Overview
The Spirax Sarco FT450 / FA450 valve mechanism kit is a complete replacement assembly designed for Spirax Sarco float and thermostatic (F&T) steam traps. This kit contains the essential internal valve mechanism components required to service and restore FT450 and FA450 series traps to full operational capacity. The kit enables maintenance professionals to perform in-place repairs without requiring complete trap replacement, reducing downtime and maintenance costs.
Key Features
- Complete valve mechanism assembly with float and thermostatic components
- Stainless steel internals for corrosion resistance and durability
- Direct replacement for FT450 and FA450 series traps
- Enables in-place trap servicing without removal from pipeline
- Designed for industrial steam systems up to 465 psi (32 bar)
- Continuous condensate discharge at saturation temperature
Technical Specifications
| Manufacturer | Spirax Sarco Inc. |
| Product Type | Valve Mechanism Kit (Complete Assembly) |
| Compatible Models | FT450, FA450 (various sizes and connections) |
| Maximum Operating Pressure | 465 psi (32 bar) |
| Valve Type | Float and Thermostatic |
| Internal Materials | Stainless Steel (float, vent, valve seat) |
| Application | Steam Condensate Drainage |
| Design | Horizontal In-Line Configuration |
Typical Applications
- Reboiler and heat exchanger condensate removal
- Industrial steam heating systems
- Large absorption refrigeration systems
- Pressure-dependent process steam applications
- Combined use with Spirax Sarco mechanical condensate return pumps
Compatibility & Replacements
Compatible With
- Spirax Sarco FT450 float and thermostatic steam traps (all sizes)
- Spirax Sarco FA450 steam trap models
- FT450-4.5 (NPT connections, 3/4″, 1″)
- FT450-32 (1-1/2″ ANSI 300 flanged)
- FT450 (4″ ANSI 300 flanged and DN80/DN100 sizes)
Replaces / Drop-In Replacement For
- Original Spirax Sarco FT450 mechanism assemblies
- Original Spirax Sarco FA450 mechanism assemblies
- Worn or damaged internal trap valve components in FT450/FA450 units
Works With
- ANSI/ASME flanged connections (Class 300)
- NPT threaded connections
- Socket weld connections
- Horizontal in-line trap configurations
- Industrial steam systems rated to 465 psi
