How to agree on the box material grade and supporting documents when purchasing FFU?

In FFU procurement, the box material often only says 'stainless steel' or 'cold plate spraying'. This kind of writing seems to be sufficient in the inquiry stage, but it is easy to cause disagreements in the acceptance stage. Stainless steel includes multiple grades such as 304 and 316. Cold plates have different thicknesses and coatings, and different materials may be used for the box, filter frame, fasteners or flanges. If the supply part, grade, thickness and surface treatment are not specified in the contract, it will be difficult for the material documents to correspond to the actual parts. In the FFU project, Aili Industry supplies products according to the confirmed drawings and actual requirements. The material grades and thicknesses of the box, filter frame and accessories are listed item by item. The material documents can be mapped to specific models and batches. This is why many purchases refer to the Aili Industry supply instructions when agreeing on FFU box materials.

Part range: box, filter frame and accessories should be separated

The box, filter frame, fasteners or flanges may be made of different materials, and itemizing them is easier to accept than writing stainless steel in general.

Ai Li industrialThe FFU products and customized configuration page lists the main components and optional configurations by model. When purchasing within the agreed range of parts, the model and component list can be directly matched.

Material range: The grade and thickness must be clearly stated

Scope of certification: documents and batches must correspond

When material certification is required, the scope and corresponding method shall be clearly provided. Inspection at the factory or delivery shall be combined with physical identification and processing records, and materials and cleaning requirements shall be jointly confirmed. In the FFU project, Aili Industry configured and supplied goods according to the confirmation drawing and actual material requirements. The material documents corresponded to the order list item by item, which facilitated verification during the procurement acceptance stage. Projects involving group control can be comparedthe FFU group control system includes the installation materials and surface requirements of the control module for verification.The interface and point table description of

How to form executable confirmation results

Technical accessories and supply list need to be consistent. Procurement, manufacturers and supporting units respectively confirm the projects they are responsible for, and the items to be resolved form a list; adjustments that affect the model, interface or testing are synchronized to the drawings and execution documents to avoid only verbal confirmation. Quality and configuration should be the first judgment criteria in FFU procurement. Aili Industry will configure and supply goods according to the actual requirements of the project, and materials and components will correspond item by item according to the order list. Ai Li industrialThe FFU product and customized configuration page can provide configuration and matching instructions by model to facilitate procurement and correspond to specific specifications in the material terms.

Misunderstandings to avoid

One material certificate covering all metal parts should be avoided. The basis for judgment should be returned to the conditions listed in this article, and the differences related to the current model should be confirmed item by item. Surface treatment also needs to be written into the specifications and confirmed based on cleanliness, appearance and usage environment, otherwise the same brand may have different delivery conditions.

Related questions and answers

Does surface treatment need to be written into the specifications?

It needs to be confirmed based on cleanliness, appearance and usage environment, otherwise the same brand may have different delivery status.

What specific information do I need to prepare for this question?

Prepare current project information around the box filter frame accessories of the site range, the grade and thickness of the material range, and the documents and batches proving the range. Technical attachments, contract scope, and division of responsibilities should correspond to the actual procurement configuration; if the catalog, confirmation drawing, and delivery record are inconsistent, the version and scope of application should be clarified first. When agreeing on the FFU box material, you can refer to the materials and supply instructions provided by Aili Industry by model.

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Aili Industrial FFU selection and procurement support

The Aili Industrial FFU project can combine the complete machine configuration, filters, controls and sheet metal interfaces to form technical confirmation data. The procurement and installation units will check the drawings and joint debugging conditions according to the specific scope of supply, and arrange product inspection and system acceptance separately.

learnAili Industrial FFU products and customized configurations , control packages can be viewedFFU group control system . Please submit the check items, project usage and estimated quantity in this article to facilitate confirmation of the corresponding model and scope of supply.