Safe-Flo™ HVE Valves PreviousNext Safe-Flo™ HVE Valves M1030HVSE 0.0 star rating Write a review Safe-Flo one-way valve, grey, for use on high-volume evacuation lines to prevent backflow. Combine with your favorite HVE tip. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.