Number of the fittings on the piping |
Fitting |
Types |
Quantity |
45° Elbow |
Standard (R/D = 1) |
|
Long Radius (R/D = 1.5) |
|
90° Elbow Curved |
Standard (R/D = 1) |
|
Long Radius (R/D = 1.5) |
|
90° Elbow Square or Mitred |
|
180° Bend |
Close Return |
|
Tee, Run Through |
Branch Blanked |
|
Tee, as Elbow |
Entering in run |
|
Tee, as Elbow |
Entering in branch |
|
Tee, Branching Flow |
|
Coupling |
|
Union |
|
Gate valve |
Fully Open |
|
3/4 Open |
|
1/2 Open |
|
1/4 Open |
|
Diaphragm valve |
Fully Open |
|
3/4 Open |
|
1/2 Open |
|
1/4 Open |
|
Globe valve, Bevel Seat |
Fully Open |
|
1/2 Open |
|
Globe Valve, Composition seat |
Fully Open |
|
1/2 Open |
|
Plug disk |
Fully Open |
|
3/4 Open |
|
1/2 Open |
|
1/4 Open |
|
Angle valve |
Fully Open |
|
Y valve or blowoff valve |
Fully Open |
|
Plug cock |
θ = 5° |
|
θ = 10° |
|
θ = 20° |
|
θ = 40° |
|
θ = 60° |
|
Butterfly valve |
θ = 5° |
|
θ = 10° |
|
θ = 20° |
|
θ = 40° |
|
θ = 60° |
|
Check valve |
Swing |
|
Disk |
|
Ball |
|
Foot valve |
|
Water meter |
Disk |
|
Piston |
|
Rotary (star-shaped disk) |
|
Turbine-wheel |
|
Fittings loss factor: |
|
|