MINOR LOSSES Sambungan Pipa (fittings): Flow through run Flow through branch Return bend 45 o elbow...

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Transcript of MINOR LOSSES Sambungan Pipa (fittings): Flow through run Flow through branch Return bend 45 o elbow...

MINOR LOSSES

Sambungan Pipa (fittings):Flow through runFlow through branchReturn bend45o elbow90o elbow45o street elbow90o street elbow90o long radius elbow

Katup (valves): Globe valveGate valveButterfly valveAngle valveFoot valveBall valveCheck valve

Enlargement :

Sudden enlargement

Gradual enlargement

Contraction :

Sudden constraction

Gradual constraction

Exit loss

Entrance loss

Te

2

L

fD

LK

g2

VKh

K = koefisien tahanan (resistance coefficient)

Le = Panjang ekivalen

fT = faktor gesekan pada turbulen penuh

Sudden Enlargement

Grafik/Tabels

m12V

D

D1K

s

m12V

g2

VKh

2

2

1

2

L

Gradual Enlargement

Sudden Construction

Gradual Construction

Entrance Loss

Exit Loss

g2

Vh0.1K

2

L

Globe Valve Gate Valve Butterfly Valve

Ball Valve Angle Valve Check Valve

Foot Valve Poopet disk

Foot Valve Hinged disk

Fitting

Kekasaran pada berbagai jenis pipa