Febco 905-047 Bonnet Assembly Kit for 765 (1/2"–3/4")
Replacement bonnet assembly for Febco Series 765 pressure vacuum breakers, compatible with 1/2"–3/4" models. This factory-style bonnet kit restores the bonnet seal and allows continued protection against back-siphonage without replacing the entire valve.
- Complete repair kit: bonnet, bonnet O‑rings (new and old style), retaining nut and lubricant for reassembly.
- Exact fit: designed for Febco 765 pressure vacuum breakers in 1/2" and 3/4" sizes to match factory dimensions.
- Bronze construction: bonnet suited for use with the 765 valve body and built to resist corrosion in typical irrigation and potable water systems.
- Service rating: maintains system protection up to a maximum working pressure of 150 psi (10.3 bar).
- Documentation included: installation, specification and freeze-protection manuals available for safe, correct servicing.
Intended for qualified service personnel: shut off inlet and outlet valves and relieve system pressure before disassembly. Follow the included installation and maintenance manuals for step-by-step guidance; hand-tighten the bonnet during reassembly and apply the supplied lubricant to the O‑rings. Regular inspection and prompt replacement of worn seals helps extend valve life and preserve backflow protection.
See the specification sheet and maintenance manual linked on the product page for full parts diagrams, replacement procedures and freeze-protection recommendations.