Water pump inspection method:
1. Remove the pump body, impeller, and pump shaft, and check for any damage or cracks 2. Rotate the coupling or coupling by hand flexibly 3. Use a feeler gauge to measure whether the inner diameter of the sealing chamber meets the requirements 4. Apply a thin layer of grease to the outer ring of the bearing, then install the bearing into the casing, close the spindle, and add a little lubricating oil before use 5. After the assembly of the water pump, a static balance test must be conducted, and the results should meet the requirements of the specified values in the technical documents 6. Before installing the water pump, each component should be inspected and accepted. If any unqualified products are found, they must be treated according to relevant regulations before use 7. For liquid conveying equipment with directional requirements, flow guide devices should be installed according to design regulations; For vertically upward or horizontally flowing liquid conveying equipment, flow guide devices are not installed When the pipeline is long, it is advisable to set up intermediate hangers for segmented manufacturing, transportation, and lifting to avoid damaging parts and affecting assembly progress To ensure the normal operation of the water pump and reduce the degree of environmental pollution caused by vibration and noise, a muffler should be installed on the intake pipeline 10. The suction pipeline system of the centrifugal clean water pump must not have cavitation To ensure safe operation and long service life, it is recommended to choose a safety valve with self-locking function To prevent resonance of the pipeline caused by water hammer, an automatic exhaust valve should be installed at the highest position of the inlet pipe 13. Liquid level gauges can be equipped as needed
14. If using dry type self coupling decompression start, the selection can be based on actual operating conditions
15. If using electric actuator control, please indicate the model 16. The gap of this product has been adjusted before leaving the factory, and there is no need to adjust it again 17. Users should adjust according to the on-site situation 18. This series of products is manufactured according to relevant national standards 19. This product has been debugged before leaving the factory and does not require further adjustment by the user The rated head of this series of products is the indicator head
21. The traffic of this series is the indicator traffic
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China