LK-Series
The Iwaki LK Series metering pumps are motor-driven, mechanically-actuated diaphragm metering pumps. This larger Series can achieve outputs up to 856 GPH (3240 l/h) and maximum pressures of 220 PSI (1.5 MPa). The LK Series is ideal for large chemical feed applications in a wide range of fields, including water treatment, chemical process, agriculture, mining and paper.
Summary of Key Benefits
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High Performance & Versatile Design – The LK series has a discharge accuracy (repeatability) that is within ±2% FS. Reliability has been enhanced with the improvement in the linearity of the stroke and the discharge ratio of each stroke.
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Drive- The heart of the LK is the dual-cam drive with a built-in worm gear type speed reducer. This compact & rigid mechanism, provides maximum wear resistance in continuous operation over long periods of time.
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The LK-A, LK-B, and LK-C series pump are designed to be fit with IEC general-purpose, vertically mounted TEFC outdoor-use motors, providing different voltage and enclosure options, including VFD-ready and explosion-proof designs.
Model |
Capacity Note 1 |
Max. Pressure |
Stroke Speed |
Effective Diaphragm diameter mm |
Connection Note 2 |
Motor output HP (kW) |
IEC Motor 4 Mount Frame Size |
|||
|---|---|---|---|---|---|---|---|---|---|---|
60 Hz GPH (LPM) |
50 Hz GPH (LPM) |
PVC PSI (MPa) |
SS PSI (MPa) |
60 Hz spm |
50 Hz spm |
(NPT) Flange ANSI 150lb |
||||
LK-A55 |
52.3 (3.3) |
44.4 (2.8) |
145.0 (1.0) |
58 |
48 |
ø100 |
½” |
0.5 (0.4) |
71 M |
|
LK-A57 |
114.1 (7.2) |
95.1 (6.0) |
101.5 (0.7) |
116 |
96 |
|||||
LK-A65 |
171.2 (10.8) |
142.6 (9.0) |
43.5 (0.3) |
58 |
48 |
ø138 |
1 ½” |
|||
LK-B65 |
171.2 (10.8) |
142.6 (9.0) |
72.5 (0.5) |
101.5 (0.7) |
58 |
48 |
ø138 |
1 ½” |
1.0 (0.75) |
80 M |
LK-B75 |
253.6 (16.0) |
210.8 (13.3) |
72.5 (0.5) |
ø150 |
2” |
|||||
LK-C76 |
380.4 (24.0) |
317.0 (20.0) |
72.5 (0.5) |
86 |
72 |
ø150 |
2” |
2.0 (1.5) |
90 L |
|
LK-C86 |
634.0 (40.0) |
523.0 (33.0) |
43.5 (0.3) |
ø205 |
2 ½” |
|||||
LK-C87 |
855.9 (54.0) |
713.3 (45.0) |
116 |
96 |
mm |
PVC |
SS |
PVC/SS |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
L |
a |
b |
c |
L |
a |
b |
c |
H1 |
d |
e |
f |
g |
|
LK-A5 |
476 |
325 |
-29 |
111 |
473 |
320 |
-32 |
108 |
547 |
180 |
240 |
260 |
300 |
LK-A6 |
523 |
599 |
108 |
154 |
533 |
431 |
24 |
164 |
547 |
180 |
240 |
260 |
300 |
LK-B6 |
595 |
599 |
90 |
164 |
605 |
431 |
6 |
174 |
594 |
240 |
300 |
310 |
350 |
LK-B7 |
599 |
600 |
90 |
167 |
610 |
465 |
23 |
178 |
594 |
240 |
300 |
310 |
350 |
LK-C7 |
599 |
600 |
90 |
167 |
610 |
465 |
23 |
178 |
601 |
240 |
300 |
310 |
350 |
LK-C8 |
605 |
647 |
114 |
173 |
609 |
633 |
107 |
177 |
601 |
240 |
300 |
310 |
350 |
inches |
PVC |
SS |
PVC/SS |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
L |
a |
b |
c |
L |
a |
b |
c |
H1 |
d |
e |
f |
g |
|
LK-A5 |
18.74 |
12.80 |
-1.14 |
4.37 |
18.62 |
12.60 |
-1.26 |
4.25 |
21.54 |
7.09 |
9.45 |
10.24 |
11.81 |
LK-A6 |
20.59 |
23.58 |
4.25 |
6.06 |
20.98 |
16.97 |
0.94 |
6.46 |
21.54 |
7.09 |
9.45 |
10.24 |
11.81 |
LK-B6 |
23.43 |
23.58 |
3.54 |
6.46 |
23.82 |
16.97 |
0.24 |
6.85 |
23.39 |
9.45 |
11.81 |
12.20 |
13.78 |
LK-B7 |
23.58 |
23.62 |
3.54 |
6.57 |
24.02 |
18.31 |
0.91 |
7.01 |
23.39 |
9.45 |
11.81 |
12.20 |
13.78 |
LK-C7 |
23.58 |
23.62 |
3.54 |
6.57 |
24.02 |
18.31 |
0.91 |
7.01 |
23.66 |
9.45 |
11.81 |
12.20 |
13.78 |
LK-C8 |
23.82 |
25.47 |
4.49 |
6.81 |
23.98 |
24.92 |
4.21 |
6.97 |
23.66 |
9.45 |
11.81 |
12.20 |
13.78 |
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