Steam Traps
Steam traps are the valves used to release condensed steam automatically while stopping the escape of live steam. Designed for energy efficiency, steam traps are often found on items used for heating homes and buildings.Steam Trap Failure
It's not too difficult to spot steam trap failure. If the room that houses the trap is overly warm and humid, there's a good chance the trap has failed. If a plume or thin cloud of steam is seen escaping from the condensate receiver or part of the trap, it's quite likely you're experiencing steam trap failure. If you're finding it difficult to maintain boiler pressure or if your heat bill is inexplicably rising, the steam trap is probably the culprit.
Steam Trap Inspection Methods
If you suspect a steam trap malfunction, you'll want have it inspected. Often times steam is escaping through a slow leak, but unless there's a tell tale plume of steam escaping from the trap, you may not even know. Someone trained at steam trap inspection is better equipped to spot the leak. Steam traps can be inspected by sight, infrared technology and through the use of ultra sound.
Visual Inspection -A visual inspection isn't the most reliable since there are defects that aren't visible to the naked eye. A visual inspector also has to empty the trap in order to spot any problems. It's best to call a professional with the proper equipment.
Infrared Thermometer - Infrared thermometer is more trustworthy since it can deduct the smallest changes in temperature. Infrared can be unreliable as well, because different factors around the steam trap can cause differences in temperatures. It's best to use an infrared thermometer in conjunction with ultrasonic inspection.
Ultrasonic Inspection – Probably the most reliable form of steam trap inspection, an ultrasonic tester can detect potential steam trap issues from the inside out. It can spot cracks and dents invisible to the naked eye.
To keep heating equipment running smoothly, it's recommended steam traps are inspected at least twice each year. Sparing no cost to bring in a qualified professional can save on heavy repair bills later.