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catawissa
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.
figure 602
Threaded Ends
Black Nut/Orange Subs
Size Item Unit Weight A B C TPI Material
NPS Dn lbs kg in mm in mm in mm Nuts Subs
1 25
Union Complete 3.55 1.61
6.625 168.28 1.750 44.45 4.500 114.30 6STD SF SF
Nut 1.95 0.88
Male Sub 0.60 0.27
Female Sub w/Ring 1.00 0.45
Seat Ring – –
11⁄2 40
Union Complete 9.54 4.33
4.600 116.84 2.570 65.28 5.520 140.21 4STD SF SF
Nut 4.98 2.26
Male Sub 1.98 0.90
Female Sub w/Ring 2.58 1.17
Seat Ring – –
2 50
Union Complete 12.40 5.62
5.300 134.62 2.970 75.44 6.875 174.63 3MOD SF SF
Nut 6.50 2.95
Male Sub 2.85 1.29
Female Sub w/Ring 3.05 1.38
Seat Ring – –
3 80
Union Complete 22.30 10.11
6.310 160.27 4.250 107.95 8.875 225.43 3MOD SF SF
Nut 9.95 4.51
Male Sub 5.20 2.36
Female Sub w/Ring 7.15 3.24
Seat Ring – –
4 100
Union Complete 32.18 14.59
8.300 210.82 5.200 132.08 10.040 255.02 3MOD SF SF
Nut 13.30 6.03
Male Sub 8.36 3.79
Female Sub w/Ring 10.52 4.77
Seat Ring – –
Compact design is well-suited for manifold service. Seal ring protects the metal-to-metal seal. Seal design reduces line turbulence.
Available in threaded and butt weld ends.
Wing Unions
6,000 psi cwp – 9,000 psi test