The Valfonta 252 steam ejector is a steam jet injector designed to heat liquids by direct injection. It is installed submerged inside the tank and uses the energy of the steam to draw in, mix, and heat the process fluid.
Its hydrodynamic design creates strong turbulence that causes constant recirculation within the tank, ensuring a homogeneous mixture and thermal uniformity throughout the volume of liquid, preventing cold spots. As it has no moving parts, it offers silent operation, no vibrations, and zero maintenance, making it ideal for industrial washing, pasteurization, brewing, and chemical processes.
Heating capacity: Available in 8 sizes covering a performance range from 50,000 to 1,400,000 Cal/hour (kcal/h).
Pressure and temperature: PN16 design, suitable for operating at a maximum pressure of 16 barg and temperatures up to 200°C.
Body materials: Versatility to adapt to the aggressiveness of the medium:
- Ductile Iron (GGG40.3) - Standard.
- Bronze (RG10).
- Stainless Steel (A351 CF3M).
- Bronze (RG10) - Standard.
- Stainless Steel (CF3M).
- Monel (for high chemical resistance).
The equipment operates through the Venturi Effect applied to thermodynamics:
- Injection: Steam is introduced at pressure through the rear inlet of the reheater.
- Suction: As it passes through the nozzle at high speed, the steam creates a vacuum that draws in the surrounding liquid from the tank through the side holes of the body.
- Mixing and heating: Inside the diffuser, the steam gives up its latent heat to the drawn-in liquid, condensing and raising the temperature of the fluid.
- Discharge and agitation: The hot mixture is expelled at high speed, generating convection currents that stir the entire contents of the tank.
For optimal thermal performance and quiet operation:
- Position: Install submerged near the bottom of the tank, oriented horizontally to promote circulation.
- Steam piping: It is recommended that the diameter of the supply pipe be greater than the nominal passage of the reheater if the distances are long.
- Air intake: According to the recommended installation diagram, it is advised to install an air inlet with a valve on the steam downpipe (outside the liquid). This allows the entry of small amounts of air to dampen the noise caused by the collapse of steam bubbles (condensation shock), ensuring smoother operation.
