# CheCalc

Chemical engineering calculations to assist process, plant operation and maintenance engineers.

## Pipe Fitting Losses

Pressure loss in a pipe due to fittings such as elbows, tees, valves, expanders and reducers based on 3K and 2K method.
Pipe
inch
inch
m
m
Fluid
lb/h
lb/ft³
cP

Result
90° Elbow
Qty90° ElbowK
Flanged, Welded, Bend, r/D=1 0.27
Flanged, Welded, Bend, r/D=2 0.27
Flanged, Welded, Bend, r/D=4 0.27
Flanged, Welded, Bend, r/D=6 0.27
Mitered, 1 Weld, 90° 0.27
Mitered, 2 Weld, 45° 0.27
Mitered, 3 Weld, 30° 0.27
Mitered, 4 Weld, 22.5° 0.27
Mitered, 5 Weld, 18° 0.27
45° Elbow
Qty45° ElbowK
Standard, r/D=1 0.27
Mitered, 1 Weld, 45° 0.27
Mitered, 2 Weld, 22.5° 0.27
180° Bend
Qty180° BendK
Flanged/ Welded, r/D=1 0.27
Tees
QtyTeesK
Standard, Flanged/Welded, r/D=1 0.27
Stub-in Branch 0.27
Run Through, Flanged/Welded, r/D=1 0.27
Run Through Stub in Branch 0.27
Valves
QtyValvesK
Angle Valve =45°, β=1 0.27
Angle Valve =90°, β=1 0.27
Globe Valve, β=1 0.27
Plug Valve, Branch Flow 0.27
Plug Valve, Straight Through 0.27
Plug Valve, 3-way, Flow Through 0.27
Gate Valve, β=1 0.27
Ball Valve, β=1 0.27
Butterfly Valve 0.27
Diaphragm Valve, Dam Type 0.27
Swing Check Valve 0.27
Lift Check Valve 0.27
Tilting Disk Check Valve 0.27
Reducer
inch
°
QtyReducerK
Square Reduction 0.27
Tapered Reduction 0.27
Rounded Pipe Reduction 0.27
Expander
inch
°
QtyExpanderK
Square Expansion 0.27
Tapered Expansion 0.27
Rounded Pipe Expansion 0.27
Orifice
inch
inch
QtyOrificeK
Thin Sharp Orifice 0.27
Thick Orifice 0.27
Pipe Entrances
QtyPipe EntrancesK
Flush/ Square Edged 0.27
Rounded
0.27
Inward Projecting 0.27
Chamfered 0.27
Pipe Exits
QtyPipe ExitK
Pipe Exit 0.27