| CHECK VALVE - BALL TYPE & CONVENTIONALLLY USED FLAP TYPE |
| Normex Ball type B-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. |
| Opening & closing mechanism is by way to free flowing rubber coated ball hence eliminated hing-pin-disc failure. |
Opening & closing mechanism involves hing-pin-disc calls for frequent maintenance. |
| Maintenance free - in case required open top cover. No need to remove valve from pipe line - very low down-time. |
For maintenance, valve is required to remove from pipe.
Longer down time. |
| Same valve can be used for wide range of applications as it can be supplied with rubber or FRP lining especially for corrosive and errosive applications. |
No such possibility. For these applications special metallurgy required to be used which results in paying high cost for the valve. |
| Vertical or horizontal installation is easily possible |
Installation recommended for horizontal position. |
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) |
