The new Taco 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 can each be purchased separately. It offers simple pressure setting adjustment between 10 and 25 psi which is separate from the exclusive, lockable fast fill lever. It is available in ½-inch cast iron union sweat or union NPT feed valve with a brass backflow as well as ½-inch and ¾-inch brass union sweat or union NPT feed valve with a brass backflow.
Taco www.taco-hvac.com