Volume flow controller VRX

Overview
The VRX mechanically automatic volume flow controllers regulate a constant volume flow in rectangular air ducts of Comfort Air Technology systems, maintaining the set airflow independent of upstream pressure. Suitable for ventilation and air-distribution applications requiring energy-free, reliable control.

Key features

• Volume flow control without external energy – mechanical operation, no wiring required
• Freely adjustable setpoints for maximum flexibility
• Insensitive to dust and environmental influences – maintenance-free with precise regulation
• Large control ratio Vmax:Vmin for wide operating range
• Cost-effective solution for balanced ventilation systems

Technical data (summary)

• Acoustic reference: LpA = 35 dB(A)
• Volume flow range: 250 - 12 000 m³/h
• Casing leakage: DIN EN 1751 Class C
• Dimensions (L x W x H in mm): 200 x 100-600 x 600
• Design / Options: housing version; galvanized steel; optional Silencer SDE

Technical specifications

• Product type: Mechanically automatic constant volume flow controller for rectangular ducts
• Function: Controls constant volume flow independent of upstream pressure
• Power: No external energy required (mechanical, no wiring)
• Adjustability: Freely adjustable volume flows
• Maintenance: Maintenance-free; insensitive to dust and environmental influences
• Acoustic rating: Data referenced for LpA = 35 dB(A)
• Volume flow range: 250 - 12 000 m³/h
• Casing leakage: DIN EN 1751 Class C
• Dimensions (L x W x H in mm): 200 x 100-600 x 600
• Materials / Options: Housing version; galvanized steel; optional Silencer SDE
• Benefits: Cost-effective; maximum flexibility; large control ratio