BAVCO - Backflow Reference Manual - Febco
www.bavco.com › ref-manual-groupsDescription The Model 765 is a pressure vacuum breaker assembly. Production began approximately 1975. It is of bronze body construction. The check seats are cast in the body and are not replaceable. Check springs are contained on the 1/2"-1 1/4" size when the bonnet is removed. The 1 1/2"-2" check spring is not contained when the bonnet is removed.
PRESSURE VACUUM BREAKER - SPRINKLER TALK
www.sprinklertalk.com › manuals › febco_wattshammer downstream of the backflow preventer can cause excessive pressure increases. Excessive pressure situations should be eliminated to avoid possible damage to the system and device. See recommended freeze protection procedures. (Freeze Protection 765—Technical Sheet FP765) MAINTENANCE MANUAL MODEL 765 TYPICAL INSTALLATIONS 765 - FIELD ...