Taco Comfort Solutions’ brass boiler-feed and dual-check backflow preventer with atmospheric vent is available as a combination unit; or, the boiler-feed valve and backflow preventer each can be purchased separately. Designed for use in hydronic heating systems, the combination unit prevents heating-system water form flowing back into the supply water piping if supply pressure falls below heating-system pressure. It also offers simple pressure-setting adjustment between 10 and 25 psi, which is separate from the exclusive, lockable fast-fill lever, the company says. The combination valve is available in 1/2” cast iron union sweat or union NPT feed valve with a brass backflow as well as 1/2” and 3/4” brass union sweat or union BPD feed valve with a brass backflow. The backflow preventer, if purchased separately, is available in 1/2” and 3/4” union sweat or union NPT. Taco now also offers brass boiler-feed valves in 1/2” and 3/4” union sweat or union NPT.

Taco Comfort Solutions. www.tacocomfortsolutions.com