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Warnings: 1. Do not mix Standard Service and Sour Gas Service Unions or parts.
2. Do not make up or break out Unions in pressurized lines.
3. Always use good safety practices, including use of safety glasses, when making up or breaking out Unions.
▲ Weld ends – Consult Factory. † Steel Forging Subs available – Consult Factory. TPI = Threads per inch. DI = Ductile Iron. SF = Steel Forging. BS = Bar Stock. ST = Steel Tubing.
Wing Unions
15,000 psi cwp – 22,500 psi test
figure 1502
Threaded Ends
Blue Nut/Red Subs
Size Item Unit Weight A B C D TPI Material
NPS Dn lbs kg in mm in mm in mm Nuts Subs
2 50
Union Complete 19.46 8.83
7.060 179.32 3.230 82.04 7.860 199.64 ▲ 3
STD
All Alloy
Steel
Forging
Nut 9.78 4.44
Male Sub 4.82 2.19
Female Sub w/Ring 4.86 2.20
Seat Ring – –
3 80
Union Complete 30.48 13.82
7.630 193.8 4.400 111.76 9.900 251.46 ▲ 31⁄2
STD
Nut 14.18 6.43
Male Sub 8.00 3.63
Female Sub w/Ring 8.30 3.76
Seat Ring – –
Alloy steel forgings in high-pressure manifold and treating iron connections. Field-replaceable seal ring protects the metal-to-metal seal.
Available in threaded and butt weld ends.
figure 1502
Buttweld Ends
Schedule XXH
Blue Nut/Red Subs
Size Item Unit Weight A B C D TPI Material
NPS Dn lbs kg in mm in mm in mm Nuts Subs
2 50
Union Complete 20.58 9.33
7.060 179.32 3.230 82.04 7.860 199.64 ▲ 3
STD
All Alloy
Steel
Forging
Nut 9.78 4.44
Male Sub 5.32 2.41
Female Sub w/Ring 5.48 2.49
Seat Ring – –
3 80
Union Complete 27.98 12.69
7.630 193.8 4.400 111.76 9.900 251.46 ▲ 31⁄2
STD
Nut 14.18 6.43
Male Sub 6.96 3.16
Female Sub w/Ring 7.76 3.52
Seat Ring – –
Alloy steel forgings in high-pressure manifold and treating iron connections. Field-replaceable seal ring protects the metal-to-metal seal.
Available in threaded and butt weld ends.
figure 1502
Buttweld Ends
Schedule 160
Blue Nut/Red Subs
Size Item Unit Weight A B C D TPI Material
NPS Dn lbs kg in mm in mm in mm Nuts Subs
2 50
Union Complete 20.06 9.10
7.060 179.32 3.230 82.04 7.860 199.64 ▲ 3
STD
All Alloy
Steel
Forging
Nut 9.78 4.44
Male Sub 5.06 2.30
Female Sub w/Ring 5.22 2.37
Seat Ring – –
3 80
Union Complete 27.81 12.61
7.630 193.8 4.400 111.76 9.900 251.46 ▲ 31⁄2
STD
Nut 14.18 6.43
Male Sub 6.51 2.95
Female Sub w/Ring 7.12 3.23
Seat Ring – –
Alloy steel forgings in high-pressure manifold and treating iron connections. Field-replaceable seal ring protects the metal-to-metal seal.
Available in threaded and butt weld ends.