Universal® 2 ND Series – Positive Displacement Pumps
Setting the Standard of Performance and Reliability
Waukesha Cherry-Burrell has long led the industry in designing, manufacturing, and applying external circumferential piston (ECP) style rotary positive displacement pumps. The Universal Series offers exceptional installation flexibility with features like bi-directional flow, 3-way universal gear case mounting, and upper or lower shaft positioning.
Built for durability, these pumps thrive in demanding applications with pressure ratings up to 500 psi (34.5 bar), temperatures up to 300ºF (149ºC), and full CIP capabilities. The Universal 2 ND Series has earned a strong reputation for reliability and performance.
Key Performance Features & Benefits
- Starts with filled, settled slurries without damaging pump or seals.
- Dry running capability with water-flushed seals.
- Preserves shear-sensitive products.
- Pulsation-free flow reduces system vibration and wear.
- No internal rotor contact for extended pump life.
- Non-critical shaft timing simplifies maintenance.
- No oil seepage into product zone—eliminates contamination risk.
- WCB single and double mechanical seals optimized for longevity and performance.
- Triple lip seals available for chemically aggressive or COP sanitary applications.
- Rotor/shaft connection sealed from product zone.
Long-Life Features
- Diffusion-hardened surfaces for rotor, body, and cover—ideal for abrasive or chemically aggressive environments.
- Special rotor nut designed for extended service without loosening.
- No bearings in the product zone—minimizes wear and corrosion.
- Large diameter 17-4 PH shafts for increased strength and stiffness, reducing vibration and extending seal life.
- Heavy-duty bearing frame (stainless steel option available).
- Grease-lubricated bearings ensure consistent lubrication across all operating conditions.
- Wave spring loading extends outer seal life compared to traditional O-rings.
- Unique mechanical seal design with 3-pin stationary seal and specialized shaft for rotary seal.
- Double tapered roller bearings provide precise rotor positioning and longer seal life.
Key Applications
Chemical / Industrial
- Acetone
- Acids/Bases
- Additives
- Adhesives
- Alcohols
- Black Liquor Soap
- Brine
- Caustic (Sodium Hydroxide)
- Cell Broth
- Chemical Salts
- Coating Pigments
- Collagen
- Cooked Starch
- Detergent Gel
- Detergent Slurry
- Dyes
- Emulsions
- GCC Fillers
- Glycol (Ethylene Glycol, Ethylene Alcohol)
- Greases
- Inks
- Inorganic Compounds
- Isocyanate
- Kaolin
- Organic Compounds
- PCC Fillers
- Polymers
- Polyvinyl Acetate (PVAC)
- Resins
- Retention Aids
- Sorbitol
- Starch
- Starch Adhesives
- Starch Slurry
- TI02 Fillers
- Wax
|
MODEL |
DISPLACEMENT |
NOMINAL |
MAXIMUM |
|---|---|---|---|
| 006-U2 ND | 0.0082 Gal. (0.031 Liter) | 8 GPM (1.8 m³/hr.) |
300 PSI (20.7 bar)
|
| 015-U2 ND | 0.0142 Gal. (0.054 Liter) | 11 GPM (2.5 m³/hr.) |
250 PSI (17.2 bar)
|
| 018-U2 ND | 0.029 Gal. (0.110 Liter) | 20 GPM (4.5 m³/hr.) |
200 PSI (13.8 bar)
|
| 030-U2 ND | 0.060 Gal. (0.227 Liter) | 36 GPM (8.2 m³/hr.) |
250 PSI (17.2 bar)
|
|
040-U2 ND
|
0.076 Gal. (0.288 Liter)
|
45 GPM (10.2 m³/hr.)
|
150 PSI (10.3 bar)
|
| 045-U2 ND | 0.098 Gal. (0.371 Liter) | 58 GPM (13.2 m³/hr.) |
450 PSI (31.0 bar)
|
| 060-U2 ND | 0.153 Gal. (0.579 Liter) | 90 GPM (20.4 m³/hr.) |
300 PSI (20.7 bar)
|
| 130-U2 ND | 0.253 Gal. (0.958 Liter) | 150 GPM (34.1 m³/hr.) |
200 PSI (13.8 bar)
|
| 180-U2 ND | 0.380 Gal. (1.438 Liter) | 230 GPM (52.2 m³/hr.) |
450 PSI (31.0 bar)
|
| 210-U2 ND | 0.502 Gal. (1.900 Liter) | 300 GPM (68.1 m³/hr.) |
500 PSI (34.5 bar)
|
| 213-U2 ND | 0.502 Gal. (1.900 Liter) | 300 GPM (68.1 m³/hr.) |
500 PSI (34.5 bar)
|
| 220-U2 ND | 0.521 Gal. (1.972 Liter) | 310 GPM (70.4 m³/hr.) |
300 PSI (20.7 bar)
|
| 320-U2 ND | 0.752 Gal. (2.847 Liter) | 450 GPM (102 m³/hr.) |
300 PSI (20.7 bar)
|
| 370-U2 ND | 1.099 gal. (4.160 Liter) | 660 GPM (150 m³/hr.) | 200 PSI (13.8 bar) |
MODEL 006-U2 ND
0-1000 RPM speed range. 1" (25.4 mm) and 1½" (38.1 mm) port sizes available; suitable to 300 PSI (20.7 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
4.75
|
8.3
|
3.75
|
11.71
|
13.92
|
14.92
|
5.50
|
1.94
|
2.31
|
.41slot
|
7.66
|
2.93
|
9.61
|
4.21
|
.875
|
3.49
|
6.97
|
|
MM
|
121
|
211
|
95
|
297
|
354
|
379
|
140
|
49
|
59
|
10 slot
|
194
|
74
|
244
|
107
|
22.23
|
89
|
177
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U2 to 030-U2, 1"-11- NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 56 lb. (25.4 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 015-U2 ND
0-1000 RPM speed range. 1½" (38.1 mm) port sizes available; suitable to 250 PSI (17.2 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
4.75
|
8.3
|
3.75
|
11.71
|
13.92
|
14.92
|
5.50
|
1.94
|
2.31
|
.41slot
|
7.66
|
2.93
|
9.61
|
4.21
|
.875
|
3.49
|
6.97
|
|
MM
|
121
|
211
|
95
|
297
|
354
|
379
|
140
|
49
|
59
|
10 slot
|
194
|
74
|
244
|
107
|
22.23
|
89
|
177
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 56 lb. (25.4 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 018-U2 ND
0-700 RPM speed range. 1½" (38.1 mm) and 2" (50.8 mm) port sizes available; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
4.75
|
8.3
|
3.75
|
12.37
|
14.59
|
15.58
|
5.50
|
1.94
|
2.31
|
.41slot
|
7.66
|
2.93
|
9.84
|
4.21
|
.875
|
3.49
|
6.97
|
|
MM
|
121
|
211
|
95
|
314
|
371
|
396
|
140
|
49
|
59
|
10 slot
|
194
|
74
|
250
|
107
|
22.23
|
89
|
177
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 65 lb. (29.5 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 030-U2 ND
0-600 RPM speed range. 1½" (38.1 mm) and 2" (50.8 mm) port sizes available; suitable to 250 PSI (17.2 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
6.25
|
10.29
|
4.25
|
14.49
|
16.49
|
17.58
|
6.86
|
2.31
|
2.56
|
.41slot
|
8.83
|
3.56
|
11.61
|
5.21
|
1.25
|
4.25
|
8.5
|
|
MM
|
159
|
261
|
108
|
368
|
419
|
447
|
174
|
59
|
65
|
10 slot
|
224
|
90
|
295
|
132
|
31.75
|
108
|
216
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 130 lb. (59.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 040-U2 ND
0-600 RPM speed range. 2" (50.8 mm) port size available; suitable to 150 PSI (10 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
6.25
|
10.29
|
4.25
|
14.87
|
16.87
|
17.96
|
6.86
|
2.31
|
2.56
|
.41slot
|
8.83
|
3.56
|
11.99
|
5.21
|
1.25
|
4.31
|
8.62
|
|
MM
|
159
|
261
|
108
|
378
|
428
|
456
|
174
|
59
|
65
|
10 slot
|
224
|
90
|
305
|
132
|
31.75
|
109
|
219
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 140 lb. (64.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 045-U2 ND
0-600 RPM speed range. 2" (50.8 mm) port sizes available; suitable to 450 PSI (31.0 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
8.25
|
15.31
|
5.87
|
18.59
|
20.70
|
22.28
|
9.56
|
3.50
|
4.12
|
.53
|
10.99
|
5.06
|
14.86
|
7.31
|
1.625
|
5.37
|
10.75
|
|
MM
|
210
|
389
|
149
|
472
|
526
|
566
|
243
|
89
|
105
|
13
|
279
|
129
|
377
|
186
|
41.28
|
136
|
273
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 295 lb. (134.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 060-U2 ND
0-600 RPM speed range. 2½" (63.5 mm) port sizes available; suitable to 300 PSI (20.7 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
8.25
|
15.31
|
5.87
|
19.14
|
21.25
|
22.83
|
9.56
|
3.50
|
4.12
|
.53
|
10.99
|
5.06
|
15.14
|
7.31
|
1.625
|
5.37
|
10.75
|
|
MM
|
210
|
389
|
149
|
486
|
540
|
580
|
243
|
89
|
105
|
13
|
279
|
129
|
385
|
186
|
41.28
|
136
|
273
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are "-14 NPT on Models 006-U2 to 030-U2, 1"-11- NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 285 lb. (129.3 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 130-U2 ND
0-600 RPM speed range. 3" (76.2 mm) port sizes available; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
8.25
|
15.31
|
5.87
|
20.15
|
22.27
|
23.84
|
9.56
|
3.50
|
4.12
|
.53
|
10.99
|
5.06
|
15.77
|
7.31
|
1.625
|
5.37
|
10.75
|
|
MM
|
210
|
389
|
149
|
512
|
566
|
606
|
243
|
89
|
105
|
13
|
279
|
129
|
401
|
186
|
41.28
|
136
|
273
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 305 lb. (138.3 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 180-U2 ND
0-600 RPM speed range. 3" (76.2 mm) port sizes available; suitable to 450 PSI (31.0 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
8.50
|
19.13
|
9.00
|
23.26
|
25.32
|
28.51
|
12.38
|
3.75
|
7.25
|
.53 slot
|
14.80
|
6.38
|
18.25
|
9.38
|
2.0
|
6.53
|
13.06
|
|
MM
|
216
|
486
|
2.29
|
591
|
643
|
724
|
314
|
95
|
184
|
13 slot
|
376
|
162
|
464
|
238
|
50.8
|
168
|
337
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 520 lb. (236.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 210-U2 ND
0-600 RPM speed range. 4" (101.6 mm) port sizes available; suitable to 500 PSI (34.5 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
12.00
|
22.38
|
11.63
|
27.08
|
28.58
|
--
|
13.88
|
5.25
|
8.00
|
.66
|
17.80
|
6.88
|
21.24
|
10.38
|
2.375
|
7.37
|
14.73
|
|
MM
|
305
|
568
|
295
|
688
|
726
|
--
|
353
|
133
|
203
|
17
|
452
|
175
|
539
|
264
|
60.45
|
187
|
374
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 915 lb. (415.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 213-U2 ND
0-600 RPM speed range. 4" (101.6 mm) port sizes available; suitable to 500 PSI (34.5 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
12.00
|
22.38
|
11.63
|
27.08
|
-
|
-
|
13.88
|
5.25
|
8.00
|
.66
|
17.80
|
6.88
|
21.24
|
10.38
|
2.375
|
8.62
|
17.25
|
|
MM
|
305
|
568
|
295
|
688
|
-
|
-
|
353
|
133
|
203
|
17
|
425
|
175
|
539
|
264
|
60.45
|
219
|
438
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 915 lb. (415.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 220-U2 ND
0-600 RPM speed range. 4" (101.6 mm) port sizes available; suitable to 300 PSI (20.7 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
8.50
|
19.13
|
9.00
|
24.00
|
26.06
|
29.25
|
12.38
|
3.75
|
7.25
|
.53 slot
|
14.80
|
6.38
|
18.49
|
9.38
|
2.000
|
6.63
|
13.25
|
|
MM
|
216
|
486
|
229
|
610
|
662
|
743
|
314
|
95
|
184
|
13 slot
|
376
|
162
|
470
|
238
|
50.80
|
168
|
337
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 590 lb. (268.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 320-U2 ND
0-600 RPM speed range. 6" (152.4 mm) port sizes available; suitable to 300 PSI (20.7 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
CP4
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
12.00
|
22.38
|
11.63
|
27.66
|
29.16
|
--
|
13.88
|
5.25
|
8.00
|
.66
|
17.80
|
6.88
|
21.63
|
10.38
|
2.375
|
8.00
|
16.00
|
|
MM
|
305
|
568
|
295
|
703
|
741
|
--
|
358
|
133
|
203
|
17
|
452
|
175
|
549
|
264
|
60.45
|
203
|
406
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 895 lb. (406.0 kg.).
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
MODEL 370-U2 ND
0-600 RPM speed range. 6" (152.4 mm) port sizes available; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

|
|
A
|
AO
|
B
|
CP
|
CP1
|
D
|
E
|
F
|
G
|
I
|
J
|
L
|
O
|
U
|
X
|
2X
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
IN
|
12.00
|
22.38
|
11.63
|
29.16
|
30.66
|
13.88
|
5.25
|
8.00
|
.66
|
17.80
|
6.88
|
22.32
|
10.38
|
2.38
|
8.50
|
17.00
|
|
MM
|
305
|
568
|
295
|
741
|
779
|
353
|
133
|
203
|
17
|
452
|
175
|
567
|
264
|
60.5
|
216
|
432
|
CP= Standard Cover, CP1= Jacketed Cover, CP4= Manual Vented Cover, Connection sizes for Jacketed Covers are ¾"-14 NPT on Models 006-U2 to 030-U2, 1"-11-½ NPT on Models 042-U2 to 220-U2.
Dimension 'X' and '2X' apply for Bevel Seat, "S"-Clamp, "Q"-Clamp, 15I and 14I fittings (except 320 U2).
Approximate shipping weight 945 lb. (428.6 kg.)
NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.
Ports
Standard: 150lb flanges standard (with some exceptions, contact factory for details)
- Male NPT available
- S-line available
- Contact factory for available rectangular flange inlets.
- 300# flange available
- Schedule 5 S-line available
- Port extensions available
Rotors
Standard: Twin Wing - Standard
Rotor clearance
Standard: up to 180°F (82°C)
- Hot clearance rotors option for applications up to 300°F (149°C).
- Other special clearances available
O-Rings
Standard: Buna-N
Options:
- Fluoroelastomer (FKM)
- Fluoroelastomer (FKM) - Class 6
- EPDM
- EPDM - Class 6
- Silicone
- Perfluoroelastomer (FFKM)
- Buna-N - Metal Detectable
- FKM - Metal Detectable
- EPDM - Metal Detectable
Cover & Gearcase
Standard: Steel-IT Painted cast iron gearcase
Options:
- Stainless steel gearcase
- Waukesha Blue paint
- Epoxy white paint
- 316L stainless steel shafts
- Lower shaft position
- Bearing Isolators
- Pedestal shims for side mounted pumps. Left hand shaft position standard.
- Right hand shaft position on side mounted gearcase
Tru-Fit®
Close coupled Tru-Fit® pump mounted on stainless steel base with stainless steel adaptors standard.
Features:
- No shaft alignment necessary. No coupling guard required.
- Special base design enhances cleanability.
- Reduces overall length of complete unit by an average of 20-25%.
- Average of 20-25 gear ratios available per horsepower.
- Separate oil sump for gear reducer and timing gears.
Options:
- 304 SS polished plate base.
- NEMA or IEC frames available. Right angle reducer also available for
additional space savings. - 1/2 through 60 horsepower drive options available.
- Horizontal or vertical porting.