forging
 
Welding Neck Flange
Socket-Welding Flange
(1" to3" Only)
Blind
 
DIMENSIONS OF 300lbs FLANGES
ANSI B 16.5　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　mm
NPS(in)
o
c
Y1
Y2
Y3
L
Φ
n
1
125
17.5
27
27
62
89.0
20
4
11/4
135
19.5
27
27
65
98.5
20
4
11/2
155
21.0
30
30
68
114.0
22
4
2
165
22.5
33
33
70
127.0
20
8
11/2
190
25.5
38
38
76
149.0
22
8
3
210
29.0
43
43
79
168.5
22
8
31/2
230
30.5
44
44
81
184.0
22
8
4
255
32.0
48
48
86
200.0
22
8
5
280
35.0
51
51
98
235.0
22
8

6
320
37.0
52
52
98
270.0
22
12
8
380
41.5
62
62
111
330.0
26
12
10
445
48.0
67
95
117
387.5
30
16
12
520
51.0
73
102
130
451.0
33
16
14
585
54.0
76
111
143
514.5
33
20
16
650
57.5
83
121
146
571.5
36
20
18
710
60.5
89
130
159
682.5
36
24
20
775
63.5
95
140
162
686.0
33
24
24
915
70.0
106
152
168
813.0
42
24
 
Tolerances of the size of products
 
NPS(in)\T
C
O
A
B1B2
B3
L
+3
+0.8
+2.4
+1
+0.8
+2
0
-0.8
-0.8
0
-0.8
-2
+3
+0.8
+4.0
+1
+0.8
+2
0
-0.8
-0.8
0
-0.8
-2
+3
+1.5
+4.0
+2
+1.6
+2
0
-1.5
-0.8
0
-1.6
-2
+5
+2
+4.0
+2
+3.2
+2
0
-2
-0.8
0
-1.6
-2
 
 
ALL 14 PAGES/FIRST/2/3/4/5/6/7/8/9/10/11/12/13/LAST
 
 
 
Stainless steel casting