GWS FlowThru Steel
GWS 450 litre FlowThru Steel GFU-450LV
- Established 1975
- Trusted by thousands of customers
GWS 450 litre FlowThru Steel GFU-450LV
The FlowThru™ range of tanks is ideally suited for systems where the water stored in the tank is not circulated due to a maintained level of continuous pressure in the system. Every model in the range has been designed with a patented FlowThru™ connection which diverts system water into and, more importantly, out of the tank while the pump is running.
This constant flushing action assures that the water in the tank remains as fresh as possible and eliminates the possibility of stagnant water during normal system operations.
More about this product
Like the rest of GWS’s steel and composite tanks, the FlowThru™ incorporates our patented controlled action diaphragm-CAD2, which regulates movement and prevents the diaphragm from rubbing against the tank wall.
Applications include:
- Pressure booster systems
- HVAC systems
- Cooling tower systems
- Evaporative condenser systems
- Spa systems
Global Water Solutions now guarantees the freshest water quality possible with the revolutionary FlowThru™ series design; available in both composite and steel models. Featuring GWS’s exclusive patented FlowThru™ technology, the possibility of stagnation has been eliminated, so you can rest assured that your system will provide the freshest water possible.
As with all GWS products, FlowThru™ tanks are quality tested throughout the production process to ensure their structural integrity. Steel models are capable of managing a maximum working temperature of 90°C/ 194°F, and composite models are capable of managing 49°C / 120°F.
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data sheet PDFDownload
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manual PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the GWS 450 litre FlowThru Steel GFU-450LV. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is an accumulator tank?
An accumulator tank is a pressurised vessel that connects directly to the mains supply and stores water under pressure. When a tap or shower opens, water discharges immediately from the vessel at full mains pressure rather than drawing only from the street main. This delivers stronger, more consistent flow at peak times. Accumulators have no pump and no moving parts so they are maintenance free and silent.
When should I use an accumulator instead of a pump?
An accumulator is the right solution when static mains pressure is adequate – above 2 bar – but flow is poor or drops during peak demand. It boosts available flow without adding a pump, energy use or noise. If static pressure is below 2 bar, a booster pump is needed instead, or an accumulator combined with a charge pump such as the WaterBoost ACF1.
What size accumulator do I need?
Accumulators are typically sized on a 60 per cent usable rule – a 300 litre vessel delivers around 180 litres of boosted water per cycle. As a guide, a 2 to 3 bedroom home suits a 300 litre vessel such as the GWS GCB-300LV. Larger 4 to 5 bedroom homes or properties with multiple bathrooms typically need 450 to 600 litres. Vertical models save floor space, horizontal models suit lofts and roof spaces.