LP Bull Plugs 
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J.B. Smith Mfg. Bull Plugs are available in current API threads, beveled, plain end (Square cut/socket weld), ES groove or Gruvlok (Std. Grv.) groove connections.  

  1. Gruvlok grooves are distinguished by having Std. Grv. in the product description on all documentation.
  2. Nominal Pipe Size 2" and smaller bull plugs manufactured out of cold drawn bar which is heat treated in accordance with ASTM A234-04 WPB.
  3. Nominal Pipe Size 2 1/2" - 8" bull plugs manufactured with A106 Grade B seamless pipe using J.B. Smith's unique spinning process which insures uniform wall thickness.
  4. For a chart of Wall Thickness info:  LP Wall Thickness
  5. For a Picture & more info:  Line Pipe Bull Plugs

Size & Length

Pipe NPS API or O.D. inches length inches
1/8 .405 2
1/4 .540 2
3/8 .675 2 1/4
1/2 .840 2 1/2
3/4 1.050 2 3/4
1 1.315 3
1 1/4 1.660 3 1/4
1 1/2 1.900 3 1/2
2 2 3/8 4
2 1/2 2 7/8 5
3 3 1/2 6
3 1/2 4 6 1/2
4 4 1/2 7
5 5 9/16 8 1/2
6 6 5/8 10
8 8 5/8 11
 

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