The W22 Close Coupled motor line was specifically developed for direct drive pumps, both in the JM and JP version. The W22 JM motors have short axis, which limits the vibration and radial movement, extending the seal service life. On the other hand, the W22 JP motors have longer axis. Direct drive with perfect alignment and extended service life.
| Standard |
NEMA MG-1 |
| Frequency |
50 Hz |
| Voltage |
200/400 V |
| Number of poles |
2 |
| Degree of Protection |
IP55 |
| Synchronous speed |
3000 rpm |
| Output rating |
25 HP |
| Mounting |
F-1 |
| Flange |
C |
| Terminal box¹ |
Left position |
| Enclosure |
IC411 - TEFC |
Electric Motors
| Frame |
284/6JM |
| Output |
25 HP (18.5 kW) |
| Number of Poles |
2 |
| Frequency |
50 Hz |
| Rated speed |
2935 rpm |
| Slip |
2.17 % |
| Rated voltage |
200/400 V |
| Rated current |
66.2/33.1 A |
| L. R. Amperes |
450/225 A |
| LRC |
6.8x(Code G) |
| No load current |
20.5/10.3 A |
| Rated torque |
44.7 ft.lb |
| Locked rotor torque |
220 % |
| Breakdown torque |
290 % |
| Locked rotor time |
32s (cold) 18s (hot) |
| Moment of inertia (J) |
2.44 sq.ft.lb |
| Design |
B |
| Insulation Class |
F |
| Service factor |
1.15 |
| Temperature rise |
80 K |
| Duty Cycle |
Cont.(S1) |
| Starting Method |
Direct On Line |
| Ambient temperature |
-20°C to +40°C |
| Altitude |
1000 m.a.s.l. |
| Degree of Protection |
IP55 |
| Enclosure |
IC411 - TEFC |
| Mounting |
F-1 |
| Rotation¹ |
Both (CW and CCW) |
| Noise level² |
67.0 dB(A) |
| Approx. weight³ |
353 lb |
Efficiency
| 50% |
90.0 |
| 75% |
91.7 |
| 100% |
91.7 |
Power factor
| 50% |
0.77 |
| 75% |
0.85 |
| 100% |
0.88 |
Features
| Frame Material |
Cast Iron |
| Impregnation Method |
Dip and Bake Polyester |
| Regreasing System |
At Drive end and Non-drive end |
| Main terminal box hole |
NPT 1 1/2" |
| Terminal Block |
Without |
| Drain |
Rubber, automatic |
| Shaft Material |
SAE 1040/45 Carbon Steel |
| Painting |
RAL 5009 203A (ISO 12944 - C2) |
| Grounding Lugs |
Single |
| Fan Cover material |
Cast Iron |
| Tropicalized Painting |
Without |
| Fan material |
Plastic |
| Bearing cap |
Yes- Bearing Cap |
| Balancing Method |
1/2 Key |
| Drip Cover |
Without |
| Pump Seal |
Mechanical Seal |
| Overload protector (phenolic) |
Without overload protector |
| Connection Cables Quantity |
12 |
Features
| Frame Material |
Cast Iron |
| Impregnation Method |
Dip and Bake Polyester |
| Regreasing System |
At Drive end and Non-drive end |
| Main terminal box hole |
NPT 1 1/2" |
| Terminal Block |
Without |
| Drain |
Rubber, automatic |
| Shaft Material |
SAE 1040/45 Carbon Steel |
| Painting |
RAL 5009 203A (ISO 12944 - C2) |
| Grounding Lugs |
Single |
| Fan Cover material |
Cast Iron |
| Tropicalized Painting |
Without |
| Fan material |
Plastic |
| Bearing cap |
Yes- Bearing Cap |
| Balancing Method |
1/2 Key |
| Drip Cover |
Without |
| Pump Seal |
Mechanical Seal |
| Overload protector (phenolic) |
Without overload protector |
| Connection Cables Quantity |
12 |
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