→ Study → E-Tables → Local friction coefficient

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E-Tables

Local friction coefficients

Type	z	Number	Total
Elbow 45°	0.3
Elbow 90°	1.26
Arc 90°	0.25
Intake basket	6
Gate valve (100% open)	0.15
Gate valve (75% open)	0.9
Gate valve (50% open)	4.5
Gate valve (25% open)	24
Shut-off valve - angled (100% open)	1.6
Shut-off valve - straight (100% open)	3
Inlet into the pipe - sharp	0.5
Inlet into the pipe - blunt	0.25
Outlet of the pipe	1
Check valve (100% open)	6
Total: