Name: steel waterproof casing ( B type)
    scope:
    steel waterproof casing for pipes through walls at not withstand vibration and stretching deformation of the pipeline structure (built) building materials for earthquake fortification in areas such as the use of steel waterproof casing, wall or building should be entered on the nearest wall of the pipe flexible connection settings, B section of the waterproof casing for ductile iron pipe.

            

Steel water pipe (B) Size Chart, Weight Table

DN	D1		D2	D3	δ	b	k	Weight (kg)
	Cast iron pipe	Ball cast iron pipe
75	93	-	140	250	4	10	4	5.33
100	118	118	168	280	4.5	10	5	6.27
150	169	170	219	330	6	10	6	10.06
200	220	220	273	385	8	12	8	15.90
250	271.6	274	325	435	8	12	8	18.68
300	322.8	326	377	500	10	14	10	27.40
350	374	378	426	550	10	14	1O	30.98
400	425.6	429	480	600	10	14	10	34.35
450	476.8	-	530	650	10	14	10	37.85
500	528	532	590	730	10	16	10	44.54
600	630.8	635	690	830	1O	16	10	54.50
700	733	738	790	930	10	16	10	62.19
800	836	842	900	1040	10	16	10	70.65
900	939	945	1000	1140	10	16	10	78.34
1000	1041	1048	1100	1240	10	16	1O	104.7
1100	1144	-	1200	1340	12	20	12	114.1
1200	1246	1255	1310	1450	12	20	12	124.4

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