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4″ Dual Plate Wafer Check Valve – ANSI 150, 225 PSI

$202.49 on Amazon.com (as of October 17, 2026, 12:37 PM EST) View details ↗

Protect your piping system from backflow with the **CVCSWDPV400X 4-inch Dual Plate Wafer Check Valve**, a high-performance solution for industrial, municipal, and commercial applications. Engineered with a **split-disc, spring-loaded dual-plate design**, this valve automatically responds to flow changes, closing before reversal occurs to prevent water hammer and line vibration—ideal for water processing, industrial pumping, and HVAC systems.

The valve features a **heavy-duty cast ductile iron body** with an **epoxy coating** for corrosion resistance, paired with **304 stainless steel internals** and a **Viton seat** for long-lasting performance. ANSI Class 150 flange compatibility ensures seamless integration with standard 4-inch piping systems, while its **compact wafer design** reduces installation footprint and stress compared to traditional swing check valves. Whether for municipal water infrastructure or commercial HVAC, this valve delivers reliable leak prevention and durability in demanding environments.

Flange RatingANSI Class 150
Shell Pressure Rating225 PSI
Body MaterialEpoxy-coated cast ductile iron
Seat MaterialViton
Internal Material304 stainless steel
DesignDual-plate (split-disc) wafer style
What types of systems is this valve best suited for?
This valve is ideal for industrial fluid handling, municipal water operations, and commercial HVAC systems where backflow prevention and vibration resistance are critical.
How does the dual-plate design help prevent water hammer?
The spring-loaded split-disc mechanism closes automatically before flow reversal occurs, minimizing pressure spikes and reducing line vibration compared to traditional check valves.
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