Mainsboost MB 100SV - Mains water pressure boosting


The Mainsboost MB 100SV features a nominal vessel size of 100 litres and a pressurised water holding capacity of approximately 55 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 an epoxy coated steel body and a highly durable virgin butyl diaphragm, all Mainsboost vessels are WRAS Approved and come with a 5 year guarantee.

Technical Specification

Product code 44452, 44453, 44454
Construction Mild steel
Membrane Butyl rubber
WRAS approval 1501305
System patent no. 2349908
Guarantee 5 years
Maximum working pressure* 1000 kPa (10 bar)
Min/Max operating temperature Min 4 °C / Max 35 °C
Max rated temperature 90 °C
Vessel capacity*** 55 litres
Height 890 mm
Width 410 mm
Depth 410 mm
Weight empty 17.5 Kg
Weight filled 72.5 Kg
Maximim weight 117.5 Kg
ULK Kit 22 mm

*The maximum pressure that can be applied to the cylinder under any installation conditions.

**Vessel capacity, dimensions and weights are per cylinder

***At typical working pressure

Product Variants
Part no Description
44452 MB 100SV-1-22
44453 MB 100SV-2-22
44454 MB 100SV-3-22
44455 MB 130SV-1-22
44456 MB 130SV-2-22
44457 MB 130SV-3-22
44458 MB 200SV-1-22
44459 MB 200SV-2-22
44460 MB 200SV-3-22
44461 MB 250SV-1-22
44462 MB 250SV-2-22
44463 MB 250SV-3-22
44464 MB 300SV-1-22
44465 MB 300SV-2-22
44466 MB 300SV-3-22
44467 MB 450SV-1-22
44468 MB 450SV-2-22
44469 MB 450SV-3-22
44470 MB 450SV-1-28
44471 MB 450SV-2-28
44472 MB 450SV-3-28
44744 MB 600SV-1-35
44745 MB 800SV-1-35
44746 MB 1000SV-1-35