Biral AD 401 [25/92] Characteristics intended use

Biral AD 401 [25/92] Characteristics intended use
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25
The pump must not be used
for feeding fire-risk media such as
diesel oil and combustibles.
Pumps of Type A.. (heating systems)
and A...KW (air-conditioning systems)
should not be used in the vicinity of foods.
3. Characteristics, intended use
Biral circulation pumps in series
A 12, A 13, A 14, A 15, A 16, A 401, A 500, AD 401
AW 15, AW 16, AW 401
A 12 KW, A 13 KW, A 14 KW, A15 KW, A 16 KW, A 401 KW, A 500 KW
AD 401 KW
are used for pumping liquids
in closed circulation systems
In heating systems: Series A…
In cooling, air-conditioning and refrigerating systems:
Series A…KW
In drinking water systems: Series AW
All types are suitable for use in systems with
Variable feed flows (in controlled operation)
Constant feed flows
(with optimum adjustment options for the operating point)
External speed specification
3.1 Requirements of the conveying medium
Pure, thin, non-explosive medium
No solid or fibrous elements
or admixture of mineral oils
Additional requirements for heating systems
As well as cooling, air-conditioning and refrigeration systems:
Heating water of normal water quality (E.g. VDI 2035)
Water/glycol mix with a maximum 50% proportion of glycol.
Additional requirements for drinking water systems:
Permissible water hardness: max. 35 °fH (20 °dH)
(Water temperature below 65 °C)
max. 25 °fH (14 °dH)
(Water temperature below 85 °C)
3.2 Operating temperature/operating pressure
Permissible temperature for medium:
Series A…
(heating systems) +15 °C to 95 °C, , for short periods 110 °C
Series A…KW
(cooling, air-conditioning and refrigeration systems)
–10 °C to 95 °C
Series AW…
(drinking water systems) +15 °C to 85 °C
Permissible operating pressure: max. 10 bar
Ambient temperature: max. 40 °C
Other details, see chapter 11

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