These pumps use a spherical motor principle. The only moving part in the
pump is a spherically shaped rotor/impeller unit with a self-readjusting bearing
supported on an ultra hard. low-wear ceramic ball.
ADVANTAGES
Lifelong quiet operation. Since the rotor is supported on a bearing
ball, the design virtually eliminates bearing clearance. The pump
works quietly, even after years of operation.
Extremely long service life. The pumps are designed for long-term
continuous use (0.8mm wear path in the carbon bearing= vast
improvement over conventional canned motor pumps). They are
designed to resist blockage and are maintenance-free. All motors
are fully encapsulated at no extra cost.
Simple and low-cost rotor replacement. The pump rarely needs
to be replaced in its entirety after the service life.

Model S1 has a bronze head and is ideal for circulating water in
solar panels.
Model S4, S5, S6 are ideal replacements for central heating pumps   

Model's D1, D2, D3, D4 have bronze heads and a 12/24 volt
brushless motor  with the same specification as above     
Model S1
Ac Models 230 Volts
MODEL
Max power
input
Max current
draw
Max pump
head
Max pump
flow
Price
S1
25 Watts
0.11amps
1.5m
1100 L/H
£95.00
S4
65 Watts
0.30 amps
4.3m
2000 L/H
 
S5
99 Watts
0.50 amps
6.5m
3100 L/H
 
S6
130 Watts
0.60 amps
7m
4200 L/H
 
Model
Max power   
   input
Max current
draw
Max pump
head
Max pump
flow
Price
D1
3.5 Watts
0.28 amps
1m
850 L/H
 
D2
6 Watts
0.50 amps
1.8m
1000 L/H
 
D3
10Watts
0.83 amps
2.9m
1200 L/H
 
D4
17 Watts
1.41 amps
4m
1400 L/h
 
HIGH EFFICIENCY MAGNETIC DRIVE DIRECT CURRENT
CIRCULATORS

The EcoCirc magnetic drive spherical motor design offers many
benefits over other pump styles: it operates on extremely low input at
a specified nominal voltage up to 24 volts; the spherical permanent
magnet eliminates impeller slippage; the motor does not have a shaft,
is fully potted and has no moving parts; the pump has no seals; and
both the drive and motor magnets have thick cross-sections that resist
cracking due to thermal shock. The brushless motor has a lifetime in
excess of 10,000 hours when operated at 12 volts and can be
powered directly by solar panels, battery or other DC power sources.
The unique screw ring design for this series of pumps allows switching
to AC motors without changing pump housings.
12/24 volt DC pump
with either brass head
or plastic head
WELCOME TO BOB STRATFORD
ALTERNATIVE ENERGY
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