7
6
BL5
bar (psi) lph (gph)
0.5 (7.4) 15.8 (4.18)
1 (14.7)
12.2 (3.23)
2 (29.4)
10.8 (2.86)
3 (44.1)
9.3 (2.46)
4 (58.8)
7.9 (2.09)
5 (73.5)
6.5 (1.72)
6 (88.2)
5.8 (1.53)
7 (102.9)
5.0 (1.32)
8 (117.6)
4.3 (1.14)
9 (132.3)
4.0 (1.06)
10 (147)
3.6 (0.95)
BL5
Pump output with 120 strokes/minute
0,0
2,0
4,0
6,0
8,0
10,0
12,0
14,0
16,0
18,0
0,5
1
2
3
4
5
6
7
8
9
10
BAR
L
P
H
FLOW RATE CHART
The following charts show the relationship
between their flow rate and pressure.
An increase of pressure in the system de-
creases the flow rate.
BL1.5
Pump output with 120 strokes/minute
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
0,5
1
2
3
4
5
6
7
8
9
10
11
12
BAR
L
P
H
BL3
Pump output with 120 strokes/minute
0,0
2,0
4,0
6,0
8,0
10,0
12,0
14,0
16,0
18,0
0,5
1
2
3
4
5
6
7
8
9
10
11
12
BAR
L
P
H
BL3
bar (psi) lph (gph)
0.5 (7.4) 15.8 (4.18)
1 (14.7)
12.2 (3.23)
2 (29.4)
9.3 (2.46)
3 (44.1)
7.9 (2.09)
4 (58.8)
6.5 (1.71)
5 (73.5)
5.0 (1.32)
6 (88.2)
4.0 (1.06)
7 (102.9)
3.3 (0.87)
8 (117.6)
2.9 (0.77)
9 (132.3)
2.5 (0.66)
10 (147)
2.2 (0.58)
11 (161.7) 1.9 (0.50)
12 (176.4) 1.5 (0.40)
BL1.5
bar (psi) lph (gph)
0.5 (7.4)
8.3 (2.20)
1 (14.7)
6.8 (1.80)
2 (29.4)
5.4 (1.43)
3 (44.1)
5.2 (1.38)
4 (58.8)
4.8 (1.27)
5 (73.5)
4.5 (1.19)
6 (88.2)
4.1 (1.08)
7 (102.9)
3.2 (0.85)
8 (117.6)
2.9 (0.77)
9 (132.3)
2.1 (0.56)
10 (147)
1.8 (0.48)
11 (161.7) 1.7 (0.45)
12 (176.4) 1.6 (0.42)
The ball valves are constructed in glass. The
body is made of fiber-reinforced polypropy-
lene for strength and durability.
Reliability through simplicity
All BlackStone pumps use the positive dis-
placement solenoid method of pumping. This
method has fewer moving parts than a stan-
dard motor-driven pump, and does not have
the mechanical failures associated with con-
ventional pumps.
BlackStone's Positive Displacement design
has several distinct advantages over other
types of mechanical designs:
• It is more accurate. Each stroke of the
piston is precisely the same as the stroke
before it ... and the stroke after it.
• Positive displacement allows for easier self-
priming.
• Pumping pressure is as high as 12 bar
(176 psi). This allows you to install your
pump in the widest variety of tank-to-tank
and tank-to-in-line applications.
• High accuracy and repeatability. A wire-
wound potentiometer and solid state elec-
tronics are combined to achieve greater
precision and control.
Easy installation
Designed with mounting holes in the base as
well as rear panel, BlackStone pumps can be
installed on a wall as well as directly on top
of tanks and drums.
There is no need for additional hardware.
All the controls and pump assemblies are
conveniently located on the front of the unit.
If the operator must access the pump head
or control panel for any reason, there is no
need to dismount the unit.
