Submersible Lightweight Compact Dewatering Pumps Tsurumi KTV SERIES features submersible pumps of lightweight compact design. The pump body is made of die-casted aluminium alloy, which is extremely advantageous in terms of portability. The sleeves that protect the pump casing, oil casing and water passages are made of synthetic rubber as a consideration against wear. With the exception of the 0.75kW models, all models of the KTV series are equipped with a protection plate to prevent damage to the oil casing. The impeller is of semi-vortex design that considerably reduces performance drop caused by wear. As such, these Tsurumi pumps provide excellent reliability and durability that enable continuous duty for long periods of time.
The KTVE series features automatic pumps without cumbersome floats. An innovative electrode type relay unit built into the pump automatically starts and stops the pump to eliminate dry-running. This mechanism greatly reduces power consumption and extends
operating life. Also available is the KTV (slurry)-series that Tsurumi equips with an agitator for slurry dewatering.
Tsurumi’s KTV SERIES pumps have been widely adopted in various fields from civil engineering and construction to large-scale construction projects (tunnels, bridges, dams, etc.) where the pumps must perform reliably in severe environments.
| Motor Output | 0.75kW 1.5kW | 2-2.2kW | 3-3.7kW | 5.5kW | ||
|---|---|---|---|---|---|---|
| KTV | 2” | 50mm | ||||
| 3” | 80mm | |||||
| KTVE -Automatic- |
2” | 50mm | ||||
| 3” | 80mm | |||||
| KTV -Slurry- |
2” | 50mm | ||||
| 3” | 80mm | |||||
Drainage Pumps
of lightweight compact design
with an innovative electrode type relay unit
Slurry pumps that deliver powerful agitation for discharging slurries laden with silt, earth, sand or other particulate
Prevents water incursion due to capillary action should the cable sheath be damaged or the end of cable submerged. Also prevents moist air from infiltrating the motor housing and condensation from
forming inside the housing due to temperature differences between the housing and outside air.
Prevents unexpected water incursion that can occur if the cable is damaged, by protecting the cable against the tugging and rough handling found at construction sites.
Directly cuts the motor circuit if excessive heat builds up or overcurrent occurs in the motor.
Made of a solid material (without welds) of thoroughly proven bending strength and tensile strength.
Provide a great advantage in terms of portability. The pump body is made of die-casted aluminium alloy.
The sleeves that protect the pump casing, oil casing and water passages are made of synthetic rubber,
thus eliminating worries about durability and wear.
Isolated in the oil chamber where a clean, non-corrosive and abrasion-free lubricating environment is
maintained. Compared with the water-cooled outside mechanical seal, it reduces the risk of failure
caused by dry-heating and adhering matter. The silicon carbide provides 5 times higher corrosion, wear and heat resistance than the tungsten carbide. Rubber parts of the upper and lower fixing rings are
made of NBR or FPM (FKM), which provides higher resistance to heat and chemicals.
Provides lubrication and cooling of the seal faces down to 1/3 of normal oil level, thus maintaining
a stable shaft sealing effect and prolonging seal life longer. The Oil Lifter is Tsurumi original design.
Used as a “Dust Seal”, it protects the mechanical seal from abrasive particles.
Protect the oil casing made of aluminium alloy die casting from abrasive particles.
Resists wear caused by abrasive particles and enables the pump to maintain its original performance for an extended period of time.
Consists of a shaft-mounted agitator and a dedicated strainer. The agitator made of ductile cast iron
resists wear caused by abrasive particles, and it suspends solids to assist in pumping sediments in
combination with the strainer.
Consisting of an electric probe and relay unit, this enables automatic operation, reduces power consumption and extends operating life.
Contributing to reduction of power consumption, prevention of dry-running and extension of operating life.
Simply connect the pumps to a power supply for automatic operation.
By setting up multiple Tsurumi automatic pumps at different height levels, these pumps prevent damage caused by submersion in flood water resulting from heavy rain. These pumps do not require any complex setting or installation work. Installation is as easy as positioning the pumps and connecting them to a power supply. If flooding occurs and the water level increases, the pumps automatically start pumping out water.
40 % Reduction in Power Consumption Electrode Control Device
Tsurumi has developed a unique automatic control device utilizing an electrode. It consists of an electric probe and relay unit. When the water level rises to contact the electric probe, electric continuity is produced between the electrode and the pump body, and the relay unit built into the pump turns on the pump.
The relay unit includes a timer function. The pump stops automatically in about one minute after the water surface falls below the electric probe. If the water level rises again to contact the electric probe within the run time, the pump continues to run for one more minute.
Since this mechanism eliminates dry-running, the pump can reduce
power consumption by up to 40 percent compared with non-automatic
pumps (Tsurumi comparison). It also prevents chattering caused by a turbulent water surface and extends operating life.
It is possible to set a lower starting water level by using an extension probe (optional accessory). The starting water level is adjustable because the extension probe can be cut to the desired length as it is made of coil spring.
Drainage pumps of lightweight compact design
The KTV-series is a submersible three-phase portable drainage pump. Though it is a three-phase unit, the pump is designed to weigh lighter for portability, yet it can be used for pumping liquid found in ordinary construction and foundation works. The top discharge, side flow design assures efficient motor cooling even when it operates with its motor exposed to air. The slim design allows the pump to be placed in a confined space.
| Discharge Bore | Model | Motor Output | Phase | Starting Method | Solids Passage | Dimensions L x H | Dry Weight*2 | Cable Length |
|---|---|---|---|---|---|---|---|---|
| mm | kW | mm | mm | kg | m | |||
| 50 | KTV2-8 | 0.75 | Three | D.O.L. | 8.5 | 200 x 369 | 11.5 | 5 |
| 50 (80)*1 | KTV2-15 | 1.5 | D.O.L. | 8.5 | 240 x 396 | 21 | 8 | |
| 50 (80)*1 | KTV2-22 | 2.2 | D.O.L. | 8.5 | 240 x 416 | 23 | 8 | |
| 50 | KTV2-37H | 3.7 | D.O.L. | 8.5 | 285 x 510 | 36 | 8 | |
| 80 (100)*1 | KTV2-37 | 3.7 | D.O.L. | 8.5 | 285 x 510 | 36 | 8 | |
| 80 (100)*1 | KTV3-55 | 5.5 | D.O.L. | 8.5 | 300 x 545 | 47 | 8 |
*1 Discharge bore in parentheses available upon request
*2 Weights excluding cable
Automatic drainage pumps with an innovative electrode type relay unit
The KTVE-series is a submersible three-phase automatic portable drainage pump. An innovative electrode type relay unit built into the pump automatically starts and stops the pump to eliminate dry-running. This mechanism greatly reduces power consumption and extends operating life. Though the pump is a three-phase unit, it is
designed to weigh lighter for portability, yet it can be used for pumping liquid found in ordinary construction and foundation works. The top discharge, side flow design assures efficient motor cooling even when it operates with its motor exposed to air. The slim design allows the pump to be placed in a confined space.
| Discharge Bore | Model | Motor Output | Phase | Starting Method | Solids Passage | Dimensions L x H | Dry Weight*2 | Cable Length |
|---|---|---|---|---|---|---|---|---|
| mm | kW | mm | mm | kg | m | |||
| 50 | KTVE2.75 | 0.75 | Three | D.O.L. | 8.5 | 200 x 417 | 12.7 | 5 |
| 50 (80)*1 | KTVE21.5 | 1.5 | D.O.L. | 8.5 | 240 x 462 | 21.5 | 8 | |
| 50 (80)*1 | KTVE22.2 | 2.2 | D.O.L. | 8.5 | 240 x 462 | 24.5 | 8 | |
| 80 (100)*1 | KTVE33.7 | 3.7 | D.O.L. | 8.5 | 285 x 585 | 39.5 | 8 | |
| 80 (100)*1 | KTVE35.5 | 5.5 | D.O.L. | 8.5 | 300 x 620 | 52 | 8 |
*1 Discharge bore in parentheses available upon request
*2 Weights excluding cable
Slurry pumps that deliver powerful agitation for
discharging slurries laden with silt, earth, sand or other particulate
The KTV-series of slurry-handling type is a submersible three-phase portable slurry pump. It is equipped with an agitator that assists smooth suction of the settled matters. Though the pump is a three-phase unit, it is designed to weigh lighter for portability, yet it can be used for pumping slurry. The pump parts such as the
impeller and the pump casing are made of wear-resistant materials. The top discharge, side flow design assures efficient motor cooling even when it operates with its motor exposed to air. The slim design allows the pump to be placed in a confined space.
| Discharge Bore | Model | Motor Output | Phase | Starting Method | Solids Passage | Dimensions L x H | Dry Weight*2 | Cable Length |
|---|---|---|---|---|---|---|---|---|
| mm | kW | mm | mm | kg | m | |||
| 50 (80)*1 | KTV2-50 | 2 | D.O.L. | 8.5 | 250 x 453 | 25 | 8 | |
| 80 (100)*1 | KTV2-80 | 3 | Three | D.O.L. | 8.5 | 295 x 550 | 38 | 8 |
*1 Discharge bore in parentheses available upon request
*2 Weights excluding cable
| KTV | KTVE | KTV(Slurry) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KTV 2-8 | KTV 2-15 | KTV 2-22 | KTV 2-37H | KTV 2-37 | KTV 3-55 | KTVE 2.75 | KTVE 21.5 | KTVE 22.2 | KTVE 33.7 | KTVE 35.5 | KTV 2-50 | KTV 2-80 | ||
| PUMP | Discharge Bore mm | 50 | 50 (80)*1 | 50 | 80 (100)*1 | 50 | 50 (80)*1 | 80 (100)*1 | 50 (80)*1 | 80 (100)*1 | ||||
| Discharge Connection | Hose Coupling | |||||||||||||
| Solids Passage mm | 8.5 | |||||||||||||
| Semi-vortex | ||||||||||||||
| Impeller | ||||||||||||||
| Urethane Rubber | Ductile Cast Iron | Urethane Rubber | Ductile Cast Iron | High-chromium Cast Iron | ||||||||||
| V-ring | Nitrile Butadiene Rubber | |||||||||||||
| Protection Plate | - | 304 Stainless Steel | - | 304 Stainless Steel | ||||||||||
| Casing | Butadiene Rubber + Natural Rubber | |||||||||||||
| Dual Inside Mechanical Seals (with Oil Lifter) | ||||||||||||||
| Shaft Seal | Silicon Carbide | |||||||||||||
| Agitator | - | Ductile Cast Iron | ||||||||||||
| MOTOR | Type | Continuous-duty Rated, Dry-type Induction Motor | ||||||||||||
| Output kW | 0.75 | 1.5 | 2.2 | 3.7 | 5.5 | 0.75 | 1.5 | 2.2 | 3.7 | 5.5 | 2 | 3 | ||
| Phase | Three | |||||||||||||
| Pole | 2 | |||||||||||||
| Insulation | E | |||||||||||||
| Starting Method | D.O.L. | |||||||||||||
| Motor Protector (built-in) | CTP | |||||||||||||
| ml | 150 | 270 | 400 | 680 | 150 | 270 | 400 | 680 | 270 | 400 | ||||
| Lubricant | Turbine Oil (ISO VG32) | |||||||||||||
| Frame | Die-casted Aluminium Alloy | |||||||||||||
| 420 | 420 | |||||||||||||
| Shaft | Stainless Steel | 403 Stainless Steel | Stainless Steel | 403 Stainless Steel | ||||||||||
| m | 5 | 8 | 5 | 8 | ||||||||||
| Cable | PVC | Chloroprene Rubber | PVC | Chloroprene Rubber | PVC | Chloroprene Rubber | ||||||||
| Automatic Control Device | - | Electrode | - | |||||||||||
| Dry Weight*2 kg | 11.5 | 21 | 23 | 36 | 47 | 12.7 | 21.5 | 24.5 | 39.5 | 52 | 25 | 38 | ||
