Mainsboost MB 350CV - Mains water pressure boosting


The Mainsboost MB 350CV features a nominal vessel size of 350 litres and a pressurised water holding capacity of approximately 174 litres.

Available in single, twin and triple vessel options, each unit is supplied with a comprehensive Upstream Line-In Kit (ULK) featuring 22 mm pipe diameter fittings.

Constructed from a lightweight composite body and a highly durable virgin butyl diaphragm, Mainsboost MB 350CV vessels are WRAS Approved and come with a 5 year guarantee.

Technical Specification

Product code 44524, 44525, 44526
Guarantee 5 years
WRAS approval 1501305
System patent no. 2349908
Vessel capacity 174 litres
Maximum Head (closed valve) 4.3 bar
Maximum working pressure* 860 kPa (8.6 bar)
Maximum ambient air temperature 40 °C
Min/Max water temperature Min 4 °C / Max 35 °C
Construction Continuous strand fiberglass with epoxy resin
Membrane Butyl rubber
Connectors 1¼ " BSP x 28 mm
Overall height 1448 mm
Width 618 mm
Depth 650 mm
Weight (dry) 34 Kg
Weight (total) 208 Kg
Weight (maximum) 384 Kg

*Working pressure

**This information is per cylinder

Product Variants
Part no Description
44512 MB 100CV-1-22
44513 MB 100CV-2-22
44514 MB 100CV-3-22
44515 MB 130CV-1-22
44516 MB 130CV-2-22
44517 MB 130CV-3-22
44518 MB 200CV-1-22
44519 MB 200CV-2-22
44520 MB 200CV-3-22
44521 MB 250CV-1-22
44522 MB 250CV-2-22
44523 MB 250CV-3-22
44524 MB 350CV-1-22
44525 MB 350CV-2-22
44526 MB 350CV-3-22
44527 MB 450CV-1-22
44528 MB 450CV-2-22
44529 MB 450CV-3-22
44530 MB 450CV-1-28
44531 MB 450CV-2-28
44532 MB 450CV-3-28