Technical Data | 3
Hidrostal AG 15 / 49
3 Technical Data
3.1 Intended purpose
No potentially explosive atmosphere
WARNING
Potentially explosive atmospheres.
Risk of fatal injury!
• Potentially explosive atmospheres in the pump interior or the ambient
environment are NOT permissible.
Permissible media The pump is exclusively intended for pumping liquids and viscous, non-
combustible media.
If extremely abrasive or aggressive media are circulated, the pump must be
designed in resistant material.
Pumps of the types A2QR2, A2QR4, A2QS2, A2QS4, A2QE4, BE2, and
BK3 can be operated when they are immersed or when they are
permanently outside the liquid. The types A2QE2, BN2, and BN3 must
always be immersed during operation (exception see chapter Pumping the
sump dry [▶28]).
3.2 General information
NOTE
For contract-related technical data (dimensions, weights, performance,
connected loads, etc.) refer to enclosed delivery drawings and data sheets,
see chapter Appendix [▶49].
3.3 Operating conditions
Temperature
NOTICE
Frozen medium inside the pump.
Risk of failure of the pump housing!
• Make sure that the medium inside the pump and the connected hose
lines does not freeze.
• It is particularly important to make sure that the volume behind the
impeller is drained on pumps that are subject to frost (e.g. by blowing out
with compressed air).
Declaration Value
Temperature of medium max. 40°C
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