Axial Multi Spring Ring Disk CHECK VALVE TYPE ND

The ND provides the same proven ring disc/radial guide design as NB and friction free guiding with aerodynamic flowpath through its two ring shaped flow ports, but with a long API 6D face to face dimension.

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 ND: API 6D 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