Watts 0877555 Repair Kit

The Watts 0877555 is a high-performance N223B repair kit engineered specifically for 2.5-inch and 3-inch high capacity water pressure reducing valves. As a veteran technician knows, maintaining water pressure regulator seating and diaphragm integrity is critical for protecting downstream commercial plumbing and managing thermal expansion. This genuine RK-N223 restoration package allows for full in-line serviceability, eliminating the need to pull the entire bronze body from the main line during scheduled maintenance or emergency pressure surges. The design integrates a bypass feature to handle thermal expansion, ensuring system stability in high-demand environments. This kit is the standard for Series N223B and N223BS regulators, providing the internal PRV replacement parts required to resolve pressure creep, vibration, or reduced flow rates. By replacing the diaphragm and seat assembly, you restore the original set point accuracy and prevent the costly water waste associated with failing pressure reducing valve seals.

• Full Compatibility: Designed specifically for repair of 2.5" and 3" Watts N223B and N223BS series regulators.
• In-Line Service: All internal components are accessible without removing the valve body from the pipe, reducing labor hours.
• Super Capacity Support: Optimized for high-flow installations requiring precise pressure regulation and durability.
• Complete Hardware: Includes the high-quality diaphragm, seat, disc, disc screw, and all necessary bottom plug gaskets.

How do I know if my 2.5-3" N223B valve needs a rebuild?
If you observe downstream pressure creep above the 50 psi standard setting or hear "water hammer" noise during flow changes, the internal diaphragm or seat has likely degraded. This Watts 0877555 repair kit is the correct solution for restoring these high capacity regulator units.

Does this kit work for both threaded and flanged N223 models?
This kit covers the 2.5-inch and 3-inch N223B threaded (NPT) models. For 3-inch flanged (N223F) connections, verify the specific ordering code as flanged internal specs may vary based on the series revision.

What is included in the RK-N223 0877555 kit?
The kit contains the primary technical components: one diaphragm, one seat, one disc, one disc screw, one seat gasket, and one bottom plug gasket.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.