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• The pump should be protected from moisture, frost and
mechanical damage due to impact during transport and
interim storage.
• The device must not be exposed to temperatures outside the
range of -10 °C to +60 °C.
4 Intended use
The circulation pumps in the E.../1-5 series are designed for
warm water heating systems and similar systems with con-
stantly changing volume flows. Approved fluids are heating
water in accordance with VDI 2035, water/glycol mixture at a
mixing ratio of max. 30 % of glycol. If glycol is added, the deliv-
ery data of the pump must be corrected according to the higher
viscosity, depending on the percentage mixing ratio.
5 Product information
5.1
Type key
Example: E 25/1-5-130
E
25
1-5
130
7
Electronic asynchronous pump
Threaded connection DN 25 (Rp 1)
1 = Minimum delivery head in m
(adjustable down to 1 m)
5 = Maximum delivery head in m
at Q = 0 m³/h
Length of pump housing 130 mm
WILO SE 05/2011
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