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9 TECHNICAL SPECIFICATION
MJ3 VM
41712
MJ3 HM
41729
General
Warranty 5 years (fittings + ULK 2 years)
WRAS approval 1501305
Approvals WRAS, CE
Typical noise From 50 dB(A)
Features
Bypass 22 mm
Mounting Vertical vessel Horizontal vessel
Pump type Peripheral
Flexible hoses 2
Dry run protection
ü ü
Materials
Pump body Brass
Impeller Brass
Mechanical seal EPDM / PTFE / Al. Oxide
Performance
Maximum head – closed valve 4.3 bar (43 metres)
Maximum working pressure* 600 kPa (6 bar)
Maximum ambient air temperature 40
o
C
Min / Max operating temperature Min 4
o
C / Max 35
o
C
Connections Pump connections G ¾ male
Flexible hoses Connections 22 mm push-in x 22 mm push-in x 240 mm long
Motor
Type Induction (auto-reset thermal trip)
Duty rating Continuous (S1)
Electrical
Power supply (Vac/Ph/Hz) 230 V a.c. / 1 / 50 Hz
Power consumption – P1 398 Watts
Current – full load 1.8 Amps
Fuse rating 3 Amps
Power cable length 1.5 metres (pre-wired)
Physical
Enclosure protection IPX4
Pump Length** 200 mm
Pump Width* 203 mm
Pump Height – excluding hoses and bracket** 216 mm
Weight – including fittings 8.0 Kg 8.1 Kg
*NOTE: The maximum pressure that can be applied to the system under any
installation conditions.
** NOTE: See overleaf for overall system dimensions when the MJ3 pump is
fitted to a vertical or horizontal Mainsboost pressure vessel.
Stuart Turner reserve the right to amend the specification in line with its policy of
continuous development of its products.
9.11 Noise: The equivalent continuous A-weighted sound pressure level at a
distance of 1 metre from the pump does not exceed 70 dB(A).
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