型号, 功率, 转速: common inscriptions on a Chinese nameplate
型号 is the model, 功率 is power, 转速 is speed, 电压 is voltage, 电流 is current, 出厂编号 is the serial number. The numbers and Latin codes on a Chinese nameplate are the same as on any other: kW, V, A, IP55. The characters only label the lines. Below is a table of common inscriptions with their English meaning.
Updated
Contents
On a Chinese nameplate the characters label the lines, while the values themselves are written in digits and Latin letters: kW, V, A, Hz, IP55, F. So to select a replacement it is usually enough to understand the labels. The most common: 型号 is the model, 功率 is power, 转速 is speed, 电压 is voltage, 电流 is current, 频率 is frequency, 出厂编号 is the serial number, 出厂日期 is the date of manufacture. The word 额定 before any line means "rated". Below is a table of inscriptions by group, with the English meaning.
General lines
| Inscription | Reading | In English |
|---|---|---|
| 型号 | xínghào | model, type |
| 额定 | édìng | rated (prefix) |
| 编号 | biānhào | number |
| 出厂编号 | chūchǎng biānhào | serial number |
| 出厂日期 | chūchǎng rìqī | date of manufacture (release date) |
| 生产日期 | shēngchǎn rìqī | production date |
| 重量 | zhòngliàng | weight, kg; the plate may also say 质量 (mass) |
| 执行标准 | zhíxíng biāozhǔn | standard the item is made to |
| 制造商, 制造厂 | zhìzàoshāng, zhìzàochǎng | manufacturer, manufacturing plant |
| 有限公司 | yǒuxiàn gōngsī | Co., Ltd., limited liability company |
| 地址 | dìzhǐ | address |
| 电话 | diànhuà | telephone |
| 中国制造 | Zhōngguó zhìzào | made in China |
Electric motor
| Inscription | Reading | In English |
|---|---|---|
| 三相异步电动机 | sānxiàng yìbù diàndòngjī | three-phase asynchronous (induction) motor |
| 功率, 额定功率 | gōnglǜ, édìng gōnglǜ | power, rated power |
| 转速, 额定转速 | zhuànsù, édìng zhuànsù | speed, rpm |
| 电压 | diànyā | voltage |
| 电流 | diànliú | current |
| 频率 | pínlǜ | frequency |
| 接法 | jiēfǎ | connection (Δ or Y) |
| 防护等级 | fánghù děngjí | protection rating (IP) |
| 绝缘等级 | juéyuán děngjí | insulation class |
| 工作制 | gōngzuòzhì | duty type (S1, S2…) |
| 效率 | xiàolǜ | efficiency |
| 功率因数 | gōnglǜ yīnshù | power factor, cos φ |
| 噪声 | zàoshēng | noise, dB |
| 轴承 | zhóuchéng | bearing |
The connection is written with symbols: △ is delta, Y is star. Sometimes in words: 三角形 and 星形.
Gearbox
| Inscription | Reading | In English |
|---|---|---|
| 减速机, 减速器 | jiǎnsùjī, jiǎnsùqì | gearbox |
| 减速比, 速比, 传动比 | jiǎnsùbǐ, sùbǐ, chuándòngbǐ | gear ratio; 传动比 is the standard term |
| 输出扭矩, 输出转矩 | shūchū niǔjǔ, shūchū zhuǎnjǔ | output torque, N·m; 转矩 is the standard term |
| 输入功率 | shūrù gōnglǜ | input power |
Pumps and hydraulics
| Inscription | Reading | In English |
|---|---|---|
| 流量 | liúliàng | flow |
| 扬程 | yángchéng | head, m |
| 压力, 额定压力 | yālì, édìng yālì | pressure, rated pressure |
| 排量 | páiliàng | displacement |
| 汽蚀余量 | qìshí yúliàng | net positive suction head, NPSH |
| (公称)口径 | (gōngchēng) kǒujìng | nominal bore of the port, DN (e.g. DN150) |
| 液压泵 | yèyābèng | hydraulic pump |
| 油泵 | yóubèng | oil pump; colloquially also a hydraulic pump |
| 叶片泵 | yèpiànbèng | vane pump |
| 齿轮泵 | chǐlúnbèng | gear pump |
| 柱塞泵 | zhùsāibèng | plunger (piston) pump |
| 泥浆泵 | níjiāngbèng | mud pump (drilling mud, sludge) |
| 渣浆泵 | zhājiāngbèng | slurry pump (slurry with solid particles) |
| 真空泵 | zhēnkōngbèng | vacuum pump |
| 罗茨泵, 罗茨真空泵, 罗茨鼓风机 | luócíbèng, luócí zhēnkōngbèng, luócí gǔfēngjī | Roots pump, Roots vacuum pump, Roots blower; 罗茨 alone is not written on a plate |
Boilers
| Inscription | Reading | In English |
|---|---|---|
| 额定蒸发量 | édìng zhēngfāliàng | rated steam output (evaporation capacity), t/h |
| 额定蒸汽压力 | édìng zhēngqì yālì | rated steam pressure |
| 额定蒸汽温度 | édìng zhēngqì wēndù | rated steam temperature (superheated steam boiler), °C |
| 额定出水温度 | édìng chūshuǐ wēndù | rated outlet water temperature (hot water boiler), °C |
Documents
| Inscription | Reading | In English |
|---|---|---|
| 合格证, 产品合格证 | hégézhèng | factory inspection pass certificate: the plant confirms the item passed its quality control; not a certificate of conformity |
| 生产许可证 | shēngchǎn xǔkězhèng | production license |
| 防爆 | fángbào | explosion-proof version, often marked Ex on the plate |
How reliable the translation is
We checked each inscription against the CC-CEDICT dictionary and against Chinese texts on nameplates, pumps and gearboxes. The words in the first two tables have two independent confirmations: model, power, rated power and speed, voltage, current, frequency, connection, protection rating, insulation class, duty type, efficiency, power factor, weight. The words 减速器, 扬程, 罗茨 are confirmed by Chinese Wikipedia. For 汽蚀余量, 蒸发量, 防爆, 速比 only one source was found, or only the meanings of the separate characters: the translation is given by sense and industry practice. The English column was compiled without a native speaker of Chinese and goes through review before publication.
合格证 on a Chinese item is a document of the plant itself saying that the item has passed its control. It is not an Uzbek certificate of conformity and does not replace one.
How to use the table
- Photograph the whole nameplate, straight on and without glare.
- Find the lines 型号, 功率, 转速, 电压, 出厂编号: they are the basis of any request.
- Copy the numbers and Latin letters as they are: IP55, F, S1, 380V, △.
- If the nameplate has characters that are not in the table, send the photo: we will translate the line rather than guess.
How we do it
- From a photo of a Chinese nameplate we find the manufacturer and the model, or an equivalent replacement.
- If a line on the nameplate is illegible or unclear, we clarify it with the plant rather than translate by guesswork.
- We send what we find before the order: the nameplate of the new part and its characteristics in English.
What this article relies on
Below are the documents and materials we refer to, so that you can check what is said for yourself.
Reference materials
- MDBG Chinese Dictionary (CC-CEDICT), entries 型号, 功率, 转速, 电压, 电流, 频率, 效率, 重量, 编号, 流量, 压力, 排量, 口径, 轴承, 合格证, 真空泵, 油泵, 中国制造 and othersmdbg.net ↗
- Baidu 爱采购. Article on motor nameplate parametersb2bwiki.baidu.com ↗
- Sina. Article on the motor nameplatet.cj.sina.com.cn ↗
- Wikipedia (Chinese). 泵 (pumps: 扬程, 流量, 齿轮泵, 柱塞泵, 罗茨泵)zh.wikipedia.org ↗
- Wikipedia (Chinese). 减速器zh.wikipedia.org ↗
- Maigoo. Definition of boiler steam output (蒸发量)maigoo.com ↗
- Zhuaniao Dictionary. NPSHdict.zhuaniao.com ↗
- Wikipedia (English). Rating plateen.wikipedia.org ↗
- TAMINOTA catalog: TMN-EM-1K5, TMN-RD-02, TMN-HP-50 — nameplate data.
