Plate Flange

A plate flange is a type of flange that is used to connect two sections of piping or other equipment. It typically consists of a flat, circular metal plate with holes around the edge for bolts. The plate is usually made from materials like steel, stainless steel, or other metals that can withstand pressure and environmental conditions.

Here are some key aspects of plate flanges:

Design: Plate flanges can come in various sizes and thicknesses depending on the application and the pressure requirements. The design includes the flange’s diameter, bolt hole pattern, and the thickness of the plate.
Types: There are different types of plate flanges, such as slip-on, weld-neck, blind, and threaded. Each type is used for specific purposes depending on how it will be connected to pipes or other equipment.
Applications: Plate flanges are used in many industries including oil and gas, chemical processing, water treatment, and more. They provide a reliable way to connect and disconnect sections of piping and other components.
Standards: Plate flanges are often manufactured according to industry standards such as those from the American Society of Mechanical Engineers (ASME) or the International Organization for Standardization (ISO). These standards ensure compatibility and safety across different systems and applications.
Installation: Proper installation is crucial for ensuring a leak-proof and strong connection. This involves aligning the bolt holes, using the correct size bolts, and sometimes applying gaskets to ensure a tight seal.

Plate Flange Class 150 Dimensions

NPS	D	b	g	m	J	k	Holes	l	Kg.
1/2″	88.9	11.1	34.9	30.2	22.3	60.3	4	15.9	0.4
3/4″	98.4	12.7	42.9	38.1	27.7	69.8	4	15.9	0.7
1″	107.9	14.3	50.8	49.2	34.5	79.4	4	15.9	0.8
1 1/4″	117.5	15.9	63.5	58.8	43.2	88.9	4	15.9	1.1
1 1/2″	127	17.5	73	65.1	49.5	98.4	4	15.9	1.4
2″	152.4	19	92.1	77.8	62	120.6	4	19	2.2
2 1/2″	177.8	22.2	104.8	90.5	74.7	139.7	4	19	3.6
3″	190.5	23.8	127	107.9	90.7	152.4	4	19	4.1
3 1/2″	215.9	23.8	139.7	122.2	103.4	177.8	8	19	5.2
4″	228.6	23.8	157.2	134.9	116.1	190.5	8	19	5.6
5″	254	23.8	185.7	163.6	143.8	215.9	8	22.2	6.3
6″	279.4	25.4	215.9	192.1	170.7	241.3	8	22.2	7.5
8″	342.9	28.6	269.9	246.1	221.5	298.4	8	22.2	12.6
10″	406.4	30.2	323.8	304.8	276.3	361.9	12	25.4	18.5
12″	482.6	31.7	381	365.1	327.1	431.8	12	25.5	28
14″	533.4	34.9	412.7	400	359.1	476.2	12	28.6	36
16″	596.9	36.5	469.9	457.2	410.5	539.7	16	28.6	46
18″	635	39.7	533.4	504.8	461.8	577.8	16	31.7	50
20″	698.5	42.9	584.2	558.8	513.1	635	20	31.7	64
22″	749.3	46	641.2	609.6	564.4	692.1	20	34.9	72
24″	812.8	47.6	692.1	663.6	615.9	749.3	20	34.9	89

Plate Flange Class 300 Dimensions

NPS	D	b	g	m	J	k	Holes	l	Kg.
1/2″	95.6	14.3	34.9	38.1	22.3	66.7	4	15.9	0.7
3/4″	117.5	15.9	42.9	47.6	27.7	82.5	4	19	1.1
1″	123.8	17.5	50.8	54	34.5	88.9	4	19	1.4
1 1/4″	133.3	19	63.5	63.5	43.2	98.4	4	19	1.8
1 1/2″	155.6	20.6	73	69.8	49.5	114.3	4	22.2	2.6
2″	165.1	22.2	92.1	84.1	62	127	8	19	3.4
2 1/2″	190.5	25.4	104.8	100	74.7	149.2	8	22.2	4.4
3″	209.5	28.6	127	117.5	90.7	168.3	8	22.2	6.1
3 1/2″	228.6	30.2	139.7	133.3	103.4	184.1	8	22.2	7.5
4″	254	31.7	157.2	146	116.1	200	8	22.2	10.1
5″	279.4	34.9	185.7	177.8	143.8	234.9	8	22.2	12.5
6″	317.5	36.5	215.9	206.4	170.7	269.9	12	22.2	14.1
8″	381	41.3	269.9	260.3	221.5	330.2	12	25.4	24.8
10″	444.5	47.6	323.8	320.7	276.3	387.3	16	28.6	37.1
12″	520.7	50.8	381	374.6	327.1	450.8	16	31.7	50
14″	584.2	54	412.7	425.4	359.1	514.3	20	31.7	70
16″	647.7	57.1	469.9	482.6	410.5	571.5	20	34.9	90
18″	711.2	60.3	533.4	533.4	461.8	628.6	24	34.9	112
20″	774.7	63.5	584.2	584.2	513.1	685.8	24	34.9	133
22″	838.2	66.7	641.2	641.2	564.4	742.9	24	41.3	197
24″	914.4	69.8	692.1	701.7	615.9	812.8	24	41.3	208

Plate Flange Class 600 Dimensions

NPS	D	b	g	m	J	k	Holes	l	Kg.
1/2″	95.2	14.3	34.9	38.1	22.3	66.7	4	15.9	0.8
3/4″	117.5	15.9	42.9	47.6	27.7	82.5	4	19	1.4
1″	123.8	17.5	50.8	54	34.5	88.9	4	19	1.6
1 1/4″	133.3	20.6	63.5	63.5	43.2	98.4	4	19	2.1
1 1/2″	155.6	22.2	73	69.8	49.5	114.3	4	22.2	3.1
2″	165.1	25.4	92.1	84.1	62	127	8	19	3.7
2 1/2″	190.5	28.6	104.8	100	74.7	149.2	8	22.2	5.4
3″	209.5	31.7	127	117.5	90.7	168.3	8	22.2	7.3
3 1/2″	228.6	34.9	139.7	133.3	103.4	184.1	8	25.4	8.9
4″	273	38.1	157.2	152.4	116.1	215.9	8	25.4	11.8
5″	330.2	44.4	185.7	188.9	143.8	266.7	8	28.6	24.5
6″	355.6	47.6	215.9	222.2	170.7	292.1	12	28.6	29.5
8″	419.1	55.6	269.9	273	221.5	349.2	12	31.7	43
10″	508	63.5	323.8	342.8	276.3	431.8	16	34.9	70
12″	558.8	66.7	381	400	327.1	488.9	20	34.9	86
14″	603.2	69.8	412.7	431.8	359.1	527	20	38.1	100
16″	685.8	76.2	469.9	495.3	410.5	603.2	20	41.3	142
18″	742.9	82.5	533.4	546.1	461.8	654	20	44.4	175
20″	812.8	88.9	584.2	609.6	513.1	723.9	24	44.4	232
22″	869.9	95.2	641.2	666.7	564.4	777.9	24	47.6	292
24″	939.8	101.6	692.1	717.5	615.9	838.2	24	50.8	330

Plate Flange Dimensions (DIN2503 PN40)

Nominal Pipe Size	Diameter of Pipe		Flange I.D	No. of holes	Flange Dia	Thk of Flange	Dia of Bolt Circle	Dia of Bolt Holes	Approx.Weight
DN	ISO	DIN	D5	BN	D	b	K	d2	KG/PCS
10	–	14	14.5	4	90	16	60	14	0.7
10	17.2	–	17.7	4	90	16	60	14	0.69
15	–	20	21	4	95	16	65	14	0.77
15	21.3	–	22	4	95	16	65	14	0.77
20	–	25	26	4	105	18	75	14	1.06
20	26.9	–	27.6	4	105	18	75	14	1.05
25	–	30	31	4	115	18	85	14	1.27
25	33.7	–	34.4	4	115	18	85	14	1.25
32	–	38	39	4	140	18	100	18	1.86
32	42.4	–	43.1	4	140	18	100	18	1.83
40	–	44.5	45.5	4	150	18	110	18	2.12
40	48.3	–	49	4	150	18	110	18	2.09
50	–	57	58.1	4	165	20	125	18	2.78
50	60.3	–	61.1	4	165	20	125	18	2.74
65	76.1	–	77.1	8	185	22	145	18	3.48
80	88.9	–	90.3	8	200	24	160	18	4.33
100	–	108	109.6	8	235	24	190	22	5.82
100	114.3	–	115.9	8	235	24	190	22	5.61
125	–	133	134.8	8	270	26	220	26	7.91
125	139.7	–	141.6	8	270	26	220	26	7.6
150	–	159	161.1	8	300	28	250	26	10.12
150	168.3	–	170.5	8	300	28	250	26	9.58
175	193.7	–	196.1	12	350	32	295	30	14.45
200	219.1	–	221.8	12	375	34	320	30	16.9
250	–	267	270.2	12	450	38	385	33	27.28
250	273	–	276.2	12	450	38	385	33	26.51
300	323.9	–	327.6	16	515	42	450	33	36.38
350	355.6	–	359.7	16	580	46	510	36	52.83
350	–	368	372.2	16	580	46	510	36	50.24
400	406.4	–	411	16	660	50	585	39	74.71
400	–	419	423.7	16	660	50	585	39	71.44
500	508	–	513.6	20	755	52	670	42	86.87
600	610	–	616.5	20	890	54	795	48	121.84
700	711	–	716	24	995	58	900	48	150.93
800	813	–	818	24	1140	64	1030	56	219.08
900	914	–	920	28	1250	70	1140	56	271.16
1000	1016	–	1022	28	1360	78	1250	56	344.95