
Model numbers are given to Nikkiso Non-Seal Pumps (canned motor pumps) according to the following rules.
Click the desired item to see the details of rules applying for that item.
Model
H |
Horizontal |
L |
In-line |
B |
Motor top |
T |
Pump top |
D |
Self-priming |
S |
Submerged |
Construction
N |
Basic |
V |
High viscous |
T |
High temperature with thermal isolation spacer |
S |
Slurry liquid with seal ring |
M |
Slurry liquid with mechanical seal |
G |
Slurry liquid with gas seal |
Q |
Reverse circulation |
R |
Reverse circulation with adapter |
B |
High melting |
C |
High melting (simple type) |
W |
Basic external circulation |
Y |
No cooled high temperature, liquid temperature max. 250°C (482°F) |
X |
No cooled high temperature, liquid temperature max. 350°C (662°F) |

Pump model
21A/B/C, 22A/B/C/D/E, 23A/B/C/D/E/F/G, 24A/B/C/D/E/F, 25B/C/D/E/F, 26C/D/E/F, 27E/F, 46A/B, 47B/C/D, 48C/D/E, 49C, 42X, X12/22/32/42, 461, 631, 632
Motor size
A1-A3, B1-B3, C1-C4, D1-D3, F1-F4, G1-G3, H1-H2, J1-J4, K1-K4, N1-N3, L1-L3, M1-M3, A5. B5. C5. G5

Power supply voltage
A |
190・・11V@50HZ
200・・23V@60HZ |
G |
375・・24V@50HZ
400・・49V@60HZ |
H |
425・・74V@50HZ
450・・99V@60HZ |
Other voltages are available.

Ex-proof code
A |
d2G1 |
B |
d2G2 |
C |
d2G3 |
D |
d2G4 |
E |
eG1 |
F |
eG2 |
G |
eG3 |
H |
eG4 |
I |
ed2G2 |
L |
ed2G3 |
M |
ATEX EExde IICT1 |
N |
ATEX EExde IICT2 |
O |
ATEX EExde IICT3 |
T |
TE |
W |
ATEX EExde IICT4 |
X |
ATEX EExde IICT5 |
Max. allowable working pressure
01 |
1 MPa (150 psig) |
02 |
2 MPa (300 psig) |
03 |
3MPa |
04 |
4 MPa (600 psig) |

Material code
C1 |
SUS304 |
C2 |
SUS304L |
D1 |
SUS316 |
D2 |
SUS316L |
E1 |
CA20 (Alloy 20) |
G2 |
Hastelloy C (Equivalent) |
Jacket and Heat Exchanger for Casing and Rear Bearing Housing
X |
None |
P |
with welded type jacket on casing |
Q |
with casting type jacket on casing |
R |
with casting type jacket on casing and welded type jacket on rear bearing housing |
S |
with welded type jacket on casing and rear bearing housingH |
Jacket and Heat Exchanger for Motor
X |
None |
J |
with mount type jacket |
K |
with mount type jacket, jacket and stator band material SUS304 |
L |
welded type jacket material steel |
M |
welded type jacket, jacket and stator band material SUS304 |
N |
welded jacket cooling with pump un liquid, material same as pump |
C |
with heat exchanger |
D |
with heat exchanger, heat exchanger and stator band material SUS304 |
E |
with separated heat exchanger |