NGT (National Gas Taper) Threads are used to check Gas cylinder valve stems and cylindrical neck threads.
(Taper 1 IN 16 on diameter)
• American Handbook H-28 Part II - 1957
* 3/4"-14 NGT size is manufacured as per IS 9121-2005 , on customer request.
Taper Thread Plugs - Gauge L1 & Gauge L9
Plain Taper Plug Gauges to check truncation of Minor diameter - Gauge C1 & Gauge C2
Taper Thread Ring Gauge L1 & Gauge L8
Master Check Plug to check Rings L1 & L8
Plain Taper Ring to check crest Truncation of Major Diameter.
Sizes covered are from 1/8 NGT to 1.1/2 NGT.