Accumulator Vessels – Composite
GWS 200 litre Composite Accumulator C2B-200LV
- Established 1975
- Trusted by thousands of customers
GWS 200 litre Composite Accumulator C2B-200LV
Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action diaphragm designs of GWS Challenger™ tanks.
More about this product
Overview
Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action diaphragm designs of GWS Challenger™ tanks.
The GWS C2Lite CAD™ series offers a high-performance, lightweight composite solution for pressure vessels, designed with advanced technology to provide superior durability and functionality. Here’s a breakdown of the key features and benefits:
The GWS C2Lite CAD™ composite vessels are one of the best options for reliable, long-lasting pressure vessel solutions, offering unmatched performance and durability in the industry.
The C2Lite CAD™ Series of pressure tanks are designed to deliver reliable, long-lasting performance with minimal maintenance. These tanks are ideal for use in a variety of applications, offering superior durability and ease of installation. Here’s a detailed overview of their specifications and suitable applications:
The C2Lite CAD™ Series is a top choice for those needing reliable, efficient, and maintenance-free pressure tanks in a variety of residential, commercial, and industrial applications.
Features
Built for
Specification
| Product | GWS 200 litre Composite Accumulator C2B-200LV |
|---|---|
| Max. pressure | 8.6 bar |
| Capacity | 200 litres |
| Pre-charge | 1.4 bar |
| Max. liquid temperature | 49 °C |
| Connection | 1 1/4″ BSP |
| Diameter | 546 mm |
| Height | 1099 mm |
| Gross weight | 20.19 kg |
| Construction | Composite shell, copolymer polypropylene liner |
| Diaphragm | CAD-2 butyl, 100% chlorine resistant |
| Approvals | WRAS, ACS, NSF/ANSI 61, CE/PED, ISO 9001 |
FAQs
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manual JPEGDownload
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data sheet 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.
Frequently Asked Questions
Quick answers to common questions about the GWS 200 litre Composite Accumulator C2B-200LV. 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 a mains pressure boosting system?
A mains pressure boosting system increases the pressure and flow of water from the incoming mains supply into a property. It typically combines a pump and a storage or expansion tank, drawing water from the mains and delivering it to taps, showers and appliances at a stronger, more consistent pressure. They are used where the incoming mains is too weak to serve modern outlets reliably.
When do I need a mains booster pump?
You normally need a mains booster if static mains pressure is below 1.5 to 2 bar, if showers run weakly when other taps are open, or if combi boilers struggle to deliver hot water. Anglian Pumping recommends checking static pressure at the stop tap before specifying a system, then choosing a model rated for the number of bathrooms and outlets in the property.
What size mains booster do I need for my home?
Sizing depends on the number of bathrooms, the type of fittings and the static mains pressure. As a guide, a 1 to 2 bathroom property with combi boiler or single shower often needs 1.6 to 3 bar boost. A 2 to 3 bathroom property typically needs 3 to 4.5 bar with an integral break tank. Larger homes need a tank-and-pump system such as the DAB Esybox with Esytank or a Powertank set.
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.
What is a pressure vessel used for in a pumping system?
A pressure vessel stores water under pressure, helping maintain supply and reduce unnecessary pump starts.
What is the difference between an accumulator and an expansion vessel?
Accumulators provide pressurised water storage, while expansion vessels accommodate volume changes caused by temperature; product suitability depends on system design.
How do I choose a pressure vessel?
Consider intended use, capacity, maximum working pressure, pre-charge requirements, installation orientation and potable-water suitability.



