Febco 765 Check Valve Assembly Repair Kit (905-052)

When this part matters

• Weeping/leaking that persists after the system is pressurized
• Backflow test results that indicate a check isn’t sealing consistently
• Seasonal “first-start” issues after winter stress (freeze/thaw)
• Debris-related sealing problems after municipal work or spring startups

How we handle it (service-first)

• Confirm the device: verify model/size and access (most commonly 1" thru 1-1/4" Febco 765 PVBs).
• Identify the failure mode: debris vs. worn rubber vs. physical damage.
• Choose the right path: service the check assembly when the body is sound; recommend replacement when the assembly is compromised or the body is damaged.
• Document for repeatability: what we found, what was changed, and what to watch next season.

Part naming (to reduce confusion)

The description you’ll often see from suppliers is:

905-052 — 765 Check Valve Assembly Repair Kit (fits Febco 1" thru 1-1/4" Model 765 PVBs)

We still verify the exact device and configuration on-site before ordering/installation.