* ASME/ANSI B16.47: WELDING NECK FLANGE, BLIND FLANGE. (SERIES A & B)
Pressure Class: 75, 150, 300, 400, 600, 900
* ASME/ANSI B16.36: (ORIFICE FLANGES) WELDING NECK FLANGE, SLIPON FLANGE, THREADED FLANGE.
Pressure Class: 300, 400, 600, 900, 1500, 2500
* ASTM/ANSI B16.48: ( Figure-8 blanks)
Pressure Class: 150, 300, 400, 600, 900, 1500, 2500
* MSS SP44: WELDING NECK FLANGE, BLIND FLANGE.

Pressure Class: 300, 400, 600, 900
* API 6A: WELDING NECK FLANGE, THREAD FLANGE, BLIND FLANGE.
Pressure: 2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, 20000Psi, 25000Psi
Material: ASTM A105; ASTM A350, A694 F42/F46/F52/F60/F65
ASTM A182 F304/304L, F316/316L, F321, F310,
ASTM A 182 F51/F53/F55
* Size: 1/2"-48".