Mainsboost Plus MBP 200SH - Mains water pressure & flow boosting

Mainsboost Plus

The Mainsboost MBP 200SH features a nominal vessel size of 200 litres and an actual water holding capacity of typically 110 litres.

In addition to the boost to water flow provided by the Mainsboost vessel, the vessel mounted Mainsboost Plus pump unit is capable of boosting water pressure up to 3.5 bar.

Designed to be installed horizontally in installation situations where vertical space may be restricted, the Mainsboost MBP 200SH is supplied with a compatible mounting cradle.

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, Mainsboost Plus MBP 200SH water performance systems are WRAS Approved and come with a 5 year guarantee (3 year guarantee on pump and fittings).

Technical Specification


Product code 44536, 44537, 44538
Guarantee 3 years
WRAS approval 1611336
System patent no. 2349908
Pump type Peripheral
Mechanical seal EPDM / PTFE / Al. Oxide
Flexible hoses 2
Dry run protection  
Pump body Brass
Impeller Brass
Maximum head (closed valve) 4.3 bar
Maximum working pressure* 600 kPa (6 bar)
Maximum ambient air temperature 40 °C
Min / Max water temperature** Min 4 °C / Max 35 °C
Pump connections G ¾ male
Flexible hoses
Connections 22 mm push-in x 22 mm push-in x
240 mm long
Type Induction, auto-reset thermal trip
Duty rating Continuous
Power supply/phase/frequency 230 V a.c./ 1 / 50 Hz
Current (full load) 1.8 Amps
Power consumption 398 Watts
Fuse rating 3 Amps
Power cable (pre-wired) 1.5 metres
Enclosure protection IPX4
Length 200 mm
Width 203 mm
Height (excluding hoses) 216 mm



Guarantee 5 years
Vessel capacity 110 litres
Construction Mild Steel
Membrane Butyl rubber
Connectors 1¼ " BSP x 28 mm
Diameter 535 mm
Overall height 1310 mm
Weight (dry) 40 Kg
Weight (total) 155 Kg
Weight (maximum) 240 Kg

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

**This information is per cylinder

Product Variants
Part no Description
44536 MBP 200SH-1-22
44537 MBP 200SH-2-22
44538 MBP 200SH-3-22
44539 MBP 250SH-1-22
44540 MBP 250SH-2-22
44541 MBP 250SH-3-22