SSPN ReliabilityEdge Pvt. Ltd.

Ultrasound Analysis

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Steam Trap Performance Detection

Steam Trap Performance & Faults Detection
Our Product: We render our services in ‘Steam Trap Performance & Fault Detection’ through Ultrasound/ Ultrasonic measurements.
(It is always better to use, combination of NDT methods to confirm steam trap performance, Like combination of Visual, Thermography and Ultrasound Measurements. Please see ‘Steam Traps in Condition Monitoring’ for it.)
Ultrasound Measurements of Steam Trap can be done from distance too and hence, many steam traps can be covered from one place, just to locate the faulty one, than the expert can reach to faulty steam trap to investigate the trap more deeply.
Procedure:
  1. You have to schedule the inspection as per your suitability.
  2. Our expert team will carry out the inspection of the given Steam Traps at your place on scheduled days.
  3. The faulty/ open/ chocked steam Traps will be identified.
  4. Our expert will then photograph the part of area where the steam trap is situated and the exact position of faulty trap will be marked on the photograph. Also, the faulty steam traps will be tagged.
  5. Detailed reports will be submitted after inspection.
  6. The photographs will be submitted along with report to show the exact position of faulty traps.
  7. Verification Survey will be carried out after correction of faults/ anomalies.
 
Preface:
Steam traps are automatic valves designed to discharge condensate (and vent air) without losing steam. And like all mechanical devices, they are subject to wear that will eventually require maintenance to restore to manufacturer specifications and prevent:
  • Steam Leakage
  • Blocked Condensate Discharge (i.e. Cold Traps)
  • Open Trap
 
Steam Trap inspection benefits highly of Ultrasonic Technology: Traps in pre-failure phase starts generating revealing ultrasonic signals. Ultrasound Measuring Instrument (SDT 270) allows detecting these signals and translating them into audible and analyzable signals. SDT ultrasonic detectors accurately shift specific ultrasonic frequencies into audible a frequency, which gives us a truly representative inside view of the trap.
 
Take, for example, the thermal image published on SDT website. This image was captured by Level II Infrared Thermographer, Craig Casler, who provides various PdM surveys throughout the North East.
 
 
Going by the thermal image only, the trap appears Okay. The inspector does thorough work when he decided to also listen the ultrasound signature of this trap.
Using SDT 170 equipped with contact probe, he inspected the ultrasonic sound. Clearly that trap was failed mechanically and is not performing its function.
The thermography is required to ascertain whether or not the trap is blocked, and ultrasound is a preferred method to check for steam leakage because a leaking vapor sound is significantly different between steam and condensate.
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