Product Specification - EBARA DML Instruction Manual

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4

Product specification

For the performance of your pump, refer to the nameplate in terms of total head (HEAD), discharge rate
(CAP.), rated voltage (V), rated current (A), etc.
Warning
Caution
■Standard specification
Liquid property
Liquid temperature
Handling
Size of
liquid
foreign
matter
Max.
(mm)
Max. submersible depth of the pump
Structure
Pump
Material
The user of a standard model shall refer to the columns of standard specification.
Other than the standard model, a modified specification is available as a special
specification on request of the user. Do not use the pump at outside the range of
the specification, such as handling liquid, installing site, and power source.
Operation at outside the specification may cause pump trouble, injury, electric
shock, electric leak, and fire.
Mount a ground fault breaker exclusive to the pump. Recommended one is a
wiring breaker equipped with an electric leak alarm. There is a possibility of
electric shock and fire.
The pump cannot be used for food processing, food transportation, and other
food-relating uses. There is a possibility of generation of various bacteria and of
inclusion of foreign matter.
Do not use the pump at facilities for organisms (fish farm, fish preserve, aquarium,
etc.) There is a possibility of extinction of organisms caused by leak current or by
leakage of enclosed liquid from mechanical seal.
Do not use the pump at an important facility (computer cooling apparatus, cooling
apparatus for refrigerator, etc.)
Since machining oil, rubber-releasing agent, and foreign matter, used in pump-
production line, enter the handling liquid, operation of the pump shall be done
after fully flushing the pump to confirm the absence of foreign matter, depending
on the facility.
Limit the handling liquid to water. Do not handle oil, seawater, organic solvent,
etc., other than water. These liquids cause trouble of pump to result in electric
leak and electric shock.
The pump is a submersible sewage 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.
Install a stand-by pump preparing for an accidentally stop of the operating pump.
There is a possibility of suspension of water supply to stop the facilities.
Liquid containing foreign matter
(PH 5-9, concentration of residual free chlorine: 10mg/L or
less, Concentration of chlorine ion: 200mg/L or less)
0-40°C:Non-automatic type
Diameter
of
- 76 mm (DML)
spherical
- Equivalent to the pump diameter (DMLV)
shape
- 500 mm (DML)
Length
of
- DMLV Ø80 : 400 mm
fibrous shape
- DMLV Ø100 : 500 mm
Refer to Fig.1
Single channel non-clog (DML) – Vortex (DMLV)
Impeller
Shaft seal
Single coil-double mechanical seal
Bearing
Sealed ball-bearing (inside the motor)
Casing
FC200
Impeller
DML :
DMLV : Cast iron: FC200 ( 2,2 ÷ 11 kW)
Shaft seal
SiC/SiC:sliding material at liquid side
Ceramics-carbon: sliding material at motor side
Sealed liquid at
NBR:rubber material
shaft seal
Turbine oil ISO VG 32
Cast iron: FC200 (except for 50Hz 22kW)
Cast iron: FCD400 (for 50Hz 22kW)
Cast iron: FCD400 (15 , 22 kW)
- 6 -
EBARA
Corporation

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