EWKS / EWKS Wassertechnik clean-in-place pumps and water treatment plants

Hydrodynamics and sealless containment of CIP RP-Boy mobile cleaning stations

Mobile clean-in-place pumping systems from EWKS (EWKS Wassertechnik) series CIP RP-Boy are engineered for safe handling of aggressive acidic and alkaline descaling solutions up to 60 °C.

The vertical coaxial alignment of the electric motor shaft isolates dynamic mechanical seals from contact with aggressive chemical fluids.

Wetted pump components are cast from chemically inert polypropylene and austenitic stainless steel, eliminating corrosive degradation of the impeller under turbulent cavitation conditions.

The integrated polyethylene vessel features a tight sealing lid and internal flow baffle, suppressing fluid foam generation during high-rate return flow.

Thermal engineering and flow calculations for the CIP RP-Boy 130 pump unit

The EWKS (EWKS Wassertechnik) flushing pump station model CIP RP-Boy 130 delivers volumetric capacity up to 6000 liters per hour at system discharge heads up to two bar.

This flow output establishes turbulent flow regimes inside shell-and-tube and plate heat exchangers with Reynolds numbers comfortably exceeding 4000.

High boundary layer shear velocity accelerates the diffusion of chemical descaling agents into stubborn carbonate and sulfate matrixes, reducing total cleaning duration without localized plate overheating.

An integrated suction strainer retains dislodged scale fragments, shielding the impeller from abrasive jamming.

Hydrodynamic principles of sequential flow reversal with Durchflusswechsler valves

The manual flow reversal valve EWKS Durchflusswechsler dramatically enhances the efficiency of non-dismantled chemical descaling operations.

During the introductory phase of the cycle, the operator directs fluid in an upward path from bottom to top, displacing air pockets and wetting all upper plate passages.

Shifting the manifold control lever reverses fluid circulation downward, flushing loosened sludge and particulate dislodgements down out of the equipment.

This downward flush prevents heavy debris from accumulating in lower collection manifolds, eliminating secondary blockage of narrow fluid passages.

Chemical scale dissolution and protective metal passivation with EWKS detergents

Specialized EWKS chemicals belonging to the CIP-Kalklöser product line incorporate active surfactants and organic corrosion inhibitor complexes.

As calcium carbonate and iron oxide scales dissolve, the inhibitor forms a protective monomolecular barrier across freshly exposed copper, brass, and stainless steel alloy surfaces. This barrier halts acid attack against base metals and prevents pitting corrosion during flushing operations.

A secondary passivation pass with neutral EWKS formulations passivates metallic boundaries, preserving clean heat exchangers until regular plant restart.

System architecture of Trennmodul Elektrokühlung hydraulic isolation modules

Engineered isolation stations from EWKS (EWKS Wassertechnik) series Trennmodul Elektrokühlung are configured to protect cooling loops of high-capacity transformers, thyristor drives, and induction furnaces.

The primary closed loop circulates high-purity demineralized water with low electrical conductivity, whereas heat rejection to ambient water occurs through an external cooling tower loop.

The plate heat exchanger within the module is fabricated from high-grade alloy steel with electropolished surfaces, minimizing hydraulic head loss while delivering dielectric circuit isolation.

Multi-stage ion-exchange demineralization across EWKS water treatment skids

Engineered EWKS water treatment systems execute thorough process water purification for industrial boiler feeds and commercial cooling circuits.

Incoming raw water flows through multi-cartridge sediment filtration, strong-acid cation exchange vessels removing hardness salts, and anion exchange columns binding silicates and sulfates.

For critical production streams, polishing mixed-bed exchangers Mischbetttauscher reduce electrical conductivity down to fractions of a microsiemens, protecting heat transfer walls against hard scale accumulation.