Davey DT37G Submersible Grinder Pump 415V
Submersible pump consisting of a solids handling grinder inlet with a high head open impeller to pump waste water containing soft solids in suspension.
APPLICATIONS
• Grey & Black Water Pumping
• Sump Emptying
• Septic effluent & sewage disposal
• Pumping of waste water with soft
solids in suspension
DESIGN FEATURES
PUMP
Heavy duty shredding and grinding ring
at inlet.
Centrifugal design, open impeller.
Double Mechanical shaft seal in oil bath.
Hard faced Silicon Carbide / Ceramic
seal on pump side.
Sand slinger lip seal for added
protection.
Oring casing sealing.
Corrosive resistant stainless steel and
quality heavy duty powder coated cast
iron pump parts.
Seal sensor leads fitted for easy
connection to a protection relay to
enable timely repairs prior to motor
damage. Not fitted to D75G/GA or
DT08G models.
MOTOR
2 pole, 2900rpm 50Hz 240 volt single
phase or 415 volt three phase.
Submersible with IPx8 enclosure.
10 metre HO7RN-F oil resistant power
lead and seal sensor lead fitted with
bared wire lead ends for easy
connection to power supply
terminations.
Class E insulation.
Protected against both high operating
temperatures and high current by a built
in automatically resetting thermal
overload.
OPERATING LIMITS
Capacities 290 lpm
Head to 38m
Max. submergence 25m
Max. operating temperature 50o
C
Suitable Fluids
Sewage or “Grey Water” of neutral
pH containing up to 20% soft
organic solids (some wear should be
expected while pumping hard solids
in suspension).
BENEFITS
Able to pump soft organic solids,
sanitary products, thin rubber
products and even some textiles in
suspension, by shredding to a
slurry
• Open impeller prevents blockage
of the pump by small solids in the
slurry
• High heads and small solids allow
connection to small discharge
pipe systems, especially suited to
pumping waste water to pressure
sewer mains
• Silent operation
• Quick and easy installation
• Hose tail supplied with every
pump
• Low maintenance
• Fully repairable
• Mounting feet with rubber
cushions fitted for a firm and
stable positioning during
installation and operation for
D75G/GA, DT08G, D120G/A,
D150G/A, DT12G & DT15G.
• Adaptable to slide rails
ACCESSORIES
These optional accessories are available:
• Slide rail kit – P/No SR50
• Seal Sensor relay, allows connection
to contactor warning system – Part
No. 49076
• Auto float switches are fitted to
D75GA, D120GA & D150GA models
• Separate automatic control panels
available for single or multiple pump
installations.
MATERIALS OF CONSTRUCTION
Impeller : Cast iron – FC200
Shredding ring : High Chromium steel
Grinding ring : High Chromium steel
Pump casing : Cast iron – FC200
Outlet : Cast iron – FC200
Shaft seal – pump side – Silicon carbide/ceramic
– motor side – Carbon/ceramic. Mechanical Seals in captive oil bath and oil seal
Shaft seal elastomer : Nitrile rubber
Pump shaft : 304 stainless steel
Orings : Nitrile rubber
Motor shell : 304 stainless steel
Handle : 304 stainless steel
Fasteners : 304 stainless steel
Float & power supply leads : HO7RN-F oil resistant
Pump Weight: 52Kg
ELECTRICAL DATA
Electrical lead: 10m
Phase: Three
Volts: 380-415
kW (nameplate): 3.7
Amps – FL: 8.5
Insulation E class
INSTALLATION & PRIMING
Use a rope to position and retrieve the pump. Do not lower or retrieve
the pump using the power lead as this may damage the cable entry
seals, causing water leaks and unsafe operation.
Do not use this product for recirculating or filtering swimming pools,
spas, etc. While these pumps are built to high safety standards, they
are not approved for installations where people will be in the water
while they are operating.
Do not pump abrasive materials. Sand and grit in the water being
pumped will accelerate wear, causing shortened pump life.
Make room for the float switch to operate. Automatic models have a
float switch to turn them on when the water level rises and turn them
off again when it has been pumped down to the safe operating level of
the pump. If the float switch is not free to rise and fall, correct pump
operation may not be possible.
Don’t run your pump dry. Non-automatic models must be switched off
manually or by way of an external float/level switch when the water
level is reduced to the top of the pump housing.
