ARI-ASTRA® D

Automatic volume flow limiter as an intermediate flange fitting

Description

eClass-No.:	37010905
Application:	Chemical Industry, processing industry, plant manufacturing
Medium:	Steam, aggressive gases, vapours and liquids

Dynamic volume flow limiter – for automatic hydraulic balancing in heating, cold water, cooling and air conditioning systems.

Maximum energy saving because the volume flow is limited independently of the differential pressure across the valve – through integrated, automatic unit with replaceable volume flow orifice plate and internal diaphragm (avoids oversupply)
Optimal hydraulic balancing because the volume flow is continuously limited
Cost and energy savings through wafer flange (particularly important when existing systems are refurbished)
Lower operating costs and accurate settings through defined limitation of the volume flow (no manual readjustment and no complicated start-up because the units are adjusted at the factory)
Precise control of individual consumers by the volume flow limiter
Standard measuring instrument connections for differential pressure

Technical data

ARI-Armaturen volume flow limiter ASTRA® D 23.021 DN80, PN25, EN-JS1030
Maintenance-free dynamically regulating volume flow limiter in intermediate flange design. Housing made of spheroidal graphite cast iron EN JS1030 with basic primer. Maintenance-free, resistant to contamination differential pressure measurement system with integrated pressure measurement connections for connecting pressure measurement computers.

Control range inserts: 13-600kPa.

Control inserts made of 1.4301, spring made of 1.4401, membrane made of HNBR, O-rings made of EPDM, fully insulatable according to the Building Energy Act – GEG, PCB-free.

Length: 170mm.
Medium temperature: -10 – +110°C.
Nominal pressure: PN25.
Nominal size: DN80.
Weight: 4.8kg.
Volume flow range: 3.8-45 m³/h.
Article code: 230210080G1.