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ADVANTAGES:
Parpo series submersible pumps grinds large solids in the water
in to smaller pieces by cutters located in front of impeller
preventing pipe clogging.
• Reduced pipe and fitting installation cost
• Reduced flow rate and absorbed power results in lower
operation costs.
• Flow velocity within smaller diameter pipe is higher which
eliminates solid settlement and consequent clogging.
TECHNICAL DETAILS:
Parpo series pumps like other submersible pumps consists of
two main components : Motor and hydraulic group. They can
operate fully or partially submerged.
SUBMERSIBLE ELECTRIC MOTOR :Turbosan DEM type
submersible electric motor operates with 3 phase 380 V
( +/- % 5) power supply. Parpo 40 N-140 M is suitable for single
phase 220 V power supply. Insulation class of motors is F,
protection class is IP 68. Cooling : External cooling by surrounding
medium. Stator windings protected against over heating by 120
°C thermistors.
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
mechanical seal is used, seals operate in oil chamber. Water
leakage electrode in this oil chamber is for leakage warning.
MOTOR OVER HEAT PROTECTION SYSTEM : Stator windings
protected against over heat by 120 ºC termistors. Two thermistor
contacts are connected to cable and and must be connected to
the thermistor relay.
PUMP IMPELLER AND SHREDDER BLADE SYSTEM :
Shredder blade system which is made of high quality hardened
steel is located in front of the pump impeller. Stationary blade
has several sharp waved edges and catches which grab solids.
Rotating blade is fixed just in the center of impeller, it rotates
together with impeller and sharp edges shreds the solids grabbed
by stationary blade. Any solid has to pass through cutter blades
two times before reaching impeller. As a result solids reaches
impeller after being shredded in to smaller pieces. Pump impeller
is semi-open type, the clearance between impeller and suction
piece can be adjusted.
WATER LEAKAGE WARNING SYSTEM:
An electrode system is used which generates a warning signal
in case of water leakage caused by worn out mechanical seal
or any other reason. In order to have this system operational it
must be connected to the Turbosan STR-1 protection relay.
CABLE CONNECTION :
Parpo series pumps have 4x2,5 + 3x1,5 rubber coated, H07RNF
type cables with flexible cores. Cable entry to the terminal box
protected by rubber sleeves.
IMPORTANT NOTICE ABOUT PARPO SERIES PUMPS
• Submersible pump start-stop frequency should not be more
than 12 times per hour.
• If submersible pump will be stored for long period time
without operation, it must be operated for short period of
time every 20-25 days.
• Turbosan warraty is not valid if pump is not connected to
STR-1 protection relay.
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