●法兰的类型:
1 对焊法兰(WN)
2 松套法兰 (LJ)
3 盲板法兰 (BL)
4 螺纹法兰 (THR)
5 平焊法兰 (SO)
6 承插焊法兰 (SW)

●标准:
ANSI/ASME Standard: ANSI B16.5, ANSI B16.47 Series A & B, MSS-SP-44, API 605, API6A in class 150 to 2500;
AWWA C207 flanges in Class B, Class D, Class E, Class F, Ring, Blind & Hub;
European DIN, UNI, EN 1092-1, BS 4504, ISO, NS, NFE29203 flanges in Pressure PN6 to PN100;
Japanese JIS B2220 & Korean KS B1503 flanges in pressure 5K to 40K;
Russian GOST 12820-80, GOST 12821-80, GOST 12815-80 in pressure PN0.6MPa to PN10MPa;
South African SABS 1123 / SANS 1123 in Class 600kPa to 4000kPa.

●材料:
碳钢
ASTM A105/A105N
A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
A694, F42, F46, F48, F50, F56, F60, F65, F70 Steel RDT37.2
不锈钢
ASTM A182 F304/304L, F316/316L, F316H, F316TI, F310, F321;
合金钢
ASTM A182 F1, F5, F9, F11, F22, F91
双相钢和特种精炼钢
ASTM A182 F51/UNS S31803, A182 F53/UNS S32750, ASTM A182 F55 / UNS S3260
法兰面类型: