Series ZD

Series ZD

The axial design allows for a streamlined flow path around the disc and high pressure recovery, minimising pressure drop across the valve. The efficient design combined with the highly responsive non-slam operation make this valve ideal for high head, critical pump applications. Its optimum designed aerodynamic flow path through the valve results in very low pressure losses.

Brand: Noreva
Category: Axial Check Valves
Valve Size 1" to 10"
Pressure Class Standard ASME B16.34, API 6A
Pressure Class Range Class 150, 300, 600, 900, 1500, 2500, 4500; API 2000, 3000, 5000, 10000, 15000, 20000
Body One-Piece Body
End Connections Flanged, Hub-End, Butt-Weld, Socket-Weld, Threaded
Face-to-Face Standard API 6D
Disc Type Solid
Guiding Centre
Seating Metal-to-Metal
Flow Axial
Type Non-Slam Anti-Surge
Media Application Liquids, Gases
Shut-Off Classification API 598, ISO 5208 Rate E

The streamlined internals of the axial check valve range allow for a turbulence-free flow path around the disc.

The high capacity, smooth flow path results in low pressure drop across all of the axial type valves.

Noreva axial check valve designs use no soft parts and are therefore inherently fire-safe.

There are no wearing parts, for clean services, making it maintenance-free.

The springs are sized according to the flow rates to ensure that the valves are in the fully open position during normal use.

The axial design allows for a streamlined flow path around the disc and high pressure recovery, minimizing pressure drop across the valve.

A short stroke length provides the quick response required by a non-slam check valve.

Low weight discs, short stroke lengths, and spring assistance combine to ensure that it responds quickest to changes in flow direction.

The fast response ensures reverse velocity cannot build up to a level that can damage pumps, pipes, or related equipment.

Pressure surges can occur when a valve is closed against a moving body of fluid, the quick closure results in a considerably lower pressure peak.

Certifications Canadian Registration Number (CRN)
ANSI NSF 61 – Drinking Water System Components – Health Effects
PED 2014/68/EU CE Mark
Design Standards API 6D – Specification for Pipeline Valves
ASME B16.47 – Large Diameter Steel Flanges
ASME B16.5 – Pipe Flanges & Flanged Fittings
ASME B16.9 – Factory-Made Wrought Buttwelding Fittings
ASME B16.10 – Face to Face & End Dimensions of Valves
ASME B16.11 – Forged Fittings, Socket-Welding & Threaded
ASME B16.25 – Buttwelding Ends
ASME B16.34 – Valve Flanged, Threaded, and Welding End
ASME SA Materials
ASTM A Materials
Quality ISO 9001:2015

No manuals available at this time.