1. FLANGE
WN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);Th(Threaded);SW(socket welding);LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange;Reducing flange;API flange;Integral/Compact flange;Spectacle blind,Lind spade and spacer,Paddle blind,Paddle spacer;Orifice plate;Pipe plate,Bleed ring. Hub flange, anchor flange.
2. Size 1/2''~*8''
3. Face RF(raised face);FF(flat face);RTJ(ring type joint);
4. Class Rating
Class**0~***0
5. Standard ANSI B*6.5,ANSI B*6.*7, ASME B*6.*7 series A,
ASME B*6.*7 series B, MSS SP**4, API **5, DIN***7,
ASME B*6.5, API 6A, API 6B, API 6BX ,BS***4,BS***6,
JIS 5K *0K *6K *0K, ANSI B*6.*6
6. Carbon Steel
ASTM A**4 F*2 F*6 F*8 F*0 F*2 F*6 F*0 F*5 F*0;
ASTM A**5 A**5N A*6 , ASTM A**0 GR. LF1 LF2 LF3 LF5 LF6 LF9 LF**7,
ASTM A**2 F5 F9 F*1(class 1,2,3) F*2(class 1, 2) F*2(class 1, 3) F*1, F*3, F*4, F*1
7. ASTM A**4 Carbon and Alloy Steel Forgings for Pipe Flanges, forged Fittings, Valves, and Parts For High-Pressure Transmission Service
ASTM A**0 carbon and low-alloy steel flanges, forged forgings, requiring notch toughness testing for piping components.
ASTM A**2 forged or rolled alloy steel pipe flanges, forged fittings, valves and parts for high-temperature service.
