Vetus VRF56A - Vacuum operated relief valve Blue Water Weighs 10 pounds

Weighs 10 pounds

Stainless steel hinged bimini tot slide for adding to existing rails without disassembly

Refrigerated Box

Rings feature Sewn in beckets to secure grab line

Depth 7-3/4"

Vetus VRF56A - Vacuum operated relief valve Blue Water Weighs 10 poundsIf a waste water tank is being emptied using a powerful shore based pump out station, one unfortunate possibility is that insufficient air might enter through the vent line, causing the tank to implode. To prevent this from happening, this VETUS valve type VRF will automatically open with the increasing vacuum, thus letting air into the tank. Model VRF56 has a free flow area of more than 1,100mm2 and thus fulfils the requirements of the relevant ISO