COPPER PIPE SIZING PROGRAMProVersion

PRO CALCULATOR WILL WORK ON PHONE OR PC (and offline)

ENTER START PRESSURE say 40m=392.4 kPa

ENTER NUMBER OF DWELLINGS

LENGTH TO WORST CASE

HEIGHT DIFFERENCE between start and end locations

ANSWERS

Keep clicking anywhere to proceed

392.4

30

12

15

3.0

10

40 m

15

Min residual head

10

32

1.937

0

1.94

CHECK WITH CODE

ANSWERS

40 m

15

10

RESIDUAL HEAD IS 10mPressure Drop = start – Ht. diff – residual

= 40 – 15 – 10 = 15m

Pressure Drop 15 m

392.4

30

12

15

3.0

10

32

1.937

0

1.94

392.4

30

12

15

3.0

10

32

1.937

0

1.94

CHECK WITH CODE Pressure Drop = 15m

From Code table 3.2, flow from 12 dwellings = 1.94 L/s

From table C1 the closest higher flow for length 30m is 2.02 L/s.This gives the required pipe size = 32mm

392.4

30

12

15

3.0

10

32

1.937

0

1.94

A table is also produced showing the capacities of each pipe section

32

1.937

0

1.94

A table is also produced showing the capacities of each pipe sectionFrom previous: Pressure Drop = 15mSize from previous = 32.

Length = 30

Agrees with resultsFlow = 2.02

CODE

Ability to enter fixtures as well as dwellings

22

10

10

5

5

1.25

Flow is calculated

Flow is transferred to main screen

Flow is totalledFixed Flows ie Hose Reels can be added

If the pressure is too low, pump duty is calculated

Use this pressure as the start pressure to calculate pipe sizes when using the pump.

HOW TO SIZE A LARGE JOBDraw a diagrammatic

Level 2

Level 1

Ground

Name all the fixtures

CWR 1

Roof

3530

2124

3030

65

110

170

230 400

Name all the fixturesSum the Loading Units from the table given in the notes section)Enter the Parameters & press calculate

WC Sk

To other parts of the project

To Street main or Pump

392.4

30

12

15

3.0

10

32

1.937

0

1.94

SCROLL DOWN TO THE RESULTS TABLE

32

1.937

0

1.94

Level 2

Level 1

Ground

CWR 1

Roof

3530

2124

3030

65

110

170

700 870

WC Sk

To other parts of the project

To Street main or Pump

Read off the required size for each pipe section, using the LU’sChoose the size that can carry the given LU’s or more (never less)

Draw the size on the diagramatic

2525

32

40

50

ADVANTAGES OVER THE CODE

QUICKER AND EASIER

THIS PROGRAM PRODUCES A TABLE FOR EVERY POSSIBLE PRESSURE DROP WITH NO UPPER LIMIT

THE CODE PRESSURE DROP TABLES ARE IN INCREMENTS OF UP TO 5M, AND ONLY GO UP TO 35M

THE INDEX LENGTH IS ALSO INCREMENTED BY 5M

THIS PROGRAM PRODUCES A TABLE FOR EVERY POSSIBLE INDEX LENGTH

THE ADVANTAGE OF THIS IS THAT THERE IS NO NEED TO INTERPOLATE BETWEEN THE FIGURES IN THE TABLES, OR ACCEPT A POSSIBLY LARGER SIZE THAN REQUIRED.

Further Information and Notes