Technical Info of Full & Half Couplings

  1. Home
    2. →
  2. Technical Info
    3. →
  3. Forged Fittings
    4. →
  4. Full & Half Couplings

full and half coupling technical info

 

Dimensions NPS 1/2 to 4 - Class 3000

NPS End to End Outside
Diameter		 Minimum Length
of Thread
A D B J
1/2 48 28 10.9 13.6
3/4 51 35 12.7 13.9
1 60 44 14.7 17.3
1¼ 67 57 17 18
1½ 79 64 17.8 18.4
2 86 76 19 19.2
2½ 92 92 23.6 28.9
3 108 108 25.9 30.5
4 121 140 27.7 33
NPS A D B J
End to End Outside
Diameter		 Minimum Length
of Thread


Dimensions NPS 1/2 to 4 - Class 6000

NPS End to End Outside
Diameter		 Minimum Length
of Thread
A D B J
1/2 48 38 10.9 13.6
3/4 51 44 12.7 13.9
1 60 57 14.7 17.3
1¼ 67 64 17 18
1½ 79 76 17.8 18.4
2 86 92 19 19.2
2½ 92 108 23.6 28.9
3 108 127 25.9 30.5
4 121 159 27.7 33
NPS A D B J
End to End Outside
Diameter		 Minimum Length
of Thread

 

General notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • Dimension (B) is minimum length of perfect thread.
    The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.

Technical Info