Lower permeate flow
Compare production against historical data under equivalent conditions. Review feed, temperature, pressures and cleaning response before attributing the decline to membrane end of life.
UltraFlux™ · Replacement and retrofit
Membrane replacement for tubular crossflow UF
We assess your existing plant, including installations with Berghof modules, to define membrane replacement or an UltraFlux™ retrofit. First, we identify the equipment and validate compatibility.
- IdentifyInstalled module
Nameplate, reference and connections.
- ValidateCompatibility
Mechanical, hydraulic and chemical.
- PlanReplacement or retrofit
Scope and plant shutdown.
Before deciding on replacement
Symptoms guide the review. Data supports the decision.
A production decline alone does not show that membranes need replacing. The first step is to distinguish reversible fouling, feedwater changes, integrity issues and system limitations.
Changes in permeate quality
Abnormal turbidity or solids carryover calls for finding the cause: membrane integrity, seals, connections or mixing between streams. Diagnosis should distinguish an affected module from the rest of the train.
More frequent cleaning
Review changes in the process and the recovery achieved after cleaning. Replacement should include a review of fouling causes and operating conditions.
Three essential checks
Compatibility goes beyond dimensions.
Dimensions, ports and installation
Full reference, module length and diameter, port position and type, seals, supports and removal clearance. A similar housing does not establish equivalence.
The loop operating point
Installed area, train configuration, recirculation and permeate flows, pressures, pressure loss, pump curve, and filtration and cleaning sequences.
Feedwater and cleaning protocol
Material, separation cut-off, solids, pH, temperature and chemicals used. Operating and cleaning limits must match the selected reference.
Choosing the scope
Replace modules or retrofit the filtration system.
| Decision | Tubular module replacement | UltraFlux™ retrofit |
|---|---|---|
| Scope | Replace modules specified for the installation after validating reference, separation and interfaces. | Assess a new outside-in crossflow filtration configuration and its integration into the process. |
| What is checked | Mechanical, hydraulic and chemical compatibility with the existing loop. | Required area, as well as manifolds, skid, pumping, backwashing, cleaning, instrumentation and controls. |
| Assessment output | A documented reference and replacement scope. | An integration proposal with defined modifications and operating conditions. |
UltraFlux™ filters from outside to inside the membrane. Introducing it into an inside-out tubular plant may require system modifications. Direct replacement cannot be assumed from an equal outside diameter or a similar area.
View the UltraFlux™ principle and specificationsPrepare your enquiry
The information we need about your plant.
Start with the nameplate and the problem you need to solve. With the available information we can identify what is missing to assess the scope.
- Installed equipmentNameplate and connection photos; manufacturer, full reference, module count and arrangement by train.
- Objective and symptomPlanned replacement, flow decline, permeate quality or retrofit assessment; preferred intervention date.
- Feedwater and operationApplication, available analysis, solids, pH, temperature, and usual flows and pressures.
- History and cleaningApproximate age, production trends, cleaning history, chemicals used and resulting recovery.
- IntegrationProcess sketch or P&ID, pump data, available space, and shutdown or access constraints.
From identification to proposal
An intervention with a defined scope.
Initial identification
We review the installed module, process and need: planned maintenance, an operating issue or a retrofit.
Scope validation
We check selection data and interfaces. If records, drawings or a plant check are needed, we define them before finalising the solution.
Proposal and planning
We define the proposed supply, required modifications, commissioning and commercial terms. Availability and lead time are confirmed for each proposal.
Answers for your installation
UF membrane replacement questions.
Can I enquire about replacement if my plant has Berghof membranes?
Yes. Send the full reference and photos of the nameplate and connections. Neptuno will review the installed equipment and feasible scope. An enquiry does not establish that any UltraFlux™ module is interchangeable with the existing module.
Does UltraFlux™ directly replace a tubular membrane?
Introducing UltraFlux™ is assessed as a retrofit. Its outside-in configuration may require changes to manifolds, skid, pumping, backwashing and controls. Engineering review determines the modifications.
Does a flow decline mean the membranes need replacing?
Not necessarily. Feedwater and operating conditions, historical data and recovery after cleaning permitted for the module are reviewed. The decision follows diagnosis and the required production and quality.
Are diameter and length enough?
They are useful but insufficient. Reference, connections, material, separation cut-off, active area, hydraulic conditions and cleaning compatibility are also needed. Two similarly sized modules may require different conditions.
How much does crossflow UF membrane replacement cost?
The quotation depends on module, quantity, supply and intervention scope. A retrofit includes the applicable modifications. Send your plant data for an assessment with a defined scope.
Can I retain the current skid and pumps?
This is checked case by case: mechanical condition, space, connections, pump curves, pressures, recirculation flow and control sequences. The proposal identifies equipment that can be retained and equipment requiring modification.
Technical knowledge
Make a better-informed decision.
Technical guide
When to replace tubular UF membranes
Diagnosis before deciding on replacement.
Technical guideReplacement in Berghof plants: what to check
Reference and interfaces for assessing compatibility.
Technical guideInformation for a UF replacement quotation
Prepare your enquiry and define the scope.
Documentation for checking selection
Berghof · Tubular module manual, October 2022 revision: sections 4.3 and 5 for limits, monitoring and diagnosis.
Berghof · Industrial module families: manufacturer configurations to check against the installed reference.
Berghof is mentioned to identify existing equipment. This page does not imply affiliation or official distribution of that brand. Selection is confirmed against the specific datasheet and plant documentation.
Your next step
Request a technical proposal.
Tell us the flow rate, water quality and treatment objective.
We will review equipment selection, integration and the data needed to size your project.
Send project detailscomercial@neptunoes.comThe form opens here. You can also email us directly.