Wafer Tilting Disc Check Valve is a space-saving, lightweight, and cost-effective non-return valve. With its low-pressure drop, quick-closing disc, and anti-water hammer performance, it is widely applied in pump discharge lines, water supply, power, and industrial systems where compact installation and reliable backflow prevention are required

Description

1. Structure Of Wafer Tilting Disc Check Valve

Body: Wafer-type, very slim and compact; fits between two flanges (ANSI, DIN, JIS standards). Saves space compared to full-bodied valves.
Disc: A circular or segmental disc, mounted slightly off-center on a pivot shaft so it tilts open/closed with the flow.
Hinge/Pivot Shaft: Located above the centerline of the valve, allowing rapid disc response.
Seat: Can be soft-seated (elastomer, PTFE) for bubble-tight shut-off or metal-to-metal for high temperature/pressure service.
Spring (optional): Some designs add a torsion spring for faster closure to further reduce water hammer.

2. Advantages Of Wafer Tilting Disc Check Valve

Compact & Lightweight: Wafer design minimizes installation space and reduces valve weight compared to swing check valves.
Low Pressure Drop: Tilting action ensures streamlined flow, reducing energy loss.
Quick Closing: Disc closes faster than swing type, minimizing water hammer.
Versatile Installation: Can be installed in horizontal or vertical pipelines (upward flow).
Cost-Effective: Less material and simpler body structure mean lower cost and easier maintenance.

3. Features Of Wafer Tilting Disc Check Valve

Slim Wafer Body: Easy to install between standard flanges.
Short Stroke Disc: Requires only a small disc movement to fully open/close.
Anti-Water Hammer Design: Tilting disc closes before reverse flow builds up.
Multiple Materials: Body (cast iron, ductile iron, carbon steel, stainless steel, alloys), Disc (stainless steel, bronze, etc.), Seat (metal or soft).
Wide Size Range: Common from 2" (DN50) up to 48" (DN1200) or larger for industrial systems.

4. Applications Of Wafer Tilting Disc Check Valve

Widely used in pumping systems and large pipelines, especially where water hammer prevention is important and space is limited:
Water Supply & Distribution: Pump discharge, potable water, desalination plants.
HVAC Systems: Chilled water and condenser water return lines.
Power Plants: Cooling water, steam condensate, and feedwater systems.
Oil & Gas / Petrochemical: Process lines, hydrocarbon service.
Marine & Offshore: Ballast systems, seawater cooling lines.
General Industry: Any system requiring backflow prevention with compact design.

 

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