Febco ball valves do not have any protection or warranty from freeze damages. The Freeze Tolerant Ball valve company developed the best ball valve suited for cold weather. It has the CSS Approved certification. It is the only ball valve approved for severe cold weather applications. It is the only ball valve with patented freeze-plug technology to protect it against freeze damage. Other products like the Febco FR 767 PVB states that it was made to be left out in the cold. However, we have tested this unit and found it highly susceptible to freezing and cracking. They are not sold in Colorado because they are not made to endure extreme cold snaps common in Colorado. That is what the distributor told me. Unfortunately most contractors do not like this freeze tolerant valve because they want to keep replacing the febco ball valves that readily crack on the febco pvb units, (the Febco 765 units as wells as any febco products that have febco valves on them.
Febco isn't alone. Watts, Apollo, Wilkins all lack cold weather valve products. They don't have freeze resistant or frost resistant or frost proof or cold weather valves on any of their products either.
 I have personally changed out over 1,000 cracked ball valves in the last 20 years. Most of them have been specifically the Febco ball valve. The febco valve product is really not at fault. Either are the Wilkins ball valves, the Watts ball valves or other ball valves. A person just needs to maintain their febco valve products. However, I would think that Febco and others would want to make a better cold weather valve. But they really don't because they make a lot of profit selling replacement valves. I have found contractors and local distributors to be of the same mind set. Greed & Corruption is what seems to be in the for front of their minds. They put profit before integrity.