Piping Materials : Steam Traps

Clause Details
STT-MAT-001 Removing condensate form steam pipes is essential for proper heat transfer, avoiding water hammer.
STT-MAT-002 Removing air or non-condensable gases from steam system is also essential for avoiding adverse effect on heat transfer function.
Non-condensable gases can dissolve in condensate to create acids and corrode piping systems.
STT-MAT-003 Stream trap help remove air, non-condensable gases and condensate without removing steam from steam systems.
STT-MAT-004 Steam traps are required at vertical risers / loops / low points.
STT-MAT-005 Stramp traps are required at every 50-60 meters on horizotal steam header.
STT-MAT-006 Steam traps are required ahead of all possible dead ends e.g. shutoff vales on bypass lines.
STT-MAT-007 In steam tracing and jacketing service, steam trap is required at the steam supply manifolds for feeder lines and at the condesate collection manifolds.
STT-MAT-008 For steam operator equipment, steam trap is required ahead of humidifier, pumps and turbines etc. Also in condensate outlet from the equipment using steam (e.g. Condensers, Coils, Heaters, Drivers etc.)
STT-MAT-009 Selected steam trap should function at maxium condensate load provided by process department.
STT-MAT-010 Steam traps are divided into three categories : Density operated steam traps, Temperature operated steam traps and Kinetic energy operated steam traps.
STT-MAT-011 Ball float and inverted bucket steam traps are density operated.
STT-MAT-012 Balanced pressure, liquid expansion and bimetallic steam traps are temperature operated.
STT-MAT-013 Thermodynamic and impulse/orifice steam traps are kinetic energy operated.
STT-MAT-014 Ball float steam trap has a ball which floats on condensate, attached to small valve stem, and this ball opens the codensate outlet valve when condensate level rises up to a certain level.

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