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D8
This operational instruction manual
shall be handed to the user.
EBARA
Submersible Pumps
Model DML
Model DMLV
Instruction Manual
Welcome to the EBARA submersible pump. EBARA fabricated the pump with special care for assuring
safe handling. Since, however, mal-operation of the pump may induce accident, correct use of the pump
referring to the instruction manual is requested.
The Instruction Manual shall be stored at a place allowing ready reference.
The Instruction Manual shall be handed to the user who conducts operation, maintenance, and
inspection of the pump.
Contents
Warning indication ....................................... 2
１
Precautions of safety ................................... 3
２
Introduction .................................................. 5
３
2. Confirmation of nameplate ..................... 5
Product specification .................................... 6
４
Installation .................................................. 7
５
1. Confirmation before installation ............. 7
2. Installation .............................................. 7
3. Electric wiring ......................................... 9
Operation ...................................................11
６
1. Before starting ......................................11
2. Test operation ......................................11
3. Operation .............................................11
(sewage pump)
(vortex pump)
Request
To the personnel of installation works
(page)
Maintenance .............................................. 12
７
1. Daily inspection ................................... 12
2. Regular inspection ............................... 12
3. Precautions during stop-operation ...... 13
5
Troubleshooting ........................................ 14
８
９
Disassembling and Assembling ................ 17
10
Limited Warranty ....................................... 17
11
Repair and after-sale service .................... 18
12
- 1 -
Consumables ...................................... 13
.
...................................................
...........................................
..................................................
EBARA
CF006U-H002 REV.0
(page)
..... 13
16
16
17
Corporation
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Related Manuals for EBARA DML
Summary of Contents for EBARA DML
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Page 1: Table Of Contents
Instruction Manual Request Welcome to the EBARA submersible pump. EBARA fabricated the pump with special care for assuring safe handling. Since, however, mal-operation of the pump may induce accident, correct use of the pump referring to the instruction manual is requested. -
Page 2: Warning Indication
Detail forbidding contents are instructed in or near the symbol by a sketch or a sentence. Compulsory (forceful execution) matter. Detail compulsory contents are instructed by a sketch of a sentence given near the symbol. EBARA - 2 - Corporation... -
Page 3: Precautions Of Safety
If the insulation resistance decreases to 1MΩ or less, immediately cut OFF the power switch, and request the inspection and repair of the pump to the supplier or EBARA There is a possibility of motor burn out, electric shock, and fire. - Page 4 The pump is a submersible sewage (DML) or vortex (DMLV) pump. Do not operate the pump for a long period of time or under vigorous startup-shutdown conditions. Such operations may lead to liquid leak from mechanical seal to induce trouble of the pump within a short period of operation.
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Page 5: Introduction
Rated voltage (Unit: V) Rated output (Unit: kW) Rated current (Unit：A) Rated frequency (Unit：Hz) Maximum ambient temperature (Unit: °C) Number of motor poles Maximum operating depth Class of insulation Company name Fig. 1 Name plate Name plate description EBARA - 5 - Corporation... -
Page 6: Product Specification
- DMLV Ø80 : 400 mm (mm) fibrous shape - DMLV Ø100 : 500 mm Max. submersible depth of the pump Refer to Fig.1 Single channel non-clog (DML) – Vortex (DMLV) Impeller Structure Shaft seal Single coil-double mechanical seal Bearing... -
Page 7: Installation
Apply repair painting at an interval depending on the use environment. Depending on the Note use environment, there may be generated rust at threaded sections, machined sections with rust-proof coating, rust-proofing sections, etc. EBARA - 7 - Corporation... - Page 8 Install a stand-by pump preparing for an accidental stop of the operating pump. Caution There is a possibility of suspension of water supply to stop the facilities. EBARA - 8 - Corporation...
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Page 9: Electric Wiring
(Cable for 4wirees) DELTA STARTING STAR/DELTA STRATING 400V Class 400V Class L2 L3 L2 L3 L2 L3 U1 V1 W1 U1 V1 W1 W2 U2 V2 U1 V1 W1 W2 U2 V2 MOTOR MOTOR MOTOR EBARA - 9 - Corporation... - Page 10 4)Motor Protection (a) Auto-cut (Built-in in 2.2kW motor) Auto-cut will be activated when motor is operated in abnormal conditions such as locked rotor or single phase that result in excess over heating. EBARA - 10 - Corporation...
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Page 11: Operation
Operate the pump at a discharge rate suitable for the facilities. Note (Operation at excessively small or large capacity causes noise and vibration, and consumes unnecessary power.) EBARA - 11 - Corporation... -
Page 12: Maintenance
There is a possibility of electric shock, ignition, or injury caused by abnormal functioning, break, etc. Do not attach parts other than EBARA's standard parts, and do not modify EBARA's standard products. Use of other than the standard parts may result in electric shock, ignition, or injury caused by abnormal functioning or break, or may fail to perform normal functioning. -
Page 13: Precautions During Stop-Operation
3000 DMLV 1100 1780 3380 3550 (Turbine oil ISO VG32) φ170×φ3.1 φ180×φ3.1 φ220×φ3.1 O-ring < mm > For detail of Model, etc. of individual parts, inquiry shall be given to the supplier or EBARA CORP. EBARA - 13 - Corporation... -
Page 14: Troubleshooting
○ Adhesion of foreign matter in suction ○ Remove the foreign matter. opening. ○ Foreign matter clogs the pump. ○ Disassemble the pump to remove the foreign matter. ○ Worn impeller. ○ Replace the impeller. EBARA - 14 - Corporation... - Page 15 ○ Establish the correct rotational direction, Pump vibrates, generating large noise. (refer to ６ -2-2). ○ Pump catches foreign matter. ○ Disassemble the pump to remove the foreign matter. ○ Piping is in resonance mode. ○ Modify the piping. EBARA - 15 - Corporation...
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Page 16: Construction
9 Construction 1. Section drawing : Typical model 100 DML 57.5 BEARING COVER LIFTING HANGER THERMAL PROTECTOR 2※3 849-2 BALL BEARING 849-1 BALL BEARING SHAFT OPPOSITE SIDE BRACKET POWER SIDE BRACKET MOTOR FRAME 811-2 SUBMERSIBLE CABLE 1※2 811-1 SUBMERSIBLE CABLE 2※1... -
Page 17: Accessory
(1) During the warranty period, EBARA will repair the pump free of charge provided that: the trouble is due to shortcomings in design, workmanship, etc., that can be attributed to EBARA, and that the pump was being operated correctly and in a normal manner in accordance with the Instruction Manual when the trouble occurred. -
Page 18: Repair And After-Sale Service
(c) If the trouble is caused by fire, flood, earthquake or other circumstances beyond EBARA’s control. (d) If the trouble is caused by use of parts other than those recommended by EBARA. (e) If the trouble is caused by repair or remodeling of the pump carried out by a party other than EBARA or agent specified by EBARA.