| Lightweight and Compact Wafer Design |
Installs between mating flanges with 10 to 20% the weight of flanged swing checks in popular sizes - Saves money in initial valve cost and provides lower installation cost. |
| Dual Plate, Flat Seat Design |
Plate heel is lifted first by design to prevent seat wear. Employs two spring Ioaded plates with flat seats - Gives superior performance and bubbletight shutoff with resilient seats. |
| Independent Spring Action |
Maximum deflection of 140°, provides improved valve response and longer life - Saves money with longer valve life and improved system performance by reducing water hammer. |
| Independent Plate Suspension with Unique Hinge Design (larger sizes) |
Improves valve response and reduces friction forces by 66% - Further assurances of non-slam performance with faster valve response. |
| Simple, External Body Geometry |
Configuration simplifies valve insulation - Saves money. |
| Variety of Body Designs Available - Lug and Double Flange |
Provides options to suit application needs - Eases your selection process by utilizing the industry leader as your single source. |
| Wide Variety of Materials |
Versatility for many services - Satisfies more application needs. |
| Flexibility in Installation Position |
Provides more rigidity than pipe, eliminating concerns of pipe bending loads of flanged valves - Safety against thermal or seismic catastrophes. |
| Body Strength and Rigidity |
Some sizes suitable for horizontal or vertical up positions -Simplifies piping design, eliminates constraints that swing checks create. |
| Retainerless Duo-Chek Design Eliminates Body Penetrations |
For critical service applications, prevents possible escape of unwanted and/or hazardous materials to atmosphere - Safety in critical services eliminates and/or environmental concerns. Standards in Lug and Double Flange Designs. |
| Vertical Hinged Design |
In horizontal position flow allows plates to function freely and full open under lower flow conditions as compared to swing check - Reduces pressure loss, improves dynamic response and eliminates valve chatter. |
