FMC Weco Wing Union Catalog

Weco Original
Wing Unions
®
The widest selection of fast, high-pressure
connections in the oilfield
Standard-service wing unions
Sour-gas wing unions
Tank unions
Air-o-unions
Suction-hose unions
Catalog WU-11/96
ufacturi
Quality
n
g
M
an
ISO-9001
C
n
Systems
er
tificatio
2,000
2,000
2,000
2,500
4,000
6,000
6,000
10,000
10,000
15,000
20,000
NA
206
207
211
400
400
600
602
1002
1003
1502
2002
2202
6.
7.
5.
4.
1.
2.
3.
NA
30,000
22,500
15,000
15,000
9,000
9,000
6,000
3,750
3,000
3,000
3,000
3,000
1,500
Test
14.
13.
9.
10.
11.
12.
8.
22,500
NA
15,000
11,250
11,250
9,000
NA
6,000
3,750
NA
NA
NA
NA
NA
Test
(in)
(mm)
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
1 1⁄2
40
✓
✓
✓
✓
✓
✓
1⁄
32
✓
1
25
14
Figure 1502 in 4-inch size available for 3 1/2-inch ID tubing, buttweld or nonpressure seal configuration only.
Figure 2002 in 3-inch size available for 3-inch ID tubing.
Figure 1003 in 5-inch size available with butt-weld ends only.
Available with butt weld ends only.
All unions for sour gas service are painted olive green, stamped
“SOUR GAS” or NACE MR-01-75 and have specially modified
material properties.
5- and 6-inch sizes rated at 7,500 psi CWP and 11,250 psi test;
5- and 6-inch unions for sour gas service rated at 5,000 psi CWP
and 7,500 psi test.
4- and 5-inch sizes rated at 7,500 psi CWP and 11,250 psi test;
4- and 5-inch unions for sour gas service rated at 5,000 psi CWP
and 7,500 psi test.
15,000
NA
10,000
7,500
7,500
6,000
NA
4,000
2,500
NA
NA
NA
NA
NA
Cold Working
Sour Gas Service (see note 12)
Pressure Rating (psi)
Butt-weld available. Consult factory for wall thickness.
Nonpressure seal configurations available.
Power make-up must be used for line pipe threaded connections to
achieve rated cold working pressure.
Line pipe threads are not offered for sour gas service in this figure
number.
Line pipe threads are not recommended for sour gas service above
4-inches nominal pipe diameter.
Figure 400 available in 5 1/2- to 7-inch OD with casing threads.
Figure 1002 also available in 2 1/2-inch EUE: 5- and 6-inch sizes
available with butt-weld ends only.
Notes: • NA - Not Available
• All end connections are line pipe threads unless
otherwise noted.
2,000
200
Cold Working
Standard Service
1,000
Assembly
Color Key
Standard Service
100
Figure
Number
✓
✓
✓
✓
✓
✓
✓
✓
✓
5
125
✓
✓
✓
✓
✓
6
150
✓
✓
✓
✓
8
200
✓
11
9,11
1,2,3,8
1,3,10,
14
1,2,3,
7,13
1,2
1
1
1,5,6
1
✓
1
NOTES
1
✓
12
300
✓
10
250
FMC manufactures Weco sour gas wing unions in accordance with the
National Association of Corrosion Engineers (NACE) Standard MR-01-75
and the American Petroleum Institute’s (API) Standard RP-14E.
Sour gas service
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
4
100
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
3
80
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
21⁄2
65
2
50
Nominal Pipe Size
Quick Reference Chart
Weco Original Wing Unions
Why you should standardize with
Weco Original Wing Unions
Widest selection in the oilfield
FMC offers the most complete line of
standard service and sour gas wing unions
with sizes ranging from 1- to 12-inches in
diameter with working pressures up to 20,000
psi. Unions are available with line pipe or
tubing threads, butt-weld, or nonpressurethread seal end connections.
Positive sealing designs
Weco wing union seals vary according to
pressure and application. All wing unions
provide positive, pressure-tight sealing.
For low-pressure services (1,000 to 2,000
psi), the spherical surface of the male sub and
the conical surface of the female sub form a
metal-to-metal seal. This ball-and-cone seal
remains leak-proof even when one surface is
slightly pitted or misaligned.
Most medium-pressure models (2,000 to
4,000 psi) supplement the metal-to-metal seal
with a resilient O-ring in the male sub.
Weco high-pressure unions (6,000 to
20,000 psi) feature a replaceable, lip-type
seal ring in the female sub. This primary
seal protects the secondary metal-to-metal
seal from abrasion and corrosion while
minimizing flow turbulence.
The Weco nonpressure-thread seal
option is designed for abrasive, highpressure applications where welded
connections are undesirable. (Details on
this design can be found on page 6.)
Fast make-up and break-out
Three-lug nuts and rugged self-locking
ACME threads provide fast make-up and
break-out regardless of position or space
restrictions. No special tools are required.
Simple identification
Interchangeable parts
All Weco parts of the same size, pressure
rating, and figure number are interchangeable.
This feature makes it easy to match male and
female subs that are frequently made-up and
broken-out. And, because FMC makes every
Weco wing union to the same rigid standards,
you get a quick and positive seal every time.
Rigid quality control
Weco unions are produced using the
finest raw materials, tooling procedures, and
heat-treating techniques available. Each union
is carefully inspected to assure long, dependable service in the most extreme conditions.
Weco wing unions, like all pressure
containing equipment, require special care and
use. See the inside back cover for complete
information.
Weco standard service wing unions are
color coded for quick identification. Sour
gas wing unions are stamped “sour gas”
using low-stress dot stamping and painted
with a green, zinc-chromate primer unique to
sour gas equipment.
Table of Contents
Weco Wing Unions
Figure 100 ..................................................................
Figure 200 ..................................................................
Figure 206 ..................................................................
Figure 207 (Blanking union) .....................................
Figure 211 (Insulating union) ....................................
Figure 400 ..................................................................
Figure 600 ..................................................................
Figure 602 ..................................................................
Figure 1002 ................................................................
Figure 1003 (Misaligning union) ...............................
2
2
2
3
3
3
4
4
4
5
Figure 1502 ................................................................
Figure 2002 ................................................................
Figure 2202 ................................................................
Sour Gas Service ...............................................................
Nonpressure-Thread Seal Connection ..............................
Tank Unions ......................................................................
Air-o-Unions .....................................................................
Suction-Hose Unions ........................................................
Specifications ....................................................................
Warnings and Safety Instructions .....................................
1
5
5
6
6
6
7
7
7
8
12
Weco Original Wing Unions
Figure 100
1,000 psi (69 bar) cold working pressure
Features
• Pressure-tight make-up with hammer
• Economical, low-pressure union
Recommended service
Manifold and line connections
Figure 200
2,000 psi (138 bar) cold working pressure
Recommended service
Features
• Economical, general-purpose union
• 1- to 4-inch sizes
• Butt-weld available
General-service manifolds and lines
Figure 206
2,000 psi (138 bar) cold working pressure
Recommended service
Manifold and line connections, suction
service, and corrosion service
Features
• O-ring in male sub improves sealing and
protects metal-to-metal seal against
corrosion
• Replaceable O-ring extends union
service life
• 1- to 10-inch sizes
See Specifications Table (page 8) for sizes, dimensions, weights, and materials.
2
Weco Original Wing Unions
Figure 207
Blanking union
2,000 psi (138 bar) cold working pressure
Recommended service
To seal manifold connections and protect
union threads
Figure 211
Insulating union
2,000 psi (138 bar) cold working pressure
Recommended service
For production systems with electrolytic
corrosion problems
Figure 400
4,000 psi (276 bar) cold working pressure
through 4-inch sizes; 2,500 psi (172 bar)
cold working pressure, 5- through
12-inch sizes
Recommended service
Manifold and line connections, pump
suction, and mud service
Features
• Parts are interchangeable with Figs. 200
and 206
• O-ring on blanking cap ensures a
leak-free seal
• Raised lugs on cap allow for make-up
with a hammer
• Available in butt-weld
• Cap can be tapped for pressure gauge if
specified
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
Features
• 2 1/2- through 12-inch sizes have O-rings
for primary seal
• Butt-weld available
• Available for sour gas service: 2,500 psi
(172 bar) cold working pressure,
5- through 12-inch sizes; 4,000 psi
(276 bar) coldworking pressure,
1- through 4-inch sizes
See Specifications Table (pages 8 and 9) for sizes, dimensions, weights, and materials.
3
Weco Original Wing Unions
Figure 600
6,000 psi (414 bar) cold working pressure
Features
• Bronze seat provides primary seal; will
not rust in water services
Recommended service
Steam service, boiler connections,
manifold, and line connections for
production, drilling, and well servicing
Figure 602
6,000 psi (414 bar) cold working pressure
Recommended service
Manifold and line connections and mud
service
Figure 1002
10,000 psi (690 bar) cold working pressure
through 4-inch sizes; 7,500 psi (517 bar)
cold working pressure, 5- and 6-inch sizes
Recommended service
Cementing, fracturing, acidizing, testing,
and choke-and-kill lines
Features
• Compact
• Replaceable, lip-type seal provides
primary seal, protects secondary
metal-to-metal seal, and minimizes
flow turbulence
• Butt-weld available
• Available for sour gas service: 6,000 psi
(414 bar) cold working pressure
Features
• Replaceable, lip-type seal provides
primary seal, protects secondary
metal-to-metal, and minimizes flow
turbulence
• Butt-weld available
• Available for sour gas service: 7,500 psi
(517 bar) cold working pressure
• 5- and 6-inch sizes have O-rings for
primary seals
See Specifications Table (pages 9 and 10) for sizes, dimensions, weights, and materials.
4
Weco Original Wing Unions
Figure 1003
Misaligning union
10,000 psi (690 bar) cold working pressure,
2- and 3-inch sizes; 7,500 psi (517 bar) cold
working pressure, 4- and 5-inch sizes
Recommended service
Features
• Ball seat provides positive seal with up to
71/2˚ misalignment; 2-inch model up
to 4˚
• Replacement O-ring on male sub provides
primary seal, and protects metal-to-metal
seal against abrasion and corrosion
• Available with threaded or butt-weld ends
For high-pressure connections where lines
cannot be aligned
Figure 1502
Features
Cementing, fracturing, acidizing, testing,
and choke-and-kill lines
• Replaceable, lip-type seal provides
primary seal, protects secondary
metal-to-metal seal, and minimizes flow
turbulence
• Butt-weld available
• Available for sour gas service: 10,000 psi
(690 bar) cold working pressure; buttweld or nonpressure-thread seal
configurations only
Figure 2002
Features
15,000 psi (1034 bar) cold working pressure
Recommended service
20,000 psi (1380 bar) cold working pressure
Recommended service
Cementing, fracturing, acidizing, testing,
and choke-and-kill lines
• Replaceable, lip-type seal provides
primary seal, protects secondary
metal-to-metal seal, and minimizes flow
turbulence
• 2- and 3-inch line sizes
• Butt-weld configurations only
See Specifications Table (page 11) for sizes, dimensions, weights, and materials.
5
Weco Original Wing Unions
Figure 2202
15,000 psi (1034 bar) cold working pressure
Recommended service
Especially designed for sour gas service
Features
• Meets National Association of Corrosion
Engineers Standard MR-01-75 and
American Petroleum Institute RP-14E
• Heat-treated components are 100%
tested for hardness
• Fluoroelastomer seal rings
• Butt-weld only
• Stamped “sour gas” using low-stress dot
stamping and painted with a green
zinc-chromate primer to assure quick
identification
See Specifications Table (page 11) for sizes, dimensions, weights, and materials.
Sour gas service
FMC manufactures Weco sour gas
wing unions in accordance with the
National Association of Corrosion
Engineers (NACE) Standard MR-01-75
and American Petroleum Institute (API)
Standard RP-14E. These outstanding,
field proven unions are specially heat
treated for controlled hardness. For fast,
sure identification, each Weco sour gas
Nonpressure-thread
seal connection
The Weco, nonpressure-thread seal
option is especially designed for abrasive,
high-pressure services where welded
connections are undesirable. This design
provides strong, permanent end connections without butt welding. The union
ends are shop assembled to pipe or tubing.
union is stamped “sour gas” using lowstress dot stamping and painted with a
green zinc-chromate primer that is unique
to sour gas equipment. FMC uses
fluoroelastomer seals or O-rings in all sour
gas unions, but does not warrant the
performance of any elastomer for sour gas
service. (See Quick Reference Chart for
model numbers, pressures, and sizes.)
CAUTION: It is possible to interchange
sour gas parts with standard service
products. Users must adopt safe practices
for identification, installation, use,
maintenance, and storage of sour gas
equipment. (See “Warnings and Safety
Instructions” on inside back cover.)
An epoxy thread-locking compound is
used to secure the connection. All threads
are isolated from the line fluid by the seal
ring, and the smooth bore assures minimum turbulence, decreases washouts, and
reduces chemical, acid, sand, or cement
build-up around the pipe ends. Connection threads are API round tubing threads
for extra strength. Nonpressure-thread
seal configurations are available in Figures
602, 1002, and 1502 wing unions.
Tubing or pipe
Male sub
Seal ring
Wing nut
Female sub
Nonpressure-thread seal connection
6
Other Weco Unions
Tank unions
150 psi (10 bar) maximum line pressure
Recommended service
Mud tanks, mud tank connecting lines,
and pump suction flanges
Air-o-unions
150 psi (10 bar) maximum line pressure
Recommended service
Mud suction and return lines and lowpressure fluid lines
Features
• Molded nitrile seal provides
a compression seal
• Makes up with hammer
• Elongated cross-section of seal
ring ensures greater sealing surface
when in contact with the pipe
• Tank union accepts up to 7˚ pipe
misalignment
• Available in 6-, 8-, 10-, and 12-inch sizes
• 6-, 8-, and 10-inch unions may be socket
welded to pipe, or butt welded to tubing.
12-inch unions require butt welds.
Features
• Shot of rig air inflates tube to seal
around pipe
• Fast, easy make-up without
close alignment
• Allows pipe expansion or
misalignment without breaking
the seal
• No nuts, bolts, or wrenches required
• Available in 4-, 6-, 8-, 10-, 12-, 13-,
and 16-inch sizes
Suction-hose unions
Recommended service
Mud system suction lines
Features
Socket weld
• Replaceable O-ring
• Choice of end fittings
• Secondary metal-to-metal seal
• Socket welded, threaded, or hosed
Line pipe threads
Hose nipple
Socket weld with
female plug assembly
See Specifications Table (page 12) for sizes, dimensions, weights, and materials.
7
Weco Wing Union Specifications
Figure 100
Nominal pipe
size
(in.)
(mm)
2
50
2 1 ⁄2
65
3
80
4
100
6
150
8
200
A Clearance
radius
(in.)
(mm)
3 3⁄16
81
3 15⁄16
100
4 1⁄2
114
5 5⁄16
135
6 15⁄16
176
8 7⁄32
209
B Outside
diameter
(in.)
(mm)
2 29⁄32
73
3 1 ⁄4
83
4
102
5 3⁄16
132
7 5⁄16
186
9 15⁄32
241
C End-to-end
threaded
(in.)
(mm)
3 5⁄8
92
4 9⁄32
109
4 7⁄8
124
5 3⁄4
146
6 23⁄32
171
7 3⁄16
183
D Inside
diameter
(in.)
(mm)
2 5⁄32
55
2 9⁄16
65
3 3⁄16
81
4 3⁄16
106
6 9⁄32
160
8 1⁄4
209
3
Modified
3
Modified
3
Modified
3
Modified
3
Standard
3
Standard
5 3⁄4
2.6
9 1 ⁄4
4.2
14
6.4
21 3⁄4
10
45
20
64 1⁄4
29
D
DI
DI
DI
DI
DI
DI
DI
DI
DI
DI
DI
DI
B
ACME threads
per inch
Weight
(lb)
(kg)
Material
(Sub)
(Nut)
A
C
DI — Ductile iron casting
Figure 200 and 206
Nominal pipe
size
(in.)
(mm)
1
25
1 1⁄4
32
1 1⁄2
40
2*
50
2 1 ⁄2
65
3
80
4
100
6
150
8
200
10
250
A Clearance
radius
(in.)
(mm)
1 31⁄32
50
2 1⁄4
57
2 1⁄2
64
3
76
3 9⁄16
90
4
102
4 11⁄16
119
6 1 ⁄4
159
7 7⁄16
189
9
229
B Outside
diameter
(in.)
(mm)
1 19⁄32
40
2
51
2 1⁄4
57
2 29⁄32
74
3 5⁄16
84
4 3⁄32
104
5 1⁄8
130
7 1 ⁄2
191
9 9⁄16
243
11 1⁄2
292
C End-to-end
threaded
(in.)
(mm)
2 19⁄32
66
2 25⁄32
71
2 25⁄32
71
3 9⁄16
90
4 1 ⁄8
105
4 17⁄32
115
5
127
6 21⁄32
169
7 3⁄16
183
9 3⁄32
231
D Inside
diameter
(in.)
(mm)
1 1 ⁄8
28
1 15⁄32
37
1 11⁄32
43
2 5⁄32
55
2 9⁄16
65
3 3⁄16
81
4 3⁄16
106
6 9⁄32
160
8 1⁄4
209
10 5⁄16
262
6
Standard
6
Standard
6
Standard
4
Standard
4
Standard
4
Standard
3
Modified
3
Standard
3
Standard
3
Standard
ACME threads
per inch
Weight
(lb)
(kg)
1 3 ⁄4
.8
2 1⁄4
1.0
2 3⁄4
1.2
5
2.3
8 3 ⁄4
4.0
13 1⁄2
6.1
18 1⁄2
8.4
42 1⁄2
19
65
29
90
41
Material
(Sub)
(Nut)
CS
DI
CS
DI
CS
DI
DI
DI
SF
DI
SF
SF
SF
SF
SF
SC
SF
SC
SF
SC
CS — Carbon steel
SF — Steel forging
SC — Steel casting
DI — Ductile iron casting
* The dimensions and materials for figure 200 and figure 206 steel forging hubs are:
B. Outside diameter 2 13⁄16 (71), C. End-to-end 3 1⁄4 (83).
Figure 207
Nominal pipe
size
(in.)
(mm)
3
80
4
100
6
150
8
200
10
250
A Clearance
radius
(in.)
(mm)
5 3⁄4
146
7 3⁄16
135
9 15⁄16
252
12 3⁄8
314
14 1⁄2
368
B Outside
diameter
(in.)
(mm)
4 3⁄32
104
5 1⁄8
130
7 1⁄2
191
9 9⁄16
243
11 1⁄2
292
C End-to-end
threaded
(in.)
(mm)
3 3⁄4
95
4 5⁄16
109
5 13⁄16
148
8 5⁄8
219
9 11⁄16
246
D Inside
diameter
(in.)
(mm)
3 3⁄16
81
4 3⁄16
106
6 9⁄32
160
8 1⁄4
209
10 5⁄16
262
4
Standard
3
Modified
3
Standard
3
Standard
3
Standard
ACME threads
per inch
Weight
(lb)
(kg)
10
4.5
16 1⁄4
7.4
38
17
70 1⁄2
32
96
44
Material
(Sub)
(Nut)
SF
SC
SF
SF
SF
SC
SF
SC
SF
SC
SF — Steel forging
SC — Steel casting
8
Weco Wing Union Specifications
Figure 211
Nominal pipe
size
(in.)
(mm)
1
25
1 1⁄ 4
32
1 1⁄2
40
2
50
2 1⁄2
65
3
80
4
100
A Clearance
radius
(in.)
(mm)
2 1⁄ 8
54
2 5⁄ 8
67
2 5⁄8
67
3 1⁄8
79
3 11⁄16
94
4
102
4 5⁄8
117
B Outside
diameter
(in.)
(mm)
1 9⁄16
40
2 7⁄32
56
2 7⁄32
56
2 7⁄8
73
3 3⁄8
86
4 3⁄32
104
5 1⁄8
130
C End-to-end
threaded
(in.)
(mm)
2 3⁄ 4
70
3 1⁄32
77
3 1⁄32
77
3 15⁄32
88
4 3⁄16
106
4 1⁄2
114
4 7⁄8
124
D Inside
diameter
(in.)
(mm)
1 1⁄ 8
28
1 15⁄32
37
1 11⁄16
43
2 5⁄32
55
2 9⁄16
65
3 3⁄16
81
4 3⁄16
106
6
Standard
6
Standard
6
Standard
4
Standard
4
Standard
4
Standard
3
Modified
ACME threads
per inch
Weight
(lb)
(kg)
2
.9
3 1⁄ 2
1.6
3
1.4
6
2.7
9 1⁄2
4.3
16
7.3
18
8.2
Material
(Sub)
(Nut)
CS
DI
CS
DI
CS
DI
SF
DI
CS
DI
SF
SF
SF
SF
CS — Carbon steel
SF — Steel forging
DI — Ductile iron casting
Figure 400
Nominal pipe
size
(in.)
(mm)
2
50
2 1⁄2
65
3
80
4
100
5 1 ⁄2
140
6
150
7
175
8
200
10
250
12
300
A Clearance
radius
(in.)
(mm)
3 1 ⁄2
89
4 1⁄32
103
4 3⁄8
111
5
127
5 13⁄16
148
6 3⁄4
171
6 3⁄4
171
7 13⁄16
198
9 19⁄32
244
10 23⁄32
272
B Outside
diameter
(in.)
(mm)
3 1⁄16
78
3 1⁄2
89
4 5⁄32
106
5 7⁄32
133
6 1 ⁄4
159
7 3⁄4
197
7 3⁄4
197
9 19⁄32
244
11 3⁄4
298
14
356
C End-to-end
threaded
(in.)
(mm)
5 1 ⁄4
133
6 1⁄16
154
6 7⁄32
158
8 7⁄32
209
10 15⁄32
266
11 1⁄16
281
11 1⁄16
281
11 7⁄16
291
10 5⁄8
270
10 15⁄16
278
D Inside
diameter
(in.)
(mm)
2 5⁄32
55
2 9⁄16
65
3 3⁄16
81
4 3⁄16
106
5 3⁄32
129
6 9⁄32
160
6 7⁄32
158
8 1⁄4
209
10 5⁄16
262
12 11⁄32
313
3
Standard
3
Standard
3
Stardard
3
Standard
3
Standard
3
Standard
3
Standard
3
Standard
3
Standard
3
Standard
10 1⁄2
4.8
16
7.3
19
8.6
29 1⁄4
13
47 1⁄2
22
63 1⁄2
29
61 1⁄4
28
94 3⁄4
43
150
68
163 3⁄4
74
SF
SF
SF
SF
SF
SF
SF
SF
SF
SC
SF
SC
SF
SC
SF
SC
SF
SC
SF
SC
ACME threads
per inch
Weight
(lb)
(kg)
Material
(Sub)
(Nut)
SF — Steel forging
SC — Steel casting
Figure 600
Nominal pipe
size
(in.)
(mm)
1
25
1 1 ⁄2
40
A Clearance
radius
(in.)
(mm)
2 5⁄16
59
3 3⁄16
81
B Outside
diameter
(in.)
(mm)
1 3 ⁄4
44
2 9⁄16
65
C End-to-end
threaded
(in.)
(mm)
3 9⁄16
90
4 7 ⁄8
124
D Inside
diameter
(in.)
(mm)
1 1 ⁄8
28
ACME threads
per inch
1
11
⁄16
43
A
2 1 ⁄2
65
3
80
4
100
4 5⁄32
106
4 7⁄16
113
5 5⁄16
135
3
76
3 1 ⁄2
89
4 3⁄16
106
5 1 ⁄4
133
6 13⁄32
163
7 9⁄16
192
8 3⁄4
222
10 1⁄16
256
2 5⁄32
55
2 9⁄16
65
3 3⁄16
81
4 3⁄16
106
2
50
3
11
⁄16
94
6
Standard
4
Standard
2
Standard
2
Standard
2
Standard
2
Standard
Weight
(lb)
(kg)
3 1 ⁄4
1.5
9 1 ⁄4
4.2
14 1⁄2
6.6
20
9.1
27 1⁄4
12
40
18
Material
(Sub)
(Nut)
CS
SF
CS
SF
SF
SF
CS
SC
SF
SF
AS
SF
CS —
SF —
SC —
AS —
Carbon steel
Steel forging
Steel casting
Alloy steel
9
C
D
B
Weco Wing Union Specifications
Figure 602
Nominal pipe
size
(in.)
(mm)
1
25
1 1⁄ 4
32
1 1⁄2
40
2
50
2 1⁄2
65
3
80
4
100
A Clearance
radius
(in.)
(mm)
2 3⁄ 8
60
3 1⁄ 4
83
3 1⁄4
83
3 5⁄8
92
3 7⁄8
99
4 1⁄2
114
5 3⁄16
132
B Outside
diameter
(in.)
(mm)
1 3⁄ 4
44
2 9⁄16
65
2 9⁄16
65
2 31⁄32
75
3 1⁄2
89
4 5⁄32
106
5 7⁄32
133
C End-to-end
threaded
(in.)
(mm)
3 17⁄32
90
4 7⁄ 8
124
4 7⁄8
124
5 1⁄4
133
6 1⁄8
156
6 1⁄4
159
8 1⁄4
210
D End-to-end
butt-weld*
(in.)
(mm)
3 17⁄32
90
4 7⁄ 8
124
4 11⁄16
119
5 1⁄16
129
5 5⁄8
143
5 7⁄16
138
5 11⁄16
144
E Inside
diameter
(in.)
(mm)
1 1⁄ 8
28
1 13⁄32
36
1 11⁄16
43
2 1⁄16
52
2 9⁄16
65
3 3⁄16
81
4 3⁄16
106
6
Standard
4
Standard
4
Standard
3
Modified
3
Modified
3
Modified
3
Modified
ACME threads
per inch
Weight
(lb)
(kg)
3 1⁄ 4
1.5
10
4.5
9 1⁄2
4.2
12
5.4
16
7.3
21
10
30
14
Material
(Sub)
(Nut)
CS
SF
CS
SF
CS
SF
CS
SF
CS
SF
CS
SF
CS
SF
* Schedule 160
CS — Carbon steel
SF — Steel forging
Figure 1002
Nominal pipe
size
(in.)
(mm)
1
25
1 1⁄4
32
1 1⁄2
40
2
50
2 1⁄2
65
2 1⁄2 (EUE)
65
3
80
4
100
5
125
6
150
A Clearance
radius
(in.)
(mm)
2 7⁄32
56
3 1⁄32
77
3 1⁄32
77
3 13⁄16
97
3 7⁄8
99
4
102
4 5⁄16
110
4 7⁄8
124
6 5⁄32
156
7
178
B Outside
diameter
(in.)
(mm)
1 3⁄4
44
2 9⁄16
65
2 9⁄16
65
2 31⁄32
75
3 1⁄2
89
3 11⁄16
94
4 5⁄32
106
5 7⁄32
133
5 9⁄16
141
6 5⁄8
168
C End-to-end
threaded
(in.)
(mm)
3 17⁄32
90
4 7⁄8
124
4 7⁄8
124
5 1⁄4
133
6 1⁄8
156
5 15⁄16
151
6 1⁄4
159
8 1⁄4
210
—
—
—
—
D End-to-end
butt-weld*
(in.)
(mm)
3 17⁄32
90
—
—
4 11⁄16
119
5 1⁄16
128
6 1⁄8
156
—
—
5 7⁄16
138
5 11⁄16
144
6
152
6 1⁄4
159
D End-to-end
butt-weld**
(in.)
(mm)
3 17⁄32
90
4 7⁄8
124
4 7⁄8
124
5 3⁄16
132
6 1⁄4
159
—
—
5 7⁄16
138
5 11⁄16
144
6 1⁄8
156
6 1⁄2
165
E Inside
diameter
(in.)
(mm)
1 1⁄8
28
1 13⁄32
36
1 11⁄16
43
2 1⁄16
52
2 9⁄16
65
2 13⁄16
71
3 3⁄16
81
4 3⁄16
106
—
—
—
—
6
Standard
4
Standard
4
Standard
3
Modified
4
Standard
4
Standard
4
Standard
4
Standard
3
Standard
3
Standard
ACME threads
per inch
Weight
(lb)
(kg)
3 1⁄2
1.6
9 1⁄2
4.3
8 3⁄4
4.0
12 3⁄4
5.8
17 1⁄2
7.9
17 1⁄2
7.9
22
10
32
15
55 3⁄4
25
80 1⁄4
36
Material
(Sub)
(Nut)
AS
SF
AS
SF
AS
SF
AS
SF
AS
SF
AS
SF
AS
SF
AS
SF
AS
SC
AS
SC
AS — Alloy steel
CS — Carbon steel
SF — Steel forging
* Schedule 160
** XX heavy
A
C
D
E*
* Line pipe thread configuration.
Butt-weld inside diameter dependent on pipe schedule.
10
B
Weco Wing Union Specifications
Figure 1003
Figure 2002
Nominal pipe
size
(in.)
(mm)
2
50
3
80
4
100
5
125
Nominal pipe
size
(in.)
(mm)
2
50
3
80
A Clearance
radius
(in.)
(mm)
3 3⁄4
95
4 7⁄8
124
5 3⁄4
146
5 3⁄4
146
A Clearance
radius
(in.)
(mm)
3 3⁄4
95
6 1⁄4
159
B Outside
diameter
(in.)
(mm)
3
76
4 3⁄8
111
5 1⁄2
140
5 9⁄16
141
B Outside
diameter
(in.)
(mm)
2 9⁄16
65
5 1⁄2
140
C End-to-end
threaded
(in.)
(mm)
4 3⁄4
121
9 1⁄8
232
10 15⁄16
278
—
—
D End-to-end
butt-weld
(in.)
(mm)
7 13⁄32
188
10 1⁄2
267
8 7⁄8
225
10 11⁄16
271
10 3⁄4
273
4
(in.)
(mm)
4 5⁄8
117
4
D End-to-end
butt-weld*
D End-to-end
butt-weld**
(in.)
(mm)
4 3⁄4
121
9 1⁄8
232
10 15⁄16
278
10 15⁄16
278
22
10
96
44
AS
AS
E Inside
diameter
(in.)
(mm)
2
50
3 3⁄16
81
4
100
—
—
4
Standard
4
Standard
4
Standard
4
Standard
(lb)
(kg)
12
5.4
45
20
72
33
74
33
(Sub)
(Nut)
AS
SF
AS
SC
AS
SC
AS
SC
ACME threads
per inch
Weight
Material
ACME threads
per inch
Weight
Material
AS — Alloy steel
Figure 2202
* Schedule 160
** XX heavy
AS — Alloy steel
CS — Carbon steel
SF — Steel forging
(lb)
(kg)
Nominal pipe
size
(in.)
(mm)
2
50
2 1⁄2
65
3
80
A Clearance
radius
(in.)
(mm)
3 3⁄4
95
4 1⁄2
115
6 1⁄4
159
B Outside
diameter
(in.)
(mm)
2 9⁄16
65
4 1⁄8
105
5 1⁄2
140
D End-to-end
butt-weld
(in.)
(mm)
7 13⁄32
188
9 9⁄16
243
10 1⁄2
267
5
5
5
26
12
42
19
55
25
AS
AS
AS
ACME threads
per inch
Weight
(lb)
(kg)
Material
AS — Alloy steel
Figure 1502
Nominal pipe
size
(in.)
(mm)
1
25
1 1 ⁄2
40
2
50
2 1⁄2
65
3
80
4
100
A Clearance
radius
(in.)
(mm)
2 7⁄8
73
3 21⁄32
93
3 29⁄32
99
4 5⁄32
106
4 1 ⁄2
114
6
300
B Outside
diameter
(in.)
(mm)
2 3⁄16
55
3
76
3 3⁄16
81
3 3⁄4
95
4 13⁄32
112
5 3 ⁄4
146
C End-to-end
threaded
(in.)
(mm)
11
4 ⁄32
110
13
5 ⁄32
137
7
178
7 ⁄4
184
5
7 ⁄8
194
8 ⁄2*
216
D End-to-end
butt-weld**
(in.)
(mm)
4 11⁄32
110
5 13⁄32
137
6 1⁄4
159
—
—
5 1 ⁄8
130
8 1 ⁄2
216
E Inside
diameter
(in.)
(mm)
1 1⁄8
28
1 11⁄16
43
2 1⁄16
52
2 9⁄16
65
3 3⁄16
81
—
—
3 1⁄2
Standard
3 1 ⁄2
Standard
3
Standard
3
Standard
3 1 ⁄2
Standard
3
Standard
ACME threads
per inch
1
Weight
(lb)
(kg)
8
3.6
12
5.4
19 1⁄4
8.7
22
10
28 1⁄2
13
75
34
Material
(Sub)
(Nut)
AS
SF
AS
SF
AS
SF
AS
SF
AS
SF
AS
SF
AS — Alloy steel
CS — Carbon steel
* Nonpressure-thread seal
** XX heavy
A
1
C
D
E*
B
* Line pipe thread configuration.
Butt-weld inside diameter dependent on pipe schedule.
11
Weco Wing Union Specifications
Tank unions
A
Nominal pipe
size
(in.)
(mm)
6
150
8
200
10
250
12
300
A Clearance
radius
(in.)
(mm)
6 1⁄4
159
7 1 ⁄2
191
8 1⁄2
213
9 3⁄4
244
B Outside
diameter
(in.)
(mm)
7 7⁄8
199
9 7 ⁄8
247
11 7⁄8
297
14
356
C End-to-face
(in.)
(mm)
4 3⁄8
111
4 3 ⁄8
111
4 1⁄2
114
4 1⁄2
114
D Socket
weld depth
(in.)
(mm)
3
⁄8
19
3
⁄8
19
3
⁄8
19
3
⁄8
19
E
E Seal inside
diameter
(in.)
(mm)
6 ⁄8
168
8 ⁄8
219
10 ⁄4
273
12 ⁄4
324
B
Weight
(lb)
(kg)
22
10
31
14
37
17
50
23
SC
SC
SC
SC
5
Material
5
3
C
D
3
E
SC — Steel casting
F
G
Air-o-unions
A
Nominal pipe
size
(in.)
(mm)
4
100
6
150
8
200
10
250
12
300
13
325
16
400
A Tube inside
diameter
(in.)
(mm)
4 19⁄32
117
6 3⁄ 4
171
8 3⁄4
222
10 15⁄16
278
12 15⁄16
329
13 5⁄8
346
16 1⁄4
413
B Body inside
diameter
(in.)
(mm)
4 19⁄32
117
6 15⁄16
176
8 15⁄16
227
11 1⁄8
283
13 1⁄8
333
13 3⁄4
349
16 3⁄8
416
C Butt-weld
Inside dia.
(in.)
(mm)
5 1⁄16
129
8
203
10 1⁄8
257
12 1⁄8
308
13 3⁄8
340
15 3⁄8
391
17 3⁄8
441
D Butt-weld
outside dia.
(in.)
(mm)
5 9⁄16
141
8 5⁄ 8
219
10 3⁄4
273
12 3⁄4
324
14
356
16
406
18
457
E
(in.)
(mm)
6 5⁄ 8
168
10 1⁄4
260
12 1⁄4
311
14 1⁄2
368
16 1⁄2
419
17 3⁄16
437
19 13⁄16
503
F End-to-face
(in.)
(mm)
3 1⁄ 8
79
4
102
4
102
4 1⁄4
108
4 1⁄4
108
4 3⁄8
111
4 1⁄4
108
G
(in.)
(mm)
1 1⁄ 2
38
2
51
2
51
2
51
2
51
2
51
2
51
6
14
14
14
14
14
14
7 1⁄ 4
3
17 1⁄2
8
21 3⁄4
10
26
12
30
14
34 1⁄4
16
38 1⁄2
17
Misalignment,
degrees
Weight
(lb)
(kg)
SC — Steel casting
Suction-hose unions
Size/Type
in.
Length
mm
6-inch hose
14 1⁄4
5-inch hose
5-inch socket weld
Nut radius
in.
mm
Materials
Nut
Sub
in.
Weight
mm
DI
34
15.4
356
5 1⁄8
130
DI
14 ⁄4
356
5 ⁄8
130
DI
DI
30
14
4 1⁄8
103
5 1⁄8
130
DI
Steel
18
8.2
5-inch line pipe thread
7 3⁄4
194
5 1⁄8
130
DI
DI
21
10
4-inch line pipe thread
6
150
5 1⁄8
130
DI
DI
25
11.3
14 1⁄2
368
5 1⁄8
130
DI
DI
25
11.3
13 ⁄16
342
5 1⁄8
130
DI
DI
10
4.5
4-inch hose
Blanking cap
1
11
1
DI — Ductile iron casting
12
B
C
D
Warnings and Safety Instructions
FMC can not anticipate all of the situations a user may encounter while installing and using FMC products. Therefore, the
user of FMC products MUST know and follow all applicable industry specifications on the safe installation and use of these
products. Refer to FMC product catalogs, product brochures and installation, operating and maintenance manuals for additional
product safety information or contact FMC at 800/772-8582.
WARNINGS
FAILURE TO FOLLOW THESE WARNINGS COULD RESULT IN SERIOUS INJURY OR DEATH!
1.
Do not mix or assemble components, parts or end connections with different pressure ratings.
Mismatched parts may fail under pressure.
2.
Do not use or substitute non FMC components or parts in FMC products and assemblies.
3.
Do not strike, tighten or loosen pressurized components or connections.
4.
Do not exceed the rated working pressure of the product.
5.
Complete and proper make-up of components and connections is required to attain rated working pressure.
6.
Do not use severely worn, eroded or corroded products. Contact FMC for more information on how to
identify the limits of erosion and corrosion.
7.
Follow safe practices when using products in overhead applications. Products not properly secured
could fall.
8.
Select only appropriate product and materials for the intended service:
• Do not expose standard service products to sour gas fluids. (Refer to NACE MR-0175.)
Do not interchange sour gas components with standard service components.
• Use appropriate safety precautions when working with ferrous products in below freezing temperatures.
Freezing temperatures lower the impact strength of ferrous materials.
9.
Follow manufacturers instructions and Material Safety Data Sheet directions when using solvents.
10. Make certain that personnel and facilities are protected from residual hazardous fluids before disassembly
of any product.
11. If any leakage is detected from FMC products, take them from service immediately to prevent potential
damage and personal injury.
SAFETY INSTRUCTIONS
The applications of FMC products are in working environments where general personnel safety procedures and
policies MUST be followed. Always use appropriate protective equipment in high pressure, extreme temperature or
severe service applications.
FMC Corporation
Fluid Control Division
Division Headquarters
6677 North Gessner Road
Houston, Texas 77040
Phone: 713/510-6800
Fax: 713/510-6803
http://www.fmc.com/Eteg
E-mail: [email protected]
(Direct orders to sales offices
at the following locations:)
FMC Fluid Control Division
2825 West Washington
P.O. Box 1377
Stephenville, Texas 76401
Phone: 254-968-2181
Fax: 254/968-5709
TollFree: 1-800-772-8582
FMC Corporation (U.K.) Ltd.
Fluid Control Division
Wellington Road Industrial Park
Wellington Circle
Aberdeen AB12 3JG
Scotland
Phone: (44) 1224/898-555
Fax: (44) 1224/249-460
FMC Southeast Asia Pte. Ltd.
Fluid Control Division
149 Gul Circle
Singapore 629605
Phone: (65) 862-3659
Fax: (65) 861-8251
FMC International S.A.
Fluid Control Division
Al Moosa Tower, 17th Floor
Box 3228
Dubai, United Arab Emirates
Phone: (971) 4/310-948
Fax: (971) 4/310-950
©Copyright 1996, FMC Corporation
Printed in U.S.A., HP 5.0M 11-96