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Рубрика:
69
igniter воспламенитель
wrench гаечный ключ
outfit агрегат, оборудование, принадлежности, набор
(приборов, инструментов)
pressure gauge манометр
leak течь, протечка, утечка
orifice отверстие
single-stage
(regulator)
однокамерный
flashback обратный удар пламени (проникающий в шланг
сварочной горелки)
20 Read the texts above more carefully and complete the sentences.
1. The most common devices for pressure reduction are … and …
2. Regulators control pressure and …
3. Regulators have two gauges: one is for indicating the cylinder pressure and
the other is for indicating …
4. Psig is an acronym from …
5. Psig is used to measure …
6. Valve leaks in regulators can be caused by …
7. A combination torch is a torch which can accept either welding tips or …
8. It is necessary to keep the tip orifices and passages clean and free of …
21 Look at the pictures of torches on pages 67-68 and tell about their
design.
Reading 5
22 Read the detailed instruction for Setting up the equipment for oxygas
welding and continue filling in the table below.
Instructions
(What should be done)
Precautions
(What shouldn’t be done)
When using fuel and oxygen tanks
they should be fastened securely to a
wall, a post or a portable cart in an
upright position.
An oxygen tank should never be
moved around without the valve cap
screwed in place.
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