Nominal     size        DN	Chord lengths		h	Average weight per piece
	internal (b)1	external  (b)2
mm	mm	mm	mm	kg
100	100	131	65	6
150	151	186	93	10
200	202	242	121	14
250	252	296	148	20
300	302	350	176	28
350	352	417	208	35
400	402	484	242	45
450	452	548	274	54
500	503	581	290	65
600	603	687	343	85
700	704	790	396	110
NOTE:  Produced in standard length of 1.00M         Other lengths/diameters available on request        Also available with socket