STANDARD AS PER ISO 2938
 
 
 
 

S.No	Outsider diameter	Series 1		Series 2		Series 3		Series 4		Series 5
		ID	Wt	ID	Wt	ID	Wt	ID	Wt	ID	Wt
1	56	40	8.0			36	10.0			28	14.0
2	63	50	6.5	45	9.0	40	11.5	36	13.5	32	15.5
3	71	56	7.5	50	10.5	45	13.0	40	15.5	36	17.5
4	75	60	7.5	56	9.5	50	12.5	45	15.0	40	17.5

Permissible variation: OD +2%, but not less than 1.0 mm

Wt the min wall is not under 95%

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