Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2″ NPT to accept a barb fitting if you wish to vent overboard.
Overboard venting is required if PVL or HVL series is used in an exhaust system.
HVL and PVL series vented loops assure clog-free anti-siphon protection for sanitation or engine exhaust systems. The oversized vent valve can easily be removed for inspection or cleaning without tools.
Mount Hardware is included.
Bronze vent ring-2 inch hose and nbspFeatures: allow air to enter to destroy the siphon, but do not allow air and odors to escape! The cap has a 1/2 inch NPT thread, which can be connected to a barb… SKU: NVN-75234 MPN: HVL-2000 UPC: 742985172807
