7/23/2019 K factor of valve & fittings.docx

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  Values of K for Various Fitting Type

Fitting Types K  

45° ElbowStandard (R/D = 1) 0.35

Long Radius (R/D = 1.5) 0.2

0° Elbow !ur"#dStandard (R/D = 1) 0.$5

Long Radius (R/D = 1.5) 0.45

0° Elbow S%uar# or &itr#d 1.3

1'0° #nd !los# R#turn 1.5

##* Run +roug+ ran,+ lan-#d 0.4

##* as Elbow Ent#ring in run 1

##* as Elbow Ent#ring in bran,+ 1##* ran,+ing low 1

!ouling 0.04

nion 0.04

at# "al"#

ull #n 0.1$

3/4 #n 0.

1/2 #n 4.5

1/4 #n 24

Dia+rag "al"#

ull #n 2.3

3/4 #n 2.

1/2 #n 4.3

1/4 #n 21

lob# "al"#* #"#l S#at ull #n 1/2 #n .5

lob# 6al"#* !oosition s#atull #n

1/2 #n '.5

7lug dis- 

ull #n

3/4 #n 13

1/2 #n 3

1/4 #n 112

8ngl# "al"# ull #n 2

9 "al"# or blowo:: "al"# ull #n 3

7lug ,o,- 

; = 5° 0.05

; = 10° 0.2

; = 20° 1.5; = 40° 1$.3

; = 0° 20

utt#r:l "al"#

; = 5° 0.24

; = 10° 0.52

; = 20° 1.54

; = 40° 10.'

; = 0° 11'

!+#,- "al"#

Swing 2

Dis- 10

all $0

oot "al"# 15

<at#r #t#r 

Dis- $7iston 15

Rotar (stars+a#d dis-) 10

urbin#w+##l