JIS B2220 10K Weld Neck Flange,B2220 10K WN Flange Manufacturer

Hebei Haihao Group manufacture butt weld pipe fittings,forged steel pipe fittings,steel pipes and forged flanges in high quality,we supply the products according to international standards,such as ANSI/ASME,BS,DIN,EN,JIS,GOST and customer’s requirements.(fittings standard data)

JIS B2220 10K weld neck flange,B2220 10K WN flange

We manufacture JIS B2220 10K weld neck flange from 10A to 1500A,the products are widely used in industry field,like Oil & Gas development,Power plant,Chemical industrial,Shipbuilding & Offshore,Steel constructions,Water treatment etc.The raw materials for our products are supplied by Bao Steel Group and Shougang Steel Group which belong to Chinese government,the materials contain carbon steel,stainless steel,alloy steel and so on.The raw materials as follows:

Carbon Steel: ASTM A105,A181,ASTM A516 GR.60,GR.70,ASTM A694 F42,F46,F52,F56,F60,F65,F70,ST37,ST45.8,C22.8,S2235,S235JRG2,P235GH,P245GH,P250GH,P265GH,P355GH,S355J2,16Mn,20Mn,Q235,20#,CT20,SS400 etc.
Stainless Steel: ASTM A182 F304,F304L,F316,F316L,F321,F321H,F304H,F316H,F347H,1.4301,1.4306,1.4401,1.4404,1.4541,1.4571,SUS304,SUS316 etc.
Alloy Steel: ASTM A350 LF2,CL1/CL2,ASTM A182 F5,F9,F11,F12,F22,F91 etc.

The JIS B2220 10K weld neck flange dimensions as follows:

WN Flange Nomi- nal Size	Out- side diam- eter of flange	Diam- eter of bolt hole centre circle	Diam- eter of bolt hole	Num- ber of bolt	Nom -inal desig- nation of thr- ead of bolt	Inside diam- eter	Raised face Diam -eter	Rai- sed face Hei- ght	Thick- ness of flange	Diam- eter of hub Small diam- eter side	Diam- eter of hub Large diam- eter side	Taper of hub	Totle length of fla- nge	Radi- us of fillet	Sub- stitu- tional diame- nsion of WN Thick- ness of flange	Sub- stitu- tional diam- ension of WN Taper of hub
A	D	C	h			d(18)	g	f	t	a	b(19)	x	T	r(19)	t	x
10 15 20	90 95 100	65 70 75	15 15 15	4 4 4	M12 M12 M12	12.7 16.1 21.6	46 51 56	1 1 1	12 12 14	17.3 21.7 27.2	28 33 38	1.25 1.25 1.25	29 31 32	4 4 4	– – –	– – –
25 32 40	125 135 140	90 100 105	19 19 19	4 4 4	M16 M16 M16	27.6 35.7 41.6	67 76 81	1 2 2	14 16 16	34.0 42.7 48.6	47 56 62	1.25 1.25 1.25	36 38 38	4 4 4	– – –	– – –
50 65 80	155 175 185	120 140 150	19 19 19	4 4 8	M16 M16 M16	52.9 67.9 80.7	96 116 126	2 2 2	16 18 18	60.5 76.3 89.1	75 92 105	1.25 1.25 1.25	40 44 45	4 4 5	– – –	– – –
90 100 125	195 210 250	160 175 210	19 19 23	8 8 8	M16 M16 M20	93.2 105.3 130.8	136 151 182	2 2 2	18 18 20	101.6 114.3 139.8	117 130 156	1.25 1.25 1.25	45 45 47	5 5 5	– – –	– – –
150 175 200	280 305 330	240 265 290	23 23 23	8 12 12	M20 M20 M20	155.2 180.1 204.7	212 237 262	2 2 2	22 22 22	165.2 190.7 216.3	184 210 238	1.25 1.25 1.25	53 55 58	5 5 5	– – –	– – –
225 250 300	350 400 445	310 355 400	23 25 25	12 12 16	M20 M22 M22	229.4 254.2 304.7	282 324 368	2 2 3	22 24 24	241.8 267.4 318.5	261 292 345	1.25 1.25 1.25	58 65 68	5 6 6	– – –	– – –
350 400 450	490 560 620	445 510 565	25 27 27	16 16 20	M22 M24 M24	339.8 390.6 441.4	413 475 530	3 3 3	26 28 30	355.6 406.4 457.2	388 442 495	1.25 1.25 1.25	79 85 90	6 6 6	– – –	– – –
500 550 600	675 745 795	620 680 730	27 33 33	20 20 24	M24 M30 M30	492.2 543.0 593.8	585 640 690	3 3 3	30 32 32	508.0 558.8 609.6	546 597 648	1.5 1.75 1.75	99 111 112	6 6 6	40 42 42	1.25 1.5 1.5
650 700 750	845 905 970	780 840 900	33 33 33	24 24 24	M30 M30 M30	644.6 695.4 746.2	740 800 855	3 3 3	34 34 36	660.4 711.2 762.0	700 754 807	1.75 2 2	116 132 139	6 6 6	44 56 60	1.5 1.5 1.5
800 850 900	1020 1070 1120	950 1000 1050	33 33 33	28 28 28	M30 M30 M30	797.0 847.8 898.6	905 955 1005	3 3 3	36 36 38	812.8 863.6 914.4	858 908 959	2 2 2	139 139 140	6 6 6	60 60 62	1.5 1.5 1.5
1000 1100 1200	1235 1345 1465	1160 1270 1380	39 39 39	28 28 32	M36 M36 M36	1000.2 1098.6 1200.2	1110 1220 1325	3 3 3	40 42 44	1016.0 1117.6 1219.2	1065 1174 1281	2 2 2	151 170 182	6 10 10	66 72 76	1.5 1.5 1.5
1350 1500	1630 1795	1540 1700	45 45	36 40	M42 M42	1346.2 1498.6	1480 1635	3 3	48 50	1371.6 1524.0	1438 1598	2 2	200 218	10 12	82 88	1.5 1.5

Except the JIS B2220 10K weld neck flange,we also can manufacture the products in the pressure 5K,16K,20K,30K.We supply the JIS B2220 flange products with experienced team and advanced production equipments,our company will keep high quality performance and devote ourselves to the world industry development.

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