JB/T 53162-1999
Gate Valves - Product Quality Grading (Internal Use)
闸阀 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 gate valve products. This standard applies to gate valve products specified in GB/T 12232, GB/T 12234 and JB/T 7746.
本标准规定了闸阀产品的质量等级、试验与检验方法、抽样和评定方法。本标准适用于GB/T 12232、GB/T 12234 及JB/T 7746 规定的闸阀产品。
Normative References
Keywords
Application Summary AI generated
Gate valve manufacturers and quality inspection agencies use this standard to grade gate valve products into qualified, first-grade, and premium-grade levels. It defines key assessment items such as shell tests, seal tests, and static pressure life tests to ensure products meet required performance criteria. This standard is important for standardizing quality evaluation, improving product reliability, and enhancing market competitiveness.
闸阀制造商和质检机构使用本标准来评定闸阀产品的质量等级，包括合格品、一等品和优等品。它通过规定壳体试验、密封试验和静压寿命等关键考核项目，确保产品达到相应的性能要求。该标准对于统一闸阀质量评价、提升产品可靠性和市场竞争力具有重要意义。
AI Summary AI generated
This standard JB/T 53162-1999 specifies the quality grading requirements for gate valve products, classifying them into three grades: qualified, first-grade, and premium-grade. It covers assessment items such as shell tests, seal tests (liquid and gas), and static pressure life tests, providing detailed leakage rates, test pressures, and durations for both iron and steel gate valves. Additionally, it includes requirements for cavity cleanliness and casting quality, as well as sampling and evaluation methods. The standard applies to gate valve products covered by GB/T 12232, GB/T 12234, and JB/T 7746.
本标准JB/T 53162-1999规定了闸阀产品的质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准涵盖了壳体试验、密封试验（液体和气体）、静压寿命试验等考核项目，并针对铁制闸阀和钢制闸阀分别给出了详细的泄漏量、试验压力和持续时间等指标。此外，还规定了内腔清洁度和铸件质量的要求，以及抽样和评定方法。该标准适用于GB/T 12232、GB/T 12234和JB/T 7746涵盖的闸阀产品。
Key Sentences extracted from text
本标准规定了闸阀产品的质量等级、试验与检验方法、抽样和评定方法。
闸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。
铁制闸阀的壳体试验、液体密封试验和气体密封试验按GB/T 13927的规定进行。
静压寿命试验应从已抽样的台数中任选1台。
合格品、一等品、优等品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 gate valve products.
Gate valve products are divided into three grades: qualified product, first-grade product, and premium-grade product, based on their quality level and use value.
Shell test, liquid seal test and gas seal test for iron gate valves shall be carried out in accordance with GB/T 13927.
The static pressure life test shall be conducted on one unit selected from the sampled units.
Qualified product, first-grade product, and premium-grade 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，同时增加了内腔清洁度的考核
- 表1中增加了弹性密封闸阀一等品和优等品的静压寿命次数
- 表2中增加了上密封试验的考核
- 对钢制闸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, and added assessment of cavity cleanliness
- Added static pressure life cycle counts for elastic seal gate valves of first-grade and premium-grade in Table 1
- Added assessment of back seal test in Table 2
- Modified the leakage rate for gas seal performance test of steel gate valves
- Added requirements for driving devices and accessories