Kaifil
Quality control for filtration components
Incoming material checks, in-process measurement and outgoing inspection connect the delivered part to its drawing, material lot and order requirements.
Inspect the feature that affects installation
A disc is checked at its outside diameter and seating edge; a cylinder at diameter, length and seam; a basket at the flange, body and removal handle. Inspection points follow the part rather than a single checklist for every product.
Material documents and finished-part records
A material certificate identifies the supplied metal lot. A dimensional report records the fabricated part. EN 10204 3.1 certificates, conformity statements and first-article records can be included in the order; none of these documents substitutes for a test that has not been performed.
Sampling and nonconformity
Agree the sample quantity, critical characteristics and acceptance limits before production. For a quality concern, send the part and order reference, measured result and photographs. These identify the affected shipment and allow the result to be compared with the approved specification.
Inspection matrix
| Checkpoint | Method or feature | Record available within the order scope |
|---|---|---|
| Incoming mesh and wire | Mesh count, wire diameter, surface and material identification | Material lot details and ordered mill certificate |
| Cut or formed part | Caliper or gauge checks on OD, ID, length, thickness and critical fit | Dimensional results against the drawing |
| Welded component | Visual seam continuity, alignment, distortion and mesh damage | Weld and assembly inspection notes or photos |
| Layered screen pack | Layer sequence, registration, edge retention and total thickness | Pack construction and dimensional checks |
| First article | Agreed drawing features before batch release | First-article checklist, measurements and photos |
| Packing and dispatch | Quantity, part marking, protected edges and package condition | Packing list and requested pre-shipment photographs |
Pressure, integrity or other special testing requires a defined method and fixture. Confirm test availability and third-party witnessing during quotation.
Inspection methods and product checkpoints
Examples of equipment and dimensional checks from the catalog record. The checks, sampling and reports for an order are agreed against its drawing and specification.
Inspection and documentation questions
Which measuring equipment is used for routine inspection?
Routine checks include mesh-count verification, digital calipers, gauges and visual inspection of welds and assembly. The selected method must resolve the tolerance on the drawing.
Is every dimension measured on every part?
The sampling plan depends on the order and the criticality of the feature. Specify any 100% checks, first-article approval or agreed sampling plan before the order is released.
Can a third party inspect the order?
Third-party inspection can be coordinated for project orders. Agree the agency, inspection scope, hold point and schedule before production or shipment.
Measure at the working face and the assembly datum
Identify the controlled feature and its measuring position on the component drawing. A mesh opening is measured between wires, a wedge-wire slot at the working face, and a formed part at its specified seating and depth datums. Keep the method, sample positions and acceptance limit with each result so the inspection record describes the finished component.
Connect the material lot, component identification and dimensional report through the order reference. Record filters with separate mesh, support, rim and seal materials at component level. Finished-part identification and protective packing preserve that relationship through delivery; the receiving team can match the part and its records without mixing media grades or flow directions.
Inspection positions by product form
| Feature or construction | Role in the assembly | Drawing or acceptance check |
|---|---|---|
| Woven or crimped cloth | Opening and wire in both directions | Working area, edge and selected sampling positions |
| Disc or screen pack | Outline, layer order and finished thickness | Seating edge, centre opening and assembled stack |
| Cup or domed screen | Depth, crown and mounting rim | Rim datum, formed wall and seat contact |
| Cylinder or basket | Diameter, seam and seating dimensions | Several cross-sections, end fit and removal features |
| Wedge-wire screen | Slot and support geometry | Working face, near joints and mounting boundaries |
| Porous metal element | Media identity and defined test result | Specimen/part reference, method and test conditions |
Filter inspection and protective packing checklist
Complete the component fields and return the sheet with the assembly drawing and order reference.
Editable CSV with component dimensions, construction and inspection fields.
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