Centrifugal fan VRS series

Overview
The LTG VRS series medium-pressure centrifugal fans feature a welded spiral housing and a welded impeller with optimized inlet nozzle and cover plate. Backward-curved impeller blades provide good efficiency while keeping compact dimensions. Units are suitable for applications requiring discharge pressures up to approx. 4 300 Pa and air volumes up to 120 000 m³/h. Available with single-sided or double-sided suction, multiple drive options and a broad range of accessories.

Technical data (table)
Type | Impeller Length [mm] | Air Volume [m³/h] | Max stat. Pressure [Pa] | Degree of Efficiency [%]
VRS 450 | 450 | 16 000 | 4 200 | 85
VRS 500 | 450 | 21 000 | 4 200 | 85
VRS 560 | 450 | 25 000 | 4 200 | 85
VRS 630 | 450 | 32 000 | 4 300 | 85
VRS 710 | 450 | 40 000 | 4 300 | 85
VRS 800 | 450 | 50 000 | 4 300 | 85
VRS 900 | 450 | 65 000 | 4 300 | 85
VRS 1 000 | 450 | 80 000 | 4 300 | 85
VRS 1 120 | 450 | 100 000 | 4 300 | 85
VRS 1 250 | 450 | 120 000 | 4 300 | 85

Features

• Single-sided and double-sided suction
• Drive via V-belt or flat belt
• Four selectable housing positions
• For double-sided suction units, drive can be positioned left or right as required
• Special design options: corrosion protection, sandblasting, hot-dip galvanising, rubber coating, stainless steel

Specifications / Technical details

• Series: VRS series
• Construction: sturdy welded spiral housing
• Impeller: welded impeller with optimized inlet nozzle and cover plate; backward-curved impeller blades for good efficiency
• Discharge pressure: up to approx. 4 300 Pa depending on type
• Maximum efficiency: up to 85%
• Suction variants: single-sided and double-sided suction
• Drive: V-belt or flat belt; flexible drive position for double-sided suction units
• Housing positions: four possible positions
• Special designs available: corrosion protection, sandblasting, hot-dip galvanising, rubber coating, stainless steel
• Available types and key data:
  • VRS 450 — Impeller Length: 450 mm; Air Volume: 16 000 m³/h; Max stat. Pressure: 4 200 Pa; Efficiency: 85%
  • VRS 500 — Impeller Length: 450 mm; Air Volume: 21 000 m³/h; Max stat. Pressure: 4 200 Pa; Efficiency: 85%
  • VRS 560 — Impeller Length: 450 mm; Air Volume: 25 000 m³/h; Max stat. Pressure: 4 200 Pa; Efficiency: 85%
  • VRS 630 — Impeller Length: 450 mm; Air Volume: 32 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%
  • VRS 710 — Impeller Length: 450 mm; Air Volume: 40 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%
  • VRS 800 — Impeller Length: 450 mm; Air Volume: 50 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%
  • VRS 900 — Impeller Length: 450 mm; Air Volume: 65 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%
  • VRS 1 000 — Impeller Length: 450 mm; Air Volume: 80 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%
  • VRS 1 120 — Impeller Length: 450 mm; Air Volume: 100 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%
  • VRS 1 250 — Impeller Length: 450 mm; Air Volume: 120 000 m³/h; Max stat. Pressure: 4 300 Pa; Efficiency: 85%