Conbraco 40-400-02M Repair Kit

The Conbraco 40-400-02M Repair Kit is a comprehensive field-service solution designed for the maintenance and overhaul of Apollo backflow preventers. As a veteran-grade backflow preventer repair kit, this OEM package includes the critical elastomers and mechanical components required to restore RPZ valve and double-check assembly performance to factory specifications. This kit specifically supports 4-inch Apollo 40 Series assemblies, providing the necessary internal parts to address seat leakage, pressure fluctuations, and relief valve discharge issues. Utilizing genuine Apollo Valves replacement parts ensures full compliance with local plumbing codes and maintains the lead-free integrity of the water system. For technicians managing commercial backflow prevention systems, this kit eliminates the guesswork of sourcing individual O-rings or diaphragms, facilitating a streamlined rebuild of the first or second check modules. Relying on 40-400-02M technical specifications guarantees exact tolerances for high-demand hydronic and potable water applications, ensuring the assembly passes annual field testing without requiring a complete unit replacement.

Key Benefits

• OEM Precision: Contains genuine Apollo Conbraco parts ensuring exact dimensional fit for 4" 40 Series check assemblies.
• Complete Internal Overhaul: Includes all necessary rubber components to resolve common check valve failure points and bypass leakage.
• System Reliability: Restores factory-spec performance for reduced pressure zone (RPZ) and double check (DC) assemblies.
• Code Compliance: Designed to meet stringent requirements for potable water protection in commercial and industrial settings.
• Cost Efficiency: Extends the service life of high-value brass and iron bodies by replacing only the high-wear internal soft goods.

Common Questions

Does this kit work for both the first and second check in a 40 Series assembly?
Yes, the Conbraco 40-400-02M is designed to service either the first or second check module in the 4-inch 40 Series backflow preventers. If both checks require service, two kits should be used.

Are these parts compatible with lead-free (LF) models?
Yes, these backflow rubber parts are designed for use in both standard and lead-free Apollo backflow preventers, as the internal elastomer profiles remain consistent across both versions.

How do I know if my relief valve or check valve needs this specific kit?
If your 4-inch 40 Series unit is failing field tests due to backpressure or if you observe constant relief valve discharge, an inspection of the check discs and O-rings is recommended. Using this kit restores the seal integrity required to pass certification.

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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.