Before requesting a purified water system quote, assemble a project brief that lets each supplier price the same scope. The first package can be a short document with supporting files. Mark preliminary figures clearly and name the person responsible for confirming them. Use the checklist below to organize your request for quotation.
Confirm Intended Uses and Quality Targets
Ask your process and quality teams to define the intended water uses and project water-quality requirements. Water quality should suit its intended use.
Put approved requirements in the brief, with the document revision and contact for technical questions. If a target is still under review, label it as pending and ask the supplier to state the assumption used in its proposal. Keep that assumption visible when comparing quotations.
Attach the Source-Water Report
Provide the available source-water analysis and identify the supply source. Include the sampling date and location so suppliers can understand what the report represents.
Send the actual laboratory report as an attachment. A copied summary may omit units or test details. Where information is missing, list the gap and agree who will obtain it before equipment selection is finalized.
Describe Demand Over a Working Day
Record minimum and peak demand as well as expected daily volume. Include the operating schedule and periods of low demand. Consider water production, storage, and distribution together when preparing these figures.
A simple time-based worksheet can show when water is needed. Label each figure with its units and explain whether it is measured, calculated, or estimated. Separate the current project from a possible expansion so suppliers can identify which capacity the quoted price covers.
Define the Supply Boundaries
Use a scope table to record what you want priced and what another party will provide. Add a marked layout or interface sketch if one is available.
| Item | Information to Include in the Request |
|---|---|
| Equipment Package | List the items to be quoted and identify existing equipment to be retained. |
| Storage and Distribution Interfaces | Mark the proposed connection points and assign responsibility on each side. |
| Site and Utilities | Attach the available layout and utility schedule. Flag values awaiting confirmation. |
| Installation Work | Name the party expected to handle each site task and request a separate price where responsibility is undecided. |
Ask each supplier to return the table with its proposal. Record exclusions beside the relevant item so they remain visible during technical and commercial review. For an overview of the equipment category, see purified water systems.
Agree on Documents and Acceptance Responsibilities
Identify the required qualification documents and acceptance activities with your quality team. These may include a user requirements specification, factory acceptance testing, and site acceptance testing.
For each requested deliverable, specify:
- The document or activity to be included in the price.
- Who prepares it and who reviews or approves it.
- When it is due and which project milestone it supports.
- How open comments and agreed revisions will be recorded.
Keep a dated list of clarification questions with the quotation files. Send the same confirmed changes to each bidder so your comparison uses a common revision.
To discuss a quotation with NINGRUI, send your project brief. Email supporting files to business@shanghainingrui.cn, including your company and project name so they can be matched to your inquiry. Include your intended uses, water-quality targets, source-water report, demand worksheet, and proposed supply boundaries. Identify pending decisions and the appropriate technical contact.


