All Dolphin Amp Master Pumps are manufactured using one impeller
designed to operate on each motor as close to 100% efficiency as
possible. For this reason we do NOT offer the gimmick of multiple
impellers or smaller impellers on the same motor running at poor
Flow rates on all Amp Master Pumps may be dialed
back with a discharge ball valve to any desired flow rate with no harm
to the pump. Amperage rate will drop as flow rate is reduced to your
desired rate. The most efficient way to plum any system is to install a
ball valve at the discharge union then a tee fitting plumbing a closed
loop manifold with return reducing tees wherever you want a flow return.
A closed loop can be any shape or design as long as both ends return to
the tee at the ball valve. This ensures even pressure through your
All Dolphin Pumps have pre-filter priming pots
available for installations where water is being drawn up from source or
when pre filtration of debris is needed.
Diamond Amp Master pumps come in the following models:
DIAMOND AMP MASTER 4750
Dimensions 12” x 6 1/4” x 81/4”
Near silent, cool running
1/15 HP 1725 RPM
Circulates 4750 GPH without heat transfer
Factory warranty 2-3 years (dependant on seal selection)
Suggested use: 120 gallon and over
Supplied with 1.5” super seal unions and anti-vibration pump pad
FRINGE TECH SEALS:
1 – FRESHWATER SEAL. Over double the work life expectancy of other
style freshwater seals. 10-year factory service guarantee.
Type 2 – MARINE. Designed for pumping clean non-abrasive marine water. 10-year factory service guarantee.
3 – MARINE REEF & OTHER CORROSIVE WATER WITH LIFETIME FACTORY
SERVICE GUARANTEE. Designed for pumping water containing abrasive sand
and minerals. A seal designed to outlast the motor.
Type 4 –
FRESH, MARINE & ANY ABRASIVE WATER WITH LIFETIME FACTORY SERVICE
GUARANTEE. The leader in seal technology. A non-fail, lifetime seal.
Offers all the advantages of seal-less options without all the
disadvantages. Type 4 true diamond seal is super slippery, minimal
friction and energy consumption. Recommended for extreme abrasive
environments and where the pump will cycle on and off.
recommends no less than type 3 abrasive proof seals for all reef and
coral containing marine aquariums since these marine environments are
all considered abrasive. The type 3 seals are designed to handle this
environment with the reliability of a magnetic drive pump without all
the drawbacks, such as heat transfer, noise, and energy consumption. All
of our type 3 and diamond type 4 sealed amp master pumps include a
3-year factory warranty plus a free lifetime service guarantee. The
ultimate type 4 diamond abrasive proof seal provides a virtually
bulletproof pump against any abrasives, while at the same time it draws
the lowest electrical current. For freshwater use the new fringe tech
series type 1 seal design and surfaces are designed to provide a much
longer service life than any other fresh water pump. When adapted to 2”
plumbing they will also attain higher head pressures and flow rates than
any of our low rpm 2’ pumps.