Pall Oenoflow XL-5A (crossflow microfiltration) System for Rigo Winery

Oenoflow XL-A Series Filtration System

General Characteristics

Manufacturer: Pall Corporation

Client: Rigo Impeks Winery, Gevgelija

Application: Provides single-stage filtration without the need for filter aids such as diatomaceous earth (DE) or centrifugation, with minimal impact on the organoleptic properties (color, aroma, taste) of the wine.

Technical Specifications – Model XL-5A

• Number of modules: 5

• Filter area: 107.5 m²

• Typical flow rate: 50–75 hl/h (hectoliters per hour), equivalent to approx. 5,000–7,500 liters/hour, depending on wine characteristics and pre-treatment.

• Frame dimensions (empty – without liquid):

  • Length: 3.35 m

  • Width: 1.60 m

  • Height: 2.45 m

• Weight (empty): ~1880 kg

Construction Materials

• Membranes: PVDF (polyvinylidene fluoride) – resistant, chemically and mechanically stable.

• Module housing: Transparent polysulfone, with sealing elements made of EPDM or similar material.

• Metal components in contact with wine/liquid: Stainless steel (AISI 304).

Operating Conditions and Benefits

• Operating pressure range: Inlet pressure from 0.5 to 3.5 bar.

• Filtration temperature: –4 °C to +25 °C; maximum cleaning temperature up to 65 °C.

• Automated control: PLC and touch-screen interface, automatic back-pulse cleaning, automatic chemical dosing, and integrated operating and cleaning programs.