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This standard specifies the structural type, basic parameters, technical requirements, test methods, inspection rules and markings, packaging, storage, etc. of beam pumping units for the petroleum and natural gas industry. It also provides relevant information such as installation dimensions and matching dimensions of vulnerable parts for beam pumping units. This standard is applicable to the design, manufacturing, and inspection of beam pumping units. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 2828.1 Sampling Procedures for Inspection by Attributes: Part 1: Sampling Plans for Batch Inspection Retrieved by Acceptance Quality Limit (AQL) GB/T 3480.5 Calculation of Load Carrying Capacity of Spur and Helical Gears Part 5; Strength and Quality of Materials GB/T 84232008 Petroleum Drilling and Production Equipment and Special Tubing Vocabulary GB/T10095 (All Parts) Accuracy System for Instantaneous Cylindrical Gears GB/T13306 Label GB/T 13799 Calculation Method for Load Carrying Capacity of Double Wing Arc Cylindrical Gears GB/T15753 Accuracy of Arc Cylindrical Gears sY/T 6518 Recommended Practice for Installing Protective Devices for Pumping Units JB4708 Welding Procedure Evaluation of Steel Pressure Vessels AGMA 908-B89 Straight Gears The geometric factors for determining the Pitting Resistance and Bending Strength of Spur, Helical and Herring bone GearTeeth for helical and herringbone gears are defined in GB/T 8423 and the following terms and definitions apply to this document. 3.1 Polished rod load is the tensile force of the polished rod at the suspension rod of the suspension rope device, in kilonewtons (kN). [GB/T 8423-2008. Definition 14.6.4] 3.2 Rated polished rod load The rated tensile force of the polished rod at the suspension rod of the rope hanger, in kilonewtons (kN). [GB/T 8423-2008. Definition 14.6.5] 3.3 Maximum stroke of polished rod Adjust the stroke adjustment mechanism of the pumping unit to obtain the maximum displacement at the suspension rod of the rope hanger, in meters (m) 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 problems100% inspection 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
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