Stainless Steel Blind Flange

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Product : Stainless Steel Blind Flange

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1.Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc;

2.Standard: ANSI, JIS, DIN, EN;

3.Material: 304/304L, 316/316L, 316H, 310, F321 F44 (UNS S31254)

Alloy Steel flanges ASTM A182 F1, F5a, F9, F11, F12, F22, F91;

4.Wall Thickness: Sch10, Sch20 , Sch30, STD, Sch40, XS,Sch80, Sch100, Sch120, Sch140, XXS;

5.Pressure Rating: Class 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS, 2000LBS, 3000LBS, 6000LBS, 9000 LBS;

6.Size: 1/2″ – 24″;

7.Surface treatment: antirust oil, black / yellow / transparent / electric galvanized / hot galvanized.

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• Specifications

  

   

  forged steel flange dimensions class150

  	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Length thru hub	Min. thread length	Min. counter-	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
  								bore
  		O	C	R	X	Y	T	Q
  in.	1/2″	3.75	0.56	1.38	1.5	0.88	0.62	0.93	4	0.62	1/2	2.62	2
  mm.		95.3	14.2	35.1	38.1	22.4	15.7	23.6		15.7	12.7	66.5	1
  in.	3/4″	4.62	0.62	1.69	1.88	1	0.62	1.14	4	0.75	5/8	3.25	3
  mm.		117.3	15.7	42.9	47.8	25.4	15.7	29		19.1	15.9	82.6	1
  in.	1″	4.88	0.69	2	2.12	1.06	0.69	1.41	4	0.75	5/8	3.5	4
  mm.		124	17.5	50.8	53.8	26.9	17.5	35.8		19.1	15.9	88.9	2
  in.	1 1/4″	5.25	0.81	2.5	2.5	1.12	0.81	1.75	4	0.75	5/8	3.88	5
  mm.		133.4	20.6	63.5	63.5	28.4	20.6	44.5		19.1	15.9	98.6	2
  in.	1 1/2″	6.12	0.88	2.88	2.75	1.25	0.88	1.99	4	0.88	3/4	4.5	7
  mm.		155.4	22.4	73.2	69.9	31.8	22.4	50.5		22.4	19.1	114.3	3
  in.	2″	6.5	1	3.62	3.31	1.44	1.12	2.5	8	0.75	5/8	5	9
  mm.		165.1	25.4	91.9	84.1	36.6	28.4	63.5		19.1	15.9	127	4
  in.	2 1/2″	7.5	1.12	4.12	3.94	1.62	1.25	3	8	0.88	3/4	5.88	13
  mm.		190.5	28.4	104.6	100.1	41.1	31.8	76.2		22.4	19.1	149.4	6
  in.	3″	8.25	1.25	5	4.62	1.81	1.38	3.63	8	0.88	3/4	6.62	16
  mm.		209.6	31.8	127	117.3	46	35.1	92.2		22.4	19.1	168.1	7
  in.	3 1/2″	9	1.38	5.5	5.25	1.94	1.56	4.13	8	1	7/8	7.25	21
  mm.		228.6	35.1	139.7	133.4	49.3	39.6	104.9		25.4	22.2	184.2	10
  in.	4″	10.75	1.5	6.19	6	2.12	1.62	4.63	8	1	7/8	8.5	37
  mm.		273.1	38.1	157.2	152.4	53.8	41.1	117.6		25.4	22.2	215.9	17
  in.	5″	13	1.75	7.31	7.44	2.38	1.88	5.69	8	1.12	1	10.5	63
  mm.		330.2	44.5	185.7	189	60.5	47.8	144.5		28.4	25.4	266.7	29
  in.	6″	14	1.88	8.5	8.75	2.62	2	6.75	12	1.12	1	11.5	80
  mm.		355.6	47.8	215.9	222.3	66.5	50.8	171.5		28.4	25.4	292.1	36
  in.	8″	16.5	2.19	10.62	10.75	3	2.25	8.75	12	1.25	11/8	13.75	115
  mm.		419.1	55.6	269.7	273.1	76.2	57.2	222.3		31.8	28.6	349.3	52
  in.	10″	20	2.5	12.75	13.5	3.38	2.56	10.88	16	1.38	1 1/4	17	170
  mm.		508	63.5	323.9	342.9	85.9	65	276.4		35.1	31.8	431.8	77
  in.	12″	22	2.62	15	15.75	3.62	2.75	12.94	20	1.38	1 1/4	19.25	200
  mm.		558.8	66.5	381	400.1	91.9	69.9	328.7		35.1	31.8	489	91
  in.	14″	23.75	2.75	16.25	17	3.69	2.88	14.19	20	1.5	1 3/8	20.75	230
  mm.		603.3	69.9	412.8	431.8	93.7	2.9	360.4		38.1	34.9	527.1	104
  in.	16″	27	3	18.5	19.5	4.19	3.06	16.19	20	1.62	1 1/2	23.75	330
  mm.		685.8	76.2	469.9	495.3	106.4	77.7	411.2		41.1	38.1	603.3	150
  in.	18″	29.25	3.25	21	21.5	4.62	3.12	18.19	20	1.75	1.63	25.75	400
  mm.		743	82.6	533.4	546.1	117.3	79.2	462		44.5	41.3	654.1	181
  in.	20″	32	3.5	23	24	5	3.25	20.19	24	1.75	1 5/8	28.5	510
  mm.		812.8	88.9	584.2	609.6	127	82.6	512.8		44.5	41.3	723.9	231
  in.	24″	37	4	27.25	28.25	5.5	3.62	24.19	24	2	1 7/8	33	730
  mm.		939.8	101.6	692.2	717.6	139.7	91.9	614.4		50.8	47.6	838.2	331

  

  forged steel flange dimensions class300

   

  	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
  		O	C	R
  in.	1/2″	3.75	0.56	1.38	4	0.62	1/2	2.62	2
  mm.		95.3	14.2	35.1		15.7	12.7	66.5	1
  in.	3/4″	4.62	0.62	1.69	4	0.75	5/8	3.25	3
  mm.		117.3	15.7	42.9		19.1	15.9	82.6	1
  in.	1″	4.88	0.69	2	4	0.75	5/8	3.5	3
  mm.		124	17.5	50.8		19.1	15.9	88.9	1
  in.	1 1/4″	5.25	0.75	2.5	4	0.75	5/8	3.88	4
  mm.		133.4	19.1	63.5		19.1	15.9	98.6	2
  in.	1 1/2″	6.12	0.81	2.88	4	0.88	3/4	4.5	6
  mm.		155.4	20.6	73.2		22.4	19.1	114.3	3
  in.	2″	6.5	0.88	3.62	8	0.75	5/8	5	8
  mm.		165.1	22.4	91.9		19.1	15.9	127	4
  in.	2 1/2″	7.5	1	4.12	8	0.88	3/4	5.88	12
  mm.		190.5	25.4	104.6		22.4	19.1	149.4	5
  in.	3″	8.25	1.12	5	8	0.88	3/4	6.62	16
  mm.		209.6	28.4	127		22.4	19.1	168.1	7
  in.	3 1/2″	9	1.19	5.5	8	0.88	3/4	7.25	21
  mm.		228.6	30.2	139.7		22.4	19.1	184.2	10
  in.	4″	10	1.25	6.19	8	0.88	3/4	7.88	27
  mm.		254	31.8	157.2		22.4	19.1	200.2	12
  in.	5″	11	1.38	7.31	8	0.88	3/4	9.25	35
  mm.		279.4	35.1	185.7		22.4	19.1	235	16
  in.	6″	12.5	1.44	8.5	12	0.88	3/4	10.62	50
  mm.		317.5	36.6	215.9		22.4	19.1	269.7	23
  in.	8″	15	1.62	10.62	12	1	7/8	13	81
  mm.		381	41.1	269.7		25.4	22.2	330.2	37
  in.	10″	17.5	1.88	12.75	16	1.12	1	15.25	124
  mm.		444.5	47.8	323.9		28.4	25.4	387.4	56
  in.	12″	20.5	2	15	16	1.25	1 1/8	17.75	185
  mm.		520.7	50.8	381		31.8	28.6	450.9	84
  in.	14″	23	2.12	16.25	20	1.25	1 1/8	20.25	250
  mm.		584.2	53.8	412.8		31.8	28.6	514.4	113
  in.	16″	25.5	2.25	18.5	20	1.38	1 1/4	22.5	295
  mm.		647.7	57.2	469.9		35.1	31.8	571.5	134
  in.	18″	28	2.38	21	24	1.38	1 1/4	24.75	395
  mm.		711.2	60.5	533.4		35.1	31.8	628.7	179
  in.	20″	30.5	2.5	23	24	1.38	1 1/4	27	505
  mm.		774.7	63.5	584.2		35.1	31.8	685.8	229
  in.	24″	36	2.75	27.25	24	1.62	1 1/2	32	790
  mm.		914.4	69.9	692.2		41.1	38.1	812.8	358

  

  forged steel flange dimensions class600

  	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
  		O	C	R
  in.	1/2″	3.75	0.56	1.38	4	0.62	1/2	2.62	2
  mm.		95.3	14.2	35.1		15.7	12.7	66.5	1
  in.	3/4″	4.62	0.62	1.69	4	0.75	5/8	3.25	3
  mm.		117.3	15.7	42.9		19.1	15.9	82.6	1
  in.	1″	4.88	0.69	2	4	0.75	5/8	3.5	4
  mm.		124	17.5	50.8		19.1	15.9	88.9	2
  in.	1 1/4″	5.25	0.81	2.5	4	0.75	5/8	3.88	5
  mm.		133.4	20.6	63.5		19.1	15.9	98.6	2
  in.	1 1/2″	6.12	0.88	2.88	4	0.88	3/4	4.5	8
  mm.		155.4	22.4	73.2		22.4	19.1	114.3	4
  in.	2″	6.5	1	3.62	8	0.75	5/8	5	10
  mm.		165.1	25.4	91.9		19.1	15.9	127	5
  in.	2 1/2″	7.5	1.12	4.12	8	0.88	3/4	5.88	15
  mm.		190.5	28.4	104.6		22.4	19.1	149.4	7
  in.	3″	8.25	1.25	5	8	0.88	3/4	6.62	20
  mm.		209.6	31.8	127		22.4	19.1	168.1	9
  in.	3 1/2″	9	1.38	5.5	8	1	7/8	7.25	29
  mm.		228.6	35.1	139.7		25.4	22.2	184.2	13
  in.	4″	10.75	1.5	6.19	8	1	7/8	8.5	41
  mm.		273.1	38.1	157.2		25.4	22.2	215.9	19
  in.	5″	13	1.75	7.31	8	1.12	1	10.5	68
  mm.		330.2	44.5	185.7		28.4	25.4	266.7	31
  in.	6″	14	1.88	8.5	12	1.12	1	11.5	86
  mm.		355.6	47.8	215.9		28.4	25.4	292.1	39
  in.	8″	16.5	2.19	10.62	12	1.25	1 1/8	13.75	140
  mm.		419.1	55.6	269.7		31.8	28.6	349.3	64
  in.	10″	20	2.5	12.75	16	1.38	1 1/4	17	230
  mm.		508	63.5	323.9		35.1	31.8	431.8	104
  in.	12″	22	2.62	15	20	1.38	1 1/4	19.25	295
  mm.		558.8	66.5	381		35.1	31.8	489	134
  in.	14″	23.75	2.75	16.25	20	1.5	1 3/8	20.75	355
  mm.		603.3	69.9	412.8		38.1	34.9	527.1	161
  in.	16″	27	3	18.5	20	1.62	1 1/2	23.75	495
  mm.		685.8	76.2	469.9		41.1	38.1	603.3	225
  in.	18″	29.25	3.25	21	20	1.75	1 5/8	25.75	630
  mm.		743	82.6	533.4		44.5	41.3	654.1	286
  in.	20″	32	3.5	23	24	1.75	1 5/8	28.5	810
  mm.		812.8	88.9	584.2		44.5	41.3	723.9	367
  in.	24″	37	4	27.25	24	2	1 7/8	33	1250
  mm.		939.8	101.6	692.2		50.8	47.6	838.2	567

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