank for the house features a 304 stainless-steel water connection for corrosion resistance, clean potable water contact, and durable threads that won’t seize or flake. A serviceable air valve with a sealing cap guards against slow air loss, keeping dust and moisture out and helping to maintain the correct pre-charge for consistent performance. Additionally, the vessel is backed by a 5-year tank replacement guarantee under regular use.
Ready to size your rainwater pump pressure tank? Call Aqua Works at 0800 278 288.
Additional information
| Nominal volume | BIA BPT-40, BIA BPT-60, BIA BPT-80, BIA BPT-100, BIA BPT-160, BIA BPT-200, BIA BPT-300, BIA BPT-450 |
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Specifications
Specifications for Bianco vertical pressure tank 4 bar
| Models | Nominal volume | Nominal Draw-off | Continuous max. Temp. | Continuous max. pressure | Port size | Diameter (mm) | Height (mm) |
| BIA BPT-40 | 40L | 12L | 90°C | 10 Bar | 1″ BSP | 430 | 765 |
| BIA
BPT-60 |
60L | 18L | 90°C | 10 Bar | 1″ BSP | 390 | 592 |
| BIA
BPT-80 |
80L | 29L | 90°C | 10 Bar | 1″ BSP | 390 | 770 |
| BIA
BPT-100 |
100L | 36L | 90°C | 10 Bar | 1″ BSP | 430 | 765 |
| BIA
BPT-160 |
160L | 50L | 90°C | 10 Bar | 1 ¼ ” BSP | 550 | 925 |
| BIA
BPT-200 |
200L | 72L | 90°C | 10 Bar | 1 ¼ ” BSP | 550 | 1060 |
| BIA
BPT-300 |
300L | 108L | 90°C | 10 Bar | 1 ¼ ” BSP | 550 | 1457 |
| BIA
BPT-450 |
450L | 144L | 90°C | 10 Bar | 1 ¼ ” BSP | 650 | 1410 |
For tight installs, take a look at the Bianco 3–24 L 4 bar pre-charged vertical pressure tank, or choose the Bianco 24–60 L horizontal model for compact systems where a sideways fit works best.
Download documents
Bianco vertical pressure tank 40L – Product data sheet
Bianco vertical pressure tank 60L – Product data sheet
Bianco vertical pressure tank 80L – Product data sheet
Bianco vertical pressure tank 100L – Product data sheet
Bianco vertical pressure tank 160L – Product data sheet
Bianco vertical pressure tank 200L – Product data sheet
Bianco vertical pressure tank 300L – Product data sheet
FAQ
Common pump problems and solutions with the Bianco vertical pressure tank 4 bar
Why is my Bianco pressure tank losing pressure?
A pressure drop is usually caused by the air charge inside the tank decreasing over time. This can happen naturally, or from a slow leak at the air valve. When the air cushion is too low, the pump must run more frequently to maintain pressure. To fix this, you’ll need to drain the tank and recharge it to the correct pre-charge pressure (normally 2 psi below your pump’s cut-in). Regular checks every 6–12 months can help prevent this issue.
How do I know if the bladder has failed?
A failed bladder is one of the most common issues with any pressure tank. If the bladder bursts, the tank becomes waterlogged, meaning it fills completely with water and loses its ability to hold an air cushion. Signs include the pump short cycling, water pressure dropping at the taps, and the tank feeling solid when tapped. In most cases, a ruptured bladder means the tank needs to be replaced, as repairs are rarely cost-effective.
Why does my pump keep turning on and off?
This issue is called “short cycling” and happens when the tank can no longer provide steady pressure. It usually means the pre-charge is set too low, the bladder has failed, or the tank has lost its air cushion. Short cycling not only reduces water pressure but also puts stress on your pump, significantly shortening its lifespan. Resolving this quickly prevents costly pump repairs.
How long do Bianco pressure tanks last?
On average, a Bianco tank will last 5–10 years, depending on installation, maintenance, and water quality. The tank body is built from cold-rolled carbon steel with an epoxy lining for durability, and the stainless steel connections help prevent rust. However, lifespan can be reduced by corrosive water, poor installation, or lack of air charge maintenance. Regular inspections help you get the most out of your tank.
Can a Bianco pressure tank get waterlogged?
Yes, waterlogging occurs when the bladder ruptures or loses air, leaving no cushion inside the tank. This forces the pump to switch on more often, reduces water pressure, and wastes electricity. In some cases, recharging the tank can help, but if the bladder is damaged, the only solution is replacing the tank.
How do I recharge the air in the tank?
Start by switching off the pump and draining the tank completely. Then, using a tyre pump and a reliable pressure gauge, inflate the tank’s air valve until the pre-charge is about 2 psi lower than your pump’s cut-in pressure. For example, if your pump cuts in at 30 psi, set the tank to 28 psi. This ensures proper balance between pump and tank, extending the life of both.
Why is my tank leaking?
Leaks can come from fittings, seals, or corrosion around the water connection. A small drip at the brass fittings can usually be fixed with resealing. However, if water is seeping from the steel body itself, the integrity of the tank has been compromised. At that point, replacement is the safest and most cost-effective option.
When should I replace my Bianco tank?
Replacement is usually needed if the bladder has failed, the tank body has corroded, or the pump is short cycling continuously despite adjusting the pre-charge. Continuing to use a compromised tank can damage your pump and waste energy, so replacing it promptly ensures reliable water pressure and long-term system performance.
