Technical Specifications
Product Overview
Dual Flap Wafer Check Valve
This API 594 Class 150LB wafer type check valve is engineered specifically for water treatment applications, featuring a dual-flap design that minimizes flow restriction. The twin spring-loaded discs ensure rapid response to flow changes, providing positive shut-off against backflow while preventing slamming. Its compact, lightweight construction allows for easier installation and smaller face-to-face dimensions compared to conventional swing check valves.
Technical Specifications
- Size Range
- DN40 - DN800
- Pressure Rating
- Class 150LB
- Design Standard
- API 594
Materials
- Body Material Options
- Cast Iron GG25Ductile Iron GGG40Stainless Steel 304Stainless Steel 316
Compatibility
Supported Flange Standards
- DIN
- ANSI
- JIS
- BS



