ASME B16.5 Class 300 Weld Neck Flange Dimension

ZHAO77JIE ASME B16.5 Dimension, Weld Neck Flange

Nominal Pipe Size		A	B	C	D	E	F	G	H	I	J
inch	mm	mm	mm	mm	mm	mm	mm	mm	Holes	mm	mm
1/2	21.30	95.20	15.70	14.20	52.30	21.30	38.10	35.00	4	15.70	66.55
3/4	26.70	117.3	20.80	15.70	57.15	26.70	47.70	42.90	4	19.00	82.50
1	33.40	123.9	26.70	17.50	62.00	33.50	53.80	50.80	4	19.00	88.90
1 1/4	42.20	133.3	35.10	19.00	65.00	42.20	63.50	63.50	4	19.00	98.50
1 1/2	48.30	155.4	40.90	20.60	68.30	48.30	69.85	73. 15	4	22.30	114.3
2	60.30	165. 1	52.60	22.30	69.85	60.45	84.00	91.90	8	19.00	127.0
2 1/2	73.00	190.5	62.70	25.40	76.20	73.15	100.0	104.6	8	22.30	149.3
3	88.90	209.5	78.00	28.40	79.25	88.90	117.3	127.0	8	22.30	168.1
3 1/2	101.6	228.6	90.20	30.20	81.00	101.6	133.3	139.7	8	22.30	184.1
4	114.3	254.0	102.4	31.70	85.80	114.3	146.0	157.2	8	22.30	200.1
5	141.3	279.4	128.3	35.00	98.50	141.2	177.8	185.7	8	22.30	234.9
6	168.3	317.5	154.2	36.50	98.50	168.4	206.2	215.9	12	22.30	269.7
8	219.1	381.0	202.7	41.10	111.2	219.2	260.3	269.7	12	25.40	330.2
10	273.0	444.5	254.5	47.70	117.3	273.0	320.5	323.8	16	28.40	387.3
12	323.8	520.7	304.8	50.80	130.0	323.8	374.6	381.0	16	31.70	450.8
14	355.6	584.2	To be specifi-ed by the Purch-aser	53.80	142.7	355.6	425.4	412.7	20	31.70	514.3
16	406.4	647.7		57.15	146.0	406.4	482.6	469.9	20	35.00	571.5
18	457.2	711.2		60.45	158.7	457.2	533.4	533.4	24	35.00	628.6
20	508.0	774.7		63.50	162.0	508.0	587.2	584.2	24	35.00	685.8
24	609.6	914.4		69.85	168.1	609.6	701.5	692.1	24	41.10	812.8