Liquid & steam Ejectors - 248 | Valfonta

Valfonta 248 Steam/Water Ejector

The Valfonta 248 is a jet pump type ejector designed for pumping or mixing liquids, slurries, and solids using water or steam as the motive medium. Operation is based on a nozzle that generates a vacuum zone, drawing in the secondary medium and discharging the mixture. The unit contains no moving parts and does not require an actuator.

Technical Specifications

• Sizes: DN15–DN125.
• Connections: EN/DIN PN16 flanges; other standards available upon application review.
• Body pressure classes: PN16, PN25.
• Catalogue operating limit: 16 bar up to 200 °C.
• Mixture flow rate: approx. 1,200–72,000 l/h, calculated with 4 bar motive steam.
• Body materials: EN-GJS-400-18-LT / GGG40.3, bronze RG10, ASTM A351 CF3M, optionally WCB.
• Nozzle: bronze RG10, ASTM A351 CF3M, or Monel.

Selection and Operating Conditions

Selection is based on motive pressure, required suction, discharge head, mixture density, and solids content. For submerged installation, catalogue data indicates suction up to 2 m with cold water and, with 5 barg steam, discharge head up to 38 m. Non-submerged configurations allow suction lifts up to 6.5 m and discharge heads of 5–12 m, depending on steam pressure.

Applications

Suitable for chemical processing, pulp and paper, soap manufacturing, tanneries, breweries, sugar plants, dye works, mining, bilge pumping on ships, pump priming, water treatment, and dosing of solids such as cement or salts into solution.

Sealing and Maintenance

Not intended as an isolation or control valve; no seat leakage class applies. Critical sealing points are flanged joints and gaskets, which must be selected according to temperature, pressure, and chemical compatibility.

Certifications

Supplier documentation references PED 2014/68/EU, ATEX 2014/34/EU, and ISO 9001:2015 for the Valfonta product range. Scope and applicability should be confirmed during procurement.