Tsurumi - BX submersible pump Explosion proof


Tsurumi – BX submersible pump Explosion proof

The BX-series is the explosion–proof type of the B-series and is available for operating in an area in which an explosive atmosphere occurs occasionally. The pump conforms to the relevant EU directives and is certified by ATEX II 2 G Ex d IIB T4 standard.



  1. Transferring sewage and wastewater to wastewater treatment plant
  2. Dewatering wastewater from industrial plant (e.g. petrochemical plant, etc)
  3. Pumping wastewater from collection sump where explosive atmosphere is likely to present



Tsurumi-BX Series-ImpellerFlame proof according to ATEX An impeller having a wide channel extending from inlet to exit,

which prevents internal clogging by

solids sucked in via the inlet.



Tsurumi BX-explosion-proof-sewage-pumpsElectric submersible pump
Explosion proof according to ATEX 94/9/EC
II 2G Ex d II B T4.
Channel impeller
Impeller passage 47mmx53mm
Suitable for waste water and liquids carrying
waste and solid matters


Electric Motor

Dry-type submersible induction motor,
Insulation class F, 4 poles, 1420 r.p.m.
Direct on line start
Voltage: 400V, 50Hz, 3-phase
Power input: 3,00kW
Power output: 2,30kW
Nominal current: 5,4A
Start current: 33,1A
Electric Cable
10m H07RN6GX1,5mm2
Motor Protection
Miniature protector in windings
(snap-action bi-metal device)
Shaft Seal
Double mechanical seal in oil bath
additional lubrication by oil lifting device
Primary Seal:
silicon carbide on silicon carbide
Secondary Seal:
ceramic on carbon



Shielded ball bearings, maintenance-free


ø Discharge bore mm

Pumping Fluid Temperature
Type of Fluid
Municipal sewage
Pump Compo- nents Impeller
Non-clog impeller
Shaft Seal
Double mechanical seal
Shielded ball bearings
Material Impeller
Grey iron casting EN-GJL-200
Grey iron casting EN-GJL-200
Suction Plate
Grey iron casting EN-GJL-200
Shaft Seal
Silicon carbide in oil bath
Motor Type, Poles
Induction motor, 2 poles, 
IP68, Induction motor, 4 poles, IP68
Turbine oil (ISO VG32)
Insulation class F
Motor Protector (built-in)
Circle thermal cut-out
Phase / Voltage
3-phase / 400V / 50Hz / d.o.l.
Material Casing
Grey iron casting EN-GJL-200
Stainless steel EN-X30Cr13
Rubber, 10m H07RN6G
Discharge Connection
Inside thread, JIS10K flange
Optional Accessories
Guide rail fitting "TOS" 
(guide support, duck foot bend,
 lifting chain)
/Bend and stand set for free standing types

 EBARA               GRUNDFOS              KSB         TSURUMI         WILO

Grundfos-SE 1.1-11 kW Wastewater, sewage, utility and industrial applications



Grundfos-SE1-modularThe SE range of pumps is built for years of trouble-free operation. The SE range can operate submerged or dry-installed without motor cooling, and is extremely reliable and very easy to service. The pumps can be permanently installed using an auto-coupling guide-rail system or a fixed pipe connection; the pumps are also suitable for freestanding installation or for use as portable utility pumps.

The pumps are available with SuperVortex impellers (SEV) for applications with required low operating hours, dry matter content above 5 %, and a spherical free passage up to 100 mm, or with the S-tube impeller (SE1) for applications with required high operating hours, dry matter content up to 3 %, and a spherical free passage up to 100 mm.

The S-tube impeller is the only impeller on the market designed to cope with the challenges of modern wastewater with varying dry matter content. The simple and robust design of the S-tube impeller offers world class hydraulic efficiency without compromising free passage.




The SE range of pumps handles wastewater, process water and unscreened raw sewage in heavy-duty municipal, utility and industrial applications and is ideal for large flows.

A number of material variants are available for SE pumps, from variants with a stainless steel impeller to stainless steel variants for aggressive environments, meeting the standards EN 1.4408 and EN 1.4517/1.4539.



Features and benefits


  • High motor efficiency for substantial energy and cost savings.
  • Intelligent adaptive controls ensure reliable operation with low energy consumption.
  • Integrated analogue sensors offer complete monitoring of pump condition.
  • Lifting handle designed for optimum point-of-balance and correct lifting.
  • Smooth, easy-to-clean surface is extremely robust and impact-resistant.
  • One cable to the pump, simplifying pump installation, commissioning and maintenance.
  • Moisture-proof connector plug ensures that liquid cannot penetrate into the motor.
  • Patented SmartSeal auto-coupling gasket provides a completely leak-proof connection.
  • Easy-to-open clamp for the quick and easy disassembly of pump from motor unit.
  • Double mechanical shaft seal ensures longer operation time with less downtime.
  • Short rotor shaft reduces vibrations to protect shaft seals and bearings.
  • Liquidless motor cooling for continuous operation, even in dry installations.
  • Choice of SuperVortex or S-tube impeller.
  • Replaceable wear ring to return the pump to full efficiency.


EBARA            GRUNDFOS             KSB            WILO           TSURUMI