Define this task first
New projects and modification projects require different information
For new projects, provide the intended uses, consumption, and site conditions. For modifications, add existing equipment models, process diagrams, operating records, and abnormal symptoms. Modification conclusions require checks of the existing equipment.
Can you provide the existing system's nameplates, process information, and recent operating records?
Record the existing process separately from faults
Identify pretreatment, the main unit, storage, and supply stages. Provide equipment and membrane module nameplates, recent alarms, and the times of abnormalities. Where possible, retain records of flow rate, pressure, inlet and outlet conductivity, and water temperature for the same period. Avoid deciding the modification scope from a single photograph.
Determine whether demand has changed or equipment is abnormal first
Compare the designed and current uses, shifts, raw water sources, and treatment requirements. Increased demand, measurement changes, and equipment abnormalities may coexist. Check them individually with supporting evidence. Do not equate every drop in production with a need to replace RO membranes.
Specify shutdowns and retained components in the modification plan
List components to remain in use, proposed replacements, and components pending verification. Confirm connections, electrical controls, space, and integration of existing and new systems. Agree planned shutdowns, alternative water supplies, removal and installation, and acceptance responsibilities separately. Page resources do not replace site design or permitted conditions.
Check existing pipes and the connection system before choosing modification accessories
Thin-wall stainless steel water pipe modification requirements in Honghe should record the existing pipe manufacturer, series, outside diameter, and wall thickness. Before replacing press-fit fittings in Honghe, check the existing connection structure, seals, and matching tools. Similar appearance or a shared stainless steel material does not establish that old and new fittings can be mixed.
Keep a before-and-after record for retained components
For each pump, membrane vessel, tank, valve and pipe section to be retained, record the model, connections, available operating history and inspection findings. Cross-reference the original and proposed system drawings, and identify whether added equipment changes flow, pressure, material compatibility or control logic. A component that still operates is not automatically suitable for new conditions. Agree design review and test requirements before separating retrofit work, maintenance work and deferred items.
RO-system upgrades in Honghe: retain the operating baseline first
For an existing system, retain the process layout, membrane and pump models, sampling points, and normal and abnormal records before describing new outlets or targets. State the temperature, flow and pressure conditions when comparing records. Distinguish cleaning, component replacement, capacity expansion and piping changes, then check interfaces and the planned shutdown window.
Pipe and fitting integration information
Display of pipes, basic press-fit components, and threaded/flange adapters. Check specifications, connections, and supply responsibilities for the actual use.
Gudian Technology conducts the relevant business in Kunming, with remote discussions available for different regions. Supply, transportation, and site services are confirmed project by project. A general display does not indicate local stock, shops, or completed projects.
Information to bring to this discussion
The table below can serve as a checklist for this inquiry. Mark unavailable information "pending confirmation" and distinguish estimates from measured records. Do not upload identity documents, customer lists, or internal confidential materials.
| Discussion item | Information to prepare | Confirmation needed |
|---|---|---|
| Equipment identity | Nameplates, membrane models, process, and original design conditions | Which components can remain in use |
| Comparison of abnormalities | Times of occurrence, instrument readings, and replacement and cleaning records | Whether the abnormality can be reproduced under the same conditions |
| Modification scope | Shutdown arrangements, backup water supply, and old and new connections | Responsibilities for removal, installation, acceptance, and restoration |
| Existing pipe compatibility | Existing pipe markings, series documents, outside diameter and wall thickness, and connection photos | Compatibility between existing and new systems and replacement scope |
| Suitability of retained components | Component identifiers, original and revised drawings, operating-condition differences and inspection records | Which components require design review or testing, and how deferred items are handed over |
Expand the general inquiry and delivery checklist
- 01Project location
- Prefecture or city, district or county, intake point, equipment installation location, and whether different locations are involved. Do not upload identity documents or customer lists for an initial inquiry.
- 02Water source and testing
- Tap water, well water, surface water, or other sources; record sampling points, dates, testing organizations, and the report's applicable scope. Do not infer water quality from a city name.
- 03Treated-water use
- Production, cleaning, cultivation, drip irrigation, or other uses; provide the corresponding process, crop, or actual usage requirements. Acceptance requirements may differ by use.
- 04Demand and schedule
- Daily demand, peak hourly demand, permitted operating time, and storage arrangements. Mark values for confirmation when measured data are unavailable. Estimates must not be recorded as equipment guarantees.
- 05Equipment and site
- Existing equipment models, consumable specifications, power supply, space, drainage, operating environment, and site-access conditions. Equipment photos should avoid capturing personal or confidential information.
- 06Budget and delivery
- Specify the budget, supply list, transportation, unloading, installation, commissioning, acceptance, and after-sales scope. Timing and expenses are governed by the confirmations for this project.
- 07Plateau site and water temperature
- Actual installation altitude, seasonal feed-water temperatures, pump inlet pressure or water level, suction piping and power; review the specific model. Altitude is not a water-quality test.
- 08Sampling points and operating baseline
- Sampling locations, dates, units, temperature compensation, and normal and abnormal records. Keep raw water, treated water, nutrient solution and return water separate.
Continue to related guides
Information sources and service boundaries
The area guides organize enquiry topics; they do not establish this project’s water quality, local outlets, clients or deliveries. Technical references and identified local-industry reports have separate stated uses. Industry context is not Gudian project evidence. Supply and site services require confirmation per project.
Regional name reference Yunnan Provincial Department of Civil Affairs · Administrative Divisions ↗(The listed statistical tables are as of 2025-09-30; directory review date 2026-10-06). Technical content is written by Gudian Technology. Specific models, testing, delivery, and after-sales service depend on this project's confirmed documentation.
Technical references and local context
- DuPont FilmTec RO technical manual (August 2026, version 20) ↗
Reference for feed-water analysis, membrane-system design and temperature correction; it does not verify our system specifications or brand authorization.
- UMass Extension: greenhouse irrigation water analysis ↗
Reference for EC, pH, alkalinity and ion analysis; its guidance is not an acceptance threshold for a particular crop in Yunnan.
- Grundfos: suction conditions and cavitation checks ↗
Explains the need to compare available and required NPSH; the pump model, margin and site calculation require technical review.
