Tubeless steam boiler
4VT Cyclone Steam
Hurst Boiler
Four Pass High-Pressure Tubeless Boilers
The Cyclone Steam Boiler provides for exceptionally high efficiencies, lower fuel costs, and extremely rugged construction.
Inspection Access
- The waterside openings are located in the most effective positions. The lower handholes offer far better access for both cleanout and inspection.
- These more functional locations avoid the obstructing handhole "tunnels" used by our competitors.
- The top opening offers a strategic view of the furnace crown sheet.
More Steam Storage
- Capacity to handle swing and spike loads - quick recovery - quick response.
- The larger steam-release surface is calmer, reducing carry over of unevaporated water.
- The resulting drier steam also reduces system scaling.
- In addition, dry steam helps to eliminate unnecessary extra condensate. Energy and fuel are saved. Longer life results.
Four-Pass Design
- The gases leaving the furnace are split four ways and travel through four individual serpentine fin passages to the stack outlet.
- Each quarter of the heat travels its own four-pass path (see illustration below).
- Heat transfers evenly to the fins and boiler shell, eliminating the metal stress due to uneven heat transfer common in other designs.
