air pressure loss in standard power tool hoses

We offer this and many other helpful guides as a service to our new and existing clients. Please be sure to check out our entire line of power tools from Production Products.












Excessive pressure drop is the most common cause of complaints involving "loss of power" in portable air tools.  When such a complaint arises, be sure that someone takes a pressure reading at the tool while the tool is turned on ... governed tools while under load.

The most common causes of excessive pressure drop are restrictions to air flow in long lengths of small diameter pipes and hoses, in hose fittings, filters, lubricators, and especially in quick disconnect couplings.  For large volumes of air, large lines and fittings are required.

We offer two charts below.

  • based on 90 PSI line pressure

  • basedon 100 PSI line pressure

 
Air
Flow
CFM		 Air Pressure Loss (PSI) in Standard power tool hoses
Based on 90 psi Line Pressure
Hose Number and Size
1/4" x 8' 5/16" x 8' 3/8" x 10' 3/8" x 20' 1/2" x 12" 1/2" x 25"
10 3 2 1 1    
11 4 2 1 1.5    
12 5 2 2 2    
13 5.5 2.5 2 3    
14 6 2.5 2 3    
15 6.5 2.5 2 4 0 0
16 7. 3 2.5 4.5    
18 59 3.5 3 5    
20 12 4 3.7 6 .1 .3
25 18 5.5 6 7.5 .7 .8
30 28 8 8.5 10.5 1.8 1.0
35 44 11 10 15 1.2 1.6
40   13 14 19.7 2.2 2.5
50   22 21.5 28.5 3 3.4
60   33 33 45 3.2 4


top
Air
Flow
CFM		 Air Pressure Loss (PSI) in Standard power tool hoses
Based on 100 psi Line Pressure
Hose Number and Size
1/4" x 10' 5/16" x 8' 3/8" x 10' 1/2" x 12 1/2 1/2" x 25' 1/2" x 50' 3/4" x 12.5' 3/4" x 25' 3/4" x 50' 1/2" x 50' + 1/4" x 10' 1/2" x 50' + 3/8" x 10' 1/2" x 50' + 5/16" x 10' 1/2/" x 50' + 1/2" x 12.5' 3/4" x 50' + 1/2" x 25' 3/4" x 50' + 3/4" x 12.5'
10 - 11 5.0 0.9               5.3 0.7 1.4      
11 - 12 5.9 1.0               6.2 0.8 1.6      
12 - 13 6.8 1.2 0.4             7.2 0.9 1.9      
13 - 14 8.0 1.4 0.5             8.4 1.1 2.2      
14 - 15 9.3 1.3 0.6             9.8 1.3 2.5      
15 - 16 11.0 1.9 0.7             11.6 1.5 2.9      
16 - 18 14.0 2.4 0.8             15.0 1.9 3.5 1.7    
18 - 20 19.6 3.0 1.0             21.4 2.4 4.5 2.0    
20 - 25   4.3 1.4 0.7 1.0 1.3         3.5 6.4 2.6 1.3  
25 - 30   6.6 2.1 1.0 1.5 2.3         5.2 9.8 3.8 1.9  
30 - 35   9.5 3.1 1.3 2.1 3.6         7.3 13.7 5.3 2.6  
35 - 40   12.8 4.2 1.7 2.8 5.2         9.6 18.4 7.1 3.5  
40 - 50   19.3 6.3 2.4 4.1 8.0         14.0   10.4 5.2 1.8
50 - 60     9.6 3.7 6.3 12.2         21.8   16.0 7.8 2.3
60 - 70     13.5 5.3 9.0 17.4 0.9 1.4 1.9       22.8 11.1 3.0
70 - 80     18.7 7.1 12.4   1.1 1.7 2.5         15.0 3.7
80 - 90     25.0 9.0 16.1   1.4 2.2 3.2         19.8 4.6
90 - 100       11.0     1.7 2.7 4.0           5.8
100 - 120             2.3 3.5 5.6           7.9
120 - 140             3.2 4.8 8.0           11.2
140 - 160             4.6 6.6 11.0           15.5
160 - 180             5.6 8.7 15.2           20.4
180 - 200             7.2 11.0              
200 - 220             9.0                


top

Guides / ChartsProductsServiceSpecials
HomeFeedback

Production Products, Inc.
9124 Cody
Overland Park, KS 66214-1732
(913) 492-3033 FAX: 3035
info@productionproducts.com

site by web_mstr.gif (3163 bytes)
webmaster email