Centrifugal fan PK 352

ventilationstainless steelindustrial

Presentation The ZIEHL-ABEGG process air fans are used in industrial machinery and production systems across many sectors. They provide precise air transport for ventilation, drying and cooling applications. Explosion-proof versions with ATEX certification are available for environments containing flammable gases, vapours or dusts.

Product features Centrifugal radial fans with scroll (spiral) housing, single-sided suction, direct drive. Maximum transport medium temperature: 400 °C.

Properties & special features

• High-performance impeller with backward-curved blades, dynamically balanced
• Rugged welded scroll housing made of coated sheet steel
• RAL 7032 or pickled and passivated stainless steel
• Drive motor as standard IEC motor in IMB3 & IMB5 configurations and other common versions
• Volume flow rate: 22,000–100,000 m³/h
• Available pressure: 2,600–20,000 Pa

Motor concepts

• IEC standard motor versions: IMB3 or IMB5
• Optional special motors: ISO H or motors with stainless steel shafts

Explosion-proof (ATEX) version — features

• Antistatic surface protection by powder coating (e.g. RAL9005 and RAL7035)
• Zone separation possible with an appropriate radial shaft seal
• Temperature class T4 / T125 °C
• Equipment group: IIB+H2
• Internal rotor motor (AC)
• EPL: Gb / Gc / Db / Dc
• Application zones: Zone 1 / 2 / 21 / 22
• Motor starting protection types: Ex d / Ex de / Ex eb / Ex ec / Ex tb / Ex tc
• Fan starting protection type: Ex h (constructional safety "c")
• Ambient temperature range (ATEX): -20 to +40/60 °C
• Certificates: ATEX (explosion-proof versions available)

Technical specifications

• Type: Centrifugal scroll (spiral) radial fan, single-sided suction, direct drive
• Maximum transport medium temperature: 400 °C
• Volume flow rate: 22,000–100,000 m³/h
• Available pressure: 2,600–20,000 Pa
• Impeller: Backward-curved blades, dynamically balanced
• Housing materials: Coated sheet steel (e.g. RAL7032) or pickled and passivated stainless steel
• Compatible motors: IEC IMB3 / IMB5; optional ISO H, stainless steel shaft motors
• Explosion-proof versions: ATEX certification, temperature classes T4/T125 °C, EPL Gb/Gc/Db/Dc, equipment group IIB+H2
• Ambient temperature (ATEX): -20 °C to +40/60 °C