Class 150 ANSI B16.5 WN RF Welding Neck Flange
Stainless steel:ASTM A182 F304, F316L, F321, etc
Duplex steel:S31803, S32205, S32750, etc
150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB
ASME, ANSI, JIS, DIN, etc
Butt welded or threaded
Slip-on, Lap joint, Welding neck, Socket welding, Threaded, Blind.
The flanges are used for the connection of tubes that transport water, oil, gas, etc
We are the china manufacture for producing not only duplex and super duplex steel F51/2205/S31803,
F53/2507/S32750/S32760, but also stainless steel materials (SS304/L, SS316/L, SS321),
specially Austenite stainless 310S, 347H, 317L, 904L etc.STV Valve will be your reliable choice.