Definition and Main Function
It serves as a passage through which the refrigerant used for the air-conditioning system passes, and controls the reverse current and pressure of the refrigerant. 3 different types exist: discharge hose, liquid hose, and suction hose.
Hose Structure
Specifications Applied per Hose
| Hose | Spec | |||||||
| Size[mm] | Rubber | Veneer | Rubber | Veneer | Rubber | Veneer | ||
| Outer diameter(D1) | Inner diameter(D2) |  |
 |
 |
 |
 |
 |
|
 |
φ15.7 | φ8.2 | Ο | Ο | Ο | |||
| φ17.8 | φ11.0 | Ο | Ο | |||||
| φ19.0 | φ11.0 | Ο | Ο | Ο | ||||
| φ21.6 | φ15.2 | Ο | Ο | |||||
| φ23.0 | φ15.2 | Ο | Ο | |||||
| φ24.1 | φ16.2 | Ο | ||||||
| φ24.4 | φ16.1 | Ο | ||||||
| φ26.5 | φ18.5 | Ο | Ο | |||||
| φ26.9 | φ18.5 | Ο | Ο | Ο | ||||
| φ28.9 | φ20.5 | Ο | ||||||
Pipe Spec
| Pipe Type | Spec | |||||||
| Type | Size[mm] | Material | ||||||
| Outer diameter(D) | Thickness(t) | |||||||
|
LIQ | φ8~φ9.5 | 1.0~2.2 | A3003 | ||||
| DIS | φ12 | 1.0~2.0 | ||||||
| SUC | φ16~φ21 | 1.0~2.0 | ||||||
| Pipe Type(IHEX) | Spec | |||||||
| Type | Size[mm] | Material | ||||||
| Outer diameter(D1) | Inner diameter(D2) | |||||||
 |
Extrude | φ22 | φ14.2 | A3003 | ||||
 |
Spiral | φ22.4 | φ19.2 | |||||
Swaging & Pipe Tube Spec
| Items | Veneer | Rubber | |
| Liquid / Discharge / Suction | Suction only | ||
| Crimp shape & structure |  Shell lock - Bonding Type |
 Shell lock |
|
 Bead lock - O-ring Type |
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| Applicable Tube Size(OD x t) | Liq. | Ø8.0x1.0t / Ø9.0 x 1.8t , 1.25t / Ø9.52x1.25t, 1.65t | |
| Dis. | Ø12.0 x 1.8t , 1.25t / Ø12.7x1.25t, 1.65t | ||
| Suc. | Ø16.0 (Ø15.88) x 1.25t, 1.8t, 2.0t Ø18 x 1.25t,1.65t Ø19.05 (Ø19.0) x 1.8t, 1.6t, 1.25t |
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