Thread specification |
Be commonly called |
Nominal |
Outer diameter (mm) |
Inner diameter (mm) |
G1/8 |
1 point |
DN6 |
9.5±0.2 |
8.8±0.2 |
G1/4 |
2 point |
DN8 |
12.5±0.3 |
11.5±0.3 |
G3/8 |
3 point |
DN10 |
16.2±0.3 |
15.3±0.3 |
G1/2 |
4 point |
DN15 |
20.3±0.3 |
19.5±0.3 |
G3/4 |
6 point |
DN20 |
25.7±0.5 |
24±0.5 |
G1 |
1 inch |
DN25 |
32.5±0.5 |
30.5±0.5 |
G1-1/4 |
1.2 inch |
DN32 |
41.3±0.5 |
39.5±0.5 |
G1-1/2 |
1.5 inch |
DN40 |
47.8±0.5 |
46.6±0.5 |
G2 |
2 inch |
DN50 |
59.6±0.5 |
56.6±0.5 |
The thread error does not affect the use within the range
Insert the gas pipe: insert the gas pipe into the pipe end of the connector, and the end face of the gas pipe smoothly passes through the stainless steel snap ring until the end face of the quick plug connector. At this time , the stainless
steel snap ring will firmly lock the gas pipe so that it is not easy to be pulled out
Pull out the air pipe:before pulling out the air pipe, push down the plastic inter-face and open the spring plate, so that the air pipe can be pulled out
(Note: please ensure that the air pressure in the trachea is zero before pulling
out the trachea)
Screw the connector into the air inlet and outlet thread of the cylinder with an inner
hexagon wrench or an outer hexagon wrench as shown in the above figure.
(Please refer to the following figure for the torque value)
Thread specification |
Tightening method |
Torque value |
M5 |
Tighten it by hand without tools |
1-1.5 |
G1/8 (1point) |
Screw it by hand and then use |
5-8 |
G1/4 (2point) |
6-9 |
|
G3/8 (3point) |
8-11 |
|
G1/2 (4point) |
12-16 |