NPTF/PTF THREAD GAUGES

NPTF THREADS can provide pressure tight seal on threads without use of a sealing compound

Specification

ANSI/ ASME B1.20.6 – 1984 which is Metric translation of ANSI B1.20.5-1978 & American Handbook H-28 Part II – 1957.

Manufacturing range:

• Taper Thread Plugs L1 & L3 from 1/16″ to 8″ in both Basic & Step Limit Design,Plain Taper Plugs to check crest of Threads,Taper Thread Rings L1 & L2 in both Basic & Step Limit Design, Plain Taper Rings to check crest of external threads (6 step design), Master Check Plugs to check Thread Rings L1 & L2.