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.
Specification:
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 System A. & System B. |
Thread Ring Gauges Gauges System A & System B |
Check Plug to check NEW Rings System A & System B |
Wear Check Plug Gauges to check/ calibrate used Rings. System A & System B |
1/4 & 3/8 | 19 | ||||
1/2 & 3/4 | 14 | ||||
1,1.1/4,1.1/2,2, 2.1/2, 3 | 11 | ||||
4, 5, 6 |