
WAFER-STYLE AXIAL FLOW CHECK VALVE
MODEL NZW

​MODEL NZW
Size Range: 2 - 12 inch
ASME Class: 150 / 150/300 / 600 / 900 / 1500 / 2500
Champion Valves Inc. Axial Flow Wafer Check Valves come in two distinct body designs – iron
and steel. Our Model NZW valve facilitates a unique flow pattern that reduces slam
characteristics and minimizes energy and pressure loss. This economical design offers high-
quality performance for liquid, steam, and gas applications.
VALVE FEATURES
Offers efficient drop-in replacement for API 594 check valves in high-turbulence liquid or gas applications.
Dual-rated steel body option can be installed between ASME class 150 and 300 flanges.
Face mount assembly allows easy access for maintenance and permits zero fugitive emissions.
Internally mounted compression-style spring boasts a longer life than torsion-style springs.
Unique patented flow path promotes laminar flow and reduces total pressure loss.
Engineered for rapid in-field repairability to mitigate downtime and reduce shutdown costs.
CONSTRUCTION MATERIALS
Body Material
Ductile Iron
Carbon Steel
316 Stainless Steel
Guide Material
Ductile Iron
Carbon Steel
316 Stainless Steel
Disc Material
304 Stainless Steel
316 Stainless Steel
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Seat Material
25% Glass Filled PTFE
Integral Metal
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Spring Material
316 Stainless Steel
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