Backflow Freeze Protection Valve
Products water safety backflow prevention model zwfr zwfr the zwfr freeze relief valve prevents damage from sudden or unexpected freezes and is installed on backflow preventers and pressure vacuum breakers.
Backflow freeze protection valve. However pressure vacuum breakers only protect the assembly itself not the water lines. Backflow insulation bags and pouches can be a great option for protecting backflow prevention valves from freezing during the cold spring fall and winter months. Apatner pipe insulation cover backflow insulation cover for for winter freeze protection 16 w x 20 h outdoor sprinkler valves cover irrigation backflow valve cover artigifts insulated pouch backflow insulation cover for winter freeze protection pale khaki 20 w x 25 h measure before purchase. The new lead free backflow preventers are more fragile.
Does a backflow insulation. See our backflow insulation bags for sale here these polar parkas are slid over the backflow valve and attached piping to produce a blanket of warmth. Our most popular backflow preventer model the 3 4 our most popular backflow preventer model the 3 4 975xl2ft reduced pressure principle backflow preventer comes with integral male 45 flare sae test fitting. These are typically covered in blue rubber and are located before and after the actual backflow device.
Typically in solar applications the valve port opens on descending temperatures allowing the near freezing water in the solar. Kgmcare backflow preventers protection insulated cover pouch for winter pipe freeze protection water sprinkler valve box and controller 16 x 20 4 5 out of 5 stars 25 12 79 12. This is the lower of the two shut off valves. You need to shut the one off before the device 2 on the picture above to keep more water from entering it.
These assemblies are easy to install maintain and repair. The older backflow preveters are comprised of lead and brass which will expand some in the cold before cracking. 1 turn off the shut off valve on most residential backflow devices there are two shut off valves. Dole freeze protection valve the eaton fp 35 and fp 45 freeze protection valves utilize a reliable self contained dole power element which issensitive to temperature and operates without any electrical power or sensors.
Some models of pressure vacuum breaker assemblies include built in freeze protection valves.