TURBOSAN POMPA PUMP

DAS Series Submersible Waste Water and Sewage Pumps

APPLICATIONS:

• Pumping of domestic and industrial sewage

• At sewage treatment plants

• Pumping of chemical and industrial waste water.

• Pumping of rain water

• All kinds of drainage and dewatering work.

• Pumping of difficult liquids of industrial processes.

FLUID TYPES:

• Unscreened sewage and other waste water types with high solids concentration.

• Water with sand content. Maximum grain size ( 20 – 30 mm). Liquid, sand ratio can be maximum % 6. For higher sand concentration preventive provisions must be taken against wear.

• Maximum allowed fluid temperature is 50°C

• Maximum allowed medium density is 1,2 gr/cm3, maximum allowed medium viscosity is 1,5 x 10-6 m2/s. Measures must be taken to lower these values.

• DAS series pumps can not be used for pumping flammable and

explosive fluids.

Pump Materials :

Pump component	Material
Motor casing – volute casing	Cast iron GG-20 (EN-JL 1030)
Shaft	AISI 420
Pump impeller	Cast iron GG-25 (EN-JL 1040)
Bolts – Nuts	Stainless steel
Mechanical seal	SIC/SIC – NBR
Cable	H07RN-f
Coating	Coal tar epoxy paint over Epoxy primer

TECHNICAL DETAILS:

SUBMERSIBLE ELECTRIC MOTOR Turbosan DEM type submersible electric motor operates with 3 phase 380 V AC (+/- % 5) power supply.

Insulation class of motors is F, protection class is IP 68. H class insulation availble upon request.

Motor Cooling : DEM type submersible motors cooled externally by surrounding medium. In order to have sufficient cooling motor must be submerged up to the top.

BEARINGS : Rotor is supported by means of two heavy duty ball bearings. Bearings are grease lubricated, no need for maintenance for 2 years of operation time.

SHAFT SEALING: Between motor and pumped fluid high quality (Silicon carbide – Silicon carbide) mechanical seal is used, seals operate in oil chamber. ( DIN 2450 / EN 12756)

STR-1 PROTECTION RELAY:

Special relay manufactured by Turbosan is very important part of submersible pumps and has to be fitted to the control system.

MOTOR OVER HEAT PROTECTION SYSTEM : Stator windings protected against over heat by 120ºC termistors. Over heat usually caused by dry operation of the pump, excessive start stop frequency, or faulty electrical connections in case of over heat, pump tripped by relay and will not operate.

WATER LEAKAGE WARNING SYSTEM:

Motor does not operate in case water leaks in to the motor.

PUMP IMPELLER:

• Single vane double angled non clogging impeller: These impellers have large solid passages, high efficiencies and they do not strain motor power at low discharge head values.

• Double vane impeller : For the discharge head values that can not attained with single vane impellers. They have smaller solid passages than single vane

impellers. In some cases water must be screened.

• Vortex type impeller : This type of impellers do not have closed channels. Impeller located deep inside the volute casing. Pumping action is generated by

vortex created within the fluid by rotation of the impeller. With this geometry they can tolerate large solids than other impeller types more specifically they tolerate fibrous materials in the pumped liquid. Disadvantage of this impeller type is lower efficiencies.