Centrifugal exhaust fan NM series

Product overview
The LTG exhaust gas centrifugal fans type NM..SO are single-inlet, directly driven centrifugal fans designed for conveying hot gases. The units feature a welded housing and are rotatable up to and including size 500. Suction and discharge nozzles are round and smooth up to size 280; from size 315 the suction nozzle is flanged and the discharge nozzle is rectangular. All fans are fitted with aluminium cooling blades and are suitable for conveying temperatures of up to 200 °C. Surface protection is provided by a heat-resistant aluminium coating.

Key features

• Optimum aerodynamic properties
• Very smooth running
• Impeller dynamically balanced together with hub and shaft
• Low operating noise
• Reliable construction
• High manufacturing accuracy

Technical data (selected types)

• NM 160 SSO | Air Volume: 1 200 m³/h | Total Pressure Rise: 290 Pa (at 200 °C) / 540 Pa (at 20 °C) | Motor Output: 0,55 kW
• NM 200 (80) SO | Air Volume: 1 800 m³/h | Total Pressure Rise: 350 Pa (at 200 °C) / 570 Pa (at 20 °C) | Motor Output: 0,55 kW
• NM 224 (80) SO | Air Volume: 2 500 m³/h | Total Pressure Rise: 440 Pa (at 200 °C) / 710 Pa (at 20 °C) | Motor Output: 1,1 kW
• NM 280 SSO | Air Volume: 3 500 m³/h | Total Pressure Rise: 290 Pa (at 200 °C) / 470 Pa (at 20 °C) | Motor Output: 0,75 kW
• NM 315 SSO | Air Volume: 4 000 m³/h | Total Pressure Rise: 350 Pa (at 200 °C) / 570 Pa (at 20 °C) | Motor Output: 1,1 kW
• NM 355 (80) SO | Air Volume: 5 000 m³/h | Total Pressure Rise: 280 Pa (at 200 °C) / 450 Pa (at 20 °C) | Motor Output: 1,1 kW
• NM 400 (80) SO | Air Volume: 7 500 m³/h | Total Pressure Rise: 350 Pa (at 200 °C) / 570 Pa (at 20 °C) | Motor Output: 2,2 kW
• NM 400 SO | Air Volume: 7 500 m³/h | Total Pressure Rise: 460 Pa (at 200 °C) / 750 Pa (at 20 °C) | Motor Output: 4 kW
• NM 450 SSO | Air Volume: 9 000 m³/h | Total Pressure Rise: 290 Pa (at 200 °C) / 470 Pa (at 20 °C) | Motor Output: 2,2 kW
• NM 500 SSO | Air Volume: 12 000 m³/h | Total Pressure Rise: 360 Pa (at 200 °C) / 590 Pa (at 20 °C) | Motor Output: 4 kW
• NM 560 SO | Air Volume: 15 000 m³/h | Total Pressure Rise: 400 Pa (at 200 °C) / 650 Pa (at 20 °C) | Motor Output: 4 kW
• NM 630 (80) SO | Air Volume: 18 000 m³/h | Total Pressure Rise: 360 Pa (at 200 °C) / 590 Pa (at 20 °C) | Motor Output: 7,5 kW

Specifications

• Type designation: NM..SO (exhaust gas centrifugal fans)
• Single-inlet centrifugal fan, directly driven
• Welded housing construction
• Rotatable up to and including size 500
• Suction and discharge nozzle geometry: round and smooth up to size 280; from size 315 suction nozzle flanged and discharge nozzle rectangular
• Impeller with aluminium cooling blades
• Suitable for conveying temperatures up to 200 °C
• Surface protection: heat-resistant aluminium coating
• Balanced impeller together with hub and shaft for smooth running
• Available range covers air volumes from approx. 1 200 m³/h up to 18 000 m³/h and motor outputs from 0,55 kW up to 7,5 kW (see technical data)