Yunnan Water Purification and Reverse Osmosis Equipment Selection and Quotation Guide

How to select purification equipment: prepare four types of information first

Equipment with the same name may suit different raw water and target applications. Begin selection discussions with project information, then consider processes and configurations.

1. Raw water: describe the source, seasonal changes, existing test reports, and sampling dates. If no report is available, first confirm the parameters that need testing.

2. Application: state whether the water is for drinking, production processes, boiler makeup, cleaning, or agricultural irrigation. Define product water requirements and acceptance criteria separately for each application.

3. Demand: provide daily water consumption, peak flow, daily operating hours, storage requirements, and near-term expansion plans.

4. Site: provide the specific city or prefecture in Yunnan and project location, site dimensions, power, water inlet and outlet connections, drainage conditions, and equipment transportation routes.

How much does reverse osmosis equipment cost? Compare the same quotation scope first

When raw water conditions, production capacity, product water requirements, and supply scope differ, comparing only total equipment prices can overlook necessary items. Ask suppliers to break quotations into items that can be checked.

List separately: pretreatment, main unit and membrane elements, pumps, valves and controls, tanks and piping, transportation and lifting, installation and commissioning, testing and acceptance, taxes and fees, and after-sales scope. State separately whether site construction and consumables are included.

This page provides no unverified uniform price. Specific configurations, costs, and delivery arrangements depend on a written plan after project conditions have been verified.

Conditions for comparing production capacity, recovery, and power

When checking parameters, require test or design conditions to be stated as well, such as raw water conditions, water temperature, feedwater pressure, operating time, and measurement basis. One figure in a parameter table cannot replace a complete design description.

Confirm whether "production capacity" is hourly or daily and the operating duration involved. Check that design, site-measured, and acceptance values use the same units and scope. State applicable conditions for recovery, electricity consumption, and consumable service life as well.

Further confirm the plan by water use setting

School, hotel, and food service projects should separately list points of use, peak demand, and daily management responsibilities. Factory projects should describe production water separately from other needs.

Soilless growing projects should add crops, cultivation methods, nutrient solution preparation, and recirculation management needs. Specific production and growing plans determine water parameters. Do not directly promise another project's configuration.

Records to retain for installation, commissioning, and acceptance

Agree the supply list, site connections, construction scope, commissioning procedures, acceptance criteria, and responsible persons during procurement. On delivery, check models, quantities, and documentation item by item.

Acceptance records should state date, raw water and operating conditions, testing or measurement methods, and results. Retain operating instructions, shutdown and emergency procedures, consumable specifications, and maintenance contacts with the delivery documentation.

How to compare operating costs and maintenance

Beyond the initial purchase, check the budget basis for planned operating hours, water use and drainage, electricity, consumables, cleaning and maintenance, and personnel management. Define budget assumptions clearly and calibrate them later using site records.

Do not promise replacement timing for every cartridge or membrane element solely by a fixed number of months. Retain equipment instructions, operating records, and maintenance records. Responsible personnel should confirm inspection and replacement plans against actual conditions.

Common procurement questions

What information is needed before requesting a quotation?

Provide the raw water source and existing test reports, water applications, daily consumption and peak flow, operating hours, project location, and site installation conditions. Confirm product water requirements and acceptance criteria during plan discussions.

Can two quotations be compared only by hourly production capacity?

Also check raw water and operating conditions, product water requirements, supply lists, and construction and after-sales scope. Prices and parameters are comparable only when their basis and boundaries match.

How are installation and maintenance arranged in remote areas of Yunnan?

First describe the specific city or prefecture, site access, and equipment transportation conditions. Then check personnel arrangements, transportation and construction costs, and ongoing maintenance methods. Actual service scope and timing depend on a written plan confirmed by both parties.

Information and application boundaries

This page was compiled on September 30, 2026, to prepare procurement discussion information. Specific design, testing, and acceptance should follow applicable standards, corresponding equipment information, and the confirmed project plan.

• National Standards Full-Text Public Access System: GB 5749—2022, Standards for Drinking Water Quality, for checking applicable requirements only where the intended use is drinking water.
• DuPont: Reverse osmosis technology and technical manual portal, to understand processes and operating-condition effects. It does not replace documentation for the purchased equipment.