MQ series
PREMIUM GRADE
SUBMERSIBLE SEWAGE PUMPS
SERIES MQ
The MQ-series of the TSURUMI AVANT brand adds an IE3 premium efficiency motor to the premium grade of submersible sewage pumps that Tsurumi makes. With this new series, overall efficiency and energy-savings have been taken to new heights by pursuing greater efficiency in both the pump and motor.
Moreover, to ensure users get what they are looking for, the MQ-series offers 5 types of impellers (Open Channel, Chopper, Vortex, Grinder and High Head) and super wide ranges of specifications featuring 50 to 500 mm discharge bore diameters and 1.1 to 250 kW motor output specifications. Plus, pump installation can be chosen between a WET version that submerges the pump in water or a DRY version that installs the pump indoors or outside the tank using the original closed loop cooling system with internal recirculation.
Furthermore, MQ-series pumps accordance with IECEx explosion-proof specifications, and can be used in dry pits and other sites.
Characteristics
- Cast iron structure (stainless steel on request)
- Class H electric motor from 1.1 kW to 250 kW in efficiency class IE3
- 50 Hz and 60 Hz versions
- Thermal protection devices incorporated in stator
- Long life bearings
- AISI 431 drive shaft (AISI 329 on request)
- Leakage detection system in seal chamber (standard) and motor (on request)
- Double silicon carbide mechanical seals with Oil Lifter in large oil chamber
- Discharge from DN50 to DN500
- Large free passage declared for every model
- WET or DRY version available
- Original closed loop cooling system with internal recirculation
- Operating temperature up to 40°C (standard)
- Explosion-proof available (Designed in accordance with IECEx)
- MQ-series Features Movie
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Features
CABLE GLAND
Cable gland system with cable holder.
The universal thread ring-nut can be removed to fix a rigid or flexible duct to the cable gland to protect the cable from physical and mechanical stresses.
On request a special resin seal is applied to prevent all possibility of water leaking into the motor even if the outer sheath is torn.
ELECTRICAL CONNECTIONS
The terminal board, which simplifies electrical wiring procedures, is in an airtight compartment which can be fitted with a leakage detection sensor.
THERMAL SENSORS
Detects excess heat, therefore, protecting the pump against overheating.
PAINTING
Bicomponent epoxy paint, standard thickness 200 μm
(max 400 μm on request)
IE3 PREMIUM EFFICIENCY MOTOR
BEARINGS
Ball bearings with lifetime lubrication designed to guarantee 100,000 working hours.
Optional sensors can monitor temperature and vibration to guarantee optimal performance.
WATER SENSOR
Sensor fitted as standard to detect water or moisture in the mechanical seal oil chamber.
Also standard on explosion-proof models.
MECHANICAL SEALS
(with OIL LIFTER)
Double silicon carbide mechanical seals in oil sump to ensure excellent reliability even in heavy-duty conditions.
Thanks to a special component (oil lifter) the upper mechanical seal remains lubricated at all times,
with more effective protection against wear.
IMPELLERS
The most suitable impeller can be selected for each application.
-
MQB
Open Channel
impeller -
MQC
Chopper
impeller -
MQU
Vortex
impeller -
MQG
Grinder
impeller -
MQS
High Head
impeller
Overview of operating ranges
-
MQB (Open Channel)
Range characteristics
50Hz 60Hz Power 1.1 - 250 kW 2.2 - 200 kW Poles 2 / 4 / 6 / 8 2 / 4 / 6 Discharge DN65 - 500 DN65 - 500 Free passage max 160 x 110 mm max 160 x 110 mm Max flow rate 1240 l/s 1186 l/s Max head 100.3 m 92.4 m -
Hydraulics
- Cast iron open channel impeller
- Large free passage
-
Suitable for
- Liquids containing suspended solids
- Suitable for sewage and drainage systems and first rainfall tanks
-
MQC (Chopper)
Range characteristics
50Hz 60Hz Power 1.5 - 75 kW 3 - 45 kW Poles 2 / 4 / 6 2 / 4 / 6 Discharge DN80 - 200 DN80 - 150 Free passage max 80 mm max 80 mm Max flow rate 281.6 l/s 129.5 l/s Max head 82.7 m 76.1 m -
Hydraulics
- Chopper impeller in hard cast iron as standard
- Chopper system able to cut particles of any shape of proportion
Efficiency of hydraulics only 3/5% less than that of a normal channel impeller
-
Suitable for
- Liquids containing solid parts and fibres
- Suitable for sewage, lifting of not strained black water
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MQC Submersible Chopper Pumps
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MQC Chopper Pump Cutting Test
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MQU (Vortex)
Range characteristics
50Hz 60Hz Power 3 - 45 kW 7.5 - 37 kW Poles 2 / 4 2 / 4 Discharge DN65 - 150 DN65 - 150 Free passage max 150 mm max 125 mm Max flow rate 107.9 l/s 89.3 l/s Max head 79.2 m 81.6 m -
Hydraulics
- Cast iron vortex impeller
- Full free passage
-
Suitable for
- Biological liquids and wastewater
- Suitable for civil pumping stations and lifting wastewaters in livestock farms and industrial plants
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MQG (Grinder)
Range characteristics
50Hz 60Hz Power 7.5 - 11 kW 11 kW Poles 2 2 Discharge DN50 - G2" DN50 - G2" Free passage - - Max flow rate 9.0 l/s 6.4 l/s Max head 63.5 m 78 m -
Hydraulics
- Cast iron multi-channel open impeller
- Grinding system with rotary knife
-
Suitable for
- Soiled liquids containing fibres and filaments
- Suitable for professional and heavy-duty applications
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MQS (High Head)
Range characteristics
50Hz 60Hz Power 7.5 - 11 kW 11 kW Poles 2 2 Discharge DN50 - G2" DN50 - G2" Free passage max 7.5 mm max 7.5 mm Max flow rate 11.7 l/s 6.9 l/s Max head 64.5 m 79.2 m -
Hydraulics
- Cast iron multi-channel open impeller
- High manometric head
-
Suitable for
- Clean, rain and seepage water
- Suitable for applications in agriculture, irrigation and fish farming
Applications
Civil lifting
The collection and disposal of urban wastewater are of primary importance to safeguard health requirements. These applications require plants designed to serve a large number of users, often in complex, heavy-duty situations.
- [Characteristics]
- Soiled wastewaters with solids
- [Solution]
- MQB (Open Channel),
MQU (Vortex)
Lifting sewage
Lifting sewage is a complex problem that demands reliable products, due to the solids present and the high number of starts per hour generally required.
- [Characteristics]
- Unstrained wastewater with large solids
- [Solution]
- MQC (Chopper),
MQG (Grinder)
Draining
Rainwater and groundwater needs to be removed quickly to prevent damage to the community and public and private property.
This has increased the demand for efficient solutions capable of transferring wastewater and rainwater containing not only solids but also pollutants and abrasive substances.
- [Characteristics]
- Wastewater with solids and dirt from first rainfall and yard sluicing tanks.
- [Solution]
- MQB (Open Channel) with large free passage,
MQU (Vortex)
Industry
Industrial processes require reliable, efficient pumping systems and equipment to guarantee high performance and prevent unplanned stoppages.
Systems of this kind may involve high heads, explosive liquids or environments contaminated with chemicals and corrosive substances, brine or process waters and high temperatures.
- [Characteristics]
- Sewage and process water
- [Solution]
- MQB (Open Channel) with Molib-techTM,
stainless steel or bronze impeller if required
Agriculture
Agricultural wastewater lifting is one of the toughest challenges, due to the complexity of the operating contexts. The liquids for transfer are often heavily soiled and dense, containing filaments which require chopping before discharge into the main drain leading to the sewer.
- [Characteristics]
- Soiled wastewater with solids and fibres
- [Solution]
- MQU (Vortex),
MQC (Chopper)
Water features and irrigation
Irrigation and theme park water pumping can also pose serious difficulties, due to the high pressure required and the potential presence of sand and suspended particles. Motors operating at high rpm with long duty cycles and particularly hard-wearing materials are needed.
- [Characteristics]
- Clear or slightly soiled wastewaters
- [Solution]
- MQS (High Head)
