JB/T 53155-1999
Product Quality Grading for Low Temperature Globe Valves and Throttle Valves for Air Separation Equipment (Internal Use)
空气分离设备用低温截止阀和节流阀 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品质量分等 → 4 试验方法 → 5 抽样和评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grading → 4 Test Methods → 5 Sampling and Evaluation Methods
Scope
This standard specifies the product quality grading, test methods, sampling and evaluation methods for low temperature globe valves and throttle valves for air separation equipment. This standard applies to the product quality grading of low temperature globe valves and throttle valves as specified in JB/T 9081-1999 "Low Temperature Globe Valves and Throttle Valves for Air Separation Equipment - Technical Conditions".
本标准规定了空气分离设备用低温截止阀和节流阀的产品质量分等、试验方法及抽样、评定方法。本标准适用于JB/T 9081—1999《空气分离设备用低温截止阀和节流阀 技术条件》规定的低温截止阀和节流阀的产品质量分等。
Normative References
Keywords
Application Summary AI generated
Manufacturers and users of air separation equipment use this standard to grade the quality of low temperature globe valves and throttle valves. It sets specific criteria for qualified, first-class, and premium products, ensuring valves meet requirements for airtightness, durability, and reliability. This standard is important for improving product quality and regulating the market.
空气分离设备制造商和用户使用该标准来评定低温截止阀和节流阀的质量等级。它通过设定合格品、一等品和优等品的具体指标，帮助确保阀门在气密性、寿命和可靠性方面满足不同使用要求。该标准对提升产品质量、规范市场秩序具有重要意义。
AI Summary AI generated
This standard specifies product quality grading, test methods, and sampling/evaluation procedures for low temperature globe valves and throttle valves used in air separation equipment. Products are classified into three grades: qualified, first-class, and premium, each with distinct requirements for airtightness, durability, and other performance indicators. The standard applies to valves covered by JB/T 9081 and ensures quality through rigorous testing and sampling.
本标准规定了空气分离设备用低温截止阀和节流阀的产品质量分等、试验方法及抽样评定方法。产品按质量水平分为合格品、一等品和优等品三个等级，每个等级对应不同的气密性、寿命等指标。标准适用于JB/T 9081规定的阀门，通过严格的试验和抽样程序确保产品质量。
Key Sentences extracted from text
本标准规定了空气分离设备用低温截止阀和节流阀的产品质量分等、试验方法及抽样、评定方法。
空气分离设备用低温截止阀和节流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。
产品除应符合JB/T 9081 的规定外，各考核项目的质量等级指标必须达到表1 中合格品的规定。
评定产品质量等级，必须符合该等级全部考核项目的质量指标，根据抽样结果定出质量等级。
当检测项目的质量等级指标不同时，按最低一项指标定等级，缺项不能定等级。
This standard specifies the product quality grading, test methods, sampling and evaluation methods for low temperature globe valves and throttle valves for air separation equipment.
Low temperature globe valves and throttle valves for air separation equipment are divided into three grades: qualified product, first-class product and premium product according to their quality level and use value.
In addition to complying with the provisions of JB/T 9081, the quality grade indicators of each assessment item must meet the provisions of qualified products in Table 1.
To evaluate the product quality grade, it must meet all the quality indicators of the assessment items for that grade, and the quality grade shall be determined based on the sampling results.
When the quality grade indicators of the test items are different, the grade shall be determined by the lowest indicator, and missing items cannot be graded.
Standard Timeline
Changes from replaced version:
- 对原标准作了编辑性修改
- 各项产品质量分等指标没有变化
- 对部分条文作了修改
- Editorial modifications were made to the original standard
- The product quality grading indicators remained unchanged
- Some clauses were modified