SynTherm
GEM Venturi Steam traps
FromSynTherm
GEM traps have the revolutionary venturi orifice design, which enables them to perform the job of a steam trap without the need of moving parts. This means that GEM traps never fail. Like all orifice traps, the GEM steam traps used in the GEM Condensate Return System work by using the difference in density between steam and condensate. Condensate is 1.000 times denser than steam and so passes through an orifice very much slower than steam. Steam, with no condensate present, will typically pass through an orifice at velocities approaching Mach 1! So slow moving condensate squeezes out low density steam as it approaches the orifice. The high density, slow moving condensate is then preferentially discharged through the orifice, trapping the low density steam behind it.