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 FIGURE 2-20
Wet Rotor Circulating
Pumps: Cartridge-
Type (left) and
Magnetic Drive-Type
(right).
TABLE 2-1: Pump Application Guide
Typical Choice
Application
Bronze or stainless steel,
Potable water, under
can be wet or dry rotor,
pressure
usually high flow, low head
Can be cast iron or steel,
Water, no pressure
can be wet or dry rotor,
i.e. drainback
usually low flow, high head
collector loop
Usually cast iron, can be
Non freezing liquid,
wet or dry rotor, usually
under pressure, (i.e.
high flow, low head
closed-loop collector
loop
OPERATION
24
2.7 COMPONENT OPERATION
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