Locking Devices Twist-Lock®

Flush/Spring Clip Mount

White powder-coated aluminum with heat sinks

Four (4) Latex-Free Gloves

Minimum Continuous: -40° C w/o impact

Vetus VRF56A - Vacuum operated relief valve Perko Locking Devices Twist-Lock®If 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