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5 Cards in this Set
- Front
- Back
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Two main reasons for pressure loss in a hose are? |
Gravity Frictional loss inside hose |
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Factors affecting pressure loss are... |
Internal diameter of hose Output flow of water Height in mtrs Length of hoseline |
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Effects of gravity pressure downwards are... |
Every 10mtrs in height = 1 bar of pressure |
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How do you overcome pressure loss |
Use the largest sized hose available Consider using a 70mm hose with a 45mm hose Reduce the flow setting in the branch Add one bar per 45mm hose Round up bars |
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What are the loss pressure bars for 1 mtre in height, 45mm 70mm hose and 1 floor
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45mm 1 bar 70mm 0.2 bar 1 mtre height 0.1 1 floor 0.3 bar |
