AS4087 PN21 Flange Dimensions & Standards

PN21			FLANGE THICKNESS	DRILLING DATA				PN21
NOMINAL PIPE SIZE		FLANGE OUTSIDE DIAMETER	THICKNESS OF FLANGE	PITCH CIRCLE DIAMETER	BOLT HOLE DIAMETER	NUMBER OF BOLT HOLES	NOMINAL PIPE SIZE
MM	INCH	OD	T	PCD	H	#	MM	INCH
50	2	165	15	127	18	4	50	2
65	2 1/2	185	15	146	18	8	65	2 1/2
80	3	205	15	165	18	8	80	3
100	4	230	19	191	18	8	100	4
150	6	305	24	260	22	12	150	6
200	8	370	24	324	22	12	200	8
225	9	405	30	356	26	12	225	9
250	10	430	30	381	26	12	250	10
300	12	490	30	438	26	16	300	12
350	14	550	30	495	30	16	350	14
375	15	580	38	521	30	16	375	15
400	16	610	38	552	30	20	400	16
450	18	675	38	610	33	20	450	18
500	20	735	48	673	33	24	500	20
600	24	850	58	781	36	24	600	24
700	28	935	58	857	36	24	700	28
750	30	1015	58	940	36	28	750	30
800	32	1060	68	984	36	28	800	32
900	36	1185	68	1105	39	32	900	36
1000	40	1275	78	1194	39	36	1000	40
1200	48	1530	88	1441	42	40	1200	48

NOTES:

(1) Stocked flanges are generally supplied as flat face

(2) Raised face or "O" ring groove also available.

(3) Flanges may also be supplied in weld neck and bossed configuration. (hub dimensions as per AS2129)

BALCOMBE ENGINEERING P/L ...03 9554 0900..... www.baleng.com.au

AS4087 PN21