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| ANSI
B16.36 FORGED FLANGES |
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|
Unit: mm |
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| Class
2500 Orifice Flanges |
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| Nominal Pipe Size |
O.D. of Flange face |
O.D. of Raised Flange |
Thk of Hub Min |
Length thru |
Diam. Of Hub |
Diam of Hub of Bevel |
Bore |
Ring type Joint |
Ring Number |
Drilling Template |
Length of Stud Bolts |
| Pitch
Diam |
Diam Bolt Circle |
Number of Holes |
Diam of Holes |
Diam of Bolt (inch) |
Raised face |
Ring Joint |
| D |
G |
t |
T |
X |
A |
B |
P |
| 1 |
159 |
50.8 |
38.1 |
91.9 |
57.2 |
33.5 |
See note (1) to be specified by purchaster |
60.3 |
R18 |
108.0 |
4 |
25.4 |
8-Jul |
152.4 |
158.8 |
| 1 ½ |
203 |
73.2 |
44.5 |
111.3 |
79.2 |
48.3 |
82.6 |
R23 |
146.1 |
4 |
31.8 |
1 1/8 |
177.8 |
190.5 |
| 2 |
235 |
91.9 |
50.8 |
127.0 |
95.3 |
60.5 |
101.6 |
R26 |
171.5 |
8 |
28.4 |
1 |
184.2 |
196.9 |
| 2 ½ |
267 |
104.6 |
57.2 |
142.7 |
114.3 |
73.2 |
111.1 |
R28 |
196.9 |
8 |
31.8 |
1 1/8 |
203.2 |
215.9 |
| 3 |
305 |
127.0 |
66.5 |
168.1 |
133.4 |
88.9 |
127.0 |
R32 |
228.6 |
8 |
35.1 |
1 ¼ |
228.6 |
241.3 |
| 4 |
356 |
157.2 |
76.2 |
190.5 |
165.1 |
114.3 |
|
273.1 |
8 |
41.1 |
1 ½ |
260.4 |
|
| 6 |
483 |
215.9 |
108.0 |
273.1 |
235 |
168.4 |
368.3 |
8 |
53.8 |
2 |
349.3 |
| 8 |
552 |
269.7 |
127.0 |
317.5 |
304.8 |
219.2 |
438.2 |
12 |
53.8 |
2 |
387.4 |
| 10 |
673 |
323.9 |
165.1 |
419.1 |
374.7 |
273.1 |
539.8 |
12 |
66.5 |
2 ½ |
489.0 |
| 12 |
762 |
381.0 |
184.2 |
463.6 |
441.5 |
323.9 |
619.3 |
12 |
73.2 |
2 ¾ |
539.8 |
| |
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| Notes: |
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| (1)
For the inside diameter of Pipes (corresponding to Bore (B) of welding Neck
Flanges), refer to page 54. |
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| (2)
Class 2500 flanges will be furnished with 0.25" (6.4mm) raised face,
which is not included in thickness (t) and length through hub (T) |
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| (3)
Each union includes two carbon steel jack screw bolts with hex nuts. |
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| (4)
Unless otherwise specified, raised face unions are furnished with allow bolt
studs per ASTM A193 Grade B7 with American. |
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| Standard
heavy series hex nuts ASTM A194 Class 2H. |
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| (5)
On ring joint flanges having a groove depth 0.375" (9.5mm) and less, the
distance from the center line of the tap hole to the flange |
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| face
is 0.750" (19.1mm) when the depth of groove is 0.438" (11.1mm) or
greater, changes in drill size or method of drilling are necessary. |
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| (6)
Class 2500 slip-on flanges are not covered by ANSI B16.5. |
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| (7)
Bolt lengths for raised face flanges include allowance for orifice and gasket
thickness of 0.25" (6.4mm) for sizes 1-12 and |
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| 0.38"
(9.7mm) for sizes 14-24. bolt lengths for ring type joint flanges include
allowance of 0.62" (15.7mm) for sizes 1-6. |
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