1.Quick pneumatic tube fiting forpneumatic tube systems.
2.Wide range of tube fiting models to meet all your needs in pneumatic tube systems
3.Even after installation,the direction of the tube can be changed freely.
4.Nickel-Plated metal body ensures anti-corrosion and anti contar mination.
5.All R and NPT threads are precoats sealant.
6.All cylindrical threads are standard with O-ring seals.
Ordering Code


SPECIFICATIONS
45° elbow: KQ2K(sealed with gasket)


| Suitable for the outer diameter of the pipe (mm) |
Model | Connection thread (M) |
H (Hexagonal opposite sides) |
ΦD1note | ΦD2 | L1 | L2 | A | M | Weight (g) |
| Φ4 | KQ2K04-M5口 | M5x0.8 | 7 | 8.8 | 7 | 14.4 | 13.1 | 22.8 | 13.3 | 3 |
| KQ2K04-M6口 | M6x1.0 | 8 | 8.8 | 7 | 14.4 | 14.1 | 22.8 | 13.3 | 4.1 | |
| Φ6 | KQ2K06-M5口 | M5x0.8 | 7 | 10.7 | 7 | 14.4 | 17 | 27.4 | 13.3 | 3.5 |
| KQ2K06-M6口 |
M6x1.0 | 8 | 10.7 | 7 | 14.4 | 18 | 27.4 | 13.3 | 4.5 |
口Mark/A: Brass, N: Brass+Electroless nickel plating
note: ΦD1 is the maximum diameter
45° elbow: KQ2K(sealant)


| Suitable for the outer diameter of the pipe (mm) |
Connection thread (R) |
Model | H (Hexagonal opposite sides) |
ΦD1 | ΦD2 | L1 | L2 | A | M | Weight (g) |
| Φ4 | 1/8 | KQ2K04-01口S | 10 | 8.8 | 10 | 14.4 | 12.7 | 22.3 | 13.3 | 4.6 |
| 1/4 | KQ2K04-02口S | 14 | 8.8 | 10 | 14.4 | 17.2 | 25.2 | 13.3 | 14.1 | |
| Φ6 | 1/8 | KQ2K06-01口S | 10 |
10.7 | 10 | 14.7 | 14.8 | 25.3 | 13.3 | 5 |
| 1/4 | KQ2K06-02口S | 14 | 10.7 | 10 | 14.7 | 19.3 | 28.2 | 13.3 | 14.5 | |
| 3/8 | KQ2K06-03口S | 17 | 10.7 | 10 | 14.7 | 20.6 | 29.1 | 13.3 | 26.2 | |
| Φ8 | 1/8 | KQ2K08-01口S | 10 | 13.6 | 10 | 16 | 15.7 | 28 | 14.2 | 6 |
| 1/4 | KQ2K08-02口S | 14 | 13.6 | 12 | 16 | 22.4 | 33.1 | 14.2 | 17.5 | |
| 3/8 | KQ2K08-03口S | 17 | 13.6 | 12 | 16 | 22.5 | 32.8 | 14.2 | 24.5 | |
| Φ10 |
1/8 | KQ2K10-01口S |
12 | 16.2 | 12 | 18.2 | 21.5 | 36.2 | 15.6 | 11.1 |
| 1/4 | KQ2K10-02口S | 17 | 16.2 | 17 | 17.6 | 29.1 | 41.8 | 15.6 | 21.8 | |
| 3/8 | KQ2K10-03口S | 17 | 16.2 | 17 | 17.6 | 24.3 | 36.6 | 15.6 | 21.7 | |
| 1/2 | KQ2K10-04口S | 22 | 16.2 | 17 | 17.6 | 28.3 | 39.3 | 15.6 | 44.1 | |
| Φ12 | 1/4 | KQ2K12-02口S | 17 | 19 | 17 | 19.4 | 29 | 43.8 | 17 | 23.3 |
| 3/8 | KQ2K12-03口S | 17 | 19 | 17 | 19.4 | 24.2 | 38.6 | 17 | 23.2 | |
| 1/2 | KQ2K12-04口S | 22 | 19 | 17 | 19.4 | 28.2 | 41.3 | 17 | 45.7 | |
| Φ16 | 1/4 | KQ2K16-02口S | 17 | 23.8 | 17 | 24.3 | 29.6 | 49.2 | 20.6 | 27.7 |
| 3/8 | KQ2K16-03口S | 22 | 23.8 | 21 | 23.8 | 31.4 | 50.2 | 20.6 | 39.2 | |
| 1/2 | KQ2K16-04口S | 22 | 23.8 | 21 | 23.8 | 30.1 | 47.6 | 20.6 | 42.9 |
Straight connector: Y-KQ2H(Sealing ring seal)


| Suitable for the outer diameter of the pipe (mm) |
Connection thread (R) |
Model | H (Hexagonal opposite sides) |
ΦD | L | A | M | Weight (g) |
| Φ3.2 | 1/8 | Y-KQ2H23-01口P | 12 | 6.7 | 14.1 | 8.9 | 13.3 | 6.3 |
| 1/4 | Y-KQ2H23-02口P | 17 | 6.7 | 15 | 7.4 | 13.3 | 15.1 | |
| Φ4 | 1/8 | Y-KQ2H04-01口P | 12 | 7.9 | 16.4 | 11.2 | 13.3 | 6.9 |
| 1/4 | Y-KQ2H04-02口P | 17 | 9.1 | 14.9 | 7.4 | 13.3 | 14.5 | |
| Φ6 | 1/8 | Y-KQ2H06-01口P | 12 | 9.8 | 17.4 | 12.2 |
13.3 | 6.5 |
| 1/4 | Y-KQ2H06-02口P | 17 | 11.4 | 14.6 | 7.1 | 13.3 | 10.6 | |
| 3/8 | Y-KQ2H06-03口P | 21 | 11.4 | 14.9 | 7.3 | 13.3 | 22.8 | |
| Φ8 | 1/8 | Y-KQ2H08-01口P | 14 | 13.2 | 21.2 | 16 | 14.2 | 11.8 |
| 1/4 | Y-KQ2H08-02口P | 17 | 13.2 | 20 | 12.5 | 14.2 | 13.9 | |
| 3/8 | Y-KQ2H08-03口P | 21 | 13.2 | 15.2 | 7.6 | 14.2 | 19.6 | |
| Φ10 | 1/8 | Y-KQ2H10-01口P | 17 | 15.6 | 23.1 | 17.9 | 15.6 | 16.3 |
| 1/4 | Y-KQ2H10-02口P | 17 | 15.6 | 24.4 | 16.9 | 15.6 | 17.9 |
|
| 3/8 | Y-KQ2H10-03口P | 21 | 15.6 | 21 | 13.4 | 15.6 | 23.7 | |
| 1/2 | Y-KQ2H10-04口P | 27 | 15.6 | 18.8 | 8.4 | 15.6 | 40.9 | |
| Φ12 | 1/4 | Y-KQ2H12-02口P | 19 | 17 | 26.6 | 19.1 | 17 | 22 |
| 3/8 | Y-KQ2H12-03口P | 21 | 17 | 24.9 | 17.3 | 17 | 28.6 | |
| 1/2 | Y-KQ2H12-04口P | 27 | 17 | 24.9 | 14.5 | 17 | 45 | |
| Φ16 | 1/4 | Y-KQ2H16-02口P | 24 | 20.6 | 30.6 | 23 | 20.6 | 42.5 |
| 3/8 | Y-KQ2H16-03口P | 24 | 20.6 | 30.6 | 23 | 20.6 | 39.2 | |
| 1/2 | Y-KQ2H16-04口P | 27 | 20.6 | 32.1 | 21.7 | 20.6 | 55 |
Straight-through connector with internal hexagonal socket: Y-KQ2S(Sealing ring seal)


Suitable for the outer diameter of the pipe (mm) |
Connection thread (R) |
Model | H (Hexagonal opposite sides) |
ΦD | L1 | L2 | A | M | Weight (g) |
| Φ4 | 1/8 | Y-KQ2S04-01口P | 3 | 13 |
19.1 | 18.1 | 13.9 | 13.3 | 11.6 |
| Φ6 | 1/8 |
Y-KQ2S06-01口P | 4 | 13 | 19.6 | 18.6 | 14.4 | 13.3 | 9.6 |
| 1/4 | Y-KQ2S06-02口P | 4 | 18 | 19.8 | 18.4 | 12.3 | 13.3 | 16.3 | |
| Φ8 |
1/8 |
Y-KQ2S08-01口P | 5 | 13.2 | 21.2 | 19.7 | 16 | 14.2 | 9 |
| 1/4 | Y-KQ2S08-02口P | 6 | 18 | 20.4 | 19.4 | 12.9 | 14.2 | 15.5 | |
| 3/8 | Y-KQ2S08-03口P | 6 | 22 | 20.4 | 19.4 | 12.8 | 14.2 | 26.3 | |
| Φ10 | 1/8 |
Y-KQ2S10-01口P | 5 | 15.6 | 22.9 | 21.1 | 17.7 | 15.6 | 17.8 |
| 1/4 | Y-KQ2S10-02口P | 8 | 18 | 24.4 | 21 | 16.9 | 15.6 | 19.2 | |
| 3/8 | Y-KQ2S10-03口P | 8 | 22 | 21.1 | 20.1 | 13.5 | 15.6 | 23.4 | |
| 1/2 | Y-KQ2S10-04口P | 8 | 26 | 21.1 | 20.1 | 10.7 | 15.6 | 40.6 | |
| Φ12 | 1/4 | Y-KQ2S12-01口P | 8 | 18.2 | 27 | 22.5 | 19.5 | 17 | 24.3 |
| 3/8 | Y-KQ2S12-02口P | 10 | 22 | 25.4 | 23 | 17.8 | 17 | 28.2 | |
| 1/2 | Y-KQ2S12-03口P | 10 | 26 | 25.4 | 23.6 | 15 | 17 | 40.7 | |
| Φ16 | 1/4 | Y-KQ2S16-01口P | 8 | 23.6 | 30.6 | 25.1 | 23 | 20.6 | 35.1 |
| 3/8 | Y-KQ2S16-02口P | 10 | 23.6 | 30.6 | 25.4 | 23 | 20.6 | 27.9 | |
| 1/2 | Y-KQ2S16-03口P | 12 | 26 | 26 | 26.1 | 21.7 | 20.6 | 48.2 |
Elbow: Y-KQ2L(Sealing ring seal)


Suitable for the outer diameter of the pipe (mm) |
Connection thread (R) |
Model | H (Hexagonal opposite sides) |
ΦD1 | ΦD2 | L1 | L2 | A | M | Weight (g) |
| Φ3.2 | 1/8 | Y-KQ2L23-01口P | 12 | 7.4 | 10 | 14.5 | 16 | 14.3 | 13.3 | 5.1 |
| 1/4 | Y-KQ2L23-02口P | 17 | 7.4 | 10 | 14.5 | 19.4 | 15.3 | 13.3 | 14.3 | |
| Φ4 | 1/8 | Y-KQ2L04-01口P | 12 | 8.8 | 10 | 14.8 | 15.6 | 14.8 | 13.3 | 5.2 |
| 1/4 | Y-KQ2L04-02口P | 17 | 8.8 | 10 | 14.8 | 19 | 15.9 | 13.3 | 14.5 | |
| Φ6 | 1/8 | Y-KQ2L06-01口P | 12 | 10.7 | 10 | 15.3 | 17.9 | 18 | 13.3 | 5.7 |
| 1/4 | Y-KQ2L06-02口P | 17 | 10.7 | 10 | 15.3 | 21.3 | 19.1 | 13.3 | 15 | |
| 3/8 | Y-KQ2L06-03口P | 21 | 10.7 | 10 | 15.3 | 22.8 | 20.5 | 13.3 | 30.2 | |
| Φ8 | 1/8 | Y-KQ2L08-01口P | 12 | 13.6 | 10 | 16.4 | 18.1 | 19.6 | 14.2 | 6.5 |
| 1/4 | Y-KQ2L08-02口P | 17 | 13.6 | 12 | 17.4 | 22.5 | 21.7 | 14.2 | 13.7 | |
| 3/8 | Y-KQ2L08-03口P | 21 | 13.6 | 12 | 17.4 | 24 | 23.1 | 14.2 | 28.7 | |
| Φ10 | 1/8 | Y-KQ2L10-01口P | 12 | 16.3 | 12 | 18.4 | 22.7 | 24.9 | 15.6 | 10.1 |
| 1/4 | Y-KQ2L10-02口P | 17 | 16.3 | 17 | 19.4 | 26.1 | 26.8 | 15.6 | 17.9 | |
| 3/8 | Y-KQ2L10-03口P | 21 | 16.3 | 17 | 19.4 | 26 | 26.6 | 15.6 | 17.8 | |
| 1/2 | Y-KQ2L10-04口P | 27 | 16.3 | 17 | 19.4 | 30.6 | 28.4 | 15.6 | 45.1 | |
| Φ12 | 1/4 | Y-KQ2L12-01口P | 17 | 19 | 17 | 21.8 | 27.5 | 29.6 | 17 | 19.6 |
| 3/8 | Y-KQ2L12-02口P | 21 | 19 | 17 | 21.8 | 27.1 | 29 | 17 | 19.7 | |
| 1/2 | Y-KQ2L12-03口P | 27 | 19 | 17 | 21.8 | 31.7 | 30.8 | 17 | 47 | |
| Φ16 | 1/4 | Y-KQ2L16-01口P | 17 | 23.8 | 17 | 25.1 | 29.6 | 33.9 | 20.6 | 24 |
| 3/8 | Y-KQ2L16-02口P | 21 | 23.8 | 21 | 27.1 | 32.7 | 37.0 | 20.6 | 33.8 | |
| 1/2 | Y-KQ2L16-03口P | 27 | 23.8 | 21 | 27.1 | 34.7 | 36.2 | 20.6 | 59.9 |
45° Elbow: Y-KQ2K(Sealing ring seal)


Suitable for the outer diameter of the pipe (mm) |
Connection thread (R) |
Model | H (Hexagonal opposite sides) |
ΦD1 | ΦD2 | L1 | L2 | A | M | Weight (g) |
| Φ4 | 1/8 | Y-KQ2K04-01口P | 12 | 8.8 | 10 | 14.4 | 12 | 19.5 | 13.3 | 5.1 |
| 1/4 | Y-KQ2K04-02口P | 17 | 8.8 | 10 | 14.4 | 15.4 | 20.5 | 13.3 | 14.3 | |
| Φ6 | 1/8 | Y-KQ2K06-01口P | 12 | 10.7 | 10 | 14.7 | 14.1 | 22.5 | 13.3 | 5.5 |
| 1/4 | Y-KQ2K06-02口P | 17 | 10.7 | 10 | 14.7 | 17.5 | 23.5 | 13.3 | 14.7 |
|
| 3/8 | Y-KQ2K06-03口P | 21 | 10.7 | 10 | 14.7 | 19.5 | 25.5 | 13.3 | 29.9 | |
| Φ8 |
1/8 | Y-KQ2K08-01口P | 12 | 13.6 | 10 | 16 | 15 | 25.2 | 14.2 | 6.4 |
| 1/4 | Y-KQ2K08-02口P | 17 | 13.6 | 12 | 16 | 19.4 | 27.2 | 14.2 | 13.5 | |
| 3/8 | Y-KQ2K08-03口P | 21 | 13.6 | 12 | 16 | 21.4 | 29.2 | 14.2 | 28.5 | |
| Φ10 | 1/8 | Y-KQ2K10-01口P | 12 | 16.3 | 12 | 18.2 | 20.1 | 32.7 | 15.6 | 10.1 |
| 1/4 | Y-KQ2K10-02口P | 17 | 16.3 | 17 | 17.6 | 26.1 | 35.9 | 15.6 | 18 | |
| 3/8 | Y-KQ2K10-03口P | 21 | 16.3 | 17 | 17.6 | 20.5 | 30.3 | 15.6 | 17.3 | |
| 1/2 | Y-KQ2K10-04口P | 27 | 16.3 | 17 | 17.6 | 25.3 | 32.3 | 15.6 | 44.6 | |
| Φ12 | 1/4 | Y-KQ2K12-01口P | 17 | 19 | 17 | 19.4 | 26 | 37.9 | 17 | 19.5 |
| 3/8 | Y-KQ2K12-02口P | 21 | 19 | 17 | 19.4 | 20.4 | 32.3 | 17 | 18.8 | |
| 1/2 | Y-KQ2K12-03口P | 27 |
19 | 17 | 19.4 | 25.2 | 34.3 | 17 | 46.1 | |
| Φ16 |
1/4 | Y-KQ2K16-01口P | 17 | 23.8 | 17 | 24.3 | 26.6 | 43.3 | 20.6 | 23.9 |
| 3/8 | Y-KQ2K16-02口P | 21 | 23.8 | 21 | 23.8 | 28.7 | 45 | 20.6 | 32.2 | |
| 1/2 | Y-KQ2K16-03口P | 27 | 23.8 | 21 | 23.8 | 30.7 | 44.2 | 20.6 | 58.3 |