DS Pipe and Steel Supply

Steam Traps

Steam traps remove condensate (water formed by the condensation of steam) and non-condensable gases from the steam lines without allowing steam to escape. They operate on the principle of temperature, density, or mechanical action to discharge condensate and prevent the loss of steam. Steam traps ensure that steam is efficiently utilized and not wasted, while also preventing water hammer and damage to equipment caused by the buildup of condensate.

Types of Steam Traps

  • Thermostatic Steam Traps: These traps use the difference in temperature between steam and condensate to open and close. They are well-suited for applications with varying loads.
  • Mechanical Steam Traps: Mechanical traps use float mechanisms, leverage, or other mechanical means to open and close based on the density of the condensate.
  • Thermodynamic Steam Traps: These traps operate based on fluid flow and velocity dynamics. They are effective in handling high-pressure and high-capacity applications.


Steam traps are used in various steam systems across industries such as power generation, chemical processing, food and beverage, pharmaceuticals, and HVAC systems. They are installed at low points in the piping system and at points where condensate accumulates, such as steam mains, steam tracing lines, and heat exchangers.


Properly functioning steam traps are crucial for the efficient operation of steam systems. They help maintain optimal steam quality, prevent waterlogging of equipment, reduce energy consumption, and prolong the lifespan of steam system components.


Regular inspection and maintenance of steam traps are essential to ensure their proper functioning. This includes testing for leaks, checking for blockages or malfunctioning components, and repairing or replacing traps as needed.