| Check Valves - Hydrodynamic Guided Closing (HGC) Conventionally used Flap type |
| Normex HGC model H-01 |
Conventional Flap type |
| Innovative design, focused to eliminate all constraints of conventional one and offer optimum performance |
Conventional design carries lot of constraints. |
| Internals designed in such a way that laminar flow is not disturbed to a large extent. |
Turbulance is generated in fluid flow due to design limitations. |
| Very low pressure drop acros the valve which saves energy, reduces pump cycle time duration |
Comparatively high pressure losses, requires more energy increases pump cycle time duration. |
| Valve closing mechanism is guided by precise guide & plunger mechanism which ensures perfect sealing. |
Hing-pin-disc closing mechanism has lot of play which results in leakages. |
| Closing mechanism supported by spring force eliminates hammer to a large extent. |
Closing mechanism is by back force of fluid hence maximum effect of hammer which causes many a times damage of pump or bursting of pipes. |
| Compact space saving design. Reduces face-to-face length. Light weight hence easy handling. |
Standard full length valve higher in weight. |
| Vertical or horizontal installation is easily possible. |
Installation recommended for horizontal position. |
| Symmetrically shaped design hence no top or bottom side selection for installation. |
Cover side should be always on top for installation. |
| Material used is of grade FG 260 having higher tensile strength (26 N/mm2) |
Material recommended is FG 200 having lower tensile strength (20 N/mm2) |
