.EBARA Pumps

Ebara- 2GPE 3M Industrial booster sets

Ebara- 2GPE 3M Industrial booster sets 

TYPICAL APPLICATIONS


Ebara_2gpe-3m-dimentionThe base of the group is in galvanised steel as are the manifolds. The discharge manifold is set-up to gather any two vertical type membrane reservoirs. Two pressure switches, the electric control panel and a pressure gauge are mounted on it. On suction, each electric pump has
an isolating valve and a non-return valve, with the possibility of connection to an air supply unit and has another isolating valve in discharge mode. The electric control panel is sustained by a relevant support fixed to the base.
TECHNICAL FEATURES
The control panels control pump number one at variable speeds and automatically start any other pumps, allowing to adjust system pressure on constant values. These particulars allow to increase the level of comfort, minimise management costs and reduce all air pre-load
accumulation reservoirs to a minimum.
The typical applications of the GPE range pressure boosters with control panels are:
• Water provisioning for condominium, school, hotel hospital distribution networks etc.
• Water provisioning for industry in general
• Irrigation of gardens, parks and sports fields

FUNCTIONING PRINCIPLES

Ebara_2gpe-3m-Curves• Functioning with PRESSURE-CONTROLLER: the unit responds to the control of the pressure transducer and the speed control via the pump number one inverter, maintaining the system pressure constant
• Double functioning possibility of every pump in AUTOMATIC, MANUAL OR pump EXCLUDED mode
• Pump motors protection against overloads, missing phase over/under voltage
• Pump protection against dry running
• Inverter protection against phase breakdowns, under/over voltage, earth faults, environment overheating
• Functioning of pump number one at variable speed via the inverter; automatic start-up via electro-mechanical contactors of the other pumps
• Automatic switch-over of functioning of pump number one and any other pumps, via electro-mechanical contactors and pressure switches, if the inverter should block
• Automatic switch-over every 24 hours of the powered pumps start-up order via electro-mechanical contactors

 

 

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

 

Ebara - ENR-MONOBLOC CENTRIFUGAL ELECTRIC PUMP

ENR
End suction
MONOBLOC CENTRIFUGAL ELECTRIC PUMP IN COMPLIANCE WITH EN 733
Standardised centrifugal pumps deriving from EN 733 (former DIN 24255)www.ebara.it-public-130419_130906_55_28_enr.pdf

APPLICATIONS

• Suitable for water supply to civil
• Agricultural and industrial plants
• Pressure boosting
• Fire-fighting
• Heating systems and air-conditioning
• Moving industrial liquids
• Refining plants
• Aqueducts and irrigation

TECHNICAL DETAILS

• Strong construction
• Possibility of use in fire-fighting units
• They can be inserted into machinery units for industrial use

PUMP TECHNICAL DATA

img_11_pag_16• Maximum flow rate: 2 000 m3/h
• Maximum pressure: 147 m
• Max. working pressure: 16 bar
• Temperature of the liquid: -20°C ÷ 120°C
• Impeller in cast iron (or bronze)
• Cast iron pump body • Shaft in AISI 420 stainless steel • Mechanical sealing in SiC/Carbon/EPDM

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-GP-Gear pumps

 

 

Ebara-Gear Pumps

Features :

  • Ebara-Gear PumpCompact style and light weight
  • Large capacity with small power input
  • Long life and highly reliability
  • Quick delivery and low price
  • Adjustable    relief valve

 

 

 

 

 

Applications :

  • Supplying oil for machinery
  • Fuel transfer
  • Low pressure transmission
  • Oil burner injection

Detail Ebara Gear pump

 

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-DS-DSF SUBMERSIBLE PUMPS WITH SEMI-OPEN IMPELLER

 

 

Ebara-DS-DSF

Ebara_ds-dsf1SUBMERSIBLE PUMPS WITH SEMI-OPEN IMPELLER FOR CLEAN WATER AND RAINWATER in cast iron

 

APPLICATIONS

• Purification tank drainage
• Rain and spring water drainage
• Water supply

 

TECHNICAL DETAILS

• Efficient semi-open impeller
• Strainer prevents blockages
• Shaft seal upper and lower part (DS)

 

PUMP TECHNICAL DATA

• Maximum temperature of the liquid: 40°C
• Max solids size for passage: 5 mm (50DS)
6 mm (65DS) (40DSF 1.1, 1.8 kW)
7 mm (80DS) (40DSF 5.7 kW)
8 mm (100DS)
10 mm (65DSF)
• Max fibers lenght: 50mm (All DS models)
• Flanges: DN50,DN65,DN80,DN100 (DS)
• DN40, DN65 (DSF)

 

MOTOR TECHNICAL DATA

ebara_ds_curve• 2 poles air-filled dry submersible motor
• Insulation class F (DS)
• Insulation class H (DSF)
• Degree protection :IP68
• 380-415±10%, 50Hz threephase voltage (DS)
230±10%, 50Hz singlephase voltage (DSF)
400/690±10%, 50Hz threephase voltage (DSF)
• Power up to 15,9kW


MATERIALS

• Pump casing, semi-open impeller, elbow in cast iron
• Shaft in AISI 403 (DS) and AISI 420B (DSF)
• Mechanical seal : SiC/SiC/NBR (pump side)
Carbon/Ceramic/NBR (motor side) (from 5,7kW and above for DSF)

 

 

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-GP-GPE Pressure booster units

 

Ebaea-GpePRESSURE BOOSTER UNITS

use of the same.
N.B. By connecting a float or minimum pressure pressure switch to
the control panel (whether for withdrawal from the primary
collection reservoir or from the hydraulic circuit), the most frequent
cause of electric pump breakdown is prevented: the lack of water at
suction.

 

 

FUNCTIONING PRINCIPLE
OF THE PRESSURE BOOSTING UNIT GPE

The GPE unit is designed to function with a pump governed by a
frequency converter “INVERTER” inserted into the electric control
panel and the others with direct intervention.
This unit, thus constructed, allows to maintain constant pressure in
the water network.
On variation of the network pressure, the INVERTER governed pump
varies its own rotation speed, stating the pressure of the set value.
Whenever the water withdrawal should exceed the pump flow rate,
the second pump intervenes directly and, in the meantime, that
governed by the INVERTER goes into regulation mode in order to
keep the water pressure at the set value. This takes place for all of
the pumps making up the unit.
When the withdrawal has been closed, the pump governed by the
INVERTER reaches the minimum rotation value and, after a few
minutes, stops allowing to obtain a large energy saving.
It is possible to have various versions of the GPE units:
• With an individual INVERTER, which governs just one pump, but
different from the previous start-up (Standard EFC Version).
• With multi-inverter, where every pump is controlled by an inverter
(MFC versions and HERTZ TWIN versions).
Contolling a unit via SP EFC control panels
The SP EFC for controlling units with several pumps envision
powering the pump n°1 via inverter in order to modulate
performance of the system depending on the reference signal,
while the other electric pumps are made to work at maximum
nominal speed (about 2900 min-1) wi th inser t ion and
disconnection in sequence on variation of the request.
This implies the presence of two distinct primary electric
circuits:
1st- pump start-up via inverter, 2nd- start-up (direct of deltatriangle)
of the other pumps, by contactors.
The system is governed by the “SYSTEM CONTROLLER” control
unit on the basis of the reference signal, which derives from a
pressure transmitter, flow rate measuring device or other
unified control signal (4÷20 mA passive).
• In the case of water distribution with constant start pressure
(Fig.1) , the cont rol uni t i s connected to the pres sure
transmitter positioned in the discharge manifold of the unit
that will send a proportional signal to the network pressure.
The lower ing of the network pressure, fol lowing water
withdrawal, causes a reduction of the pressure transmitter
signal, which, via the control unit, will control start-up, via
inverter, of the first pump regulating its speed in a way to reestablish
the reference/work pressure. If the flow rate of the
pump is lower than that requested, the network pressure will
tend to decrease and the system will react by increasing the
pump rotation speed. Once the maximum speed of pump n°1

 

DEFINITION AND USE
OF THE PRESSURE BOOSTER UNITS

Ebara-GPE-Curves_1If the public water distribution system is inexistent or insufficient for
correct functioning of the utilities, it is necessary to install a
pressure boosting unit in order to guarantee an acceptable pressure
and amount of water also in the most unfavourable points of use.
The pressure boosting unit is applied every time the pressure must
be increases or where the mains water must be pressurised.
The GPs, EBARA pressure boosting units, are small automatic
systems with 2 or more pumps in parallel, studied and realised
s imply and rel iably to sat i s fy the mos t recur rent pres sure
maintenance requests in the water supply of condominiums, hotels,
centres, offices, schools, auxiliary services in the industrial and
agricultural ambit. They are distinguished for the construction
strength, compactness, high efficiency and silence.
The GP units are set-up for the membrane autoclaves or air pocket
connection.
Start-up of the individual pumps is caused by the activation of
pressure switches, appropriately calibrated via an electric control
panel. In the units controlled with electric control panel with
INVERTER, as well as pressure switches, one of the pumps is started
via the calibration of a pressure transducer.

FUNCTIONING PRINCIPLE
OF THE PRESSURE BOOSTER UNIT GP

Ebara-Gpe-manualIf water is requested, this is initially withdrawn from the autoclave
reservoir, whenever the system is provided.
This consumption of water or, however, the escape of water from
the system, with pumps off, determines the lowering of the
pressure to a value such to trip the closure of the pressure switch
contact with higher calibration, which determines the ignition of
the first electric pump.
If the outlet discharge exceeds the flow rate of a pump, the
pressure continues to drop until it causes the closure of the contact
of the second pressure switch and the start-up of the second pump.
This takes place for all of the electric pumps that make up the unit.
The end of the distribution of the reduction of the outlet discharge
leads to the pressure in the system rising, with opening of the
pressure switch contacts and staggered pumps stops. The inversion
of the ignition order of the motors reduces the number of hourly
start-ups of the individual pumps and consequently a homogenous

 

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-DVS Submersible sewage pumps with semi vortex impeller

 

 

DVS.2Ebara-DVS

SUBMERSIBLE SEWAGE PUMPS WITH SEMI-VORTEX IMPELLER
in cast iron

APPLICATIONS

• Ideal for waste waterapplications containing soft or fibrous solids
• Industrial waste water drainage
• Septic effluent
• Miscellaneous drainage

TECHNICAL DETAILS
• Semi-Vortex Impeller offers non-clog operation and allows pumping of foreign matter up to 70% of discharge size
• Easy maintenance

PUMP TECHNICAL DATA

• Maximum temperature of the liquid: 40°C
• Max solids size for passage: 21 mm (50DVS)
33 mm (65DVS and 80DVS 1,5kW)
41 mm (65DVS and 80DVS 2,2-3,7 kW)
• Max fibers lenght: 100mm (50DVS)
200mm (65DVS and 80DVS 1,5kW)
245mm (65DVS and 80DVS 2,2-3,7 kW)
• Flanges: G1½ (50DVS 1,5kW)
DN50,DN65,DN80

MOTOR TECHNICAL DATA
• 2 poles air-filled dry submersible motor
• Insulation class F
• Degree protection IP68
• 380-415±10%, 50Hz threephase voltage
• Power up to 3,7 kW

MATERIALS
• Pump casing, semi-vortex impeller, elbow in cast iron
• Shaft in AISI 403
• Mechanical seal: SiC/SiC/NBR (pump side)
Carbon/Ceramic/NBR (motor side)
EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-CNA Horizontal Split Case Pumps

 

 

Ebara-CNACurves

Design

A very compact and robust design range of pumps, suitable for many

applications:

  • Industrial, municipal, commercial & agricultural
  • Water supply
  • Hot or cold water circulation
  • Irrigation
  • Cooling towers
  • Drainage

Specifications:

Materials: Cast iron casing, bronze impeller, 316 SS shaft
Shaft seal: Mechanical seal (optional gland packing)
Power used: up to 425 kW
Flow rates: 0.6 to 35 m3/min
Head: 5 to 140m
Outlet size: 100 to 350 mm

 

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-Booster System-2GPE HVM

 

Ebara-Booster System-2GPE HVM

Ebara-2GP-HVM-booster-nasos-stanciyaDomestic booster sets

TYPICAL APPLICATIONS

The base of the group is in galvanised steel as are the manifolds. The discharge manifold is set-up to gather any two vertical type membrane reservoirs. Two pressure switches, the electric control panel and a pressure gauge are mounted on it. On suction, each electric pump has

an isolating valve and a non-return valve, with the possibility of connection to an air supply unit and has another isolating valve in discharge mode.

TECHNICAL FEATURES

The HERTZ TWIN control panel is an automatic control and protection system for two centrifugal pumps equipped with three phase induction motor. The control panel power supply can be three phase or single phase. The HERTZ TWIN control panels include a pump control software and allow regulation of motor speed via an electronic frequency changer (Inverter) that powers the pump motor. On varying the rotation speed, the pump performance varies in terms of flow rate and head, allowing optimal use in every condition and saving energy.

ADVANTAGES

• Energy saving because the controller modulates the pump according to the hydraulic energy request of the plant with respect to a direct connection in the network
• Improved and quicker regulation
• Hammering reduced thanks to gradual start-up and stop
• Improved comfort in the heating, air conditioning and pressure boosting systems
• Reduced peak current
• Exchange at every powered pump re-start
• Speed modulation on both pumps for excellent regulation
The typical applications of the GPE range pressure boosters with controlpanels are:
• Water provisioning for condominium, school, hotel hospital distribution networks etc.
• Water provisioning for industry in general
• Irrigation of gardens, parks and sports centresFor the technical details of HVM pump please the related technical data sheet.
EBARA            GRUNDFOS           KSB          WILO        TSURUMI

EBARA-DL - Submersible Sewage Pumps

 

EBARA-DL Series

Ebara-DL Series

Submersible
SUBMERSIBLE SEWAGE PUMPS (DL) WITH CUTTER (DL W/C)
in cast iron
Submersible sewage pumps (DL) with cutter (DL W/C) in cast iron

APPLICATIONS

• Ideal for waste water applications containing soft or fibrous solids
• Industrial waste water drainage

TECHNICAL DETAILS

• Non-Clog single-channel, open double-channel, no clog semi open impeller prevents
clogging by fibrous matter
• Range of models from 65 to 300 mm discharge size and power
up to 45 kW (DL)

PUMP TECHNICAL DATA

• Maximum temperature of the liquid: 40°C
• Max solids size for passage: 46 mm (65DL, 65DL W/C)
46 mm (80DL, all DLC, 80 DL W/C)
57 mm (100DL, 100DLB, 100DL W/C,
100DLB W/C)
68 mm (150DL up to 22kW)
73 mm (200DL up to 22kW)
76 mm (all models 30÷45 kW)
79 mm (250DL up to 22kW)
88 mm (300DL up to 22kW)
• Max fibers lenght: 195mm (65DL, 65DL W/C)
240mm (80DL, all DLC, 80DL W/C)
300mm (100DL, 100DLB, 100DL W/C)
400mm (150DL from 5,5 up to 45kW)
500mm (200DL up to 45kW)
550mm (250DL up to 45kW)
600mm (300DL up to 45kW)
• Flanges: DN65, DN80, DN100, DN150, DN200, DN250, DN300 (DL)
DN65, DN80, DN100 (DL W/C)


MOTOR TECHNICAL DATA

Ebara-DL-Curves• Air filled dry submersible 4 poles motor
• Insulation class F
• Degree protection IP68
• 380-415±10%, 50Hz (1,5÷7,5kW) (DL and DL W/C) threephase voltage
400-415±10%, 50Hz ( ∆connection11÷2kW) (DL) threephase voltage
380-415±10%, 50Hz (∆connection 30÷45kW) (DL) threephase voltage
• Power up to 45 kW (DL)
up to 7.5kW (DL W/C)

MATERIALS

• Pump casing, impeller with
cutter (DL W/C), vitex impeller (DLC and DLB) , elbow in cast iron
• Shaft in AISI 403
• Mechanical seal: SiC/SiC/NBR (pump side)
Carbon/Ceramic/NBR (motor side)
EBARA            GRUNDFOS           KSB          WILO        TSURUMI

Ebara-MSS/MSSH Ring Section Pumps

 

MSS/MSSH Ring Section Pumps

EBARA_MSS_MSSHMSS/MSSH series pumps are horizontal ,single casing, ring section, multistage structure. With simplified construction, MSS/MSSH can be highly efficient and reliable.

Applications

Boiler feed Processing water supply City high pressure water supply

Ratings

Flow (Q): to 324 m3/h
Maximum allowable operation pressure : to 10MPa.G
Maximum allowable suction pressure: 2.45MPa.G
Temperature range: to 165℃
Applicable transportation medium specific gravity :0.8 and above.

Ebara-MSS_Curves

 

Features

Radially Split Casing
Between Bearing
Wide high efficiency region:
High efficiency and reliability :
Simple structure ,easy maintenance :
Compact ,low -cost : optimized design ,
Short manufacturing term : standardized production

 

 

 

EBARA            GRUNDFOS           KSB          WILO        TSURUMI

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