Pipe/G Thread Gauges

Pipe / G Threads are used for general purpose pipe fittings where pressure tight joints are not required on Threads.

Specification:

ISO Standard – Basic Dimensions: ISO 228 – 1 : 2000 & Gauging Practice: ISO 228 – 2 : 1987.
British Standard – BS 2779 : 1986.
Indian Standard – Basic Dimensions : IS 2643 : 2005 & Gauging Practice: IS 10216 : 1988.
Japanese Standard – JIS B 0202 : 1999.

Manufacturing Range :

Pipe Diameter 1/16 to 6″ Above 6″ Diameter sizes (PF) are manufactured as per JIS B JIS B 0202-1999.

Pipe Diameter.	TPI	Tolerance Class

Pipe Diameter.	TPI	Tolerance Class
1/16. 1/8	28
1/4, 3/8	19	Thread Plugs. Only General Class	Thread Rings
1/2, 5/8, 3/4, 7/8	14		• Class B
1, (1.1/16), 1.1/8, 1.1/4, (1.3/8),(1.5/8) 1.3/4, (1.7/8) , 2, (2.1/8), 2.1/4, (2.5/16), (2.3/8), 2.1/2, 2.3/4, (2.7/8), 3, (3.1/4), 3.1/2, 4,4.1/2, 5, 5.1/2, 6	11		• Class A Tolerance for class 'A' rings are close / tighter than Class 'B'.

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