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Weco
Wing Union Home
WECO Wing Unions - Figure 211
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Insulating Union |
2,000 psi (138 bar) cold working pressure
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Recommended Service
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For production systems with electrolytic
corrosion problems
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| Features |
 | Laminated insulating rings eliminate all metal-to-metal contact;
insulating rings provide 35 million ohms resistance across the union |
| O-ring in male sub provides a positive primary seal |
| Seal ring in female sub provides a positive secondary seal |
| Insulating rings, O-ring, and seal ring can be replaced to extend
union life. |
| Sizes: 1-,1¼-,1½-,2-,2½-,3-,4-inches |
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Nominal
Pipe Size |
(in) |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
4 |
 |
| (mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
| A) |
Clearance Radius |
(in) |
21/8 |
25/8 |
25/8 |
31/8 |
311/16 |
4 |
45/8 |
| (mm) |
54 |
67 |
67 |
79 |
94 |
102 |
117 |
| B) |
Outside
diameter |
(in) |
19/16 |
27/32 |
27/32 |
27/8 |
33/8 |
43/32 |
51/8 |
| (mm) |
40 |
56 |
56 |
73 |
86 |
104 |
130 |
| C) |
End-to-end threaded |
(in) |
2¾ |
31/32 |
31/32 |
315/32 |
43/16 |
4½ |
47/8 |
| (mm) |
70 |
77 |
77 |
88 |
106 |
114 |
124 |
| D) |
Inside
Diameter |
(in) |
11/8 |
115/32 |
111/16 |
25/32 |
29/16 |
33/16 |
43/16 |
| (mm) |
28 |
37 |
43 |
55 |
65 |
81 |
106 |
| ACME
threads/inch |
|
6 |
6 |
6 |
4 |
4 |
4 |
3 |
| Standard |
Standard |
Standard |
Standard |
Standard |
Standard |
Modified |
| Weight |
(lb) |
2 |
3½ |
3 |
6 |
9½ |
16 |
18 |
| (kg) |
.9 |
1.6 |
1.4 |
2.7 |
4.3 |
7.3 |
8.2 |
| Material |
(Sub) |
CS |
CS |
CS |
SF |
CS |
SF |
SF |
| (Nut) |
DI |
DI |
DI |
DI |
DI |
SF |
SF |
| CS - Carbon Steel |
| SF - Steel Forging |
| DI - Ductile Iron
Casting |
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