ARI-ASTRA DC

Dynamic combination valve comprised of a volume flow regulator which can also be set externally, a differential pressure regulator and a modulating control valve – for maximum energy efficiency under changing conditions (with electric actuator – for variable valve positioning).

Maximum convenience with minimal energy consumption because the volume flow is optimally regulated (optimised flow and pump pressure):

• Perfect control of the system because regulation is fully modulating with full valve authority and maximum ΔT – regardless of any fluctuations in the differential pressure
• Maximum ΔT through dynamic, rapid response and increased system stability
• Optimal handling because the time to specify all components for hydraulic balancing is reduced to a minimum (only volume flow data required)
• Perfect plant management through high control performance in all parts of the system
• High flexibility because the installed system can be converted at any time
• Cost savings because no other control valves are required in the system (fewer control valves in total owing to combined 3-in-1 design)
• Rapid start-up because the system is automatically regulated
• Perfect control of the system (e.g. differential pressure can be measured)
• Increased convenience with energy savings for final consumers through high-precision temperature control
• Longer service life because of economized movements
• High valve authority through constant differential pressure across the modulating self-regulating unit
• High flexibility because the volume flow can also be set externally
• High precision through 20 – 40 mm valve stroke
• Precise presetting with continuous scale
• Standard measuring instrument connections for differential pressure