Impulse Design

Impulse traps work on the difference on dynamic response to velocity change in flow of compressible and incompressible fluids. It controls the discharge with a one moving part, a metal circular piston, with a sensing orifice tapped down the middle. This sensing orifice causes great losses of live steam (5% of published capacity) when loads are low or in superheat conditions.

Pressure Ranges

  • 150-1500 psig
  • 300-2500 psig
  • 300-4500 psig

Size Ranges

  • 1/2"
  • 3/4"
  • 1"
  • 1 1/2"
  • 2"


Main Drain Drip Legs Main Drain Drip Legs