After-sales, maintenance & overhaul

Calibrations & process inspection

Reliable measurements are important for monitoring and controlling a water treatment installation. That is why our service engineers check and calibrate pH, redox, oxygen and conductivity sensors, among others. Depending on the type of instrument, level and pressure measurements can also be checked.

We can also evaluate the overall process operation, for example by reviewing chemical dosing, measured values and other relevant process parameters. Any deviations and possible adjustments are discussed with the customer.

Preventive and corrective maintenance

During a maintenance visit, our service engineers inspect the installation and carry out maintenance or repair work where necessary.

Maintenance can be carried out on request or according to an agreed maintenance schedule, taking into account operating conditions and applicable safety regulations.

Depending on the installation, this includes:

• Inspection and cleaning of pumps, valves, pipework and other components.
• Checking dosing systems, filters and electrical components.
• Replacement of worn or defective parts.
• Detecting and resolving technical faults.

Cleaning of vacuum evaporators

In vacuum evaporators, deposits of salts, scale and other contaminants can reduce heat transfer, increase energy consumption and limit evaporation capacity.

Timely maintenance helps restore the efficiency and operational reliability of the installation and extend the lifetime of its components.

PCA Water carries out automatic chemical cleaning of vacuum evaporators, tailoring the cleaning procedure and the chemicals used to the nature of the fouling, the materials used and the manufacturer’s specifications.

We also provide mechanical cleaning of heat exchangers that form part of the evaporation installation. This removes stubborn deposits that cannot be adequately dealt with by chemical cleaning.

Membrane cleaning (CIP)

In membrane installations, such as reverse osmosis (RO), nanofiltration (NF) and ultrafiltration (UF), fouling can lead to lower permeate production, a higher pressure drop and a shorter membrane lifetime.

PCA Water carries out Cleaning-in-Place (CIP) cleaning, tailoring the cleaning procedure to the membrane type, the suspected fouling and the manufacturer’s specifications.

PCA Water also designs and builds fully automated CIP installations, allowing membrane cleaning to be carried out in a controlled and reproducible way. Parameters such as temperature, flow rate, pH and cleaning time can be automatically monitored and controlled.

By comparing the process parameters before and after cleaning, we assess the effectiveness of the cleaning.

Follow-up, optimisation & modifications

Changing production processes, water qualities or discharge conditions can make modifications to an existing water treatment installation necessary.

PCA Water investigates possible improvements based on the current process layout, available measurement data and operating conditions.

This may involve adjusting process settings, adapting chemical dosing, replacing components or expanding the installation with additional treatment techniques.

Wherever possible, we look at how existing components can be retained and reused.

Spare and wear parts

PCA Water supports customers in the selection and supply of spare parts for water treatment installations.

When selecting parts, we take into account the technical specifications, the chemicals used and the existing installation.

• Dosing pumps, valves, seals and injection lances.
• Measuring probes, sensors and calibration fluids.
• Filter media, membranes and ion exchange resins.
• Other mechanical and electrical components.

Request a maintenance visit

Would you like to set up a periodic calibration and maintenance schedule, or does your existing water treatment need to be optimised for new discharge standards?

Contact our service department for a tailored proposal.