Out
side
X
amet
er
of
Rai
sed
Face
R 2.00
2.
88
3.62
4.
12
5.00
6.19
8.
50
10.6
2 12
.75
15.0
0
16.2
5 18
.50
21.0
0 23
.00
27.2
5
Out
side
D
iam
eter
of
fla
nge
O
4.88
6.
12
6.50
7.
50
8.25
10.0
0 12
.50
15.0
0 17
.50
20.5
0
23.0
0 25
.50
28.0
0 30
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36.0
0
Dia
met
er of
E
ount
erbo
re C
ount
erbo
re
Dep
th
(Fro
m F
ace)
rh
ickn
ess
of
Flan
ge,
Min
. C
1.50
1.
50
1.50
1.
50
1.50
1.50
1.
50
1.62
1.
88
2.00
2.12
2.
25
2.38
2.
50
2.75
Slip
-On
and
Thre
aded
Y
2
1.88
1.
88
1.94
2.
00
2.06
2.12
2.
12
2.44
2.
62
2.88
3.00
3.
25
3.50
3.
75
4.19
i(5L
Iach
ine
Bol
ts
4.50
4.
75
4.50
4.
75
4.75
4.75
4.
75
5.00
5.
75
6.25
6.50
7.
00
7.25
7.
50
8.25
(611
Stu
d B
ob
5.00
5.
25
5.00
5.
25
5.25
5.25
5.
25
5.75
6.
50
7.00
7.25
8.00
y,
8.50
7.75
g
9.50
7
Mel
d Ue
ck
BI - - I- P) c. g $
0
Pres
sure
C
on-
nect
ion
77
;I4
14
k4
14
18
l12
12
5;
12
'/2 '/2 ?;
12
'/2
1 3 ;I2
1 1
0.W
J I
0.06
z
GI
I- TA
BLE
1
CLA
SS 3
00 O
RIF
ICE
FLA
NG
ES, W
ELD
ING
NEC
K, S
LIP-
ON
, AN
D T
HR
EAD
ED3P
ter
of
I Hub
D
iam
eter
Ie
ginn
ing
of
Cha
mfe
r (W
.N.)
A
1.32
1.
90
2.38
2.
88
3.50
4.50
6.
63
8.63
10
.75
12.7
5
14.0
0 16
.00
18.0
0 20
.00
24.0
0
I+ n
n
0-
Dri
llin -
lum
bei
of
Hol
es
4 4 8 8 8 8 12
12
16
16
20
20
24
24
24
- ie
mpl
ate
T-T
Bac
k Fa
ce
-
G
0.75
0.
72
0.69
0.
56
0.56
0.56
0.31
0.
44
-
- -
lip-O
r B2
1.36
1.
95
2.44
2.
94
3.57
4.57
6.
72
8.72
10
.88
12.8
8
14.1
4 16
.16
18.1
8 20
.20
24.2
5
-
-
Bol
t C
ircle
3.50
4.
50
5.00
5.
88
6.62
7.88
10
.62
13.0
0 15
.25
17.7
5
20.2
5 22
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24.7
5 27
.00
32.0
0
-
o!
Nom
- in
al
Pip
e S
ize 1 2 1 '12
2 '/2
3
Wel
d N
eck
Y1
biam
eter
of
Hub
X 2.12
2.
75
3.31
3.
94
4.62
5.75
8.
12
10.2
5 12
.62
14.7
5
16.7
5 19
.00
21.0
0 23
.12
27.6
2
3.25
3.
38
3.38
3.
50
3.50
3.62
3.
94
4.38
4.
62
5.12
5.62
5.
75
6.25
6.
38
6.62
0.69
0.
81
0.69
0.
81
0.81
4 6 8 10
12
0.81
0.
88
1 .oo
1.12
1.
25
1.25
1.
38
1.38
1.
38
1.62
14
16
18
20
24
See
Not
e (8
).
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
GE
NE
RA
L N
OTE
: Dim
ensi
ons
are
in in
ches
.
NO
TES
: (1
) O
ther
NPT
siz
es m
ay b
e fu
rnis
hed
if re
quire
d.
(2)
For s
lip-o
n an
d th
read
ed fl
ange
s, v
erify
that
77d
rilli
ng e
xten
ds to
insi
de d
iam
eter
of p
ipe
afte
r ass
embl
y an
d is
free
from
bur
rs.
(3)
Wel
d ne
ck fl
ange
s N
PS
3 a
nd s
mal
ler
are
iden
tical
to C
lass
600
flan
ges
and
may
be
so m
arke
d.
(4)
All
othe
r di
men
sion
s ar
e in
acc
orda
nce
with
AS
ME
816
.5.
(5)
Bolt
leng
ths
incl
ude
allo
wan
ce fo
r or
ifice
and
gas
ket t
hick
ness
of 0
.25
in. f
or N
PS
1-1
2 an
d 0.
38 in
. for
NPS
14-
24.
(6)
In c
onfo
rman
ce w
ith A
SM
E 8
16.5
, stu
d bo
lt le
ngth
s do
not
incl
ude
poin
t he
ight
s.
(7)
Bor
e di
amet
er o
f wel
d ne
ck R
ange
s is
to b
e sp
ecifi
ed b
y th
e pu
rcha
ser.
(8
) Th
read
ed fl
ange
s ar
e fu
rnis
hed
in N
PS 1
-8 o
nly.
E 2 m
VI
-I U * VI x
m
m
P
U- w 71
m
U-
D z m
rn
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
77 d
rill
mus
t be
PiiR
in(m
d Da
tdl
Orifh
Q
lm
Rabd
Fm
Rh
w Ty
poJo
lrn
-MY
TABL
E 2
CLA
SS
400
OR
IFIC
E FL
ANG
ES,
WEL
DIN
G
NEC
K2 I I
Ring
Ty
pe
Join
t
Thick
- ne
ss
of
Leng
th
l-l-l
Piich
1
flang
e,
Thro
ugh
Groo
ve
Diam
- M
in.
Hub
Num
- et
er
C Y
ber
P
Ring
Ty
pe
Join
t Hu
b Th
ick-
Spec
ial
Diam
- Di
amet
er
ness
of
Le
ngth
Pi
ich
Radi
us
Oval
eter
Be
ginn
ing
flang
e,
Thro
ugh
Groo
ve
Diam
- Gr
oove
Gr
oove
at
Ri
ng
of
of
Min
. Hu
b Nu
m-
eter
De
pth
Wid
th
Botto
m
Heig
ht
Hub
Cham
fer
Bore
C
Y be
r P
E F
rma
W
X A
B
Groo
ve L De
pth
E
1 Rad
ius
e?I
I I
Hub
Diam
- Di
amet
er
eter
Be
ginn
ing
l-L
of
of
Hub
Cham
fer
Bore
X
A B
Xam
e te
r of
Pr
es-
sure
Co
n-
nec-
tio
n 77
Drilli
ng
Tem
plat
e
Leng
th
of
Stud
Bo
lts
W).
(411
Diam
- et
er
of
Bolt
Num
- be
r of
Ho
les
03
inal
Pi
pe
Size
eter
of
Ho
les
1 1'/2
2 2'/2
3
For
NPS
3 an
d sm
aller
,use
Clas
s 80
0.
4 6.1
9 10
.00
1.50
3.50
R37
5.87
5 0.
312
0.46
9 0.0
3 6
8.50
12.5
0 1.6
2 4.0
6 R4
5 8.
312
0.31
2 0.
469
0.03
8 10
.62
15.0
0 1.8
8 4.6
2 R4
9 10
.625
0.
312
0.46
9 0.0
3 10
12
.75
17.5
0 2.1
2 4.8
8 R5
3 12
.750
0.
312
0.46
9 0.0
3 12
15
.00
20.5
0 2.2
5 5.3
8 R5
7 15
.000
0.
312
0.46
9 0.0
3
14
16.2
5 23
.00
2.39
5.88
R61
16.5
00
0.31
2 0.
469
0.03
16
18.5
0 25
.50
2.50
6.00
R65
18.5
00
0.31
2 0.
469
0.03
18
21.0
0 28
.00
2.62
6.50
R69
21.0
00
0.31
2 0.
469
0.03
20
23.0
0 30
.50
2.75
6.62
R73
23.0
00
0.37
5 0.
531
0.06
24
27.2
5 36
.00
3.00
6.88
R77
27.2
50
0.93
8 0.
656
0.06
1.06
5.75
4.50
1.06
8.12
6.63
1.06
10.2
5 8.6
3 1.0
6 12
.62
10.7
5 1.0
6 14
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12.7
5
1.06
16.7
5 14
.00
1.19
19.0
0 16
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1.19
21.0
0 18
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1.25
23.1
2 20
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1.44
27.6
2 24
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s 0 5 z 8 v) - 1
7.88
10.6
2 13
.00
15.2
5 17
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20.2
5 22
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24.7
5 27
.00
32.0
0
8 12
12
16
16
20
20
24
24
24
1.00
1.00
1.12
1.25
1.38
1.38
1.50
1.50
1.62
1.88
5.50
6.00
6.25
6.50
6.75
7.25
7.50
8.00
8.00
8.50
8.25
8.75
9.25
9.75
11.0
0
9.00
9.25
9.50
10.2
5 g
11.5
0 5 R g E
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
GE
NE
RA
L N
OTE
: Dim
ensi
ons
are
in in
ches
.
NO
TES
: (1
) O
ther
NP
T si
zes
may
be
furn
ishe
d if
requ
ired.
(2
) A
ll ot
her
dim
ensi
ons
are
in a
ccor
danc
e w
ith A
SM
E B
16.5
. (3
) In
con
form
ance
with
AS
ME
B16
.5, s
tud
bolt
leng
ths
do n
ot in
clud
e po
int h
eigh
ts.
(4)
Bol
t len
gths
for
rais
ed fa
ce fl
ange
s in
clud
e al
low
ance
for
orifi
ce a
nd g
aske
t thi
ckne
ss o
f 0.2
5 in
. for
NP
S 4
-12
and
0.38
in. f
or
NP
S 1
4-24
. B
olt l
engt
hs fo
r rin
g ty
pe jo
int f
lang
es in
clud
e al
low
ance
of
0.62
in. f
or N
PS
4-1
0,
0.75
in. f
or N
PS
12-
18, a
nd 0
.88
in. f
or N
PS
20.
(5
) B
ore
is to
be
spec
ified
by
the
purc
hase
r.
(6)
Rin
g jo
int
flang
e in
NP
S 2
4 w
ill r
equi
re a
n an
gula
r met
er ta
p as
sho
wn
in F
ig. 3
.
W
0-
I m
GI
=I
0
0
Ln
4
d
W 0
0-
m
-I
u-
1
D
Ln m
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
l-----
----4
0.
;5
8p&
l on
e or
Tw
o G
-
RaM
Fw
r Ri
ng T
YPO
Join
t
Piiw
R
ing
and
orifk
a Pl
ate
Asse
mbl
y
TABL
E 3
CLA
SS
600
OR
IFIC
E FL
ANG
ES,
WEL
DIN
G
NEC
K2r3
- Bo
re
I3 g E e t VI
-
T T
T T
Leng
th
of
Stud
Bo
lts
[(4)(5
11
liam
e :e
r of
Nom
- in
al
E,
Pipe
Si
ze
OUt-
side
Diam
- et
er
of
Zaise
d Fa
ce
R
Duts
ide
Diam
- et
er
of
Flan
ge
0
rhick
- les
s of
Ia
nge,
M
in.
c
1 Leng
th
rhro
ugh
Hub Y
of
Raise
d Fa
ce
H
iroov
e
ber
1 2.0
0 4.8
8 1.
44
3.19
0.0
6 R1
6 1 '
/2 2.8
8 6.1
2 1.4
4 3.3
2 0.0
6 R2
0 2
3.82
6.50
1.44
3.32
0.06
R23
2'/*
4.12
7.50
1.44
3.44
0.06
R26
3 5.0
0 8.2
5 1.4
4 3.4
4 0.0
6 R3
1
4 6.1
9 10
.75
1.50
4.00
0.25
R37
6 8.5
0 14
.00
1.88
4.62
0.25
R45
8 10
.62
16.5
0 2.1
9 5.2
5 0.2
5 R4
9 10
12
.75
20.0
0 2.5
0 6.0
0 0.2
5 R5
3 12
15
.00
22.0
0 2.6
2 6.1
2 0.2
5 R5
7
14
16.2
5 23
.75
2.75
6.50
0.25
R61
16
18.5
0 27
.00
3.00
7.00
0.25
R65
18
21.0
0 29
.25
3.25
7.25
0.25
R69
20
23.0
0 32
.00
3.50
7.50
0.25
R73
24
27.2
5 37
.00
4.00
8.00
0.25
R77
Ring
Ty
l
Pitc
h Di
am-
Groo
ve
eter
De
pth
P E
2.00
0 0.
250
2.68
8 0.
250
3.25
0 0.
312
4.00
0 0.
312
4.87
5 0.
312
sroov
e W
idth
F
Ra-
dius
at
Bo
tt-
om
rtttu
cial
Oval
Ring
ie
ight
W
t
eter
of
Hu
b X
Hub
Xam
e-
ter
Begi
n-
ling
of
Cham
- fe
r A
0.34
4 0.0
3 1.0
0 2.1
2 1.3
2 0.
344
0.03
1.00
2.75
1.90
0.
469
0.03
1.06
3.31
2.38
0.46
9 0.0
3 1.0
6 3.9
4 2.8
8 0.
469
0.03
1.06
4.62
3.50
6.87
5 0.
312
0.46
9 0.0
3 1.0
6 6.0
0 4.5
0 8.
312
0.31
2 0.
469
0.03
1.06
8.75
6.63
10.6
25
0.31
2 0.
469
0.03
1.06
10.7
5 8.6
3 12
.750
0.
312
0.46
9 0.0
3 1.0
6 13
.50
10.7
5 15
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0.
312
0.46
9 0.0
3 1.0
6 15
.75
12.7
5
16.5
00
0.31
2 0.
469
0.03
1.06
17.0
0 14
.00
18.5
00
0.31
2 0.
469
0.03
1.19
19.5
0 16
.00
!l.OOO
0.
312
0.46
9 0.0
3 1.1
9 21
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18.0
0 !3.
000
0.37
5 0.
531
0.06
1.25
24.0
0 20
.00
!7.25
0 0.
438
0.65
6 0.0
6 1.4
4 28
.25
24.0
0
Drilli
ng
Tem
plat
e
Diam
eter
of
Ho
les
Bolt
Circ
le
Iurn
, be
r of
lole
z
-T 4 8 8 8
I Pai
sed
Ring
Fa
ce
Join
1
3.50
4.50
5.00
5.88
6.62
0.69
0.75
0.81
0.88
0.69
0.75
0.81
0.88
0.81
0.88
8.50
8 1.0
0 1.0
0 11
.50
12
1.12
1.12
13.7
5 12
1.2
5 1.2
5 17
.00
16
1.38
1.38
19.2
5 20
1.3
8 1.3
8
20.7
5 23
.75
25.7
5 28
.50
33.0
0
20
20
20
24
24
-
1.50
1.50
1.62
1.62
1.75
1.75
1.75
1.75
2.00
2.00
sure
Co
n-
eter
of
I
tion TT
la
isec
Ring
Jo
int
I
5.00
5.25
5.00
5.25
5.25
6.00
7.00
7.75
8.75
9.00
9.50
10.2
5 Il.0
0 11
.75
13.2
5
6.50
7.50
8.25
9.25
9.50
10.0
0 10
.75
11.5
0 12
.50
g 13
.75
3 8 c x El
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
GE
NE
RA
L N
OTE
: D
imen
sion
s ar
e in
inch
es.
NO
TES
: (1
) O
ther
NP
T si
zes
may
be
furn
ishe
d if
requ
ired.
(2) W
eldn
eck
flang
es N
PS
3 a
nd s
mal
ler
are
iden
tical
to C
lass
300
flan
ges
exce
pt fo
r bo
lting
and
may
be
use
d fo
r su
ch s
ervi
ce.
(3)
All
othe
r di
men
sion
s ar
e in
acc
orda
nce
with
AS
ME
816
.5.
(4)
Bol
t len
gths
for
rais
ed fa
ce fl
ange
s in
clud
e al
low
ance
for
orifi
ce a
nd g
aske
t thi
ckne
ss o
f 0.2
5 in
. for
NP
S 1
-12
and
0.38
in.
for
NP
S 1
4-24
. B
olt l
engt
hs fo
r rin
g ty
pe jo
int f
lang
es in
clud
e al
low
ance
of 0
.62
in. f
or N
PS
1-1
0, 0
.75
in. f
or N
PS
12-
18,
and
0.88
in
. for
NP
S 2
0.
(5)
In c
onfo
rman
ce w
ith A
SM
E B
16.5
, st
ud b
olt
leng
ths
do
not
incl
ude
poin
t he
ight
s.
(6)
Bor
e is
to b
e s
peci
fied
by
the
purc
hase
r.
(7)
Rin
g jo
int f
lang
e in
NP
S 2
4 w
ill r
equi
re a
n an
gula
r m
eter
tap
as s
how
n in
Fig
. 3.
v)
-I
W
W
U- I I
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
D cn m
Bor
e
Dia
m-
eter
of
P
ress
ure
Con
nec-
ti
on
B
TT
iid
riil
mus
t be
free
from
bu
rs
Y
TAB
LE 4
C
LAS
S 9
00 O
RIF
ICE
FLA
NG
ES, W
ELD
ING
NEC
K'
-
Dia
m-
eter
of
Hub
X
I
OU
t- si
de
Dia
m-
eter
of
R
aise
d Fa
ce
R -
-
5.00
6.19
8.50
10.62
12.75
15.00
16.25
18.50
21 .o
o 23.00
27.25 -
Len
gth
of
Stu
d B
ob
I(
3. (4
)l
Rai
sed
Rin
g I
Face
Jo
int
I R
ing
Typ
e Jo
int (
6)
Dri
llin
g T
emp
late
Dia
met
er
Hu
b
Dia
met
er
Beg
inni
ng
of
Cha
mfe
r A
I+ n
r
n
Len
gth
R
adiu
s Th
roug
h H;b
1 Gr oov] F- 1 1
IB;;; N
um
ber
Spe
cial
O
val
Rin
g H
eig
ht
W
No
mi-
na
l P
ipe
e
Siz
e
1 2
N -
1 Y2
2Y2 -
3 4 6 8 10
12
14
16
18
20
24 -
Flan
ge
For
NPS
2v2 an
d sm
alle
r, use
Cla
ss 1500.
~
6.50
7.50
8.25
9.50
10.00
10.75
I 1.50
12.00
13.75
14.75
Eg
5 2 fi m z v
)
-
8 8 12
12
16
20
20
20
20
20
20 -
-
6.00
7.00
7.75
9.00
9.50
10.25
11.00
11.50
13.00
14.00
17.50 -
0.469
0.469
0.469
0.469
0.469
0.469
0.656
0.656
0.781
0.781
1.062
0.03
0.03
0.03
0.03
0.03
0.03
0.06
0.06
0.06
0.06
0.09
1.06
1.06
1.06
1.06
1.06
1.06
1.31
1.44
1.56
1.56
1.88
5.00
6.25
9.25
11.75
14.50
16.50
17.75
20.00
22.25
24.50
29.50
3.50
4.50
6.63
8.63
10.75
12.75
14.00
16.00
18.00
20.00
24.00
7.50
9.25
12.50
15.50
18.50
21.00
22.00
24.25
27.00
29.50
35.50
1 .oo
1.25
1.25
1.50
1.50
1.50
1.62
1.75
2.00
2.12
2.62
I
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
GEN
ERA
L N
OTE
: D
imen
sion
s ar
e in
inch
es.
NO
TES:
(1
) O
ther
NPT
siz
es m
ay b
e fu
rnis
hed
if re
quire
d.
(2)
All
othe
r di
men
sion
s ar
e in
acc
orda
nce
with
AS
ME
B16
.5.
(3)
In c
onfo
rman
ce w
ith A
SM
E B
16.5
, st
ud b
olt
leng
ths
do n
ot in
clud
e po
int
heig
hts.
(4
) B
olt l
engt
hs fo
r ra
ised
face
flan
ges
incl
ude
allo
wan
ce fo
r or
ifice
and
gas
ket t
hick
ness
of
0.25
in.
for
NPS
3-1
2 an
d 0.
38 i
n. fo
r
(5)
Bor
e is
to b
e sp
ecifi
ed b
y th
e pu
rcha
ser.
(6
) R
ing
join
t fla
nges
larg
er th
an N
PS 1
2 w
ill r
equi
re a
ngul
ar m
eter
taps
as
show
n in
Fig
. 3.
NPS
14-
24.
Bol
t len
gths
for
ring
type
join
t fla
nges
incl
ude
allo
wan
ce o
f 0.6
2 in
. for
NP
S 3
-10
and
0.75
in. f
or N
PS 1
2.
VI x
m
m
t-'
0-
W
0-
I m z
E; m
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
No
mi-
n
al
Pip
e S
ize
1 11/2
2 2'12
3 4 6 8 10
12
14
16
18
20
24
+
P
r
Tid
rill
mus
l be
free
from
bur
rs
Ou
tsid
e D
iam
- et
er
of
Rai
sed
Face
R
2.00
2.
88
3.62
5.00
6.19
8.
50
10.6
2 12
.75
15.0
0
16.2
5 18
.50
21.0
0 23
.00
27.2
5
4.12
Juts
ide
Dia
m-
eter
of
Fl
ange
0
5.88
7.
00
8.50
9.
62
10.5
0
12.2
5 15
.50
19.0
0 23
.00
26.5
0
29.5
0 32
.50
36.0
0 38
.75
46.0
0
Pw
Rin
g an
d O
iifim
Pla
ts
Thic
k-
ness
of
Fl
ange
, M
in.
C
1.50
1.
50
1.50
1.
62
1.88
2.12
3.
25
3.62
4.
25
4.88
5.25
5.
75
6.38
7.
00
8.00
Rai
md Fr
r R
ing
Ty
p J
oh
l A
ssem
bly
TAB
LE 5
C
LASS
150
0 O
RIF
ICE
FLA
NG
ES, W
ELD
ING
NE
CK
2
Sro
ove
Dep
th
E
0.25
0 0.
250
0.31
2 0.
312
0.31
2
0.31
2 0.
375
0.43
8 0.
438
0.56
2
0.62
5 0.
688
0.68
8 0.
688
0.81
2
Rin
g Ty
pe J
oin
t (6)
Gro
ove
Wid
th
F
0.34
4 0.
344
0.46
9 0.
469
0.46
9
0.46
9 0.
531
0.65
6 0.
656
0.80
6
1.06
2 1.
188
1.18
8 1.
312
1.43
8
3adi
us
at
lott
om
rm
a.
0.03
0.
03
0.03
0.
03
0.03
0.03
0.
06
0.06
0.
06
0.06
0.09
0.
09
0.09
0.
09
0.09
Pitc
h D
iam
- et
er
P
Spe
cia
Ova
l R
ing
Hei
gh
i W
1.00
1.
00
1.06
1.
06
1.06
1.06
1.
12
1.31
1.
31
1.56
1.75
2.
00
2.00
2.
12
2.31
2.00
0 2.
688
3.75
0 4.
250
5.37
5
6.37
5 8.
312
10.6
25
12.7
50
15.0
00
16.5
00
18.5
00
21.0
00
23.0
00
27.2
50
Nu
m-
ber
of
Hol
es
4 4 8 8 8 8 12
12
12
16
16
16
16
16
16
Dia
m-
eter
of
H
oles
1.00
1.
12
1.00
1.
12
1.25
1.38
1.
50
1.75
2.
00
2.12
2.38
2.
62
2.88
3.
12
3.62
Leng
th
ihro
ug
h
Hub
Y 3.25
3.
50
4.00
4.
12
4.62
4.88
6.
75
8.38
10
.00
11.1
2
11.7
5 12
.25
12.8
8 14
.00
16.0
0
I Hub
I G
roov
e N
um
- be
r
R16
R
20
R24
R
27
R35
R39
R
46
R50
R
54
R58
R63
R
67
R71
R
75
R79
Dia
met
er
4.12
Dia
m-
eter
of
B
olts
78
1 1 ?$
1'/8
lk4
13/8
178
178
2 2'14
23/4
2'1'
3 3'/2
Rai
sed
Rin
g Fa
ce
Join
t
6.00
6.
25
6.25
6.
50
6.50
7.
00
6.00
6.
50
7.25
7.
25
8.00
8.
50
10.5
0 11
.00
11.7
5 12
.25
13.5
0 14
.00
15.0
0 15
.75
16.2
5 17
.52
17.7
5 19
.00
21.5
0 22
.50
24.5
0 26
.00
19.7
5 21
.00
Ti
6.38
9.
00
14.5
0 11
.50
-
Dia
me-
te
r of
're
ssun
:o
nnec
. tio
n 7i -
1 14
Y4 '/4 '14 /a 92 '4
5;
12
'12 12
72 72 4 5;
3 1 1 1
rn -
4.50
E
6.63
8.
63
p>
10.7
5 2
Dia
m-
eter
of
B
olt
Cir
cle
17.7
5
19.5
0 21
.75
23.5
0 25
.25
30.0
0
4.00
4.
88
6.50
7.
50
8.00
9.50
12
.50
15.5
0 19
.00
22.5
0
25.0
0 27
.75
30.5
0 32
.75
39.0
0
12.7
5
14.0
0 16
.00
18.0
0 20
.00
24.0
0
Len
gth
of S
tud
I Bo
b
Dri
llin
g T
emp
late
i(3
L (4
1
VI
z
m
W
I+ r
w
n-
I m
z
GI
I- I.' n
n
r
0
4
vi
d
r
4 0
0
vi
4
d
w
I+ I+ n-
n-
m
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
GENE
RAL
NO
TE: D
imen
sion
s ar
e in
inch
es.
NO
TES
: (1
) O
ther
NPT
siz
es m
ay b
e fu
rnis
hed
if re
quire
d.
(2)
All
othe
r di
men
sion
s ar
e in
acc
orda
nce
with
AS
ME
B16
.5.
(3) I
n co
nfor
man
ce w
ith A
SME
B16
.5,
stud
bol
t len
gths
do
not i
nclu
de p
oint
hei
ghts
. (4
) B
olt l
engt
hs fo
r ra
ised
face
flan
ges
incl
ude
allo
wan
ce fo
r or
ifice
and
gas
ket t
hick
ness
of 0
.25
in. f
or N
PS
1-1
2 an
d 0.
38 in
. for
(5)
Bor
e is
to b
e sp
ecifi
ed b
y th
e pu
rcha
ser.
(6)
Rin
g jo
int
flang
es la
rger
than
NPS 6
will
req
uire
ang
ular
met
er ta
ps s
how
n in
Fig
. 3.
NP
S 1
4-24
. B
olt
leng
ths
for
ring
type
join
t fla
nges
incl
ude
allo
wan
ce o
f 0.
62 in
. fo
r N
PS
1-6
.
w
r
I m
z
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
Spe
cial
b
diu
s O
val
at
Rin
g Lo
ttom
Hei
ght
rmax
w
0.03
1.00
0.03
1.06
0.03
1.06
0.06
1.19
0.06
1.19
0.06
1.31
0.06
1.44
0.06
1.56
0.09
1.88
0.09
2.00
Dia
m-
eter
of
H
ub
x 2.25
3.12
3.75
4.50
5.25
6.50
9.25
12.00
14.75
17.38
Ot
ress
ure
Con
- ne
c-
tio
n
77
94
/4 5% 51,
/s '/2 '/z '/2 '/2 '/2
1 3
Dia
m-
eter
of
B
olt
C
ircl
e
4.25
5.75
6.75
7.75
9.00
10.75
14.50
17.25
21.25
24.38
Dia
m-
eter
of
B
olts
'/s
ll/s
1 l1/S
1'/4 11/2
2 2 2l/2
274
.. .
Rai
sed
Face
6.00
7.00
7.25
8.00
9.00
10.25
13.75
15.25
19.25
21.25
Num
- be
r of
Holes
4 4 8 8 8 8 8 12
12
12 -
.
Dia
m-
eter
of
H
oles
1.00
1.25
1.12
1.25
1.38
1.62
2.12
2.12
2.62
2.88
TTdr
ill m
u% b
e fr
ee fr
om b
uns
rwl D
Sp
c*l
On a T
wo
r
23 d
eg.
0-
VI 3
m
Rin
g T
yp
. Join
t
TAB
LE 6
C
LAS
S 2
500
OR
IFIC
E FL
AN
GES
, WE
LDIN
G N
ECK
' a3
I+ D-
W
0-
I m
-
Bor
e B
-
)uts
ide
Dia
m-
eter
of
R
aise
d Fa
ce
R
-
)uts
ide
Dia
m-
eter
of
Fl
ange
0
-
Leng
th
'hm
ugh
Hub
Y
-
No
m-
inal
P
ipe
c
Siz
e m
1 2 3 4 6 8 10
12 1 '/2
2Y2
Dia
m-
I Le
ngth
of
I Stu
d H
ub
Dia
m-
eter
B
egin
- ni
ng
of
:har
der
A
Ob
011 -
Rin
g Jo
int
6.25
7.50
7.75
8.50
9.50
10.75
14.50
16.00
20.25
22.50
-
-
Rin
g Ty
pe J
oint
D
rilli
ng
Tem
pla
te
I N
3).
eter
I
Thic
k-
ness
of
Fl
ange
, M
in.
C
-
Sroo
ve
Dep
th
E
Pec
h D
iam
- et
er
P
üroo
vr
Wid
th
F Sr
oove
lu
mbe
i
2.00
2.88
3.62
4.12
5.00
6.19
8.50
10.62
12.75
15.00 -
6.25
8.00
9.25
10.50
12.00
14.00
19.00
21.75
26.50
30.00
1.50
1.75
2.00
2.25
2.62
3.00
4.25
5.00
6.50
7.25
3.62
4.38
5.00
5.62
6.62
7.50
10.75
12.50
16.50
18.25
R18
R23
R26
R28
R32
R38
R47
R51
R55
R60
2.375
3.250
4.000
4.375
5.000
6.188
9.000
11 .oo
o 13.500
16.000
0.250
0.312
0.312
0.375
0.375
0.438
0.500
0.562
0.688
0.688
0.344
0.469
0.469
0.531
0.531
0.656
0.781
0.906
1.188
1.312
1.32
1.90
2.38
3.50
4.50
6.63
8.63
10.75
12.75
2.88
GEN
ERA
L N
OTE
: D
imen
sion
s ar
e in
inch
es.
NO
TES
: (1
) O
ther
NPT
siz
es m
ay b
e fu
rnis
hed
if re
quire
d.
(2) A
ll ot
her
dim
ensi
ons
are
in a
ccor
danc
e w
ith A
SM
E 816.5.
(3) I
n co
nfor
man
ce w
ith A
SM
E B16.5,
stud
bol
t len
gths
do
not i
nclu
de p
oint
hei
ghts
. (4) B
olt l
engt
hs fo
r ra
ised
face
flan
ges
incl
ude
allo
wan
ce fo
r or
ifice
and
gas
ket t
hick
ness
of 0.25 i
n. fo
r N
PS 1-12. B
olt l
engt
hs fo
r
(5) B
ore
is to b
e sp
ecifi
ed by
the
purc
hase
r. (6) R
ing
join
t fla
nges
larg
er th
an N
PS 3 w
ill r
equi
re a
ngul
ar m
eter
taps
as
show
n in
Fig
. 3.
ring
type
join
t fla
nges
incl
ude
allo
wan
ce o
f 0.62 in
. for
NPS
13.
J=
W
z A Ln
n 6" z
I
c4Y
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
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