Product DescriptionEco-friendlyThe traditional grease-lubricated
bearings (including both rolling contact bearings and sliding
contact bearings) are replaced with self-lubricating sliding
contact bearings, eliminating the pollution hazard to both the
transmission medium and the site environment.
Energy-savingLubricant is no longer neededLess material
used:Traditional bearing body removedShorter pump shaft - reduce
one mechanical sealIncreased efficiency:Hydraulic model improved
and optimisedChanges in structure and lubrication methods improve
efficiency Maintenance-free and low operation cost Maintenance-free
bearing eliminates manual inspectionThe non-driving end seal adopts
static seal technique,eliminating one mechanical sealLonger bearing
lifeThe service life of traditional ball bearings is affected by
the operating conditions. The general design life is about 2-5
years. With this product, the bearing service life can reach 5-10
years.Safer, smoother, and more reliable operationCarefully
designed to reduce vibration and noise.The non-driving end adopts
static sealing, which reduces one point of failure.The bearing cage
of the traditional double-suction pump is removed, the length of
the pump shaft is shortened, improving the operational stability of
the pump.Diaphragm coupling for the full range of pumps.Wider
applicationA variety of material combinations can be chosen
according to different purposes, allowing for a wider range of
application.Simpler structure, easier repairThe original advantages
remaining unchanged - the casing is split into two parts.
Inspection work only needs tlhe upper casing to be dismounted,
instead of the main distribution
piping.Inlet diameter(mm)Φ150 ~ φ500φ600 ~
φ1200Frequency(Hz)50605060Flow (m3/min)5~406~5040~20045~250Head(m)5~1308~18010~12015~180Pump
stage High speed 2,42,46,8,10,126,8,10,12Low
speed 4,64,68,10,12,148,10,12,14 Standard
specification Special specification Extraction
medium Clear water, industrial water, river water Sea
water, paper pulp liquid (water-like), organic liquid fertilizer,
medium with impurities Medium temperaturesBelow
80ºC80ºC~300ºCShaft sealStatic seal/Mechanical sealStatic
seal/Mechanical sealBearing and
lubricantMaintenance-freewater-based lubricantSpecial
maintenance-free self-lubricatingRotating directionClockwise(From
the prime mover) CWAnti-clockwiseCCWImport and export
flangeGBJIS. ANSI. API. JPI etc.Inlet & outlet directionHorizontal
inlet,horizontal outletAs per customer requirementsDrive
methodElectric motors, internal combustion engines, steam turbines,
etc.Electric motors, internal combustion engines, steam turbines,
etc.Detailed Photos Corrosion resistant
alloy ComponentStandard specificationSpecial specificationPump
casing & Casing coverGrey iron/ Ductile ironStainless
steel/Corrosion-resistant stainless steelImpellerGrey iron/Cast
steel/Stainless steelCorrosion-resistant stainless
steel/BronzeShaftCarbon steelStainless steel/Corrosion-resistant
stainless steelBearingMaintenance-free water-based
lubricant Special maintenance-free self-lubricating Seal
ring Carbon steel/Copper Grey iron/Stainless
steel/Corrosion-resistant stainless steel Product FeaturePump
casing & Casing coverThe pressure chamber of ES type double suction
pump has a trapezoidal cross-section. To avoid shape distortion due
to casting errors, the flange of the casing cover is designed to be
slightly larger than the flange of the casing. For a split casing
pump with a lower head, a single-shell structure is used. To reduce
the pressure pulsation during the operation, the diaphragm tongue
of the pump pressure chamber is designed with an inclined shape.
For a split casing pump with a higher head, the radial force
generated when the pump is running is large. Hence a double volute
chamber structure is adopted.ImpellerThe impeller of ES type
double-suction pump adopts a structure in which two identical
single-suction blades are placed back-to-back. The structure is
symmetrical, the liquid flows into the impeller symmetrically from
the suction chamber, and the generated axial forces cancel each
other out. The runner of the impeller is polished and smoothed by
tools like grinding wheels. The thickness of the impeller blades is
uniform, and they are polished very thinly at the inlet. The inlet
of the blades take the shape of a circular arc, which improves the
anti-cavitation performance of the pump.Seal ring and Impeller seal
ringThe sealing ring of ES double suction pump is designed to
protect the pump casing and cover. In order to prevent the
sealing ring from rotating when the pump is running, it needs to be
fixed with a dowel pin. To facilitate installation, the positioning
groove of the pin is provided on the middle opening surface of the
casing cover or the pump casing.Similarly, the impeller sealing
ring is a part designed to protect the impeller. When the pumped
medium contains solid particles, or, the material of the impeller
and the seal ring are the same (
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