The non-return valve is an anti-flooding device that closes automatically when a backflow of the sewer system occurs and allows a return to normal drainage when the backflow ceases.
Code | Color | ø mm | Anti-rat dustpan* | |||
NRO200A | Red RAL 8023 | 200 | ✔ |
● The Idrostop anti-return valve is CE marked in compliance with the UNI EN 13564-1 standard
● Equipped with a special PVC anti-rat blade
● The valve must be installed directly on the drain pipe
● Place the valve inside a well to facilitate inspection and maintenance
● Respect the direction of flow indicated on the cover by installing the socket upstream
● The body of the valve must be flat in the direction perpendicular to the flow and with a slope maximum of 2.5°
● The pipes and fittings that can be used are those complying with European standards and it is recommended that the normal outlet dimensions are not smaller than the inlet ones
● Inspection of the device should be carried out at least twice a year via the control screw cap, maintenance for restoring the moving part by disassembling, cleaning and replacing parts should be performed by experienced personnel
ø 200 mm