JB/T 53217-1999
Oxygen Cylinder Valve - Product Quality Grading
氧气瓶阀 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品质量等级 → 4 试验方法 → 5 抽样和等级评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test Methods → 5 Sampling and Grade Evaluation Methods
Scope
This standard specifies the quality grades, test methods, sampling, and grade evaluation methods for oxygen cylinder valve products. This standard applies to oxygen cylinder valves used on refillable gas cylinders with a nominal working pressure not exceeding 30.0 MPa.
本标准规定了氧气瓶阀产品的质量等级、试验方法、抽样和等级评定方法。本标准适用于公称工作压力不大于30.0MPa，可重复充气瓶上使用的氧气瓶阀。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to grade and test oxygen cylinder valves. By defining specific criteria for qualified, first-class, and premium products, it ensures safety and reliability. This standard is crucial for preventing leaks and failures in high-pressure oxygen applications.
氧气瓶阀的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。通过规定合格品、一等品和优等品的具体考核指标，本标准帮助确保氧气瓶阀的安全性和可靠性。它对于保障气瓶使用安全、促进产品质量提升具有重要意义。
AI Summary AI generated
This standard JB/T 53217-1999 is a revision of the product quality grading for oxygen cylinder valves, replacing the 1994 version. It classifies oxygen cylinder valves into three grades: qualified, first-class, and premium, specifying detailed assessment criteria for torque, leak tightness, pressure strength, vibration resistance, temperature resistance, and durability. The standard also defines test methods, sampling rules, and grade evaluation procedures, applicable to valves on refillable cylinders with nominal working pressure up to 30.0 MPa. A key technical change is the reduction of the pressure strength test pressure from 2PN to 1.6PN.
本标准JB/T 53217-1999是对氧气瓶阀产品质量分等的修订，替代了1994年版本。标准将氧气瓶阀分为合格品、一等品和优等品三个等级，并规定了各等级在启闭力矩、气密性、耐压强度、耐振性、耐温性和耐用性等方面的具体考核指标。标准还明确了试验方法、抽样规则和等级评定方法，适用于公称工作压力不超过30.0MPa的可重复充气瓶用氧气瓶阀。主要技术变化包括将耐压强度试验压力由2PN改为1.6PN。
Key Sentences extracted from text
本标准规定了氧气瓶阀产品的质量等级、试验方法、抽样和等级评定方法。
本标准适用于公称工作压力不大于30.0MPa，可重复充气瓶上使用的氧气瓶阀。
氧气瓶阀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。
氧气瓶阀除符合GB 10877规定外，各等级的考核项目和指标要求还应符合表1的规定。
被检样品可以从生产厂质检部门检验合格的库存产品中随机抽取，或从已供给用户但未使用并且保持出厂状态的产品中随机抽取。
This standard specifies the quality grades, test methods, sampling, and grade evaluation methods for oxygen cylinder valve products.
This standard applies to oxygen cylinder valves used on refillable gas cylinders with a nominal working pressure not exceeding 30.0 MPa.
Oxygen cylinder valves are divided into three grades: qualified product, first-class product, and premium product, based on quality level and use value.
In addition to complying with GB 10877, the assessment items and indicator requirements for each grade shall also comply with the provisions of Table 1.
The inspected samples may be randomly selected from the inventory products that have passed the inspection by the manufacturer's quality inspection department, or from products that have been supplied to users but are unused and maintain the factory condition.
Standard Timeline
Changes from replaced version:
- 耐压强度试验的压力由2PN改为1.6PN
- The pressure for the pressure strength test was changed from 2PN to 1.6PN