CH 4-40 B (50 Hz) - Centrifugal Multistage Boostamatic Pump

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The CH 4 Boostamatic range of centrifugal multistage pumps has been designed to provide a pressurised water supply from a break tank in either a positive or negative head application, as it does not rely on gravity flow to activate.

The range is suitable for commercial or domestic use, pumping hot or cold water.


  • The range is suitable for commercial or domestic use, pumping hot or cold water

Technical Specification

Product code 46608
Guarantee 1 year
WRAS approval 1601035
Pump type Centrifugal
Mechanical seal EPDM / Carbon / Ceramic
Run on timer 3 sec
Dry run protection  
Pump body Brass / stainless steel
Impeller Stainless steel
Maximum head (closed valve) 3.7 bar
Performance @ 9 l/min 3.6 bar
Performance @ 80 l/min 2.6 bar
Maximum flow 141 l/min
Minimum static inlet pressure 1 metre
Maximum static inlet pressure 10 metres
Maximum static outlet pressure 13 metres
Maximum working pressure* 600 kPa (6 bar)
Maximum ambient air temperature 40 °C
Min / Max water temperature** Min 4 °C / Max 65 °C
Cut out flow 1 l/min (approx)
Cut in pressure 180 kPa (1.8 bar)
Pressure vessel air pre-charge 2.1 bar (30 psi)
Pump connections G 1¼ female (inlet), G 1 female (Outlet)
Type Induction, auto-reset thermal trip
Duty rating Continuous (S1)
Power supply/phase/frequency 230 V a.c./ 1 / 50 Hz
Current (full load) 5.4 Amps
Power consumption 1193 Watts
Fuse rating 13 Amps
Power cable (pre-wired) 0.75 metres
Enclosure protection IPX5
Length 391 mm
Width 155 mm
Height (excluding hoses) 277 mm
Weight (including fittings) 13.6 Kg

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

** A stored water temperature of 60 °C is considered sufficient to meet all normal requirements and will minimise deposition of scale in hard water areas.

Pump Variants
Part no Description
46607 CH 4-30 B, 230/1/50 EPDM/CAR/CER
46608 CH 4-40 B, 230/1/50 EPDM/CAR/CER
46609 CH 4-50 B, 230/1/50 EPDM/CAR/CER
46610 CH 4-60 B, 230/1/50 EPDM/CAR/CER