Anti-siphon safety valve 55B

BSPflow-controlEN ISO 13617-2

It’s a Safety Device in according with Directive 2014/34/EU and harmonized standard EN ISO 13617-2. The valve is designed to prevent siphoning of liquid from an aboveground tank to the suction pipe installed at a lower level. The valve is also provided with a pressure relief valve which opens at around 1,5 bar in case of pressure rising in the pipeline. Standard Model is for traditional fuel without additivies PTFE coated is a model for spécial fuel, non-aggressive solvents or compatible chemical products. - The valve is instal at the highest point of the tank, normally on the manhole cover. - The valve is set up in the fac tory with random parameters: the final adjustment is to be made after its fixing - The value "0” of the diagram F corresponds to the measure requested to open the valve at certain value of the pressure that, to make it easy, is marked with grooves on the spindle These grooves are related to the exact height H of the Schéma S that shows the tank and the dispenser. - In order to adjust the valve remove the brass cap and screw up (to increase the force) or unscrew to obtain the needed value H - After adjustment of the pressure value, fix the cap again not before have checked the integrity of the 0-ring seal