Axial Multi Spring Ring Disk CHECK VALVE TYPE NB

The NB employs the worldwide proven ring disc/radial guide design. With its friction free guiding and the aerodynamic flow path through its two ring shaped flow ports, the NB is “best in class” for speed of response and flow capacity.

Suitable for all liquids

Non-slam Closure

Very Low pressure loss

Friction-free valve disc guiding

Metal sealing

Maintenance free

Valve design to ASME B16.34




12’’ – 88’’ (DN 300 – DN2200)

Pressure Classes

ASME 150 – ASME 2500

API 2000 – API 10000



TYPE NB: Goodwin Standard Long Face-to-Face Dimensions (for 12″ and above)

End Connections:



Hub end

Compact flange


Ductile and Cast Irons

Carbon steel

Stainless steel

Duplex and Super duplex Stainless Steel

Aluminums bronzes

High Nickel Alloys