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G 1/2-14 ISO 228-2
    Publish time 2023-02-23 16:24    

BSPP(G) Thread Gauge. BSPP – British Standard Pipe Parallel thread gauges with 55° thread angle. GO& NOGO, RH (right hand) & LH (Left hand ) available.

G 1/2-14 ISO 228-2

sowant precision gages can offer you the best quality G thread plug gages which made in China with low price, all gages with CNAS certificat.

All plug gages only have 1 tolerance, sometime, class B have been cancled now .

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.
Manufacturing Range :

Pipe Diameter 1/16 to 6" Above 6" Diameter sizes  are manufactured as per ISO 228 - 2.

G thread ring gauges have 2 class, class A or class B.  


Pipe Diameter.

TPI

Tolerance Class
1/16. 1/8

28

Thread Plugs. Only General ClassThread Rings

  • • Class B

  • • Class A

  • Tolerance for class 'A' rings are close / tighter than Class 'B'. In case of pitch diameter tolerance, Class 'A' tolerance is exactly half the Class 'B' tolerance.

1/4, 3/8

19

1/2, 5/8, 3/4, 7/8

14

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

Pipe Diameters in parenthesis ( ) are not recommended in above refered IS / ISO specifications.
On customer request we can manufacture gauges for these sizes.


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