Liquid & Steam Injectors - 252 | Valfonta

Valfonta 252 – Steam Injector for Liquid Heating

The Valfonta 252 is a steam injector/reheater designed for direct injection of saturated steam into tanks or liquid baths. Steam enters through the nozzle, generating suction via the Venturi effect, which draws liquid through body openings and mixes it with the steam. This process induces circulation and uniform temperature increase within the vessel.

Key Technical Data

• Sizes: DN20–DN80.
• Connection: Flanged EN/DIN PN16.
• Body rating: PN16.
• Max operating pressure: 16 bar.
• Max temperature: 200 °C.
• Thermal capacity: 50,000–1,400,000 kcal/h.
• Sizing basis: saturated steam at 3 bar.
• Body materials: EN-GJS-400-18-LT / GGG40.3, bronze RG10, ASTM A351 CF3M.
• Nozzle materials: bronze RG10, ASTM A351 CF3M, or Monel.

Typical Applications

Used for heating water or process liquids in wash tanks, barrels, drums, process baths, and mixing vessels. Common in breweries, sugar plants, laundries, chemical installations, and piping systems requiring local heating or freeze protection.

Selection Criteria

Size selection is not based solely on connection diameter. Required data:

• Available steam pressure and quality
• Required thermal load
• Tank volume and desired heating time
• Initial and final liquid temperature
• Material chemical compatibility
• Steam and recirculation piping length/diameter

For long piping runs, technical documentation recommends pipe diameters larger than the injector’s internal diameter.

Maintenance and Operational Limits

No moving parts or actuators. Maintenance focuses on nozzle cleanliness, scale deposits, flange sealing, and proper steam line drainage. Not suitable as an isolation or control valve; no internal leakage class.

Certifications

References: PED 2014/68/EU, ATEX 2014/34/EU, ISO 9001:2015. Applicability to model 252 must be confirmed at quotation stage, as certification scope and validity may vary by product and date.