WET BACK ADVANTAGE

Dry backs are subject to deteriorating rear refractory, leaking baffles, leaking door seals, and often found with a heat-stressed rear tubesheet. Fragile refractory baffling and door seals will require continuous monitoring, maintenance, and replacement, costing thousands of dollars in materials and specialized labor cost over the life of the boiler. In addition, broken baffles and leaking seals will short-circuit boiler efficiency up until repairs can be made, and downtime during repairs can bring your production process to a halt.

Durability
Built in accordance with the ASME Code, the wet back design has proven to give much longer useful life cycles than dry back boilers.

Quality
Each unit is tested and inspected by Hartford and is registered with the National Board of Boiler and Pressure Vessel Inspectors.

Design
State of the art computer design techniques are used in every boiler design. This accounts for accurate calculations of construction materials and optimum utilization of the boiler's performance criteria.

Efficiency
The 3 pass wet back is designed for optimum fuel efficiency and has proven in certified tests to meet and often exceed the efficiencies of 4-pass boilers.

Low Maintenance
There is no refractory rear door, to maintain and no refractory baffles to replace. Elimination of these components results in thousands of dollars of savings.

Tube Sheets
The wet back has independent tube sheets with uniform temperatures. Three and four pass dry back boilers have tube sheets with large temperature variations and this results in premature tube failure and cracks in the tube sheets.

Easy Access
Since there is no large refractory rear door, one man can easily remove the rear cover plates for access to the tubes. Front doors can be opened without removing burner components or controls.

Compact
Computer aided design has made the wet back a space saving workhorse without sacrificing the principle of 5 sq. ft. of heating surface per BHP.

Combustion
CRG uses name brand burner components with proven reliability. Every unit is boiler/burner compatible and tested at the factory prior to shipment.

• Operating & limit pressure control
• Modulating pressure control (when appl )
• Water column with gauge glass combination low water cut-off & pump control
• Probe type auxiliary low water cut-off with manual rest
• Water column drain valve
• Safety relief valve(s)) per ASME Code
• Steam Gauge
• Stack Thermometer

• Operating & limit temperature control
• Modulating temperature control (when appl )
• Low water cut-off control with manual reset
• Combination pressure, temperature gauge
• Hot water return baffle for shock resistance
• Safety relief valve(s)) per ASME Code
• Stack thermometer