Description
The Mepco (Dunham Bush) 42-815 is a Float & Thermostatic (F&T) steam trap engineered for dependable condensate and air removal in low-pressure steam heating systems. With a 2″ NPT connection and a 15 PSI operating pressure rating, this trap is well-suited for commercial and industrial hydronic and steam distribution applications where continuous, modulating condensate discharge is required.
How It Works
Float & Thermostatic traps combine two mechanisms in one body. The float valve responds continuously to condensate levels, opening and closing to discharge liquid condensate as it accumulates. The thermostatic air vent automatically purges non-condensable gases and air from the system at startup and during operation, improving system efficiency and heat transfer.
Key Features
- Float & Thermostatic (F&T) design for continuous condensate discharge
- 2″ NPT pipe connections for straightforward installation
- 15 PSI maximum operating pressure rating
- Integrated thermostatic air vent for automatic air and non-condensable gas elimination
- Robust construction suitable for commercial and industrial steam systems
- Mepco (Dunham Bush) quality — a trusted name in steam system components
Typical Applications
- Low-pressure steam heating systems
- Unit heaters and heat exchangers
- Steam distribution mains and branch lines
- Commercial boiler and hydronic system condensate return
- Industrial process steam applications at or below 15 PSI
Product Specifications
- SKU: 42-815
- Brand: Mepco (Dunham Bush)
- Connection Size: 2″ NPT
- Maximum Operating Pressure: 15 PSI
- Trap Type: Float & Thermostatic (F&T)







Reviews
There are no reviews yet.