Japanese Technology since 1912

DWO Data Book 60Hz

CENTRIFUGAL PUMPS DWO
CONTENTS 60Hz
Rev. G

Page

- SPECIFICATIONS 200
PERFORMANCE RANGE and SELECTION CHART 201
TYPE KEY and CURVES SPECIFICATIONS 202
PERFORMANCE CURVES DWO 1506 203
PERFORMANCE CURVES DWO 2006 203
PERFORMANCE CURVES DWO 3006 203
PERFORMANCE CURVES DWO 4006 203

- CONSTRUCTIONS 300
SECTIONAL VIEW DRAWING 300
SECTIONAL VIEW TABLE 301
MECHANICAL SEAL 302
BEARINGS 303

- DIMENSIONS and WEIGHT 400

PUMP SINGLE PHASE DWO 1506/2006 400
PUMP THREE PHASE DWO 1506/2006/3006/4006 401
GEOMETRIC TOLERANCES 402
PACKING 403

- TECHNICAL DATA 500

MOTOR DATA 500

100

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CENTRIFUGAL PUMPS DWO
SPECIFICATIONS 60Hz
Rev. G

PUMP
Type of liquid Clean water
min. -5
Liquid max. +90 (Standard mechanical seal)
Handled Temperature [°C] max. +110 (Optional and Q1AVGG mechanical seal)
max. +120 (VAEGG, Q1U3EGG, U3BEGG mechanical
seal)
Maximum working pressure [MPa] 0.8
Impeller Open centrifugal type
Construction Shaft seal type Mechanical seal
Bearing Sealed ball bearing
Pipe Suction [inch] G 2 (G2½ for DWO 3006-4006) UNI ISO 228
Connection Discharge [inch] G 2 UNI ISO 228
Casing EN 1.4301 (AISI 304)
Impeller EN 1.4301 (AISI 304)
Casing cover EN 1.4301 (AISI 304)
Material
Shaft seal Ceramic/Carbon/NBR (for version see page 301)
Shaft EN 1.4301 (AISI 304) (wet extension)
Bracket Aluminium
Applicable standard of test ISO 9006:2012 - Grade 3B

MOTOR
Electric - TEFC
Type
Single Phase Three Phase
- from 1.1 up to 3.0 kW
Efficiency Level -
IE3* from 1.1 up to 3.0 kW (* only for 460V)
No. of Poles 2
-1
Rotation speed [min ] ≈ 3450
Insulation Class F
Protection degree (CEI EN 60034-5) IP 55
[kW] 1.1 ÷ 1.5 1.1 ÷ 3
Power rating
[HP] 1.5 ÷ 2 1.5 ÷ 4
Frequency [Hz] 60
220/380 ±10% (from 1.1 up to 3.0 kW)
Voltage [V] 220-230 ±6%
220/380-460 ±10% (IE3* from 1.1 up to 3.0 kW)
Capacitor Built in -
Over load protection Built in Provided by the user
Casing material Aluminium
Base material / Motor support Aluminium
PG 11 - PG 13.5 - G 3/8 – M20x1.5
Dimensions of cable entry
(see page 400)

*only for 460 V

200

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CENTRIFUGAL PUMPS DWO
PERFORMANCE RANGE and SELECTION CHART 60Hz
Rev. G

PERFORMANCE RANGE

SELECTION CHART
Q=Capacity
Pump type Pow er
l/min 0 100 200 300 400 600 800 950 1100
m³/h 0 6 12 18 24 33 42 57 66
Single Phase Three Phase [kW] [HP]
H=Total manometric head in meters
DWO 1506 M DWO 1506 1,1 1,5 10,5 10,3 9,7 8,5 7,0 3,5 - - -
DWO 2006 M DWO 2006 1,5 2 13,8 13,5 12,9 12 10,7 7,8 4,4 - -
- DWO 3006 2,2 3 15,8 15,5 15 14,2 13,1 10,5 7,5 4,9 -
- DWO 4006 3,0 4 19 18,6 18 17,3 16,5 14,5 11,9 9,7 7,2

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CENTRIFUGAL PUMPS DWO
TYPE KEY and CURVES SPECIFICATIONS 60Hz
Rev. G

TYPE KEY
DWO H 150 6 M Q1AVGG
Q1AVGG
AQ1EGG
SPECIAL MECHANICAL SEALS VAEGG
Q1U3EGG
U3BEGG

ONLY SINGLE PHASE

60 Hz MODEL

150 HP 1.5
POWER CODE 200 HP 2.0
300 HP 3.0
400 HP 4.0

H
MECHANICAL SEAL HS
HW
HSW
MODEL

CURVES SPECIFICATIONS

The specifications below qualify the curves shown on the following pages.

Tolerances according to ISO 9006:2012 - Grade 3B.

The curves refer to effective speed of asynchronous motors at 60 Hz, 2 poles.
Measurements were carried out with clean water at 20°C of temperature and with a kinematic viscosity
2
of ν = 1 mm /s (1 cSt)
The continuous curves indicate the recommended working range. The dotted curve is only a guide.
In order to avoid the risk of over-heating, the pumps should not be used at a flow rate below 10% of best
efficiency point.

Symbols explanation:

Q = volume flow rate

H = total head

202

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CENTRIFUGAL PUMPS DWO
PERFORMANCE CURVES 60Hz
Rev. G

DWO 1506 (1.1 kW) - Impeller diameter = 88 mm

DWO 2006 (1.5 kW) - Impeller diameter = 88 mm
DWO 3006 (2.2 kW) - Impeller diameter = 118 mm
DWO 4006 (3 kW) - Impeller diameter = 118 mm

-1
Rotation speed ≈ 3400 min
Test standard: ISO 9006:2012 - Grade 3B

203

EBARA Pumps Europe S.p.A.

CENTRIFUGAL PUMPS DWO
CONSTRUCTIONS 60Hz
Rev. G

SECTIONAL VIEW DRAWING

300

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CENTRIFUGAL PUMPS DWO
CONSTRUCTIONS 60Hz
Rev. G

SECTIONAL VIEW TABLE

N° PART NAME MATERIAL DIMENSIONS STANDARD Q.TY

1 Casing EN 1.4301 (AISI 304) 1
3 Motor bracket Aluminium 1
4 Casing cover EN 1.4301 (AISI 304) 1
6 Shaft with rotor EN 1.4301 (AISI 304) wet extension 1
7 Impeller EN 1.4301 (AISI 304) 1
11 Mechanical seal [4] Carbon/Ceramic/NBR 1
12 Motor frame with stator - 1
13 Motor cover Aluminium 1
14 Fan PP 1
15 Fan cover Fe P04 Zincate 1
16 Terminal box - 1
17 Terminal box cover [2] Aluminium 1
18 Splash ring NBR 40x17.5x3 1
19 Pump side ball bearing [5] - 1
20 Fan side ball bearing [5] - 1
21 Adjusting ring Steel C70 1
22 Tie rod Fe 420 Zincate EBARA drawing 4
23 Capacitor [1] - 1
24 Priming plug EN 1.4305 (AISI 303) 1
25 Drain plug EN 1.4305 (AISI 303) 1
26 O-ring [3] NBR/FPM/EPDM 148.8x3.53 1
30 Mechanical seal protection EN 1.4301 (AISI 304) 1
32 Key EN 1.4401 (AISI 316) 5x5x15 UNI 6604 1
34 Impeller nut EN 1.4301 (AISI 304) M10x1.25 UNI 7474 1
42 Motor support Aluminium 1
50 Spacer - 1
52 Terminal box [1] PP 1
56 Box gasket NBR 1
75 Washer EN 1.4301 (AISI 304) 1
76 Washer EN 1.4301 (AISI 304) 1
77 O-ring [3] NBR/FPM/EPDM 13.1x2.62 OR 117 1
78 O-ring [3] NBR/FPM/EPDM 13.1x2.62 OR 117 1
90 Terminal box cover gasket [1] NBR 171.12X2.62 1
92 Lip seal - 18x40x7 1
93 Lip seal - 1
110 Protector [1] - 1
200 Screw Stainless steel A2 UNI7323 6

[1] Only for Single phase

[2] Only for Three phase
[3] FPM for H-HS-HW-HSW-Q1AVGG (see pages 302, 303)
EPDM for AQ1EGG-VAEGG-Q1U3EGG-U3BEGG (see pages 302, 303)
NBR only for Standard version (see pages 302, 303)
[4] See MECHANICAL SEAL pages 302, 303
[5] See BEARINGS page 303

301

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CENTRIFUGAL PUMPS DWO
CONSTRUCTIONS 60Hz
Rev. G

MECHANICAL SEAL

REF PART NAME MATERIAL

A Rotary seal ring Ceramic

B Stationary seal ring Carbon graphite
STANDARD C O-ring NBR
D O-ring NBR
E O-ring NBR
F Self driving spring AISI 316
G Frame AISI 304

MATERIAL
REF PART NAME
H HS HW HSW
A Rotary seal ring Ceramic Silicon carbide Tungsten carbide Silicon carbide
B Stationary seal ring Carbon graphite Silicon carbide Tungsten carbide Tungsten carbide
OPTIONAL C O-ring FPM FPM FPM FPM
D O-ring FPM FPM FPM FPM
E O-ring FPM FPM FPM FPM
F Self driving spring AISI 316 AISI 316 AISI 316 AISI 316
G Frame AISI 304 AISI 316 AISI 316 AISI 316

MATERIAL
REF PART NAME
Q1AVGG VAEGG Q1U3EGG U3BEGG
A Rotary seal ring Silicon carbide Ceramic Silicon carbide Tungsten carbide
B Stationary seal ring Metallized carbon Metallized carbon Tungsten carbide Graphite
SPECIAL C O-ring FPM EPDM EPDM EPDM
D O-ring FPM EPDM EPDM EPDM
E O-ring FPM EPDM EPDM EPDM
F Self driving spring AISI 316 AISI 316 AISI 316 AISI 316
G Frame AISI 316 AISI 316 AISI 316 AISI 316

302

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CENTRIFUGAL PUMPS DWO
CONSTRUCTIONS 60Hz
Rev. G

MECHANICAL SEAL

MATERIAL
REF PART NAME
AQ1EGG
A Rotary seal ring Metallised carbon
B Stationary seal ring Silicon carbide
SPECIAL C O-ring EPDM
D Bellows EPDM
E Frame + spring AISI 316

BEARINGS
Pump type Ball Bearing
Pump side Fan side
Single Phase Three Phase (*) (*)
DWO 1506 M DWO 1506 6204 2RSH 6204-ZZ C3 6203 2RSH 6203-ZZ C3
DWO 2006 M DWO 2006 6204 2RSH 6204-ZZ C3 6203 2RSH 6203-ZZ C3
- DWO 3006 6305 2RS1 6305-ZZ C3 6205 2RSH 6205-ZZ C3
- DWO 4006 6305 2RS1 6305-ZZ C3 6205 2RSH 6205-ZZ C3

(*) Only for IE3 Motors

303

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CENTRIFUGAL PUMPS DWO
DIMENSIONS and WEIGHT 60Hz
Rev. G

PUMP

SINGLE PHASE
DWO 1506/2006

Pump type Weight [kgf]

DWO 1506 13,6

DWO 2006 15,7

400

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CENTRIFUGAL PUMPS DWO
DIMENSIONS and WEIGHT 60Hz
Rev. G

PUMP

THREE PHASE
DWO 1506/2006/3006/4006

Dimension [mm] Weight [kgf]

Pump type B C H3 R P V DNA
[3~] [3~] [3~] [3~] [3~]
(*) (*) (*) Ø (*) [3~] (*)
DWO 1506 365 390 197 197 239 239 74 62.5 PG11 M20x1.5 G2 14.6 15.5
DWO 2006 378 390.5 197 197 239 239 74 62.5 PG11 M20x1.5 G2 16.4 17.3
DWO 3006 416 394.5 230/241 197 244 239 78 80 PG13.5 M20x1.5 G 2½ 19.2 19.2
DWO 4006 455 455 230/241 230/241 244 244 78 80 PG13.5 M20x1.5 G 2½ 22.3 22.3

[3~] Three phase

(*) Only for IE3 Motors

401

EBARA Pumps Europe S.p.A.

CENTRIFUGAL PUMPS DWO
DIMENSIONS and WEIGHT 60Hz
Rev. G

GEOMETRIC TOLERANCES

402

EBARA Pumps Europe S.p.A.

CENTRIFUGAL PUMPS DWO
DIMENSIONS and WEIGHT 60Hz
Rev. G

PACKING

Pump type Packing [mm] Weight [kgf]

X Y Z [1~] [3~]
Single Phase Three Phase
[1~] [3~] [1~] [3~] [1~] [3~] (*)
DWO 1506 M DWO 1506 205 205 280 280 432 432 14.5 15.4 16.3
DWO 2006 M DWO 2006 205 205 280 280 432 477 16.3 17.3 18.2
- DWO 3006 - 205 - 280 - 477 - 21.2 21.2
- DWO 4006 - 205 - 280 - 477 - 23.1 23.1

[1~] Single phase

[3~] Three phase
(*) Only for IE3 Motors

403

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CENTRIFUGAL PUMPS DWO
TECHNICAL DATA 60Hz
Rev. G

MOTOR DATA

Capacitor Efficiency (% load) Efficiency (% load) Input Full load current Locked rotor current
Pump type Power Efficiency
Three phase (380 V) Three phase (460 V) [kW] [A] [A]
Single Three Single Phase η% η% Single Three Single Phase Three Phase Single Phase Three Phase
Single Phase Three Phase [kW] [HP]
Phase Phase [µF] [V] 50% 75% 100% 50% 75% 100% Phase Phase 220-230 V 220 V 380 V 460 V 220-230 V 220 V 380 V 460 V
DWO 1506 M DWO 1506 1,1 1,5 - - 35 450 78,3 80,4 81,0 - - - 1,5 2,00 7,2 5,7 3,3 - 55,0 38,8 22,4 -
- DWO 1506 1,1 1,5 - IE3* - - 84,2 84,7 84,5 83,2 84,7 85,7 - 1,75 - 5,3 3,1 2,9 - 40,2 23,2 28,1
DWO 2006 M DWO 2006 1,5 2,0 - - 35 450 82,4 83,0 82,2 - - - 2,06 2,90 9,8 8,1 4,7 - 69,0 54,4 31,4 -
- DWO 2006 1,5 2,0 IE3* - - 86,5 86,8 86,2 86,9 87,8 87,4 - 2,48 - 7,5 4,3 4,1 - 55,7 32,2 38,9
- DWO 3006 2,2 3,0 - - - - 80,5 83,3 83,5 - - - - 2,90 - 7,0 4,1 - - 61,5 35,5 -
- DWO 3006 2,2 3,0 IE3* 86,5 86,8 86,2 86,9 87,8 87,4 - 2,48 - 7,5 4,3 4,1 - 55,7 32,2 38,9
- DWO 4006 3,0 4,0 - - - - 84,0 85,9 85,2 - - - - 3,90 - 10,5 6,1 - - 92,1 53,2 -
- DWO 4006 3,0 4,0 - IE3* - - 86,8 87,0 87,5 87,0 87,9 88,5 - 3,42 - 10,2 5,9 5,6 - 75,7 43,7 52,8

*only for 460V

500

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