ebara flow switch controlled booster system-20100212101823_td_ud

UD

EBARA FLOW SWITCH CONTROLLED BOOSTER SYSTEM

Ebara Hydro Booster pressure set type UD is a flowswitch control system which prevents frequent start/stop of pumps, thus ensure constant water supply.

ApplicationDomestic : High-rise buildings, Condominiums,

Apartments etc.Commercial : Office buildings, Hotels, Shopping

centres etc.Industrial : High-rise factories, Manufacturing &

Processing industries applicationsetc.

Social Service : Schools, Hospitals etc.

Construction FeaturesFully assembled and certified Hydro Booster unitconsisting of one or two (2) pump arranged in parallel,mounted on a common baseframe, pipework completewith all hydraulically required parts, EBARA Controllerunit, pressure switches and flow switches together withcomplete internal electrical wiring.

Baseframe & Common PipeworkGalvanized pipework to enable easy connection to allcommonly used pipe fittings. The pipework is sizedsuitable for maximum hydraulic unit capacity. Checkvalves and suitable gate valves are fitted for optimalsystem operation.

PumpsSingle or two (2) EBARA pumps arranged for paralleloperation. All parts contact with liquid are of stainlesssteel.

Diaphragm Pressure TankA pre-charged diaphragm tank is fitted to the dischargepipe with a compatible Butyl-rubber diaphragm.Generally this tank serves basic functions of supplyingwater at a very low flow and minimising effect of waterhammering.

Pressure SwitchesThe pressure switch controls start/stop of pumpoperation. Stop-value of pressure switch should be0.6kgf/cm2 higher than pump supply pressure. Startvalue of pressure should be set so that the water supplyappliance at the highest point of building or the mostremote place has sufficient water supply pressure.

Flow SwitchThe primary function of flow switch is to detect low flowcondition, and cut off pump operation during very lowflow condition. This reduces the frequency of on/off pumpto prolong operating life of pumping system.

UD


Flow switchDetects very low flow to cut off No. 1 pump thus reducing frequency of on / off pump at low flow

PumpStainless steel casing and impeller provide rusty-free water supply

Check valveQuick closing action reduces water hammer

Pressure switchesAdjustment type-signal cut-in and cut-out pumps

Pre-charge diaphragm tank

Pressure gaugeIndicator of water pressure

Isolating Valve

Discharge pipeGalvanize pipework provides to enable easy connection

UD - CONTROL SYSTEM

Sup

ply

Pre

ssur

e

Uncontinuouspump operationrange

SingleOperation

Continuous pumpoperation range

Flow switchQ1

P4 P3

P1

P2ParallelOperation

➀

➅

➄

➃

➂

➁

Step 1) Both pumps are stopped when water tank is fully charged. Inthis condition water is supplied from the pressure tank, andwater pressure in tank gradually decreases.

Step 2) No. 1 pump starts at pressure P1 (Point 1 ) and water issupplied from pump (and pressure tank).

Step 3) When more water is required and water pressure decreasesto P2 (Point 2 ), No. 2 pump also starts, operation point shiftsto Point 3 and system shifts to parallel operation.

Step 4) When water consumption decreases, water pressure in tankincreases and when pressure reaches P3 (Point 4 ), No. 2pump is stopped and operation point shifts to Point 5 .

Step 5) When water consumption further decreases, water pressurein tank increases and pressure switch is turned off, and theflow switch used to detect small flow, is turned off. Whenboth pressure and flow switches are off, No. 1 pump stops(Point 6 ). Flow switch setting point is at small capacity point,therefore pump continuous operation range is much wider.Accordingly pump start frequency is greatly decreased.

UD


FlowSwitch

Float

Flow SwitchThe primary function of flow switch is to detect a very lowflow in order to cut off No.1 pump. This reduces thefrequency of on/off pump at low flow. The life of pump isthus prolonged. The fundamental working principle is showngraphically as below.

At a very low flow, the float of the flow switch positions itselfat/almost to its lowest resting position. That is, water pressureforce from pump discharge is equivalent/lesser than theweight of the float. The location of the float sends signal outto trigger No.1 pump to stop.

At higher flow, the float is lifted up by the water pressureforce from pump discharge. Its location is determined by thebalancing act between its own weight and water pressureforce. Signal generates no impact in operation on pump.

UD - CONTROLLED UNIT

The heart of the system is the EBARA controller unit,which is user-friendly and permit ‘One-touch’ operation.It controls the sequence of pump operation with signalsinput from the pressure switch and/or flow switch in Auto& Alternate mode.

EBARA controller unit generally provides the below ‘one-touch’ functioning features:- 1x Selector switch (P1/P2/ALT)- 1x Selector switch (Manual/Auto/Off)- 1x Power incoming indicating light- 2x Pump RUN indicating light- 1x Pump overload indicating light- 1x Alarm (fault) indicating light- 1x Buzzer stop

This user-friendly controller unit operates compatible withother electrical components to ensure smooth functioningof booster system.

Fig. below shows the display of panel board. Two modesof operation are possible, namely manual and auto &alternate.

Various configurations of standard control panel areavailable. It varies from indoor to outdoor, DOL tostar-delta starter and auto transformer type panel.

UD

EBARA FLOW SWITCH CONTROLLED BOOSTER SYSTEM - OPERATION METHOD

Both pumps not operating at

very low flow & small demand.

Water supplies directly from

hydro-pneumatic pressure vessel.

OperationSchematic Diagram System Performance Curve

N/A

At higher flow & higher demand

water pressure in

hydro-pneumatic pressure

vessel decreases to P1 (point 1 ).

No. 1 pressure switch initiates

start of No. 1 pump.

At higher flow & water pressure

decreases to P2 (point 2 ).

No. 2 pressure switch triggers

No. 2 pump to start & system

shifts to parallel operation

(operation point is at point 3 ).

As water consumption

decreases & water pressure

increases to P3 (point 4 ).

No. 2 pressure switch activates

No. 2 pump to stop & operation

shifts to point 5 .

UD








(operation point is at point 3 )






shifts to point 5 .

As water consumption further


increases to P4.

No. 1 pressure switch cut off.

Flow switch triggers No. 1 pump

to stop at very low flow

of Q1 (point 6 ).

Both pumps not operating

at no demand.

N/A

UD



N/A






(operation point is at point 3 ).






shifts to point 5 .

As water consumption further decreases & water pressure

increases to P4.No. 1 pressure switch cut off.

Flow switch triggers No. 2 pumpto stop at very low flow

of Q1 (point 6 ).

Both pumps not operating

at no demand.

As demand increases again &

water pressure in

hydropneumatic pressure

vessel decreases to P1 (point

1 ) No. 1 pressure switch

initiates start of No.2 pump.

UD

ISOMETRIC DRAWING

910

8

7

2

1

3

4 5

6

11 2

10

Discharge Manifold

Check Valve

Gate Valve

Diaphragm Tank

Suction Manifold

Pressure Gauge

Pressure Switch6

8

9

7

Pump

4

5

3

Part Name

Control Panel1

No.

11

UD

SELECTION GUIDE

10.83.60 1.2 2.4

10

0

7.24.8 6 8.4 9.6 m /hr12 14.413.2

40

20

30

50

60

70

CURVES 2 POLES 50 HzUD CDX 70 / 90

3

UD CDX 70-05/0.37

UD CDX 70-07/0.55

UD CDX 90-10/0.75Tota

l H

ead

(m)

Capacity (m3/hr.)

00 3 6 9

10

1512 18 2421 27 30

40

20

30

50

CURVES 2 POLES 50 HzUD CDX 120

60

UD CDX 120-20/1.5

UD CDX 120-07/0.55

UD CDX 120-12/0.9

Capacity (m3/hr.)

Tota

l Hea

d (m

)

UD

SELECTION GUIDE

0

1.20 2.4 4.83.6 6

10

8.47.2 9.6 1210.8

40

20

30

50

60

70

CURVES 2 POLES 50 HzUD 2CDX 70

13.2 14.4

UD 2CDX 70-10/0.75

UD 2CDX 70-12/0.9

UD 2CDX 70-15/1.1

UD 2CDX 70-20/1.5

Tota

l Hea

d (m

)

Capacity (m3/hr.)

00 63 9

10

1512 18 2421 27 3330 36

40

20

30

50

60

70CURVES 2 POLES 50 HzUD CDX 200

UD CDX 200-25/1.8

UD CDX 200-12/0.9

UD CDX 200-20/1.5

Tota

l Hea

d (m

)

Capacity (m3/hr.)

10

0

30 6 129 15 2118 27

40

30

20

60

50

UD 2CDX 120-30/2.2

70

CURVES 2 POLES 50 HzUD 2CDX 120

24 30 33 36

80

UD 2CDX 120-40/3.0

UD 2CDX 120-15/1.1

UD 2CDX 120-20/1.5

Tota

l Hea

d (m

)

Capacity (m3/hr.)

UD

SELECTION GUIDE

18

0

0

10

93 6 12 15 21 2724 30 3633

40

20

30

50

60

80

70

UD 2CDX 200-50/3.7

UD 2CDX 200CURVES 2 POLES 50 Hz

UD 2CDX 200-30/2.2

UD 2CDX 200-40/3.0

Tota

l Hea

d (m

)

Capacity (m3/hr.)

10

1800

159 123 6 3327 3021 24 423936

20

30

40

50

60

80

70

90

UD 3M 32CURVES 2 POLES 50 Hz

100

54

UD 3M 32-125/1.1

UD 3M 32-160/1.5

UD 3M 32-160/2.2

UD 3M 32-200/3.0

UD 3M 32-200/4.0

UD 3M 32-200/5.5

UD 3M 32-200/7.5

Tota

l H

ead

(m)

Capacity (m3/hr.)

UD

SELECTION GUIDE

60

10

24120 6 180

544836 4230

20

30

40

50

60

UD 3M 40

80

70

90

100

CURVES 2 POLES 50 Hz

84 9072 7866

UD 3M 40-160/4.0

UD 3M 40-125/1.5

UD 3M 40-125/2.2UD 3M 40-160/3.0

UD 3M 40-200/5.5

UD 3M 40-200/7.5

UD 3M 40-200/11

Tota

l Hea

d (m

)

Capacity (m3/hr.)

72

10

00

48 60362412

20

30

40

50

60

13210884 96 120 156144

UD 3M 50

80

70


UD 3M 50-160/7.5

UD 3M 50-160/5.5

UD 3M 50-125/4.0

UD 3M 50-125/3.0

UD 3M 50-125/2.2

UD 3M 50-200/11

UD 3M 50-200/9.2

UD 3M 50-200/15

Capacity (m3/hr.)

Tota

l Hea

d (m

)

UD

SELECTION GUIDE

CURVES 2 POLES 50 HzUD 3M 65

50

12090

40

30

20

10

60300

0 300270 330240180 210150

70

60

UD 3M 65-200/15

UD 3M 65-160/15

UD 3M 65-160/11

UD 3M 65-160/7.5

UD 3M 65-125/5.5

UD 3M 65-125/7.5

UD 3M 65-160/9.2

UD 3M 65-125/4.0

UD 3M 65-200/22

UD 3M 65-200/18.5

Capacity (m3/hr.)

Tota

l Hea

d (m

)

UD

SELECTION GUIDE

UD MATRIX 3-8/1.3

UD MATRIX 3-7/1.3

UD MATRIX 3-6/0.9

UD MATRIX 3-5/0.75

UD MATRIX 3-3/0.65

UD MATRIX 3-2/0.45

40

030.60 1.81.2 2.4 4.23.6 4.8 5.4 6.66 7.2 7.8 98.4 9.6

20

10

30


50

60

70

80

UD MATRIX 3

100

90

110

UD MATRIX 3-9/1.5

UD MATRIX 3-4/0.65

Tota

l Hea

d (m

)

Capacity (m3/hr.)

UD MATRIX 5-2/0.45

UD MATRIX 5-3/0.65

UD MATRIX 5-5/1.3

UD MATRIX 5-6/1.3

UD MATRIX 5-7/1.5

UD MATRIX 5-8/2.2

110

90

100

UD MATRIX 5

80

70

60

50


30

10

20

15.614.412 13.210.89.67.2 8.44.82.4 3.60 1.2 60

40

18 19.216.8

UD MATRIX 5-4/0.9

UD MATRIX 5-9/2.2

Tota

l Hea

d (m

)

Capacity (m3/hr.)

UD

SELECTION GUIDE

UD MATRIX 10-6/2.2

UD MATRIX 10-5/2.2

UD MATRIX 10-3/1.3

UD MATRIX 10-2/0.75

40

01530 96 12 2118 24 27 3330 36

20

10

30


50

60

70

80

UD MATRIX 10

UD MATRIX 10-4/1.5

Capacity (m3/hr.)

Tota

l Hea

d (m

)

UD MATRIX 18-2/1.5

UD MATRIX 18-3/2.2

UD MATRIX 18-4/3.0

UD MATRIX 18-5/4.0

UD MATRIX 18CURVES 2 POLES 50 Hz

80

70

60

50

40

30

20

10

666054483624 30 42120 60

18

UD MATRIX 18-6/4.0

Tota

l Hea

d (m

)

Capacity (m3/hr.)

0

Tota

l H

ead

(m)

9

120

100

140

UD-EVM3

4.5

20

40

60

80

31.5 6 7.50

160

UD EVM 9N5/1.1

UD EVM 11N5/1.1

UD EVM 6N5/0.75

UD EVM 7N5/0.75

UD EVM 3N5/0.37

UD EVM 4N5/0.55

UD EVM 5N5/0.55

UD EVM 2N5/0.37

Capacity (m3/hr.)

UD

SELECTION GUIDE

60

40

20

7.5

UD-EVM5

140

100

120

15

Tota

l H

ead

(m)

0

UD EVM 5N5/1.1

80

10 2.552.50

160

UD EVM 10N5/2.2

UD EVM 6N5/1.1

UD EVM 7N5/1.5

UD EVM 8N5/1.5

UD EVM 3N5/0.55

UD EVM 4N5/0.75

UD EVM 2N5/0.37

Capacity (m3/hr.)

80

60

40

20

15

UD-EVM10

140

100

120

30

Tota

l H

ead

(m)

0 105 20 250

160

UD EVM 10N5/4.0

UD EVM 8N5/3.0

UD EVM 5N5/2.2

UD EVM 6N5/2.2

UD EVM 3N5/1.1

UD EVM 2N5/0.75

UD EVM 4N5/1.5

Capacity (m3/hr.)

UD

SELECTION GUIDE

0

Tota

l H

ead

(m)

48

120

100

UD-EVM18

24

20

40

60

80

168 32 40

140

0

160

Capacity (m3/hr.)

UD EVM 7F5/7.5

UD EVM 2F5/2.2

UD EVM 5F5/5.5

UD EVM 6F5/5.5

UD EVM 3F5/3.0

UD EVM 4F5/4.0

120

80

60

100

120

140

0

20

40

Tota

l Hea

d (m

)

UD-EVM45

60 80 1004020

160

0

Capacity (m3/hr.)

UD EVM 2-0F5/7.5

UD EVM 3-2F5/11

UD EVM 3-0F5/11

UD EVM 5-0F5/18.5

UD EVM 4-0F5/15

UD EVM 5-2F5/18.5

UD EVM 4-2F5/15

UD EVM 1-1F5/3.0

UD EVM 1-0F5/4.0

UD EVM 2-2F5/5.5

UD

SELECTION GUIDE

80

60

40

20

42

UD-EVM32

140

100

120

84

Tota

l H

ead

(m)

0 2814 46 700

160

UD EVM 1-0F5/2.2

UD EVM 2-2F5/3.0

UD EVM 2-0F5/4.0

UD EVM 3-3F5/5.5

UD EVM 3-0F5/5.5

UD EVM 4-3F5/7.5

UD EVM 4-0F5/7.5

UD EVM 5-3F5/11

UD EVM 5-0F5/11

Capacity (m3/hr.)

UD

SELECTION GUIDE

84

UD-EVM64

Tota

l Hea

d (m

)

40

20

0

120

100

60

80

168

10

30

50

70

90

110

5628 112 1400

UD EVM 4-3F5/18.5

UD EVM 4-2F5/18.5

UD EVM 4-1F5/22

UD EVM 3-1F5/15

UD EVM 3-0F5/18.5

UD EVM 3-2F5/15

UD EVM 2-0F5/11

UD EVM 3-3F5/15

UD EVM 2-1F5/11

UD EVM 1-1F5/4.0

UD EVM 1-0F5/5.5

UD EVM 2-2F5/7.5

Capacity (m3/hr.)

UD

DIMENSIONAL DRAWING UD SYSTEM (CDX)

UD-2 x CDX 200 450 1525 1030 860 350 250 180 18 NPT

Dmm

Wmm

Hmm

L1mm

L2mm

L3mm

Emm

Fmm

TANKLITER

PIPECONNECTION

DIMENSION

MODEL

CDX PUMPVIEW X

SUCTION

DISCHARGE

HYDRO BOOSTER

MAN OFF AUTO

No. 1 ALT No. 2

No. 1 PUMPRUN

No. 2 PUMPRUN

OVERLOAD ALARM

BZSTOP

L1

L2

TANK

H

`X'

TANK

L3

D W

50 NPT

50 NPT

50 NPTSUCTION

DISCHARGE50 NPT

F E

75

DIMENSIONAL DRAWING UD SYSTEM (MATRIX)

UD

UD-2 x MATRIX 3/5/10 200 450 1525 1030 860 350 250 180 18 50 NPT

UD-2 x MATRIX 18 200 450 1525 1080 910 350 250 180 24 75 NPT

Dmm

Wmm

Hmm

L1mm

L2mm

L3mm

Emm

Fmm

TANKLITER

PIPECONNECTION

DIMENSION

MODEL

MATRIX PUMPVIEW X

SUCTION

DISCHARGE

HYDRO BOOSTER

MAN OFF AUTO

No. 1 ALT No. 2

No. 1 PUMPRUN

No. 2 PUMPRUN

OVERLOADALARM

BZSTOP

L1

L2

TANK

H

`X'

TANK

L3

D W

SUCTION

DISCHARGE

F E

100

DIMENSIONAL DRAWING UD SYSTEM (3M 32)

UD

UD-2 x 3M32 200 550 1525 1200 920 440 250 210 24 FLANGE

Dmm

Wmm

Hmm

L1mm

L2mm

L3mm

Emm

Fmm

TANKLITER

PIPECONNECTION

DIMENSION

MODEL

L1

H

L2

3M PUMP VIEW X

SUCTION

DISCHARGE

HYDRO BOOSTER

MAN OFF AUTO

No. 1 ALT No. 2

No. 1 PUMP RUN

No. 2 PUMP RUN

OVERLOAD ALARM

BZ STOP

TANK TANK

`X'

D W

L3

DN 50

DN 65

75

F E


UD

UD-2 x 3M40 200 550 1525 1460 1050 500 310 250 24 FLANGE

Dmm

Wmm

Hmm

L1mm

L2mm

L3mm

Emm

Fmm

TANKLITER

PIPECONNECTION

DIMENSION

MODEL

L1

H

L2

3M PUMP VIEW X

SUCTION

DISCHARGE

HYDRO BOOSTER

MAN OFF AUTO

No. 1 ALT No. 2

No. 1 PUMP RUN

No. 2 PUMP RUN

OVERLOAD ALARM

BZ STOP

TANK TANK

`X'

D W

L3

DN 50

DN 80

100

F E


UD

UD-2 x 3M50 200 550 1525 1460 1050 500 310 250 24 FLANGE

Dmm

Wmm

Hmm

L1mm

L2mm

L3mm

Emm

Fmm

TANKLITER

PIPECONNECTION

DIMENSION

MODEL

L1

H

L2

3M PUMP VIEW X

SUCTION

DISCHARGE

HYDRO BOOSTER

MAN OFF AUTO

No. 1 ALT No. 2

No. 1 PUMPRUN

No. 2 PUMPRUN

OVERLOAD ALARM

BZSTOP

TANKTANK

`X'

D W

L3

DN 65

DN 80

100

F E


UD

UD-2 x 3M65 200 550 1525 1460 1050 500 310 250 24 FLANGE

Dmm

Wmm

Hmm

L1mm

L2mm

L3mm

Emm

Fmm

TANKLITER

PIPECONNECTION

DIMENSION

MODEL

L1

H

L2

3M PUMP VIEW X

SUCTION

DISCHARGE

HYDRO BOOSTER

MAN OFF AUTO

No. 1 ALT No. 2

No. 1 PUMP RUN

No. 2 PUMP RUN

OVERLOAD ALARM

BZ STOP

TANK TANK

`X'

D W

L3

DN 80

DN 100 10

0

F E

DIMENSIONAL DRAWING UD SYSTEM (EVM)

UD

SUCTIONMANIFOLD

mm

2UD-EVM 3 400 700 350 1525 1030 880 18 50 50 NPT

2UD-EVM 5 400 700 350 1525 1030 880 18 50 50 NPT

2UD-EVM 10 420 720 350 1525 1100 1040 24 65 65 NPT

2UD-EVM 18 420 720 350 1525 1245 1040 24 80 80 FLANGE

2UD-EVM 32 440 740 400 1525 1755 1360 100 100 100 FLANGE

2UD-EVM 45 440 740 400 1525 1860 1530 100 150 150 FLANGE

2UD-EVM 64 440 740 400 1525 1860 1530 100 150 150 FLANGE

B1mm

B2mm

B3mm

Hmm

L1mm

L2mm

TANKLITER

DISCHARGEMANIFOLD

mm

PIPECONNECTION

DIMENSION

MODEL

STOP BZ

ALARM

RUN No.2 PUMP No.1 PUMP

RUN

OVERLOAD

No.1 No.2 ALT

MAN AUTO OFF

VIEW `X' EVM PUMP

TANK

SUCTION

DISCHARGE

TANK

L2

HYDRO BOOSTER

H

L1

`X'

B3

B1 B2

100

ebara flow switch controlled booster system-20100212101823_td_ud

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