BSPTr Thread Gauges
BSPTr Threads can provide pressure tight seal on threads without use of a sealing compound. They are used in pipe assemblies where pressure tight joint is required on threads, without use of sealing compound.
Two Types of Gauges are recommended System A & System B.
BS 21 – 1985 Indian Standard: Basic Dimensions: IS 554 : 1999 & Gauging Practice: IS 8999 : 2003.
Manufacturing Range :
Taper Thread Plugs & Rings for Pipe sizes 1/16″ to 6″ in both System A & System B Design.
|Diameter (Inch)||TPI||Type of Gauges|
|1/16, & 1/8||28||Thread Plug Gauges||Thread Ring Gauges||Check Plug to check||Wear Check|
|1/4 & 3/8||19||System A.||System A||NEW Rings System A||Plug Gauges to check/ calibrate used Rings. System A|
|1/2 & 3/4||14||& System B.||& System B||& System B||& System B|
|1,1.1/4,1.1/2,2, 2.1/2, 3||11|
|4, 5, 6|