DAC-S and DAC-Y Submersible / Immersible Pumps

DESCRIPTION

DAC-S and DAC-Y type submersible/immersible pumps have been designed for reliable pumping of wastewater, sewage and sludge containing solids and fibrous material. They are available with 4 different types of impeller - single channel, double channel, vortex and screw type impellers. They can operate in medium with temperature upto 40^oC.

Special heat dissipating exchangers are used in case of medium with higher temperatures.

Special precaution should be taken for pumping medium of densities higher than 1.2 g/cm³ and viscocity higher than 1.5x10^-6 m²/s.

DAC-S : This type is suitable for operation under submersible conditions. The motor is water-cooled and is cooled by the surrounding pumped medium.

DAC-Y : This type is suitable for submersible/immersible operation. That is it can operate below liquid level, partially submerged or dry. The DAC-Y type constitutes of oil cooled motors, which enable the pump to operate in dry conditions. This oil-cooling feature eliminates problems of blockage associated with liquid cooling system.

APPLICATION

• Pumping of communal and industrial wastewater and sewage.

• At sewage treatment plant.

• Pumping of chemical and industrial wastewater.

• Pumping of rain water.

• All kids of drainage and dewatering work.

• Pumping of difficult liquids of industrial processes.

FEATURES

• Motots in3 phase, 400/690V (230/400V on request), 50 or 60 Hz frequencies, F class insulation and IP68 protection class.

• Pumps supported by heavy-duty ball bearings. In DAC-Y the bearings operate in oil and in DAC-S the bearings operate in grease.

• Heavy-duty double mechanical seals with silicon carbide/silicon carbide are employed. Motors below 15 kW are fitted with a single mechanical seal and two oil seals.

• Thermal protection (thermistors) incorporated in the motor windings and water leakage probe (electrode) in the oil chamber.

• Pumps are painted with red synthetic undercoat and coal tar epoxy over evokrom primer.

• Pumps are tested to ISO 2858 class C.

MATERIAL*

-Casign   : Cast iron                    -Shaft                          :Stainless steel

-Impeller : Cast iron                    -Studs, bolts and nuts   :Stainless steel

^{*Other special material such as ductile iron, cast steel, bronze, stainless steel are available on request.}

INSTALLATION FORMS

SUBMERSIBLE PUMP Guide rail installation	IMMERSIBLE PUMP Dry well installation	SUBMERSIBLE PUMP Free-standing
Pump mounted in sump includes fixed discharge elbow. Easy installation or removal of pump from sump .Pump automatically couples to the discharge elbow     as  it is lowered into the sump.	Pump mounted in dry well. Pump stands on concrete, steel or cast iran base frame. Connection to wet well is through suction bend.	Pump mounted in sump. standing on its base frame.

DIMENSIONS

   PERFORMANCE CHART