不锈钢法兰规格表.pdf

表一常用法兰规格尺寸表(国标）【1】

GB9119，2—88GB9119，2—88

10kg=1.0MPa16kg=1.6MPa
公称通公称通
in螺栓孔螺栓直螺栓孔法兰外螺栓孔
径法兰外径法兰厚度径螺栓孔距螺栓直径法兰厚度
距径数径数

3/8DN10506014414DN10906014414

1/2DN15596514414DN15956514414

3/4DN201057514416DN201057514416

1DN251158514416DN251158514416

11/4DN3214010018418DN3214010018418

11/2DN4015011018418DN4015011018418

2DN5016512518420DN5016512518420

21/2DN6518514518420DN6518514518420

3DN8020016018820DN8020016018820

31/2DN10022018018822DN10022018018822

4DN12525021018822DN12525021018822

5DN15028524022824DN15028524022824

6DN20034029522824DN20034029522826

8DN250395350221226DN250405355261229

10DN300445400221228DN300460410261232

12DN350505460221630DN350520470261635

14DN400565515261632DN400580525301638

16DN450615565262035DN450640585302042

18DN500670620262038DN500715650332046

20DN600780725262042DN600840770362052
表二不锈钢法兰规格尺寸表

尺寸规格外径內径厚中心孔大孔数尺寸规格外径內径厚中心孔大孔数

5K8022.59601245K1809014145194

10K9522.5127015410K1859018150198

20K9522.5147015420K2009022160238

150P8922.311.260.3154150P19090.723.9152.4194

300P9522.314.366.7194300P21090.728.6168.3228

DIN169522.51465154DIN162009020160198

水道2119018168184

5K852810651245K20011616165198

2022年3月23日；

尺寸规格外径內径厚中心孔大孔数尺寸规格外径內径厚中心孔大孔数

10K10028147515410K21011618175198

20K10028167515420K22511624185238

150P9827.712.769.8154150P229116.123.9190.5198

300P11727.715.182.5194300P254116.131.8200228

DIN16105281675154DIN1622011620180198

水道238115.418195184

5K9534.510751245K23514216200198

10K12534.5149019410K25014220210238

20K12534.5169019420K27014226225258

150P10834.514.379.4154150P254143.823.9215.9228

300P12434.517.590194300P279143.835234.9228

DIN1611534.51685154DIN1625014222210198

水道263141.219220186

5K11543.512901545K26516718230198

10K13543.51610019410K28016722240238

20K13543.51810019420K305167282602512

150P11743.215.988.9154150P279170.725.4241.3228

300P13343.219.198.4194300P318170.736.6269.92212

DIN1614043.516100194DIN1628516722240238

水道290166.620247186

5K1205012951545K32021820280238

10K140501610519410K33021