Sheet 8763-1 Page 2
ANSI Class 300 Raised-face Forged Steel Orifice Flanges
dimensions in inches
dia.
length
length
approx. approx.
drilling template
nomi-
minimum dia.
of
thru hub
thru hub
weight
weight
8763B nal outside flange
of
bore
bore
no.
dia.
dia. length
per pair per pair pounds pounds 8763B & C 8763D
8763C pipe dia. thickness raised- 8763D 8763D 8763B & C 8763B of of of of bolt
8763D size
O
Q
face
J
Y
Y
8763C holes bolts holes bolts
circle
½ 5⁄8 5⁄8 5⁄8 ¾ 5⁄8 ¾ ¾ ¾ ¾ 7⁄8
7⁄8
9⁄16 11⁄16 11⁄16
-01* -0*
½ ¾
4 7⁄8 4 7⁄8 4 7⁄8 5 ¼ 6 1⁄8 6 ½ 7 ½ 8 ¼
1 1⁄16 1 1⁄16 1 1⁄16 1 ½ 1 ½ 1 ½ 1 ½ 1 ½ 1 ½ 1 ½ 1 5⁄8 1 7⁄8
2 ¾ 2 ¾ 2 ¾ 2 ½ 2 7⁄8 3 5⁄8 4 1⁄8
.62 .82
2 7⁄16 2 7⁄16 2 7⁄16 3 5⁄16 3 3⁄8 3 3⁄8 3 ½ 3 ½ 3 5⁄8
1 1⁄16 1 1⁄16 1 1⁄16
4 4 4 4
3 3 3
2 5⁄8 3 ¼ 3 ½ 3 7⁄8
15 15 15 17
18 18 18
13⁄32
-1 -2 -3 -4 -5 -6 -7 -8 -9
1
1.05 1.38
1 23⁄64 1 23⁄32 1 31⁄32 2 7⁄16 2 15⁄16 3 9⁄16 4 9⁄16 6 23⁄32 8 23⁄32
1 ¼
¾
1 13⁄16
4 ½
20
1 ½
4 ¼ 4 ¼ 4 ¼ 4 ¼ 4 ¼ 4 ¼ 4 ¾ 5 ½ 5 ¾ 6 ¼
4 ½
1 7⁄8
13⁄16 11⁄16 13⁄16 13⁄16 13⁄16 13⁄16 15⁄16
1.610 2.067 2.469 3.068 4.026 6.065 7.981 10.020 12.000 13.250
4 8 8 8 8
19 23 31 39 60
25 27 35 43 66
1 15⁄16
2
5
2 ½
5 7⁄8 6 5⁄8 7 7⁄8
2
3 4 6 8
5
2 1⁄16 2 1⁄8 2 1⁄8 2 7⁄16 2 5⁄8 2 7⁄8 3 ¼ 3 ½ 3 ¾ 4 3⁄16 3
6 3⁄16
10
12 ½
8 ½
3 15⁄16 4 3⁄8 4 5⁄8
10 5⁄8
12 12 16 16
100 134 196 281 380 596 691 781
106 152 216 327 448 620 741 887
10 5⁄8 12 ¾
15
13
17 ½ 20 ½
15 ¼ 17 ¾ 20 ¼ 22 ½ 24 ¾
10 7⁄8 12 7⁄8 14 3⁄16 16 3⁄16 18 3⁄16 20 3⁄16 24 3⁄16
1 1⁄8 1 ¼ 1 ¼ 1 3⁄8 1 3⁄8 1 3⁄8 1 5⁄8
-10 -12 -14 -16 -18 -20 -24
10 12 14
1
5 1⁄8 5 5⁄8
1 1⁄8 1 1⁄8 1 ¼ 1 ¼ 1 ¼ 1 ½
2
15
16 ¼
2 1⁄8
23
20
25 ½
2 ¼ 2 3⁄8 2 ½ 2 ¾
18 ½
15.25 5 ¾ 17.25 6 ¼ 19.25 6 3⁄8 23.25 6 5⁄8
6 ¾
16 18 20 24
20 24 24 24
28
21
7
30 ½
7 ¼
23
27 32
27 ¼
36
8
1201
1311
½ " drill--for sizes 4" and over 3⁄8 " drill--for size 3" ¼ " drill--for sizes
½ " drill--for sizes 4" and over 3⁄8 " drill--for size 3" ¼ " drill--for sizes
½ " drill--for sizes 4" and over 3⁄8 " drill--for size 3" ¼ " drill--for sizes
½ " pipe plug
½ " pipe plug
2 ½ " and under
½ " pipe plug
2 ½ " and under
2 ½ " and under
J
Y
Y
Y
15⁄16 " 15⁄16 "
15⁄16 " 15⁄16 "
15⁄16 " 15⁄16 "
Q
1⁄16 "
1⁄16 "
Q
1⁄16 "
Q
1"
1"
1"
O
O 8763B Threaded
O
8763C Slip-on Welding
8763D Welding Neck
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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