Translate the following abbreviations and Stone Wall Constructions

Translate from Russian into English. Use the proper grammar rules and the prompting words in brackets.

Таблица неисправностей насоса

Неисправность	Причина	Устранение
1. Насос не создает требуемого вакуума при заглушенном (blanked off) всасывающем патрубке (sucker)	a) Повреждение клапана b) Газобалластный клапан неплотный c) Запас масла недостаточный	a) Клапан сменить b) Газобалластный клапан проверить c) Запас масла пополнить
2. Сильный шум при работе	a) Повреждение клапана b) Повреждение подшипника c) Плохое состояние смазки, вследствие сильного загрязнения	a) Клапан сменить b) Подшипник (bearing) сменить c) Промывка насоса или демонтаж (dismantling) и чистка
3. Насос не вращается	Сильное загрязнение насоса повело к заеданию подшипников (seizing of bearing), золотников (valve) или поворотных плунжеров (rotary ramming pistons)	a) Насос демонтировать b) Подшипники сменить c) Золотники и плунжеры дополнительно обработать или заменить на новые

19. Read the text “Pump Accessories”. Pay attention to the abbreviations, and Stone Wall Constructions. Summarize the text.

For small pumps the range of general accessories includes inlet and exhaust filters, traps and catch-pots to handle chemicals and liquids, oil treatment kits (экипировка), vibration isolators. Large oil-sealed pump accessories cover inlet and exhaust traps and filters, oil pressure monitoring and filtration devices, pump temperature controls and vibration isolators.

Mechanical booster and rotary pumps also feature high-efficiency inlet filters to trap dust and particulates, mineral and synthetic oil filters, liquid and chemical traps, and a wide selection of exhaust management systems.

Turbo-molecular STP type pumps can be fitted with an optional inlet vibration isolator. For vapor pumps, accessories include thermal snap-switches, baffles, traps and special isolation valves. For HT pumps we also offer a thermal probe to measure the pump temperature, a heat shield for the pump base and an inlet baffle to reduce backstreaming.

Accessories for leak detectors include gas spray, quartz and powder reference leaks, trolleys, communications connectors and extension leads.

STP is an abbreviation from the standard temperature and pressure.

HT = high tension; STP = Standard Temperature and Pressure.

inlet filter filtration device isolation valves

exhaust filter pump temperature control heat shield

oil treatment kits oil filter leak detectors

vibration isolator exhaust management system gas spray

exhaust trap inlet vibration isolator pump base

oil pressure monitoring vapor pump

21. Read about some pumps’ features and benefits. Pay attention to the suffixes in the words, describing the pumps. Using the descriptive words, try to persuade the customers to buy the pumps.

1. Turbo-molecular Pumping Systems	produce high vacuum, the most reliable, cost-effective, portable, fast-starting
2. Turbo Pumps	maximize the throughput, weight is minimized, highly reliable, no oil, no contamination, simple and space-saving configuration, stresses on materials and bearings are reduced
3. Ion Pumps	shipped while under vacuum, wide range of pumping speeds, optimized element cells, ceramic insulators for long pump life
4. Diffusion Pumps	high pumping speeds, high throughput, high fore-pressure tolerance, low ultimate pressure, long-term reliability
5. Rotary Vane Pumps	ensure high pumping stability for light gases, low noise, long operating life, dual staged, vent device, built-in oil shield, gas-ballast valve, forced-air ventilation, noisy, messy, require regular expensive maintenance
6. Dry Scroll Pumps	delivers low ultimate pressure at high speed, oil-free, durable, reliable, easy to maintain

22. Study the prompts to the Vacuum/Pressure Pumps Selection and make their advertisement in small dialogues of your own.

Дата добавления: 2014-12-26