Hose
DO YOU NEED A HEAVIER DUTY HOSE OR HAVE A WARRANTY ISSUE…...Read this
Our hose options on the previous pages are satisfactory for most pressure cleaner users, however there are some specific applications or heavier duty users that need a better solution.
Some definitions:
Non Skived Hose (ie R2AT) Current technology, weighs less, thinner outer cover Skived Hose (ie R2A) Older technology, outer cover twice the size of Non Skived, much heavier Super Tuff Hose Mining grade with smooth polyethylene cover. Super Tuff has: Excellent abrasion resistance Resistance to chemical agents Resistance to impact damage ie car wheels UV resistance, increasing age Non absorbing for underwater applications
The disadvantage Skived Hose is increased weight, hose stiffness and higher price. Supertuff is lighter and more flexible, but more expensive.
Our recommendation: A lot of damage to the hose occurs from a) dragging the hose near the gun/operator and b) chemical damage such as acid used by brick cleaners. To reduce this, we recommend using (say) 10 meters of Super Tuff as a whip hose starting from the gun. After the 10 meters, attach a standard hose so you still get the advantages of a standard hose. Damage may occur further down the hose, towards the machine itself. This is usually caused from c) running over the hose which damages the wire braid inside and results in the hose ballooning from the inside out and d) the hose more generally being dragged around abrasive areas. The best way to treat these 2 common requests for warranty is to look after your hose. If this is not possible, a less satisfactory solution is to use a skived hose as explained above. Remember there are a number of disadvantages to this option.
Pressure Drop
Pressure Drop In Rubber Hoses Pressure drops expressed in bar per 1 meter length of linear hose without fittings. Specific gravity: 0/85 - Viscosity: 20 centistokes (cs) at 21°C.
Diameter (inches & mm)
3/16” 4.8 0.242 0.466 0.996 2.433 3.540
1/4” 6.4 0.075 0.146 0.293 0.613 0.880 1.776 3.080
5/16” 7.9
3/8” 9.5
1/2” 12.7
5/8” 15.9
3/4” 19
1” 25.4
1”1/4 31.8
1”1/2 38.1
2” 50.8
3” 76.2
1 2 4 8
0.066 0.133 0.250 0.335 0.660 1.129 2.159
0.058 0.117 0.144 0.273 0.462 0.887
10 15 20 30 40 50 60 70 80 90
0.045 0.068 0.116 0.228 0.379 0.555 0.756 0.970 1.250 1.531
0.027 0.041 0.082 0.144 0.192 0.263 0.373 0.475 0.560 0.653 0.964
0.018 0.032 0.050 0.075 0.111 0.154 0.200 0.237 0.274 0.393 0.567 0.735 0.920
0.014 0.021 0.029 0.037 0.049 0.066 0.073 0.103 0.147 0.186 0.228 0.347 0.475 0.832 1.159
0.009 0.013 0.016 0.021 0.025 0.036 0.050 0.060 0.083 0.124 0.162 0.303 0.425 0.562 0.733 0.924 1.144
0.007 0.008 0.010 0.014 0.019 0.026 0.033 0.050 0.068 0.118 0.164 0.222 0.301 0.383 0.468 0.553
L/min
100 125 150 175 200 250 300 400 500 600 700 800 900
0.003 0.004 0.005 0.007 0.009 0.013 0.017 0.032 0.043 0.057 0.078 0.098 0.118 0.140
0.002 0.004 0.006 0.008 0.011 0.014 0.016 0.019
1000
Hose Friction Pressure Loss (Pressure Drop in PSI per 30.48 m of Hose with Typical Water Flow Rates)
Hose Inside Diameters, Inches
WATER FLOW l/min.
1/4"
5/16"
3/8"
1/2"
5/8"
3/4"
1”
3.8 7.5
54
20 60
7
2 6
-
- -
- - - - -
180 380
25 50 90
2 4 7
11.4
120 220 320
13 24 34 52 80
2 3 4 7
15
- - - - - -
18.9 22.7 30.3
130 220 300
10 16 25 38 80
- - - -
1 2 3 7
10 14 30
38 56
- -
120 250
498
B.A.R. Group Pty Ltd - Price List 2024 November
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