Pressure Tank | Compact Vertical | 8L & 18L Options
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Compact, reliable pressure storage for domestic water supply, pressure boosting and irrigation systems.
The PT Series compact vertical pressure tanks are designed for residential, light commercial and irrigation applications.
Available in 8L and 18L capacities, these tanks help reduce frequent pump starts, provide pressurised water storage and support smoother operation of your water supply system.
Each tank features a polypropylene liner and high-grade butyl diaphragm to separate water from the pressurised air. The cast stainless steel water connection provides excellent corrosion resistance, while the durable epoxy-coated exterior offers long-lasting protection.
Both models are suitable for installations where space is limited and reliable pressure storage is required.
Features
- Compact vertical design
- Polypropylene liner and high-grade butyl diaphragm
- Cast stainless steel water connection
- Corrosion-resistant baked epoxy-coated finish
- Suitable for residential, light commercial and irrigation applications
- Designed for potable-water systems
- O-ring-sealed air valve cap
- Factory pressure tested
- Maximum working pressure: 10 bar
- Maximum working temperature: 100°C
- 5-year manufacturer's tank replacement guarantee
Specifications
| Specification | PT8 | PT18 |
|---|---|---|
| Tank capacity | 8L | 18L |
| Configuration | Vertical | Vertical |
| Connection | 25mm (1") male | 25mm (1") male |
| Dimensions (diameter × height) | 200 × 300mm | 280 × 370mm |
| Weight | 2.3kg | 3.7kg |
| Quoted system drawdown | Approx. 2.8L | Approx. 7.2L |
| Maximum working pressure | 10 bar | 10 bar |
| Maximum working temperature | 100°C | 100°C |
| Internal liner | Polypropylene | Polypropylene |
| Diaphragm | Butyl | Butyl |
| Water connection | Cast stainless steel | Cast stainless steel |
| Guarantee | 5 years | 5 years |
Actual usable drawdown depends on the system's operating pressure settings and tank pre-charge.
Frequently Asked Questions
Does a pressure tank increase water pressure?
Not by itself. A pressure tank stores water under pressure and helps reduce frequent pump cycling. The pump and pressure-control settings determine the operating pressure.
Should I choose the 8L or 18L tank?
The 8L model suits compact installations requiring a smaller volume of pressurised water storage. The 18L provides greater usable drawdown between pump starts, helping reduce cycling further. The correct size depends on your pump and system requirements.
Can these tanks be used for drinking water?
The PT Series is designed for potable-water applications, with a polypropylene liner and butyl diaphragm separating the water from the pressurised air.
Do pressure tanks require maintenance?
Periodic inspection of the tank and pressure system is recommended. Check for leaks, corrosion, physical damage or unusual pump cycling, and arrange assessment if anything appears abnormal.
What guarantee is included?
Both models carry a 5-year manufacturer's limited tank replacement guarantee against manufacturing defects, subject to the supplier's terms and conditions.
Correct installation, appropriate pre-charge settings and suitable overpressure protection are essential.
View the manufacturer's installation and warranty instructions.
Need help choosing the right pressure tank? Contact us for straightforward advice.