Proquip Dual-Plate Check Valve (Wafer Type) – High-Performance API 594 Valves

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Key Features & Benefits

• Retainerless, Emission-Free Design – No body wall holes ensure zero external leakage, ideal for critical applications.
• Uninterrupted Gasket Surface – Superior sealing integrity for ANSI B16.5 & B16.47 flanges.
• Intrinsically Fire Safe – Reliable performance under extreme conditions.
• Reduced Disc Weight – Minimizes slamming & water hammer, protecting pipelines.
• Disc Side Hinges – Eliminates gravity effects, lowering energy costs in horizontal installations.
• Maximized Flow Path – Lower pressure drop with no gasket surface encroachment.
• Fast-Acting Spring Mechanism – Rapid response to flow reversal, reducing stress and extending service life.
• Shock Bumpers – Enhance cycle life in severe service with minimal wear.
• Extended Seat Life – Hinge clearance prevents disc dragging, ensuring durability.

Certifications & Compliance

✔ Exceeds API 598 test requirements for metal-seated check valves. ✔ API 594 Face-to-Face Dimensions – Guaranteed compatibility. ✔ Flange Standards:

• ANSI B16.5: NPS 2-24 (DN 50-600)

• ANSI B16.47 Series A: NPS 26+ (DN 650+)

• ASME B16.47 Series B (upon request).