PERFECT WATER PRESSURE JUST WHEN YOU NEED IT

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PERFECT WATER PRESSURE

JUST WHEN YOU NEED IT

QUICK

SELECTION GUIDE

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Grundfos cannot be held responsible for wrong sizing based on this guide. Any questions about selection or sizing contact us any time or go to grundfos.ca. DN001027_0622

PRESSURE BOOSTING - PUMP SELECTION

Use the table below to select the best Grundfos pump for any type of water supply task.

Once you’ve settled on a pump model, use the corresponding sizing guide to get the perfect fit.

Good Better Best

Boosting from roof tank

Boosting from tank

Boosting from mains

SCALA2

SCALA2 SCALA1

SCALA1

SCALA1 CME BOOSTER

Jet pump

POSITIVE INLET PRESSURE (down to 3.2 ft below ground level)

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PRESSURE BOOSTING - PUMP SELECTION

Use the table below to select the best Grundfos pump for any type of water supply task.

Once you’ve settled on a pump model, use the corresponding sizing guide to get the perfect fit.

Good Better Best

Boosting in well, tank or borehole with a depth of more

than 26 ft SQ SQE CONSTANT

PRESSURE PACKAGE Boosting from well

or tank with a depth of less than 26 ft

SCALA2

SBA

DRY INSTALLED

SUBMERGED

Jet pump SCALA1

NEGATIVE INLET PRESSURE

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PRESSURE BOOSTING - QUICK SIZING

Floors\Taps 1-5 6-10 11-20

4 SCALA2 3-45 — —

3 SCALA2 3-45 SCALA2 3-45 —

2 SCALA2 3-45 SCALA2 3-45 —

1 SCALA2 3-45 SCALA2 3-45 SCALA2 3-45

CMBE

CMBE TWIN (Duty/Assist)

SCALA2

· All-in-one design

· Dry-run protection

ADJUSTABLE CONSTANT PRESSURE LEVEL

Tapping point

Ex. sizing and selection

1. Required comfort level:

- Adjustable contant pressure 2. Find the right booster:

- How many taps: 6 taps - How many floors: 3 floors 3. Result: CMBE 1-44

Taps 1-5 6-10

Floors

4 CMBE 1-75 CMBE 1-75

3 CMBE 1-44 CMBE 1-44

2 CMBE 1-44 CMBE 1-44

1 CMBE 1-44 CMBE 1-44

Floors\Taps 1-5 6-10 11-20 21-50

4 CMBE 1-75 CMBE 3-62 CMBE 5-62 —

3 CMBE 1-44 CMBE 3-62 CMBE 5-62 —

2 CMBE 1-44 CMBE 3-62 CMBE 5-62 —

1 CMBE 1-44 CMBE 3-30 CMBE 3-30 —

Floors\Taps 1-5 6-10 11-20 21-50

4 — — — CMBE TWIN 5-62

3 — — — CMBE TWIN 5-62

2 — — — CMBE TWIN 5-62

1 — — — CMBE TWIN 5-31

CMBE 1-44

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SCALA1

· All-in-one booster

· Water on demand

· Self-priming

Floors\Taps 1-5 6-10 11-20 21-50

4 SCALA1 3-45* SCALA1 5-55 — —

3 SCALA1 3-45 SCALA1 3-45 SCALA1 5-55 —

PRESSURE BOOSTING - QUICK SIZING

CONVENTIONAL PUMP CONTROL

PRECONDITIONS

SCALA1 TWIN (Duty/Assist)

· Easy solution for twin-booster

· Easy installation

· Enabled for Grundfos GO Remote

Floors\Taps 1-5 6-10 11-20 21-50

4 — — SCALA1 TWIN 5-55 SCALA1 TWIN 5-55

3 — — — SCALA1 TWIN 5-55

2 — — — SCALA1 TWIN 5-55

1 — — — SCALA1 TWIN 5-55

1-5 taps/

8.8-13.2 gpm/

(2-3 m³/h)

6-10 taps/

13.2-17.6 gpm (3-4m³/h)

JP PS 13 03 137 •

JP PS 16 05 154 •

JP PS 16 07 177 •

JP PS 16 10 187 •

Jet pump

· Easy to install

· Self-priming

· Robust design

• 3 bar (44 psi) tap pressure is considered, to achieve 4 bar (58 psi) pressure add 2 more floors • Flooded Suction • 0,5 l/s (8 gpm) per tap average, usage pattern is taken into account

Application Recommended pump

One-storey house

For toilet flushing, washing machine, car washing and garden watering SBA 3-35 Two-storey house

For toilet flushing, washing machine, car washing and garden watering SBA 3-45

SBA

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GROUNDWATER - QUICK SIZING - PUMP

FLOW SIZING

HEAD SIZING

PUMP SELECTION

Kitchen sink Dish washer, washing machine

Toilet w.

wash basin and WC

Bathroom w.

wash basin, WC and shower

Bathroom w.

wash basin, WC and bathtub

Garden and lawn irrigation

Nominal [ftflow³/h]

Recommended pump size

Small house 1 1 5 5 SQ

Medium house 1 2 1 1 5 5 SQ

Large house 2 2 1 1 2 10 10 SQ

2 x large house 15 15 SQ

3 x large house 22 22 SQ

SQ

· Compact design

· Built-in motor protection

· Easy installation

Level of highest taping point

Level of house floor level Level of well head

Dynamic water level

C (16.4 ft)

B (16.4 ft)

A (65.6 ft)

Calculate max. pressure required

1. Pressure (H) at the tap requiring max. pressure = X 2. Static head (A + B + C) = Y

3. Pressure loss from friction in pipes and fittings = Z H_total = X + Y + Z

Example of calculation

1. Pressure at the tap (max pressure ): 43.5 psi = 100.5 ft 2. Static head: 65.6 ft + 16.4 ft + 16.4 ft = 98.4 ft 3. Pressure loss from friction in pipes and fittings:

9 ft + 5 ft = 14 ft Maximum pressure required:

H_total = 100.5 ft + 98.4 ft + 14 ft =212.9 ft Pressure loss from friction in pipes and fittings.

Outside the house: plastic pipe, Ø25, length 144.3 => 32.8 ft Inside the house => 16.4 ft

Pump choice 10 SQ07-200 Medium house

=> Nominal flow 10 gpm => Pump size 10 SQ Example of flow sizing

6464(FXUYHFKDUWV

6464(&8DQG63

6464(

70

0 1 2 3 4 5 6 7 8 9 10 11 12 13 Q [US GPM]

0 50 100 150 200 250 300 350 400 450 500 550 [ft]H

0 20 40 60 80 100 120 140 160 [m]H

10 SQ

ISO 9906 Annex A10 SQE

-330

-290

-240

-200

-160

-110

0 1 2 3 4 5 6 7 8 9 10 11 12 13 Q [US GPM]

0 10 20 30 [ft]H

0 4 8 [m]H

0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2Q [m³/h]

NPSH

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GROUNDWATER - QUICK SIZING - CABLE

Motor rating Copper wire size (AWG)

Volts Hp Amps 14 12 10 8 6 4 2

115 0.5 12 110 220 260 550 880 1390 2260

230 0.5 5.2 640 1000 1660 2250 4060 - -

230 0.75 8.4 400 620 1030 1580 2510 3970 -

230 1 11.2 30 460 770 1190 1890 2980 4850

230 1.5 12 280 430 720 1110 1760 2780 4530

How to select the cross-sectional area of the individual wire of a submersible drop cable

1. Select SQ pump incl. motor size 2. Required total length of cable (D + E + F) 3. Read the cross-sectional area of

individual wire of the drop cable

Example:

1. SQ pump incl. motor size 10 SQ07-200, 0.75hp, 230v

2. Distance from pump to the power source (outside 144 ft (D + F) + inside 20 ft (E)) 164 ft

3. Selected cross-sectional area 14 AWG

Level of well head Cable length in feet.

Note: Shaded values do not apply when using a CU 301 as its max. Recommended cable lenght is 650 ft.

Dynamic water level

F (82 ft)

D (62 ft)

E (20 ft)

Power source Cable entrance house

Supply voltage 240 V 5% voltage drop and cable supplied by Grundfos.

!

CABLE SIZING CHART

HOW TO SELECT THE CROSS-SECTIONAL AREA

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WASTE WATER - PUMP SELECTION

Use the tables below to select the best Grundfos pump for any type of wastewater task. Once you’ve settled on a pump model, use the corresponding sizing guide to get the perfect fit.

Drainage

For portable use or permanent installation, clean or greywater and salt water*

Light duty

Heavy duty

Effluent

Surface- and rainwater as well as greywater from sanitary appliances

Sewage/Domestic wastewater

Domestic wastewater with toilet discharge

UNILIFT 0.4” AP12

UNILIFT 1.4” AP35

UNILIFT AP35B 1.4”

UNILIFT AP50B 2.0”

UNILIFT 2.0” AP50

UNILIFT 0.4” KP

Max. solid size [inch]

DRAINAGE

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DRAINAGE - QUICK SIZING

Ex. sizing and selection

1. Select the best Grundfos pump for the type of wastewater task you need to solve:

- Use the table on previous page 2. Find the right pump:

- Head: 30 ft

- How long distance: 1300 ft 3. Result: AP12.50.11

AP12.40.08 AP12.50.11

Head\Distance

45.9 ft Max. 311.6 ft

39.3 ft Max. 3.2 ft Max. 656.1 ft

32.8 ft Max. Max. 1345.1 ft

26.2 ft Max. 1017 ft Max. 2034.1 ft

Head Head Head

Distance Distance Distance

Max. 492.1 ft

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DRAINAGE - QUICK SIZING

UNILIFT KP

The selection and sizing illustration is based on an inner diameter of a DN 32 discharge pipe and a sufficient velocity to keep the pipe clean.

The selection and sizing illustration is based on an inner diameter of a 1-1/2’’ pipe for a UNILIFT AP12.40 and a 2’’ pipe for a UNILIFT AP12.50 and secure a self cleaning velocity inside the pipe.

KP 150 KP 250 KP 350

Head\Distance

26 ft Max. 100 ft

24 ft Max. 175 ft

22 ft Max. 75 ft

20 ft Max. 150 ft Max. 350 ft

14 ft Max. 30 ft

12 ft Max. 100 ft Max. 450 ft Max. 625 ft

AP12.40.04 AP12.40.06 AP12.40.08 AP12.50.11

Head\Distance

50 ft Max. 100 ft

27 ft Max. 75 ft

25 ft Max. 200 ft Max. 600 ft Max. 1250 ft Max. 1700 ft

UNILIFT AP12

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DRAINAGE - QUICK SIZING

The selection and sizing illustration is based on an inner diameter of a 11/2” pipe and secure a self cleaning velocity inside the pipe.

The selection and sizing illustration is based on an inner diameter of a 2” pipe and secure a self cleaning velocity inside the pipe.

AP35.40.06 AP35.40.08

Head\Distance

35 ft Max. 50 ft

30 ft Max. 150 ft

27 ft Max. 50 ft

AP35B.50.06 AP35B.50.08

Head\Distance

26 ft Max. 75 ft

25 ft Max. 175 ft

22 ft Max. 100 ft

UNILIFT AP35B

UNILIFT AP35

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DRAINAGE - QUICK SIZING

*The pumps shall not operate for an extended period of time with this Head

AP50B.50.08 AP50B.50.11 AP50B.50.15

Head\Distance

40 ft Max. 50 ft

30 ft Max. 450 ft

26 ft Max. 600 ft

25 ft Max. 1000 ft

AP50.50.08 AP50.50.11

Head\Distance

32 ft Max. 75 ft

30 ft Max. 250 ft

25 ft Max. 500 ft

23 ft Max. 75 ft

0622/DBS/UK/4013744-BrandBox