Capacities | Metering Orifice
ORIFICE BORE DIAMETER OF 8694A METERING ORIFICES
T ABLE B2. Orifice ID, inches (mm)
Gas Pipe Size Code, 8694A-
Plate No.* 90 108 130 156 186 225 270 324 387 468 558 675
-01 ( ½ ")
-0
-1
-2
-3
-4
-5
-6
( ¾ ")
(1")
(1 ¼ ")
(1 ½ ")
(2")
(2 ½ ")
(3")
0.383(9.73) 0.419(10.64) 0.455(11.56) 0.496(12.60) 0.539(13.69) 0.586(14.88) 0.634(16.10) 0.658(16.71)‡
0.604(15.34)
810
0.66(16.76)
915‡ 972 1160 1400 1670
0.718(18.24) 0.781(19.84) 0.85(21.59) 0.918(23.32)
1890‡ 2000 2400 2880
0.989(25.12)
1.110 (28.19) 1.204 (30.58) 1.156(29.36)‡
2970‡ 3450 4150 4810‡ 4970 6000 7200 7286‡ 8640
1.475(37.47)‡
10350 11950‡ 12450 15700‡
Note: See Bulletin 8697 for unavailable sizes
Bulletin 8694A Page 4
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