JB/T 53174-1999
Globe Valve Product Quality Grading (Internal Use)
截止阀 产品质量分等（内部使用）
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 抽样和评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods
Scope
This standard specifies the quality grades, test and inspection methods, sampling and evaluation methods for globe valve products. This standard applies to globe valve products specified in GB/T 12233, GB/T 12235, JB/T 7746 and JB/T 7747.
本标准规定了截止阀产品的质量等级、试验与检验方法、抽样和评定方法。本标准适用于GB/T 12233、GB/T 12235、JB/T 7746 及JB/T 7747 规定的截止阀产品。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to grade and test globe valve products. It helps determine whether products meet qualified, first-grade, or superior levels, ensuring shell strength, sealing performance, and durability. This standard is important for improving the quality and reliability of globe valves.
截止阀制造商和质检机构使用本标准来对产品进行质量分级和检验。它帮助确定产品是否达到合格品、一等品或优等品等级，确保阀门在壳体强度、密封性能和寿命方面满足要求。该标准对提升截止阀产品质量和可靠性具有重要意义。
AI Summary AI generated
This standard specifies quality grades (qualified, first-grade, superior), test and inspection methods, sampling and evaluation methods for globe valve products. It applies to iron and steel globe valves. Key assessment items include shell test, seal test, static pressure life test, and cavity cleanliness. Different grades have varying requirements for test pressure, duration, and leakage. The standard references multiple related standards for testing procedures.
本标准规定了截止阀产品的质量等级（合格品、一等品、优等品）、试验与检验方法、抽样和评定方法。适用于铁制和钢制截止阀。主要考核项目包括壳体试验、密封试验、静压寿命试验和内腔清洁度。各等级对试验压力、持续时间、泄漏量等有不同要求。标准还引用了多项相关标准作为试验依据。
Key Sentences extracted from text
本标准规定了截止阀产品的质量等级、试验与检验方法、抽样和评定方法。
截止阀产品根据其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。
铁制截止阀的壳体试验、液体密封试验和气体密封试验按GB/T 13927的规定进行。
钢制截止阀的壳体试验、上密封试验、液体密封试验和气体密封试验按JB/T 9092的规定进行。
合格品、一等品、优等品的检测结果应达到相应等级的规定，不允许再次抽样。
This standard specifies the quality grades, test and inspection methods, sampling and evaluation methods for globe valve products.
Globe valve products are divided into three grades: qualified product, first-grade product, and superior product, based on their quality level and use value.
Shell test, liquid seal test and gas seal test for iron globe valves shall be carried out in accordance with GB/T 13927.
Shell test, back seal test, liquid seal test and gas seal test for steel globe valves shall be carried out in accordance with JB/T 9092.
The test results for qualified product, first-grade product, and superior product shall meet the requirements of the corresponding grade, and re-sampling is not allowed.
Standard Timeline
Changes from replaced version:
- 增加了前言，在引用标准中增加了引言
- 对表1和表2考核项目壳体试验、液体密封试验和气体密封试验的压力、持续时间及要求做了相应补充
- 增加了内腔清洁度的考核
- 表2中增加了上密封试验的考核
- 对钢制截止阀气体密封性能试验泄漏量进行了修改
- 增加了驱动装置和附件的要求
- Added a foreword and an introduction in the normative references
- Supplemented the pressure, duration and requirements for shell test, liquid seal test and gas seal test in Tables 1 and 2
- Added assessment of cavity cleanliness
- Added back seal test assessment in Table 2
- Modified the leakage amount for gas seal performance test of steel globe valves
- Added requirements for driving devices and accessories