DIN safety valve KAV

vacuumbrasspiston

• Piston instead of diaphragm - for maximum safety even in case of pollution, ice or system overpressure • Adjustment value corresponds to the safe height (reduced line resistance) • Also for outdoor use (manhole) • Sealed system for error-free operation • Pressure relief mechanism in both directions • Proofed Barrier (odour-tight) • Materials resistant to biofuel and biodiesel with max. 100 % FAME • Green fuels ready: suitable for use at tank facilities filed with the new paraffinic fuels HVO or GTL • Watertight up to 10 m water column - ideal for use in flood hazard areas Application For oil carrying suction lines in fuel oil consuming systems where a pipe section is below the maximum tank level. KAV keeps fuel oil from being siphoned out of the tank in the case of leaks. Suitable for fuel oil EL (DIN 51603-1), diesel fuel (EN 590), liquid fuels as per DIN SPEC 51603-6 and DIN/TS 51603-8 as well as biofuel and biodiesel with up to 100 % FAME (EN 14214). This product is therefore ideal for all ecologically upgraded fuel oil consuming systems that use the new paraffinic fuels HVO or GTL as an admixture or 100 %. Also for use in flood hazard areas and flood risk areas. Description Vacuum-controlled shut-off system with a completely new function principle. KAV is closed when the burner pump is not in operation. When the burner pump starts, a vacuum is generated in the suction line. This opens the KAV and fuel oil is pumped from the tank. If the suction line has a leak or if the burner pump stops, KAV closes and the suction line between the tank and the burner pump is closed. KAV features a pressure relief mechanism,