Overview
The Spirax Sarco 58169 is a factory-engineered 1″ main valve repair kit built for Series 25 steam control valve systems. This kit supplies all essential internal components needed to restore proper valve function in pressure regulation, temperature control, or combination pressure-temperature applications. Compatible with cast iron main valve bodies, the 58169 enables plant technicians to avoid costly downtime by replacing worn internal components without replacing the entire valve assembly.
Key Features
- Complete repair kit with valve head and seat assembly
- Includes cover gasket and seat gasket for reliable sealing
- Designed for 1″ NPT Series 25 main regulating valves
- Direct replacement components maintain OEM compatibility
- Reduces maintenance costs compared to full valve replacement
- Suitable for steam pressure, temperature, or combined control applications
Technical Specifications
- Part Number: 58169
- Manufacturer: Spirax Sarco
- Valve Size: 1″ NPT
- Series: 25 (cast iron main valves)
- Kit Contents: Valve head, valve seat, cover gasket, seat gasket
- Application: Pressure, temperature, or combination control
- Operating Medium: Steam
- Standard Rating: Up to 250 psi
Typical Applications
- Steam pressure regulation in boiler systems
- Temperature control in water heaters and heat exchangers
- Air handling coil steam valve maintenance
- Tank heating coil control systems
- Industrial steam distribution networks requiring periodic repair
- OEM and aftermarket service applications
Compatibility & Replacements
Compatible With
- Spirax Sarco Series 25 1″ main valve bodies (cast iron)
- 25P pressure pilot configurations
- 25T temperature pilot configurations
- 25PT combination pressure-temperature pilots
- Air-actuated, electric, or back-pressure pilot systems
- Standard steam distribution networks (up to 250 psi)
Replaces / Drop-In Replacement For
- Worn or damaged internal components in Spirax Sarco Series 25 1″ main valves
- Original OEM valve head and seat assemblies
- Standard gasket and seat sets for 1″ Series 25 regulators
- Verify specific valve body serial number and pilot type before ordering
Works With
- Spirax Sarco 25P main valve pressure pilots
- Spirax Sarco 25T main valve temperature pilots
- Spirax Sarco 25PT combination pilots
- Industry-standard steam distribution systems and control loops
- Remote on/off control configurations
