Walchem LK Series, Instruction Manual

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4
2 Model Identification Guide
LK N 32 A – VC
1 2 3 4 5
1
LK Series motor-driven metering pump
2
N – NEMA 42C motor mounting flange
3
Capacity/Pressure Rating. Refer to specifications and outer dimensions below.
4
Motor Code:

A = 115/230V, 60Hz, 1 ph, 1/3 HP, 1725 RPM, TEFC Frame 42C

B = 230/460V, 60Hz, 3 ph, 1/3 HP, 1725 RPM, TEFC Frame 42C

C = 190/380V//230/460V, 50/60Hz, 3 ph, 1/3 HP, 1450/1725 RPM, TEFC, Frame 42C

D = 90VDC, 1 ph, 1/3 HP, 1750 RPM, TENV, Frame 42C Variable Speed Motor, 115V Control

E = 180VDC, 1 ph, 1/3 HP, 1750 RPM, TENV, Frame 42C Variable Speed Motor, 230V Control

F = 230/460V, 60Hz, 3 ph, 1/3 HP, 1725 RPM, Explosion Proof Motor: Class 1, Div 1, Group C & D

G = 230/460, 60 Hz, 3 ph, 1/3 HP, 1725 RPM, Inverter Duty Motor, TENV, 42C
5
Liquid End Code. Refer to the table below.
Material symbol VC VH VS TC S6
Pa
rt
Pump head PVC PVC PVC PVDF 316 SS
Valve ball CE HC HC/304 SS CE HC
Valve seat
Type 32 FKM EPDM 304 SS FKM 316 SS
Type 45 to 57 PVC PVC 304 SS PVDF 316 SS
O ring FKM EPDM EPDM FKM -
Valve gasket PTFE
Diaphragm PTFE + EPDM
CE: Alumina ceramic HC: Hastelloy C267
3 Specifications and Outer Dimensions
Model
Capacity
Maximum Pressure
PSI (MPa)
Stroke speed
(spm)
Connection
NPT
Viscosity
cps
50Hz
(l/h)
60Hz
(GPH)
PVC/PVDF SS 50Hz 60Hz PVC/PVDF SS
LKN32 30 9.5 150 (1) 225 (1.5) 96 116 ½” ½”
VC: 300
TC: 300
VH: 500
VS: 1000
S6: 1000
LKN45 50 15.9 150 (1) 225 (1.5) 48 58 ½” ½”
LKN47 100 31.8 120 (0.8) 120 (0.8) 96 116 ½” * ½”
LKN55 168 53.4 75 (0.5) 75 (0.5) 48 58 1” 1”
LKN57 360 114.3 45 (0.3) 45 (0.3) 96 116 1” 1”
* LKN47-VS has 1” NPT connections