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 The
Grundfos E-pump delivers tremendous pumping flexibility and
energy savings. Each pump automatically adjusts its speed to
meet a wide range of operating conditions. The E-pump provides
constant or variable flow, pressure and temperature for such
applications as heating, cooling and water supply.
They are also ideal for process operations where
a 0/4 - 20 MA, 0/2 -10 V, or 1-2 Khz signal is provided by a
sensor. A "PI" system controller and 5 V and 24 V
sensor power are also integrated to provide a "Total Pumping
System."
All Grundfos E-pumps are equipped with an operating
panel that provides easy monitoring of operating conditions
and offers simple control of basic functions like start/stop
and setpoint setting. The universal Grundfos R100 Remote Control
can be used with installation, commissioning, operation, service,
and fault finding for a number of Grundfos products, including
the Grundfos E-pumps. The R100 provides access to several extended
functions and unique possibilities for monitoring operating
conditions such as power consumption and actual pressure value.
The R100 has an intuitive, easy-to-use menu, making commissioning
and operation of the E-pumps extremely user-friendly.
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The unique Grundfos micro-frequency converter:
adjusts motor speed to meet application-specific demand
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Flexible "performance area" (rather
than fixed curve): simplifies pump selection & minimizes
inventory
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Consistent performance at optimal duty
points
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Energy savings resulting from automatically
adjusted motor speeds
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Easy installation & operation:
pump, motor, VFD and PI are all integrated into one compact
unit
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Lower RF and EMI emissions than conventional
variable-frequency drive motors
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Whisper-quiet operation
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A payback and IRR (internal rate of return):
PC program is available from Grundfos E-pump distributors.
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Reduced energy cost - Energy savings
range from 15%-45%
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Lower maintenance cost - Pressure
Regulator Valves (PRVs) require periodic adjustment and
maintenance. Variable speed systems do not. Pumps are not
subjected to full speeds when flow requirements are low,
a condition which causes pump wear and may require high
temperature dump valves to prevent seal damage.
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Quieter: Variable speed systems reduce
noise because pumps run quieter at slow speeds and PRV noise
is eliminated.
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Reliable: Advances in electronics have
made VFDs very reliable and rugged.
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Cost effective to buy and install:
Prices for VFD systems often match or are less than PRV
systems. Tank sizes are 5-10% the size of tanks required
for PRV systems, an important factor when ASME tanks are
required. Variable frequency drive systems do not require
time consuming PRV adjustments.
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Space saving: Reduced tank size, integrated
variable frequency drives, and reduced control panel size
save valuable space.
 Grundfos
E-Pump Brochure
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