240 Challis Booster

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240 Litre Challis Booster c/w 28mm Line in Kit



£ 922.00+VAT





Challis Booster 240 litre Accumulators are manufactured in Boston, USA and are produced to the highest possible quality standards, using only the very best materials, and come with full WRAS approval. This allows the manufacturer to offer a 5 year guarantee.* No other vessel in the UK market place offers the same reassurance.   Challis Booster vessels are suitable for a wide range of applications including:- Water booster units,irrigation systems and thermal expansion.

The Challis Booster accumulator unit is designed with a patented controlled action CAD2 diaphram assembly. It features a chlorine resistant 100% Butyl diaphram with a precision molded copolymer polypropolene liner for superior air and water seperation.The CAD2 diaphram assembly is clenched together with a positive lock internal clench ring which contains draw off water in a precharged air atmoshpere, thereby providing seperation between the diaphram and the vessel wall.This "air buffer" eliminates problems of condensation. Constructed from a WRAS  approved high grade Butyl, the diaphram assembly seals water in a true non corrosive chamber. In order to suspend debris and prevent clogging of the inlet port, water enters the vessel via a stainless steel connection and port diffuser, which directs water into the chamber, agitating it as it enters. The air chamber is sealed with a fixed O`ring and closed cell foam, thereby providing years of trouble free use.

Challis Booster units are finished with an epoxy undercoating and an almond coloured two part polyurethane high gloss finish.    All MainBoost vessels are manufactured to ISO9001 standards and are quality tested at several stages during production to ensure the integrity of every unit.

Each Challis Booster system is supplied complete with a correctly sized, bespoke "Line In" kit. This kit is purposely designed to control and limit the incoming mains water pressure and comprises; Isolating valve, pressure reducing valve c/w gauge, double check valve, line strainer and upstream pressure gauge.


Max Working Pressure                   10 Bar

Max Working Temp                          90 Degrees C

Standard Pre Charge Pressure    2.6 Bar

240 Litre Nominal Capacity

Height                                                 121.2cm

Diameter                                            47.8cm

Weight                                                 36.47kg

Patented CAD2 diaphragm technology

Condensation reducing design

Two part polyurethane, epoxy primed paint finish

Leak free air valve cap sealed with closed cell foam

Comprehensive testing

No maintenance





NSF Standard 61, CE/PD, WRAS, ACS,
ISO-9001, Gost approved Stainless steel water connection


Specification SheetInstallation Instructions on Application





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