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pipe couplings
• The left hand threaded end of all right and left couplings is knurled for identifcation, and all are dipped in rust preventative.
• Extra strong right and left couplings are available on request.
Steel Pipe Couplings
Merchant Couplings
Note
• The left hand threaded end of all right and left couplings is knurled for identifcation. All sizes of right and left couplings are
taper tapped
3
⁄
4
" per foot
(62.5mm per meter)
on the diameter and all are dipped in rust preventative.
figure 346
Standard, Right & Left
Size
Outside Diameter
(Coupling)
Length
Unit Weight
NPS
DN
in
mm
in
mm
lbs
kg
1
⁄
2
15
1.063
27
1
9
⁄
16
40
0.17
0.08
3
⁄
4
20
1.313
33
1
5
⁄
8
41
0.28
0.13
1
25
1.576
40
2
51
0.43
0.20
1
1
⁄
4
32
1.900
48
2
1
⁄
16
52
0.54
0.24
1
1
⁄
2
40
2.200
56
2
1
⁄
16
52
0.73
0.33
2
50
2.750
70
2
1
⁄
8
54
1.11
0.50
figure 347
Extra Strong (XS), Right & Left
Size
Outside Diameter
(Coupling)
Length
Unit Weight
NPS
DN
in
mm
in
mm
lbs
kg
1
⁄
2
15
1.063
27
2
1
⁄
8
54
0.25
0.11
3
⁄
4
20
1.313
33
2
1
⁄
8
54
0.36
0.16
1
25
1.576
40
2
5
⁄
8
67
0.74
0.34
1
1
⁄
4
32
2.054
52
2
3
⁄
4
70
1.08
0.49
1
1
⁄
2
40
2.200
56
2
3
⁄
4
70
0.95
0.43
2
50
2.875
73
2
7
⁄
8
73
2.01
0.91