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Stainless welding neck flanges 150 lbs

Tube, pipe, fittings and flanges

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ASTM A182, ASME B16.5
Sch10S / 40S / 80S / Std

Raised face, smooth finish (125-250 RMS / 3.2-6.3 µm)

● = Sch 40S/Std
■ = Sch 10S
x = Sch 10S / 40S / 80S

Product code examples:

●: FFWN-F53-2-150-40S
●: FFWN-304L-20-150-STD
■: FFWN-316L-2-150-10S
Flange Hub Raised face Drilling template Weight Stock standard
Nom. size O.D.1 D J b h a m g l k No. of
holes		 kg/pce ASTM
304L		 ASTM
316L		 F51
UNS
S31803		 F53
UNS
S32750
in. mm mm mm mm mm mm mm mm mm mm
1/2
3/4
1
1 ¼
21.3
26.7
33.4
42.2
88.9
98.6
108
117.3
15.7
20.8
26.7
35.1
11.2
12.7
14.2
15.7
47.8
52.3
55.6
57.2
21.3
26.7
33.5
42.2
30.2
38.1
49.3
58.7
35.1
42.9
50.8
63.5
15.7
15.7
15.7
15.7
60.5
69.9
79.2
88.9
4
4
4
4
0.480
0.710
1.010
1.330
x
x
x
●/■
x
x
x
●/■
●/■
●/■
●/■
●
■
●
●/■
■
1 ½
2
2 ½
3
48.3
60.3
73
88.9
127
152.4
177.8
190.5
40.9
52.6
62.7
78
17.5
19.1
22.4
23.9
62
63.5
69.9
69.9
48.3
60.5
73.2
88.9
65
77.7
90.4
108
73.2
91.9
104.6
127
15.7
19.1
19.1
19.1
98.6
120.7
139.7
152.4
4
4
4
4
1.720
2.580
4.110
4.920
x
x
●/■
x
x
x
●/■
x
●/■
●/■
●/■
●/■
●/■
●/■
●/■
-
4
5
6
8
114.3
141.3
168.3
219.1
228.6
254
279.4
342.9
102.4
128.3
154.2
202.7
23.9
23.9
25.4
28.4
76.2
88.9
88.9
101.6
114.3
141.2
168.4
219.2
134.9
163.5
192
246.1
157.2
185.7
215.9
269.7
19.1
22.4
22.4
22.4
190.5
215.9
241.3
298.5
8
8
8
8
6.840
9.200
10.600
17.600
x
●/■
●/■
●/■
x
●/■
x
●/■
●/■
●/■
●/■
-
●/■
●
●
-
10
12
14
16
273
323.8
355.6
406.4
406.4
482.6
533.4
596.9
254.5
304.8
336.5
387.3
30.2
31.8
34.9
36.5
101.6
114.3
127
127
273.1
323.9
355.6
406.4
304.8
365.3
400
457.2
323.9
381
412.7
469.9
25.4
25.4
28.6
28.6
362
431.8
476.2
539.7
12
12
12
16
24.000
36.500
51.000
60.000
●/■
●/■
●
●
●/■
●/■
●
●
●/■
●/■
-
-
 -
-
-
-
18
20
24
457.2
508.0
609.6
635.0
698.5
812.8
438.1
488.9
590.5
39.6
42.9
47.8
139.7
144.5
152.4
457.2
508.0
609.6
505.0
558.8
663.4
533.4
584.2
692.2
31.8
31.8
35.1
577.9
635.0
749.3
16
20
20
68.300
84.500
115.000
●
●
●
●
●
●
 -
-
-		 -
-
-

1 O.D. = Outside Diameter

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