JB/T 53291-1999
High Pressure Boiler Feed Pump - Product Quality Grading
高压锅炉给水泵 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品的质量等级 → 4 试验与检验方法 → 5 抽样、评定方法 → 附录A Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods → Annex A
Scope
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for high pressure boiler feed pump products. This standard applies to high pressure boiler feed pumps.
本标准规定了高压锅炉给水泵产品的质量等级、试验与检验方法和抽样、评定方法。本标准适用于高压锅炉给水泵。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies of high pressure boiler feed pumps use this standard to evaluate product quality grades. They conduct tests and inspections based on the specified items and indicators to determine whether a product is qualified, first-class, or premium. This standard is crucial for ensuring the quality and reliability of high pressure boiler feed pumps.
高压锅炉给水泵的制造商和质检机构使用本标准来评定产品的质量等级。他们依据本标准中的考核项目和指标，对产品进行试验和检验，以确定其属于合格品、一等品还是优等品。该标准对于确保高压锅炉给水泵的质量和可靠性至关重要。
AI Summary AI generated
This standard JB/T 53291-1999 specifies the quality grading requirements for high pressure boiler feed pump products, including three grades: qualified, first-class, and premium. It details key assessment items (such as flow rate, head, efficiency, vibration, noise, etc.) along with their technical requirements and test/inspection methods, and defines sampling and evaluation procedures. Applicable to high pressure boiler feed pumps, the standard aims to ensure product performance and reliability through a unified quality grading system.
本标准JB/T 53291-1999规定了高压锅炉给水泵产品的质量分等要求，包括合格品、一等品和优等品三个等级。标准详细列出了主要考核项目（如流量、扬程、效率、振动、噪声等）及其技术要求与试验检验方法，并规定了抽样和评定方法。该标准适用于高压锅炉给水泵，旨在通过统一的质量分级标准，确保产品的性能和可靠性。
Key Sentences extracted from text
本标准规定了高压锅炉给水泵产品的质量等级、试验与检验方法和抽样、评定方法。
产品根据质量水平和使用价值分为合格品、一等品和优等品三个等级。
产品应符合JB/T 8059 和附录A（标准的附录）的规定，其中主要考核项目及要求应符合表1 的规定，评定产品质量等级的考核项目、指标和要求应符合表2 的规定。
批量产品应首先进行单个产品的质量等级评定，判定单个产品的质量等级应符合该等级全部考核项目的要求，否则按达到的最低一项指标定等。
采取抽样检查方法时，可按JB/T 8687 规定的合格判定数Ac（或A1、A2）和不合格判定数Re（或R1、R2）评定该批产品达到某一等级（合格品、一等品或优等品）。
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for high pressure boiler feed pump products.
Products are divided into three grades: qualified product, first-class product, and premium product, based on quality level and use value.
Products shall comply with the provisions of JB/T 8059 and Appendix A (normative appendix), where the main assessment items and requirements shall comply with the provisions of Table 1, and the assessment items, indicators and requirements for evaluating product quality grades shall comply with the provisions of Table 2.
For batch products, the quality grade of individual products shall first be evaluated; the quality grade of an individual product shall meet the requirements of all assessment items for that grade, otherwise it shall be graded according to the lowest indicator achieved.
When using the sampling inspection method, the batch of products can be evaluated as reaching a certain grade (qualified, first-class, or premium) according to the acceptance number Ac (or A1, A2) and rejection number Re (or R1, R2) specified in JB/T 8687.
Standard Timeline
Changes from replaced version:
- 删除了“千小时效率平均降低值”考核项目
- 将“流量、扬程、润滑油渗漏、清洁度、泵用材料、涂漆和外观及包装”主要考核项目及要求从表2中移出列入表1中
- Removed the assessment item 'average efficiency reduction per thousand hours'
- Moved the main assessment items and requirements for 'flow rate, head, lubricating oil leakage, cleanliness, pump materials, painting and appearance, and packaging' from Table 2 to Table 1