OKDB - Profile backing ring PP

Profile backing ring PP with cast iron core according to DIN standard. Drilled: PN 10/16 up to d180, PN10 from d200 to d630.

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Reference	K	d	DN	b	D	K	M	g
OKDB032	85	*32	25	18	122	85	M12	40
OKDB040	100	*40	32	18	142	100	M16	50
OKDB050	110	*50	40	19	155	110	M16	70
OKDB063	125	*63	50	20	170	125	M16	90
OKDB075	145	*75	65	21	191	145	M16	125
OKDB090	160	*90	80	21	206	160	M16	130
OKDB110	180	*110	100	22	226	180	M16	155
OKDB125	180	*125	100	23	226	180	M16	140
OKDB140	210	*140	125	25	256	210	M16	170
OKDB160	240	*160	150	28	291	240	M20	250
OKDB180	240	*180	150	27	291	240	M20	240
OKDB200	295	*200	200	29	346	295	M20	350
OKDB225	295	*225	200	29	346	295	M20	350
OKDB250	350	*250	250	31	404	350	M20	435
OKDB280	350	*280	250	31	404	350	M20	425
OKDB315	400	*315	300	40	456	400	M20	750
OKDB355	460	*355	350	55	521	460	M20	1135
OKDB400	515	*400	400	57,5	584	515	M24	1490
OKDB450	620	*450	400	56	690	620	M24	2070
OKDB500	620	*500	500	56	690	620	M24	1962
OKDB560	725	*560	600	64	804	725	M27	3210
OKDB630	725	*630	600	64	804	725	M27	2755

*resale products
**PMA: maximum allowable pressure
***n: number of bolts