NPT gauges are manufactured according to the B1.20.1 standards.
With basic step taper threads ring gauge
With basic step taper threads plug gauge
External Threads : As shown in the figure, when screwed into the component threads by hand, the Basic Step gauge should be flush with the end of the component face within single turn.
With min/max step taper threads ring gauge
With min/max step taper threads plain gauge
Internal Threads : As shown in the figure, when using a Min/Max Step type gauge, the component face end
should be flush between the Minimum and Maximum step limits.
For over a period of 11 years, engaged in Trading and Manufacturing of quality Thread Gauges in India.
Get In Touch
M/s. Engineering Supplies
46, Forjett Street, 1st Floor, Pulkit Bldg, Opp. SBI, Gowalia Tank,
Grant Road (W), Mumbai – 400036, Maharashtra, India.
© M/s Engineering Supplies