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JIS B 2240 (1984) (English): Copper alloy pipe

flanges

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igs.nigc.ir jigs

JIS 8*2240 84 II 4933608 0011904 2 I I

UDC 621. 648.412

~APANESE INDUSTRIAL STANDARD

• Basic Dimensions of Copper

Alloy Pipe Flanges

~IS B 2240-1984

•
Trans!ated and Published

by

.Japanese Standards Association

Printed in japan 18

B 2240
igs.nigc.ir jigs
JIS 8*2240 84 II 4933608 0011905 4 II
--

Translation without guarantee

In the event of any doubt arising, the original
standard in Japanese is to be evidence

2·
Copyright by the Japanese Industrial Standards
Sun Aug 05 11:00:53 2007
igs.nigc.ir jigs
JIS 8*2240 84 II 4933608 0011906 6 II

UDC 621.643.412

• 1. Scope
JAPANESE INDUSTRIAL STANDARD

Basic Dimensions of Copper Alloy Pipe Flanges

J I S

B 2240-1984

This Japanese Industrial Standard specifies the basic dimensions of copper

alloy pipe flanges of nominal pressure of 5 K, 10 K and 16 K connecting pipes
and valves which- are used for general pipe arrangem~nts of vapor, air) gas.
water, oil, etc. (hereinafter referred to as the "flange!!).

Remark: The units and numerical values given in { } in this standard

are in accordance with the International System of Units (SI).
and are appended for reference.

2. Relation between States of Fluids and Maximum Working Pressures

• The relation between states of fluids and maximum working pressure shall
be in accordance with Table 1.

• Applicable Standards:

JIS B IOOI-Diameter of Bolt Hole and Counterbore

JIS B 2202-Dimensions for Pipe Flange Facing

JIS B 2203-Tolerances for Pipe Flanges

JIS G 3101-Rolled Steel for General Structure

JIS H 3300- Copper and Copper Alloy-Seamless Pipes and Tubes

JIS H 3320-Copper and Copper Alloy-Welded Pipes and Tubes

• JIS H 5101-Brass Castings

JIS H 5111-Bronze Castings

opyrighl by the Japanese Indllillrial Standards

Sun Aug 05 11:00:54 2007
gs.nigc.ir jigs
JIS 8*2240 84 II 4933608 0011907 8 II

2
B 2240-1984

Table 1
Unit: MPa{kgf/cm 2}

Maximum Pressure of
Nominal State of fluid working hydrostatic test
pressure (reference) (1)
pressure

220°C Vapor, air, gas t oil or O.49{5}

pulsating water (accompa-
1S5°C nied by pressure
max. 0.56{6}
5K variations) 0.98{10}

Steady flow water at a temperature

of not more than l200C (accompa- 0.69 {7}
nied by a few pressure variations)

220°C Vapor, air, gas, oil or 0 •.98{10 }

pulsating water (accompa-
1850C nied by pressure 1. 18{12}
10 K max. variations) 1. 96{20}

Steady flow water at a temperature

of not more than l200C (accompa- 1. 37{14}
nied by a few pressure variations)

220°C Vapor, air, gas, oil or 1. 57{16}

pulsating water (accompa-
185°C nied by pressure 1. 86{19}
16 K max. variations) 3. 14{32}

Steady flow water at a temperature

of not more than 120°C (accompa- 2. 16{22 }
nied by a few pressure variations)

Note (1) This pressure of hydrostatic test is the test pressure in the
case where flanges have been fitted with the pipe and is
given for reference, except where the pressure otherwise
specified.

Remark: Where the temperature or the pressure is in the intermediate

range of vaiues in the iable. ihe maximum working pressure
Or temperature can be ~etermined by interpolation.
3. DImensions

The dimensions of flanges shall be in accordance with Attached Table 1 to

Attached Table 3.
Further, the dimensional tolerances shall be in accordance with JIS B
2203 •

. 4. Materials

The materials which have been taken as the basis of the specificaiton of
dimensions shall be as shown in Table 2.
Furthel', whel'e tbe matedals other than ihose of Table 2 are used, those •
mate.L·~als
shall be subjected to the agreement or the confel'ence between the .....
parties concerned to the delivery.

Copyright by tbe Japanese Industrial Standards

Sun Aug 05 11:00:54 2007
19s.nigc.irjigs
JIS 8*2240 84 II 4933608 0011908 T . .

3
B 2240-1984

• Nominal pressure

5 K
Table 2

Solid flange

BC2, BC6 (2) and

Slip-on flange (3)

YBsC2e) (t) of
BC7 of JIS H 5111. JIS H 5101.
10 K BC7 (5) of
JIS H 5111.
16 K

Notes (2) BC6 and YBsC2 are used where the state of fluid is
at not more than 205°C.

The mateiral of slip-on flange in the case where the pipes

are connected by welding shall be in accordance with
the agreement or the conference between the parties

•
concerned to the delivery.

(4) Pb of YBsC2 should preferably be not more than 1 %.

(5) Where BC7 is used for slip-on brazing flange. the state
of fluid should be over 205°C. Further, Sn and Pb should
preferably be not more than 5 to 6 %and 1 %respectively.

Attached Table 1. Basic Dimensions of Flange of Nominal Pressure of 5 K

Slip-on flange Solid flange

rr "-"I"~
t·
,
,. ,

• <f>D

.,.
I

•
I
L_~~_ __~~~~~~~~~~~
Copyright by the Japanese Industrial Standards
Sun Aug 05 11 :00:54 2007
igs.nigc.ir jigs
JIS 8*2240 84 . . 4933608 0011909 1 . .

4
B 2240-1984

Unit: mrn •
Outside diameter of Outside Nominal
applied pipe Thickness Bolt hole·
Nominal diameter designation
of flange of nange Diameter of of screw
diameter (1) Diameter
(2) bolt circle Number thread
D t C h of bolt
10 16 12.70 75 9 55 4 12 M 10
15 19 15.88 80 9 60 4 12 M 10
20 25.4 22.22 85 10 65 4 12 M 10
25 31. 8 28.58 95 10 75 4 12 M 10
32 38.1 34.92 115 12 90 4 15 M 12
40 45 41. 28 120 12 95 4 15 M 12
I

50 50 53.98 130 14 105 4 15 M 12

65 65. 75 66.68 155 14 130 4 15 M 12
80 75, 76.2 79.38 180 14 145 4 19 M 16
(90) 100 - 190 14 155 4 19 M 16
100 100 104,78 200 16 165 8 19 M 16
125 125 130.18 235 16 200 8 19 M 16
150 150 155.58 265 18 230 8 19 M 16
(175) 150 - 300 18 260 8 23 M 20
200 200 - 320 20 280 8 23 M 20
(225) 200 345 20 305 12 23 M 20
250 250 - 385 22 345 12 23 M 20
300 - 430 22 390 12 23 M 20
350 - 480 24 435 12 25 M 22
400 - 540 24 495 16 25 M 22
450 - - 605 24 555 16 25 M 22
500 - I 655 24 605 20 25 M 22
(550) - 720 26 665 20 27 M 24
600 - I 770 26 715 20 27 M 24

Remarks 1. The flanges of a nominal dimeter given in parentheses shall

not be used as far as possible.

2. The column of outside diameter (1) of applied pipe

shows the outside diameter of the representative pipe
out of those specified in Table 7(1) of JIS H 3300 and
Table 6 of JIS H 3320 and a pipe with an outside diameter
other than specified in these tables may be applied.
Where the pipe wiih an outside diameter other than
these outside diameters is applied, it shall be subjected'
•
to the agreement or the conference between the parties
concerned to the delivery. Provided that in all cases of
these, the pipe with a larger outside diameter than the
inside diameter d2 of gasket shown in Reference Table 1
and Reference Table 2 shall not be applied.
Further, the column of outside dtameter (2) of applied
pipe shows the outside diHmeter of pipe specified in
Table 7 (2) of JiS H 3300.

"
oJ. The diameter of bolt hole iI is in accordance with Gra.de 3
in JIS B 1001 where the nominal designation of screw
thread of bolt is not more than M16 •
:.

CoPyright by the Japanese Industrial Standards

Sun Aug 05 11:00:55 2007
igs.nigc.ir jigs

JIS 8*2240 84 .. 4933b08 0011910 8 ..

5
B 2240-1984

• Reference:
4. The facing shall be the flat face. of JIS B 2202.

The materials of bolt and nut to be used for fastening a

flange shall be SS41 of JIS G 3101. as a rule.

Attached Table 2. Basic Dimensions of Flange of Nominal Pressure of 10 K

Slip-on flange Solid flange

• Nominal
dillmetel'
Outside diameter of
IlppUed pipe

(1) (2)
Outside
diameter
of flange
Thickness
of flange Diameter of
bolt circle
Bolt hole

Number Diameter
Unit: mm
Nominal
designation
of screw
thread
D t C h of bolt
10 16 12.70 90 12 65 4 15 M 12
15 19 15.88 95 12 70 4 15 M 12
20 25.4 22.22 100 14 75 4 15 M 12
25 31. 8 28.58 125 14 90 4 19 M 16
32 38.1 34.92 135 16 100 4 19 M 16
40 45 41.28 140 16 105 4 19 M 16
50 50 53,98 155 16 120 4 19 M 16
65 65. 75 66.68 175 18 140 4 19 M 16
80 75, 76.2 79.38 185 18 150 8 19 M 16
-

•
(90) 100 195 18 160 8 19 M 16
100 100 104, 78 210 18 175 8 19 M 16
125 125 130,18 250 20 210 8 23 M 20
150 150
I 155.58 280 II 22 II 240 8 II 23 M 20
(175) 150 305 22 265 12 23 M 20
200 200 I - 330
I
I
22
I
I
290 12
I
I
23 M 20
I I I I
(225) - i i 310 12 i 23
200
I 359 I
I
22
I
I
I
M 20
250 250 400 24 355 12 I 25 M 22
300 - I 445
I
I
I
24
I
I
I
400 16 I
I
I
25 M 22
350 - I 490 I
I 26 I 445 16 I 25 M22
400 =
I "en
oJVV
I
I
<)Q
"V II 510 15 I
II
27 M 24-
450 - ! I 620 I
I
I
30 I
I
565 20 27 M24
500
(550)
-
- -
675
745
I
I
30
32
I
II
620
680
20
20
I 27
33
M 24
M 30
600 - I ""~
(:;Ii)
I
I
I 32 I 730 24
I
I 33 I lv1 30

Remark: See the Remal'ks 1 to 4 of Attached Table 1. Provided that

"where the nominal designation of screw thread of bolt is M30,

: Reference:
Grade 2 of JIB B 1001 is applied" shall be appended to Remark 3.
See Reference of Attached Table 1.

opyright by the Japanese Industrial Standards

Sun Aug 05 11 :00:55 2007
igs.nigc.ir jigs
JIS 8*2240 84 . . 4933608 0011911 T . .

6
B 2240-1984
Attached Table 3. Basic Dimensions of Flange of Nominal Pressure of 16 K

Slip-on flange

w-' . __. /L_··

Solid flange •
"
, ,
l I'.

<PC
<PD

Unit: mm
Outside diameter of Outside Nominal
applied pipe Thiokness Bolt hole
Nominal diameter designation
of flange of flange = e r o £ of sorew
diameter (1) Diameter
(2) D t It circle Number
II
thread
C of bolt

10 16 12.70 90 12 65 4 15 M 12
15 19 15.88 95 12 70 4 15 M 12
20 25.4 22.22 ·100 14 75 4 15 M 12

25 31.8 28.5B 125 14 90 4 19 M 16

32 3B.l 34.92 135 16 100 4 19 M 16
40 45 41.28 140 16 105 4 19 M 16

50 50 53.9B 155 16 120 8 19 M 16

65 65, 75 66.68 175 18 140 8 19 M 16
80 75, 76.2 79.3B 200 20 160 8 23 M 20

(90) 100 - 210 20 170 8 23 M 20

100 100 104.78 225 22 185 8 23 M 20

•
125 125 130.1B 270 22 225 8 25 M 22

150 150 155.58 305 24 260 12 25 M 22

200 200
II 350 II 26
II 305 12 II 25 M 22
I
II
250 250 I
I
430 I
I
I
I
28
I
I
380 12
I 27 i

I!
M 24

300 II 480 I
!
30 I
!
430 16
I 27 M 24

Remark: See Remarks 1 to 4 of Attached Table 1.

Reference: See Reference of Attached Table 1.

•
Copyright by the Japanese Industrial Standards
Sun Aug 05 11 :00:56 2007
gs.nigc.ir jigs
JIS 8*2240 84

7
B 2240-1984

• "1. The Reference Table 1 shows the inside diameter of solid flange and
dimensions of its neck part.
Reference

Reference Table 1. Dimensions of Solid Flange

d S

Unit: mm

•
rnSide Nominal pressure of I) K Nominal pressure of 10K Nominal pressure of 16 K
Nominal dia~eter
diameter
8 81 b r 8 81 b r 8 81 b r
10 10 4 7 24 5 4 9 28 5 4 9 28 5
15 15 4 7 29 5 5 9 33 5 5 9 33 5
20 20 4 8 36 5 5 10 40 5 5 10 40 5
25 25 4 8 41 6 5 10 45 6 5 10 45 6
32 32 5 9 50 6 6 11 54 6 6 11 54 6
40 40 5 9 58 6 6 11 62 6 6 11 62 6
f
I<
50 50 5 10 70 6 6 12 74 6 6 12 74 6
oS 65 65 5 10 85 6 6 12 89 6 7 13 91 6
~ 80 80 6 11 102 6 7 13 106 6 8 14 108 6
<»
<II
l'S
(90) 90 6 11 112 6 7 13 116 6 8 15 120 6
100 100 6 12 124 6 7 14 128 6 9 16 132 6

I
I<
125
150
125
150
7
7
12
13
149
176
8
8
8
9
15
16
155
182
8
8
10
11
17
19
159
188
8
8
~ (175) 175 8 14 203 8 10 17 209 8 - - -
200 200 8 14 228 8 18 236 8 13 21 242 8

•
11

(225) 225 9 15 255 8 12 18 261 8 - - -

250 250 9 16 282 8 12 20 290 8 15 24 298 10
300 300 10 17 334 8 14
i
21 342 8 , 17 26 . 352 10
I
I 350 340
I
10 II 18
I
I 376
I 10
I 15 I
I
23 386 10 i - I i -
I

II
QJ I I 1
~I 400 400 11 1 19 438 1 10 I
I
16 I 24 448 10 1 - I
I
-
'::1
.~
<»1
1 450 450 11
I
1I
I 21
19 488
I 10 I,
i
16
I 24
I 498 I
10
1
1
I
- I
- - I
I
-
SI 500 500 12 542 ,n 17 25 550 II fI' - I - - I -
I ~v LV
I -- I
~I
1 1
I
(550) 550 12 21 592
II
12 1 18 27 604- II 12 I
~

I
&: 600 600 I
I
I
13
I 21
1
1
I
642 12
1
I 20
•.•~.I~
21
.. _~
654- 1
I
12
II - - I I
I
- - I
1 I 350 335 1 10
1
18 371
1
1 10 15 23
I
I 381
I
iO 1 - I - I
I - I -
I 400
1
<>01\
vov 1
I 11 19 418 I 1
10 16 24 1
I 428 10 - II - I - I
I - I
0.
.'-;" 450 1 430 1 11 468 I
! -
19 10 16 24 1
I \I ! 1 478 '"
LV
,.. --.-.-1 ,
r2 500 I 480 12 21 I 522 I 10
I
17 I1 25 1 530
II 10 - i
I
- -
I

I 600
I
550 I
I
530
580
!
12
13
21
21
I
I
I
572
622 I
12
i2
I
18
20
I
I
I
27
27
584
634 i
12
12
1
1
I
-
- I
-
- II
- -
-
Remark: The flange with a nominal diameter given in parentheses shall

• not be used as far as possible.

Copyright by the Japanese Industrial Standards

Sun Aug 05 11:00:56 2007
igs.nigc.ir jigs
JIS 8*2240 84 II 4933608 0011913 3 II

8
B 2240-1984

2. The Reference Table 2 shows an example of 'the diameter of inserting

hole of the slip-on brazing flange and the dimensions of hub part and the
flared part at the pipe end.

Reference Table 2. Dimensions of Slip-on Brazing Flange

•
One of nominal pressure of 5 K and One of nominal pressure of 5 K and
nominal diameter 10 to 125 and one nominal diameter 150 to 200, one
of nominal pressure of 10 K and of nominal pressure of 10 K and
nominal diameter 10 to 100. nominal diameter 125 to 200,
and further, one of nominal
pressure 16 K.

Brazing

Unit: mm
•
Outside Diameter Nominal pressure of 5K Nominal pressure of 10K Nominal pressure of 16 K
diameter or Insert- Diameter Diameter Diameter
Nominal of Ini hole
diameter applied of hub of hub of hub
T r y e T r y e T r y
pipe do a b a b a b

10 12.70 13.2 - - - - 1.5 4 - - - - 2 4 20 22 26 4 2

15 15.88 16.4 - - - - 1.5 4 - - - - 2 4 20 26 30 4 2
20 22.22 22.7 - - - - 1.5 4 - - - - 2 5 22 33 37 4 2

25 28_58 29.1 - - - - 1.5 4 - - - - 2 5 22 39 43 4 2

32 34.92 35.4 - - - - 1.5 5 - - - - 2 5 24 45 49 4 2
40 41. 28 41. 8 - - - - 1.5 5 - - - - 2 5 24 52 56 4 2

50
65
53.98
66.68
54.5
67.2
- - - -\2
-I?
I-
\
5

I
\
5 I -I
I
-\ -\ -I
I
- - 3
3
6

I
\
26\
6 I ?R II
-~
67\
81 I
71

85
6
6
3
3
I~ I I I I ~~ I
80 79.38 79.9 -1<1 5 I -I -I 3 7 I <IV I 95 101 6 3
I I I I I I
I I I I I I
I~ G II - II I ~n
7 II <J'
I 'n' ,n"
100 104. 78 105.8 -I" -I 3 I '''''
" ''''' "v 3
I I I I I I
125 130.18 I 131. 2 -13 6 I 30 I 146 I 152 ·6 3 - I 34 I 148 154 8 4
I I I I I I
150 11:::'1:'
l:'O
~U\J.UO

I
11:'~ D. I
II '''v. v I
no
&.0
1 D.O
~UO
I
I
11'1A
~''f "
V
I0
I"
I
_I
- I 321 1721 178
I
6 ~
oj
_I ~" I 1'7l!
I uV I " V
I
10<"1
'VL.
0
V .
A

I I I I I

Remark: The outside' diameter of applied pipe shall be in accordance

with the basic outside diameter of copper pipe of Table 7
(2) in JIS H 3S00.

Copyright by the Japanese Industrial Standards

Sun Aug 05 11:00:56 2007
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JIS 8*2240 84 . . 4933b08 0011914 5 . .

9.
B 2240-1984

• 3. The classification and dimensions of gaskets are shown in the following:

( 1) Classification of Gaskets The gaskets shall be classified as shown in

Reference Table 3 according to the used temperature for the nominal
pressure of 5 K, 10 K and 16 K respectively.

Reference Table 3

Used temperature Classification of gaskets

Rubber sheet gasket (1)
100°C max.
Cloth-inserted rubber sheet gasket e)( 2)
Over 100 0 e to 220 0 e Asbestos joint sheet gasket (3)
incl.

e)

•
Note Select the rubber material according to the property of
fluid.
For instance, use an oil resistant rubber for a fluid
of oil system.
Do not use for a fluid of gas system.

Use a gasket with little leakage due to penetration for a fluid of

gas system.

Remark: The gasket of rubber system should preferably be used where

the nominal pressure is not more than 10 K and the state of
fluid is not higher than 100 oe.

(2) Dimensions of Gasket The dimensions of gasket shall be of the full-

face gasket as shown in Reference Table 1 of JIS B 2202.
The thickness of gasket should preferably be 2 mm for rubber sheet
gasket and cloth-inserted rubber sheet gasket, and 1. 5 mm or 3 mm for

•
asbestos joint sheet gasket.

:
-
It ,
V
I.
Copyright by the Japanese Industrial Standards
Sun Aug 05 11:00:57 2007
igs,nigc-irjigs
JIS 8*2240 84 II 4933608 0011915 7 II

•
B 2240-1984
Edition 1

• Date of Est9.blishment:
Date of Revision:
Japanese Text

Established by Minister of International Trade and Industry

1969-09-01

1984-10- 01

Date of Public Notice in Official Gazeiie: 1984-10~04

<,

Investigated by: Japanese Industrial Standards Committee

Di'visional Council on l\1achine Elements

Technical Committee on Flanges

This English translation is published by:

Japanese Standards Association
1-24, Akasaka 4, l\1inato-ku,
Tokyo 107 Japan
(g JSA, 1985
a !'rinied in Tokyo by
Hohbumlta Co..Ltd.

Copyright by the Japanese Industrial Standards

Sun Aug 05 11:00:57 2007