Type

Usage

Working pressure(kPa)

Common grade High-pressure grade

Accuracy of
manometer
 (Grade)

Testing Time(s)

Dimension
L×W×H
(mm)

Weight(kg)

ZJ-1

Testing all types of coal mine filter self-rescuers

2.5

15

300×290×330

11

ZJ-2

Testing all types of coal mine chermical oxygen self-rescuers

2.5

15

380×300×460

20

ZJ-2A

Testing all small types of coal mine chemical oxygen self-rescuers

2.5

15

330×310×370

15

ZJ-2B

Used in China Coal Mine Explosion-proof and Safety Products Quality Supervision and Test Center,self-rescuer factories,its repairing factories and so on,testing high-pressure air-tightness for self-rescuers

2.5

15

380×300×480

22