DAB EVOSTA 2 - Technical Specifications and Management; 5. Applications; 6. Technical Data

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5. APPLICATIONS
EVOSTA2, EVOSTA2d series circulators allow integrated adjustment of the differential pressure which
enables the circulator performance to be adapted to the actual requirements of the system. This determines
considerable energy saving, a greater possibility of control of the system, and reduced noise.
EVOSTA2, EVOSTA2d circulators are designed for the circulation of:
– water in heating and conditioning systems.
– water in industrial water circuits.
– domestic water only for the versions with stainless steel pump body.
EVOSTA2, EVOSTA2d circulators are self-protected against:
– Overloads
– Lack of phase
– Excess temperature
– Over-voltage and under-voltage
6. TECHNICAL DATA
Supply voltage
110-127V (+/-10%), 60 Hz
Absorbed power
See electrical data plate
Maximum current
See electrical data plate
Grade of protection
IPX5
Protection class
F
TF Class
TF 110
Motor protector
No external motor protector is needed
Maximum environment temperature
104 ºF
Liquid temperature
14 ºF ÷ 230 ºF
Flow rate
See Table3
Head
See Table3
Maximum working pressure
1.0 Mpa – 10 bar
Minimum working pressure
0.1 Mpa – 1 bar
Lpa [dB(A)]
≤ 43
Table 2: Technical data
Designation index
(example)
EVOSTA
2
70/
130
Series name
2 = without display
2d = with display
Maximum head (feet)
Centre distance (inches))
EVOSTA2, EVOSTA2d
Hmax (ft)
Qmax (gpm)
EVOSTA2 110-127V 60Hz
18
16
EVOSTA2D 110-127V 60Hz
18
16
Table 3: Maximum head (Hmax) and maximum flow rate (Qmax) of EVOSTA2, EVOSTA2d circulators