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137
catawissa
Malleable Iron
Cast Iron
Small Steel
Fittings
Pipe Nipples &
Pipe Couplings
Forged Steel
Fittings & Unions
Anvilets
Catawissa
J.B. Smith Products
Carton Information
Figure 211
Insulating Union
Threaded Ends
Gray Nut/Light Blue 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 2.34 1.06
2.830 71.88 1.560 39.62 4.660 118.36 6
STD SF SF
Nut
1.42 0.64
Male Sub
0.40 0.18
Female Sub 0.52 0.24
Seal Ring Kit
–
–
2 50
Union Complete 6.24 2.83
3.510 89.15 2.880 73.15 6.250 158.75 6
STD SF SF
Nut
2.96 1.34
Male Sub
1.42 0.64
Female Sub 1.86 0.84
Seal Ring Kit
–
–
Laminated rings provide full insulation from electrolytic corrosion. Total of 35 million OHMS resistance. O-Ring in male sub and seal ring in female sub provide
primary and secondary seals. All seal rings are feld-replaceable. Available in threaded and butt weld ends.
Wing Unions
2,000 psi cwp – 3,000 psi test
Figure 300
Flat-Face Union
Gray Nut/Yellow Subs
Size
Item
Unit Weight
A
B
C
Material
NPS Dn
lbs
kg
in
mm in
mm in
mm Nuts Subs
Straight Away Breakout
1 25
Union Complete 2.21 1.00
2.625 66.68 1.560 39.62 4.250 107.95 DI
SF
Nut
1.50 0.68
Male Sub
0.31 0.14
Female Sub w/O-Ring 0.50 0.23
Seal Ring
–
–
2 50
Union Complete 6.00 2.72
3.750 95.25 2.780 70.61 5.750 146.05 DI
SF
Nut
3.31 1.50
Male Sub
1.25 0.57
Female Sub w/O-Ring 1.44 0.65
Seal Ring
–
–
2
1
⁄
2
65
Union Complete 10.88 4.93
4.625 117.48 3.410 86.61 7.000 177.8 DI
SF
Nut
6.19 2.81
Male Sub
2.13 0.97
Female Sub w/O-Ring 2.56 1.16
Seal Ring
–
–
3 80
Union Complete 14.25 6.46
5.000 127.00 4.300 109.22 8.000 203.2 DI
SF
Nut
6.31 2.86
Male Sub
3.50 1.59
Female Sub w/O-Ring 4.44 2.01
Seal Ring
–
–
4 100
Union Complete 20.69 9.38
5.750 146.05 5.110 129.79 8.875 225.43 DI
SF
Nut
8.31 3.77
Male Sub
5.57 2.53
Female Sub w/O-Ring 6.63 3.01
Seal Ring
–
–
Flat Face Fig. 300 Unions permit lateral removal of valves and other fttings for easy replacement or inspection. Unions seal equally well in low or high pressure
liquid or vapor service.