| IP68 Ingress Protection | Confirm that the complete cable gland assembly, including the sealing ring, locknut and cable, has been tested for dust protection and continuous or temporary water immersion. | The manufacturer should provide an IP68 test result for the actual assembled configuration. The test depth and duration should match the intended application. | Test report referencing IEC 60529 or an equivalent national standard, with product configuration clearly identified. | Critical |
| Applicable Cable Diameter | Compare the gland's clamping range with the outside diameter and tolerance of the selected cable. | The cable diameter should fall within the stated sealing range without excessive compression, slippage or damage to the cable jacket. | Technical datasheet showing minimum and maximum cable diameter, thread size and installation dimensions. | Critical |
| Metal Material | Identify the material used for the body, nut, armour cone, washer and other load-bearing parts. | Common suitable options include nickel-plated brass for general industrial use and stainless steel for corrosive, marine or hygienic environments. | Material specification, alloy designation, surface-treatment description and material declaration. | High |
| Corrosion Resistance | Evaluate the base metal, plating quality, sealing materials and resistance to salt spray, humidity and chemicals. | For outdoor or coastal applications, the manufacturer should state a corrosion test method and exposure duration suitable for the selected material and finish. | Salt-spray or cyclic-corrosion report, coating specification and environmental application limits. | High |
| Thread Compatibility | Check whether the manufacturer supplies metric, British Standard Pipe, NPT or other required thread forms and tolerances. | The thread type, pitch or thread-per-inch value, tolerance and thread length should correspond to the enclosure or cable entry plate. | Dimension drawing, thread standard reference and sample inspection record. | Critical |
| Operating Temperature | Review the temperature limits of the metal body, elastomer seal and cable jacket as a complete assembly. | The stated range should cover the minimum and maximum temperatures expected during operation, storage and installation. | Product datasheet listing operating temperature, sealing material and test conditions. | High |
| Strain Relief | Determine how the gland resists cable pull, twisting and vibration after installation. | The clamping mechanism should grip the cable jacket without cutting, crushing or allowing the cable to move under the specified load. | Mechanical test data, pull-out test method, installation instructions and cable compatibility list. | High |
| Armoured Cable Capability | For armoured cables, verify compatibility with armour type, armour diameter and required electrical bonding arrangement. | The selected gland should provide correct mechanical retention, environmental sealing and armour termination for the cable construction. | Armoured-cable installation guide, armour range chart and bonding or continuity test information. | Critical |
| Electrical Continuity | Assess whether the metal gland can provide a reliable earth or screen connection where required by the installation design. | Continuity performance should be verified for the intended cable type, armour arrangement and installation torque. | Electrical continuity test procedure, resistance results and grounding application notes. | High |
| Sealing Material | Check the elastomer type and its resistance to oil, fuel, ultraviolet exposure, cleaning agents and other operating chemicals. | The sealing compound should be selected for the actual environment; material compatibility should not be assumed from the IP rating alone. | Seal material declaration, chemical-resistance chart and temperature-performance data. | High |
| Quality Management | Review the manufacturer's production controls, inspection procedures, traceability and handling of nonconforming products. | A documented quality-management system, incoming-material checks and final dimensional inspection reduce batch-to-batch variation. | Current quality certificate, inspection plan, sample inspection report and corrective-action procedure. | High |
| Product Traceability | Check whether batches, raw materials and inspection records can be traced throughout production and delivery. | Each shipment should be identifiable by a production lot or date code linked to inspection and material records. | Lot-number example, certificate-of-conformity template and packaging identification method. | Medium |
| Customization Capability | Evaluate the ability to supply non-standard thread lengths, sealing ranges, materials, colours, protective caps or special packing. | Custom designs should be supported by controlled drawings, sample approval and documented change management. | Engineering drawing process, prototype approval record and customization lead-time statement. | Medium |
| Testing and Sampling | Determine whether pre-production samples and first-article inspections are available before approving regular supply. | Samples should be tested for dimensions, thread fit, sealing, clamping and the application-specific environmental requirements. | Sample inspection checklist, first-article report and agreed acceptance criteria. | High |
| Documentation Quality | Review the clarity and completeness of drawings, datasheets, installation instructions and compliance declarations. | Documents should state dimensions, tolerances, cable range, torque values, sealing limits, materials and applicable standards. | Controlled technical documentation with revision number, issue date and product reference. | High |
| Supply and Packaging | Assess production capacity, minimum order quantity, delivery planning and protection against thread or seal damage in transit. | The supplier should provide a realistic production schedule, secure packaging and a replenishment plan for repeat orders. | Capacity statement, packaging specification, delivery performance records and order-planning process. | Medium |
| Total Cost of Ownership | Compare unit price together with installation time, rejected parts, tooling, freight, testing and warranty exposure. | The lowest unit price should not be selected if inadequate sealing, inconsistent threads or poor documentation create higher installation and maintenance costs. | Itemized quotation, warranty terms, sample evaluation results and landed-cost comparison. | Medium |