Volume flow controller VRE

Product overview
The round VRE volume flow regulators provide continuous and variable control of air volume flow; full shut-off is also possible. Depending on the configuration, units are suitable for polluted or non-polluted air. Actuation and control require external energy, available as electric or pneumatic drives. Push-in ends with insertion bead for lip seal allow connection to air ducts to DIN EN 1506 or EN 13180, or to flanges to DIN 24154 series 1 from nominal size DN 500.

Versions / Features

• Steel – galvanized, coated, stainless steel
• PPS – for aggressive media, all components in the air flow made of plastic
• Attachment of various controller makes/components possible
• Can be combined with spring-return or high-speed drives
• Corrosion-resistant versions available
• Measuring principle: dynamic (VRE) or static (VRE-s)

Technical data

• LpA: 35 dB(A)
• Volume flow ranges: entries shown on page include "19 - approx. 11" and "200 m³/h"
• Differential pressure range: up to 1000 Pa
• Casing leakage according to DIN EN 1751: Class A (standard), Class C optional
• Airtight shut-off according to DIN EN 1751: Class 4 (DN 100 and 125: Class 3)
• Sizes [mm]: Ø 100 - 600
• Actuation/control: external energy (electric or pneumatic)
• Connections: push-in ends with insertion bead for lip seal; suitable for ducts to DIN EN 1506 or EN 13180 and flanges to DIN 24154 series 1 from DN 500

Design / Options

• Galvanized steel
• Coated
• Stainless steel
• PPS (plastic)
• Silencer SDE (optional)
• Measuring principle: dynamic (for non-polluted air) or static (for polluted air) (optional)
• Various housing versions available

Characteristics / technical specifications

• LpA: 35 dB(A)
• Volume flow ranges and examples as shown above
• Differential pressure range up to 1000 Pa
• Casing leakage: DIN EN 1751 Class A standard, Class C optional
• Airtight shut-off: DIN EN 1751 Class 4 (DN 100 + 125: Class 3)
• Available sizes: Ø 100 - 600 mm
• Materials: galvanized steel, coated, stainless steel, PPS
• Optional silencer: SDE
• Measuring principles: dynamic (VRE) for non-polluted air, static (VRE-s) for polluted air
• Actuation/control: electric or pneumatic external drives
• Connections: push-in ends with insertion bead for lip seal; suitable for ducts and flanges per the standards listed