Pipe / G Thread Gauges

Pipe / G Thread Gauges



Specification
  • ISO Standard - Basic Dimensions: ISO 228 - 1 : 2000 & Gauging Practice: ISO 228 - 2 : 1987.
  • British Standard - BS 2779 : 1986.
  • Indian Standard - Basic Dimensions : IS 2643 : 2005 & Gauging Practice: IS 10216 : 1988.
  • Japanese Standard - JIS B 0202 : 1999.
Manufacturing Range :
  • Pipe Diameter 1/16 to 6" Above 6" Diameter sizes (PF) are manufactured as per JIS B JIS B 0202-1999.

Pipe Diameter.

TPI

Tolerance Class
1/16. 1/8

28

Thread Plugs. Only General Class Thread Rings
  • •  Class B
  • •  Class A
  • Tolerance for class 'A' rings are close / tighter than Class 'B'. In case of pitch diameter tolerance, Class 'A' tolerance is exactly half the Class 'B' tolerance.
1/4, 3/8

19

1/2, 5/8, 3/4, 7/8

14

1, (1.1/16), 1.1/8, 1.1/4, (1.3/8),(1.5/8) 1.3/4, (1.7/8) , 2, (2.1/8), 2.1/4, (2.5/16), (2.3/8), 2.1/2, 2.3/4, (2.7/8), 3, (3.1/4), 3.1/2, 4,4.1/2, 5, 5.1/2, 6

11



Pipe Diameters in parenthesis ( ) are not recommended in above refered IS / ISO specifications. On customer request we can manufacture gauges for these sizes. * JIS B 0202:1999 Specification covers sizes from 1/8” to 12". Sizes from 1/8" to 6", which are covered in ISO 228 Part 2, are based on ISO specification. The sizes above 6" Pipe Diameter are manufactured based on JIS. The designation used for Parallel Pipe threads in JIS is PF.