Chart

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Helpful Charts & Conversions
Nozzlingyourhighpressurecleanercorrectlyiscrucialtoensureyouaregettingtopperformanceoutofyourunit!Anozzlethatistoobigwill
resultinadropinpressure,andanozzlethatistoosmallwillforcesomewatertobypassinthepumpcontinously-eventuallycausingdamage
to the pump internals. IfyouknowthepressureinPSIorBARofyourhighpressurecleaner,andyouknowtheflowrate-simplyusethechart
below to checktheoptimumnozzlesize!
PRESSURE
psi (psi) x 0.0689 =bar
bar (bar) x 14.504 =psi
FLOW RATE
Litresperminute(L/min) x 0.26417 =USgpm
Gallons per minute (gpm) x 3.785 =L/min
LENGTH
Millimetres (mm) x 0.03937 =in
Metres (m) x 3.28083 =ft
POWER
kilowatts(kW) x 1.341 =hp
horsepower (hp) x 0.7457 =kw
Nozzle
Size
ø
20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300
02 .91 2 2.5 2.8 3.2 3.5 3.7 4 4.2 4.5 4.7 4.9 5.1 5.3 5.5 5.7 5.9 6 6.2 6.4 6.6 6.7 6.8 6.9 7 7.1 7.13 7.4 7.5 7.6
03 1.09 3.1 3.7 4.3 4.8 5.3 5.7 6.1 6.3 6.8 7.1 7.4 7.7 8 8.3 8.6 8.9 9.1 9.3 9.5 9.7 9.9 10.1 10.3 10.5 10.6 11.2 11.4 11.6 11.8
04 1,19 4,2 5,2 5,9 6,6 7,3 7,8 8,4 8,9 9,4 9,8 10 ,3 10,7 11 11,5 11, 9 12 , 2 12, 6 12 ,9 13, 3 13, 6 13 , 9 14, 2 14, 5 14 ,8 1 5 ,1 15, 4 15,7 16 16,3
045 1,27 4,5 5,5 6,4 7,1 7,8 8,4 9 9,6 10,2 10,6 11 11,4 11,8 12,2 12,6 13 13,4 13,8 14,2 14,6 15 15,3 15,6 15,9 16,2 16,7 17,1 17,4 17,7
05 1,35 5 6,2 7,1 8 8,7 9,4 10 10,7 11,3 11,9 12,4 12,9 13,4 13,9 14,3 14,7 15,1 15,5 15,9 16,3 16,7 17,1 17,5 17,9 18,2 18,6 18,9 19,2 19,6
055 1.4 5.6 6.7 7.8 8.7 9.6 10.3 11.1 11.8 12.4 13 13.6 14.2 14.8 15.3 15.8 16.3 16.7 17.1 17.5 17.9 18.3 18.7 19.1 19.5 19.9 20.4 20.7 21.1 21.5
06 1.47 6 7.6 8.6 9.6 10.4 11.3 12.1 12.8 13.6 14.2 14.8 15.4 16 16.6 17.1 17.6 18.1 18.6 19.1 19.6 20.1 20.5 20.9 21.3 21.7 22.3 22.7 23.1 23.5
065 1.52 6.6 8 9.3 10.4 11.3 12.3 13.2 14 14.7 15.4 16.1 16.8 17.4 18 18.7 19.4 19.9 20.4 20.9 21.4 21.9 22.4 22.9 23.4 23.8 24.1 24.6 25 25.5
070 1.6 7.1 8.6 10 11.2 12.2 13.2 14.1 15 15.3 16.6 17.3 18 18.7 19.4 20 20.6 21.2 21.8 22.4 22.9 23.4 23.9 24.4 24.9 25.4 25.9 26.4 26.8 2 7.3
075 1.65 7.6 9.3 10.7 12 13.1 14.2 15.2 16.1 16.9 17.8 18.6 19.3 20.1 20.8 21.5 22.2 22.8 23.4 24 24.6 25.2 25.8 26.3 26.8 27.3 27.9 28.4 28.9 29.4
08 1.7 8 9.8 11.3 12.7 14 15.1 16.1 17.1 18 18.8 19.6 20.4 21.2 22 22.8 23.5 24.2 24.8 25.4 26 26.6 27. 2 27.8 28.4 29 29.5 30.1 30.6 31.1
085 1.75 8.5 10.4 12.1 13.5 14.8 1.6 17.1 18.1 19.1 20 20.9 21.8 22.6 23.4 24.1 24.9 25.6 26.3 27 27.7 28.3 28.9 29.5 30.1 30.7
31.4 31.9 32.5 33.1
09 1.8 9.1 11.1 12.8 14.3 15.7 17 18 19.2 20.2 21.2 22.1 23 23.9 24.7 25.5 26.3 27.1 27.8 28.5 29.2 29.9 30.6 31.3 31.9 32.5 33.2 33.8 34.4 35
10 1.9 10 12.3 14.2 16 17.4 18.9 20.1 21.4 22.5 23.6 24.6 25.6 26.6 27.6 28.5 29.4 30.2 31 31.8 32.6 33.4 34.1 34.9 35.6 36.3 36.9 37.6 38.3 38.9
Pressure (bar)
FlowRate(L/min)
NozzleSizeChart
Common Conversions
PressureDrop(Theoretical)calculatedfor10mlengths
Example1:Apressurecleaneroperatingat15L/min,witha20m3/8”hose,will
experience20psipressurelossper10mofhose,=40psipressurelosstotal.
Flow
Rate
(L/min)
HOSE INTERNAL DIAMETER (I.D.)
1/4” (6.4mm) 5/16” (7.9mm) 3/8” (9.5mm) 1/2” (12.7mm)
bar psi bar psi bar psi bar psi
10 5 73 1.5 22 - - - -
12 7 102 2.2 32 - - - -
15 10 145 3. 48 1.4 20 - -
16 12 174 4 58 1.7 25 - -
18 14 203 4.6 67 2 29 - -
20 17 247 5.5 80 2.5 36 - -
21 18 261 6 87 2.6 38 - -
25 25 363 8.5 124 3.6 52 - -
30 35 508 12 174 5 73 1.1 16
35 44 640 15 218 6.6 96 1.5 22
40 60 870 19 275 8 116 2 29
50 90 1300 30 435 13 188 2.7 40
HosePressureLossChart