Honeywell 314459A Rebuild Kit

Maintain the peak performance of your pneumatic systems with the Honeywell 314459A Rebuild Kit, the industry-standard solution for field servicing the VP522A1039 sequencing water valve. As a direct OEM replacement part, this kit is engineered to restore factory-spec tight shutoff and precise pneumatic valve control in demanding three-pipe fan-coil and induction unit applications. This package includes a precision-machined valve stem, a durable disc holder, and the necessary button assembly, ensuring a full internal refresh without the cost of a total valve body replacement. The 314459A is identical to the 314459A/U (Universal) designation, providing a seamless fit for legacy and modern Honeywell builds alike. By replacing worn internal components, contractors can eliminate bypass leakage and improve the modulation tracking of hot and cold water sequencing. This kit is built for long-term HVAC system maintenance, providing the reliable seating and mechanical integrity required for high-cycle pneumatic actuators.

• Optimized Compatibility: Purpose-built for the Honeywell VP522A1039 1/2-inch three-way mixing unitary valve.
• Full Internal Overhaul: Includes the stem and disc holder, button with screw, packing, and technical instructions for a complete field repair.
• Leakage Prevention: Restores the original molded-in composition discs interface to ensure a tight shutoff across all ports.
• Cost-Effective Maintenance: Extends the service life of existing pneumatically operated water valves without requiring piping modifications.
• Universal Standard: Fully interchangeable with the 314459A/U, ensuring consistent performance across various commercial building control environments.

Is the 314459A kit compatible with other VP series valves?
This specific rebuild kit is optimized for the VP522A1039. While it follows general Honeywell pneumatic design standards, always verify your specific valve's Cv rating and port configuration before installation.

What is the difference between the 314459A and the 314459A/U?
There is no functional or physical difference between the two; the "U" suffix simply denotes "Universal" packaging for the wholesale market. Both contain the same high-tolerance service components.

Does this kit include the packing gland?
Yes, standard Honeywell rebuild kits for the VP522 series include the necessary packing and screws required to reseal the valve stem assembly effectively.

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.