Description
The Xylem-Hoffman Specialty 600403 is a genuine OEM 2-1/2″ Diaphragm Kit engineered to restore proper valve operation and extend the service life of compatible Hoffman Specialty hydronic and steam system components. Designed as a direct replacement, this kit provides a reliable, cost-effective alternative to full valve replacement and ensures continued system integrity in demanding HVAC and plumbing applications.
Product Overview
Hoffman Specialty, a trusted brand under the Xylem portfolio, has long been a standard in hydronic heating, steam, and pressure-regulating systems. The 600403 Diaphragm Kit is purpose-built to maintain the precise pressure control and flow regulation that these systems demand. Using genuine OEM components helps ensure a proper fit and consistent performance.
Key Features
- Genuine Xylem-Hoffman Specialty OEM replacement diaphragm kit
- Designed for 2-1/2″ valve configurations
- Restores proper valve sealing and pressure regulation
- Cost-effective alternative to full valve replacement
- Ideal for hydronic heating and steam system maintenance
- Supports reliable, long-term system performance
Applications
- Hydronic heating systems
- Steam distribution and control systems
- Pressure-regulating valve maintenance
- Commercial and industrial HVAC applications
Why Choose OEM Replacement Parts?
Using genuine Xylem-Hoffman Specialty replacement components ensures compatibility, maintains system warranties, and delivers the performance consistency that aftermarket alternatives may not provide. The 600403 Diaphragm Kit is the recommended solution for technicians servicing Hoffman Specialty valves in the field.







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