JB/T 53251-1999
Oil field rotor-type heavy oil pump - Product quality grading (Internal use)
油田用转子式稠油泵 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量等级 → 4 质量等级指标 → 5 抽样 → 6 质量等级评定 → 7 检测方法 → 附录A → 附录B Foreword → 1 Scope → 2 Normative References → 3 Quality Grade → 4 Quality Grade Indicators → 5 Sampling → 6 Quality Grade Assessment → 7 Test Methods → Annex A → Annex B
Scope
This standard specifies the quality grades, quality grade indicators, sampling, quality grade assessment and test methods for oil field rotor-type heavy oil pumps (hereinafter referred to as pumps). This standard applies to rotor-type pumps conveying media with temperature ≤150°C and viscosity 0.1~10 Pa·s. The rated flow range is ≤400 m3/h, and the rated discharge pressure range is ≤5.0 MPa.
本标准规定了油田用转子式稠油泵（以下简称泵）产品的质量等级、质量等级指标、抽样、质量等级评定和检测方法。本标准适用于输送温度为≤150℃、粘度0.1~10 Pa·s 介质的转子式泵。其额定流量范围为≤400 m3/h，额定排出压力范围为≤5.0 MPa。
Normative References
Keywords
Application Summary AI generated
Oil field operators and pump manufacturers use this standard to classify and assess the quality grades of rotor-type heavy oil pumps. It helps users select pumps of appropriate grade based on indicators such as flow rate, efficiency, noise, and cleanliness. By defining clear quality tiers and test methods, the standard ensures reliability and consistency when pumping high-temperature, high-viscosity media in oil fields.
油田和泵制造企业使用这个标准来对转子式稠油泵进行质量等级划分和评定。它帮助用户根据泵的流量、效率、噪声、清洁度等指标选择合适等级的产品。该标准通过明确的质量分级和检测方法，保障了稠油泵在油田输送高温高粘度介质时的可靠性和一致性。
AI Summary AI generated
This standard JB/T 53251-1999 specifies the product quality grading requirements for oil field rotor-type heavy oil pumps, classifying pumps into three grades: qualified, first-class, and premium. It details specific indicators for each grade regarding flow rate, volumetric efficiency, pump efficiency, noise, lubricating oil temperature, safety valve set pressure, cleanliness, and replacement intervals of main components. The standard also defines sampling methods, quality grade assessment rules (including sampling inspection and 100% inspection), and test methods. It applies to rotor-type pumps conveying media with temperature ≤150°C and viscosity 0.1~10 Pa·s, with rated flow ≤400 m3/h and rated discharge pressure ≤5.0 MPa.
本标准JB/T 53251-1999规定了油田用转子式稠油泵的产品质量分等要求，将泵分为合格品、一等品和优等品三个等级。标准详细列出了各等级在流量、容积系数、泵效率、噪声、润滑油温度、安全阀起跳压力、清洁度及主要部件更换期等方面的具体指标。同时规定了抽样方法、质量等级评定规则（包括抽样检测和全数检测）以及检测方法。该标准适用于输送温度≤150℃、粘度0.1~10 Pa·s介质的转子式泵，额定流量≤400 m3/h，额定排出压力≤5.0 MPa。
Key Sentences extracted from text
本标准规定了油田用转子式稠油泵（以下简称泵）产品的质量等级、质量等级指标、抽样、质量等级评定和检测方法。
泵产品的综合质量分为合格品、一等品和优等品三个等级。
样品的各项质量指标全部达到本标准中某一等级的规定要求时，该样品才能评为该等级品，否则按其中某一项所达到的最低等级评定。
泵做抽样检测时，所有样品均达到某一等级时，该批泵才能评为该等级品，否则按其中某一样品的最低等级评定。
泵做全数逐台检测时，其中一等品率应达到80%以上，其余泵不低于合格品时，才能相应地评为一等品；优等品率应达到80%以上，其余泵不低于一等品时，才评为优等品。
This standard specifies the quality grades, quality grade indicators, sampling, quality grade assessment and test methods for oil field rotor-type heavy oil pumps (hereinafter referred to as pumps).
The comprehensive quality of pump products is divided into three grades: qualified product, first-class product, and premium product.
Only when all quality indicators of a sample meet the requirements of a certain grade in this standard can the sample be rated as that grade; otherwise, it is rated according to the lowest grade achieved by any one indicator.
When pumps are tested by sampling, only if all samples meet a certain grade can the batch be rated as that grade; otherwise, it is rated according to the lowest grade of any sample.
When pumps are tested 100% individually, only if the first-class product rate reaches above 80% and the remaining pumps are not lower than qualified product can the batch be rated as first-class; only if the premium product rate reaches above 80% and the remaining pumps are not lower than first-class can the batch be rated as premium.
Standard Timeline
Changes from replaced version:
- 将质量等级指标中流量'合格品、一等品（95~108）%Qr，优等品（100~103）%Qr'改为'合格品、一等品（95~110）%Qr，优等品（100~105）%Qr'
- 将质量等级指标中噪声'合格品、一等品85 dB（A），优等品83 dB（A）'改为按压力等级和功率等级分档列出噪声值
- 在质量等级指标中，增加了'润滑油油池油温度、安全阀起跳压力、清洁度'三项指标的规定
- 将抽样中'从不少于10 台的库存产品中抽取两台'改为按批量多少抽取样品
- 在质量等级评定中，增加了'抽样检测泵的质量等级评定'和'全数检测泵的质量等级评定'
- Changed the flow rate in quality grade indicators from 'qualified and first-class (95~108)%Qr, premium (100~103)%Qr' to 'qualified and first-class (95~110)%Qr, premium (100~105)%Qr'
- Changed the noise in quality grade indicators from 'qualified and first-class 85 dB(A), premium 83 dB(A)' to listing noise values by pressure grade and power grade
- Added three indicator requirements in quality grade indicators: 'lubricating oil sump temperature, safety valve set pressure, cleanliness'
- Changed sampling from 'draw two units from stock of no less than 10 units' to drawing samples based on batch size
- Added 'quality grade assessment of pumps by sampling inspection' and 'quality grade assessment of pumps by 100% inspection' in quality grade assessment