Product

Wafer Check Valve

A compact, lightweight, and cost-effective non-return valve designed to prevent backflow in pipeline systems. Its wafer-thin body fits snugly between two pipeline flanges, significantly saving space and installation time. Most models feature a dual-plate or single-disc design with a spring-assisted closing mechanism to ensure rapid shutoff, reduce water hammer, and protect pumps and compressors. It is suitable for horizontal and vertical upward flow installations.

Benefits

Space-saving design: Slim wafer body fits between flanges, ideal for compact systems
Quick and tight shutoff: Spring-loaded disc minimizes backflow and water hammer
Low pressure drop: Streamlined internal flow reduces energy loss
Easy installation and maintenance: Lightweight structure allows quick access
Versatile mounting: Works in both horizontal and vertical upward pipelines
Corrosion resistance: Available in a range of stainless steel or coated materials

Technical Data

Parameter	Details
Function	Prevent backflow (non-return valve)
Connection Type	Wafer type (fits between ANSI, DIN, or JIS flanges)
Material	Body: Cast Iron, Ductile Iron, WCB, Stainless SteelDisc: SS304, SS316, Duplex, or Aluminum BronzeSeat: Metal-to-Metal or EPDM, NBR, PTFE
Max. Nominal Pressure	PN10 ~ PN40 / Class 150 ~ Class 300
Max. Nominal Size	DN40 ~ DN1200 (1-1/2” ~ 48”)
Allowable Fluid Temperature	-10°C to +200°C (depending on seat and material selection)

Sectional Drawings

Applications

Water supply and treatment systems
HVAC and building utilities
Industrial process lines
Petrochemical and power plants
Pump discharge lines
Marine and offshore piping systems