Maintenance and repair of air breathing apparatus

1 Daily routine inspection and maintenance

1.1 Airtightness check of the whole machine

Close the intake valve of the air respirator supply valve, open the bottle head valve, and then close the bottle head valve after 2 minutes. The pressure gauge drop value within 5 minutes.......

The working principle and application scope of gear oil pump

The gear oil pump is a horizontal slewing gear pump, which is divided into two types: a motor driven type and a diesel engine. It is suitable for conveying various kinds of oil and other lubricious medium liquids, such as heavy oil, petroleum, etc. The liquid .......