Pallas PWG APT-450 Vertical Pressure Storage Tank, 450 Litres Total Volume, 1 1/4" BSP with Base

Pallas PWG APT-450 Pressure Storage Tank – 450 Litres (1¼" BSP with Base)

The Pallas PWG APT-450 is a 450 litre vertical pressure storage tank that holds your water pressure at a set level and stops your pump starting every time a tap is opened. It is ideal for large estates, hotels, farms and light industrial sites where pressure has to hold steady across many outlets.

Water is stored between a heavy-duty butyl diaphragm and an FDA grade polypropylene liner, so it never touches the steel shell. The pressurised air chamber above the diaphragm pushes stored water back into the system, cutting the number of pump starts, saving energy and extending pump life.

Key Features

• 450 litre total volume, 1¼" BSP stainless steel connection
• Supplied with base for stable vertical installation
• Factory pre-charged to 2 bar, adjustable to suit your pump
• Rated to 10 bar and 93°C
• Heavy-duty butyl diaphragm and FDA grade polypropylene liner
• WRAS approved for drinking water, plus ACS, NSF and CE certified
• No routine maintenance needed, 100% quality tested
• 5-year manufacturer's warranty

Technical Specifications

Note: Usable (drawdown) volume depends on your pressure switch settings and is typically around 30–50% of total tank volume, so the APT-450 will deliver approximately 135–225 litres between pump starts.

Applications

• Domestic pressure boosting
• Borehole and private well pump systems
• Private water supplies
• Light commercial and agricultural water systems

Full specifications for the range are in the Pallas data sheet linked on this page. Not sure which size you need? Call our team with your pump details and we'll help you choose.