DAYLIFF DD, Installation & Operating Manual

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2
DDG
3
FLOW RATE(m/hr)
0
20
25
40
10
15
30
35
0.5 1 1.5 2 2.5 3.5 3
DDG 1000
PUMP HEAD (m)
DDG 1000
5
PUMPS
The Dayliff DD pump range is specially designed for all small scale domestic
and commercial water supply uses. Model options are available as follows:
DDP: High specification peripheral pumps that features copper windings, a
high capacity motor and stainless steel housing inserts to ensure free impeller
movement. The pump body is manufactured from cast iron and the impeller
from brass.
DDC: Centrifugal non-self priming closed impeller pumps particularly suited
for water boosting and transfer applications. The pump body is cast iron and the
impeller stainless steel for DDC 158 and brass for DDC 170.
DDJ: Centrifugal jet type pumps that incorporate an integral ejector unit to
provide highly effective self priming performance. The pump body is made from
cast iron, the ejector from engineering plastic and impeller from brass.
DDS: Centrifugal single impeller non-self priming pump. The pump body,
backplate and impeller are made from 304 stainless steel.
DDG: Single stage centrifugal impeller self priming design. Materials of
construction are stainless steel for the pump body, shaft and back plate with the
impeller made from polypropylene.
MOTORS
Pumps are close-coupled to reliable TEFC electric motors designed for
continuous operation and are provided with a thermal cutout to protect against
electrical overload. They can be connected directly to the mains power supply
through a 10A fuse or MCB.