10911 Crawford Road   
Homerville, OH 44235   
(330) 877-4497   
Minimize The Possibilities of Boiler/Burner Explosions


Do Your Safety Devices Really Work?

Safety devices on boilers are a serious matter. Not only can equipment be damaged, operations shutdown for extended periods, but also loss of life can occur. During some of our retrofits and troubleshooting experiences, we have found safety devices jumpered out, set at the wrong values, or completely non-functional. Some of these devices have been that way for years without the customer's knowing. Customers have been shocked to learn that these devices were found to be inoperative.

During our system evaluation:
  1. We check the safety device settings/parameters.
  2. We check the process connections for obstructions.
  3. We verify the operation of the complete flame safety/burner management "loop".
  4. We provide documentation showing the status of each device.
Typical Boiler Safety Devices/Switches Common to Most Fuels
  • Proof of Purge
  • Proof of Low Fire Start Positions
  • High Furnace Pressure (Negative Fired Units)
  • Low Instrument Air Pressure
  • Low Water Cutout
  • Auxiliary Low Water Cutout
  • Forced Draft Fan Inter lock
  • Induced Draft Fan Inter lock (Negative Fired Units)
  • High Steam Pressure
  • Excess High Steam Pressure
Typical Boiler Safety Devices/Switches Related to Gas Firing
  • High Gas Pressure Switches
  • Low Gas Pressure Switches
  • Proof of Main Gas Valve(s) Closure
Typical Boiler Safety Devices/Switches Related to Oil/Waste Oil Firing
  • High Oil Pressure
  • Low Oil Pressure
  • Low Atomizing Steam Pressure
  • Proof of Main Oil Valve(s) Closure
  • High Oil Temperature (#6 Oil/Waste Oils)
  • Low Oil Temperature (#6 Oil/Waste Oils)
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