Air-tightness testers for self-rescuers
Type ZJ-1
Type ZJ-2

Type
Usage
Working pressure(kPa)
Common grade
High-pressure grade
Accuracy of
manometer
 (Grade)
Testing Time(s)
Dimension
LWH
(mm)
Weight(kg)
ZJ-1
Testing all types of coal mine filter self-rescuers
5.30.3
2.5
15
300290330
11
ZJ-2
Testing all types of coal mine chermical oxygen self-rescuers
5.30.3
2.5
15
380300460
20
ZJ-2A
Testing all small types of coal mine chemical oxygen self-rescuers
5.30.3
2.5
15
330310370
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
5.30.3
13.3414
2.5
15
380300480
22

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