Description
Aquinox Stainless Steel Reducing Coupling V Profile
Detailed Specifications • Advantages of Fittings • O-ring Materials • Installation
Specification: ② JIS Standard

| DN | Spec (mm) |
|---|---|
| 20×15 | 22.22×15.88 |
| 25×15 | 28.60×15.88 |
| 25×20 | 28.60×22.22 |
| 32×15 | 34.00×15.88 |
| 32×20 | 34.00×22.22 |
| 32×25 | 34.00×28.60 |
| 40×15 | 42.70×15.88 |
| 40×20 | 42.70×22.22 |
| 40×25 | 42.70×28.60 |
| 40×32 | 42.70×34.00 |
| 50×15 | 48.60×15.88 |
| 50×20 | 48.60×22.22 |
| 50×25 | 48.60×28.60 |
| 50×32 | 48.60×34.00 |
| 50×40 | 48.60×42.70 |
| 65×32 | 76.10×34.00 |
| 65×40 | 76.10×42.70 |
| 65×50 | 76.10×48.60 |
| 80×32 | 88.90×34.00 |
| 80×40 | 88.90×42.70 |
| 80×50 | 88.90×48.60 |
| 80×65 | 88.90×76.10 |
| 100×32 | 108.00×34.00 |
| 100×40 | 108.00×42.70 |
| 100×50 | 108.00×48.60 |
| 100×65 | 108.00×76.10 |
| 100×80 | 108.00×88.90 |
Specification: ③ EN Standard (V Profile)

A-type
| OD (mm) |
|---|
| 18×15 |
| 22×15 |
| 22×18 |
| 28×15 |
| 28×18 |
| 28×22 |
| 35×15 |
| 35×18 |
| 35×22 |
| 35×28 |
| 42×15 |
| 42×18 |
| 42×22 |
| 42×28 |
| 42×35 |
| 54×15 |
| 54×18 |
| 54×22 |
| 54×28 |
| 54×35 |
| 54×42 |
| 76.1×54 |
| 88.9×54 |
| 88.9×76.1 |
| 108×54 |
| 108×76.1 |
| 108×88.9 |

B-type
| OD (mm) |
|---|
| 18×15 |
| 22×15 |
| 22×18 |
| 28×15 |
| 28×18 |
| 28×22 |
| 35×15 |
| 35×18 |
| 35×22 |
| 35×28 |
| 42×15 |
| 42×18 |
| 42×22 |
| 42×28 |
| 42×35 |
| 54×15 |
| 54×18 |
| 54×22 |
| 54×28 |
| 54×35 |
| 54×42 |
| 76.1×54 |
| 88.9×54 |
| 88.9×76.1 |
| 108×54 |
| 108×76.1 |
| 108×88.9 |
Advantages of Fittings
- **Easy assembly** — practical and convenient (efficient)
- **Quick installation** — saving on hours of labour
- **Safe and approved** — guaranteed system
- No need for specialised personnel (no special skills required)
- Safe and **no use of naked flames**
Material Characteristics and Application of O-rings
The rubber **O-ring** for stainless steel press fittings is an important component which directly affects the sealing and sanitary performance of the entire system. **Aquinox O-rings** use imported rubber materials and are processed on automatic rubber vulcanizing machines under controlled vulcanization temperature and time. Aquinox strictly implements the performance standards in **GB/T 19228.3-2012**. The hygienic performance of the O-ring used for drinking water fully meets **GB/T17219**. We can also provide O-rings that meet the **EU DVGW standard**. O-rings are resistant to hot water, ageing, and the additives commonly used in drinking water. Different types of O-rings are available depending on the application.

| Material | Color | Temperature Range | Max. Working Pressure | Application |
|---|---|---|---|---|
| **EPDM** | Black | -40°C – 150°C | 2.5 | ● Hot & Cold Water ● Drinking Water System |
| **SI** | White | -20°C – 200°C | 2.5 | ● Hot & Cold Water ● Drinking Water System |
| **SI (Import)** | Claret | -20°C – 200°C | 2.5 | ● Fire ● Steam ● Solar |
| **NBR** | Yellow | -30°C – 120°C | 2.5 | ● Gas & Oil |
| **HNBR** | Green | -30°C – 180°C | 2.5 | ● Gas |
| **FKM** | Brown | -30°C – 250°C | 2.5 | ● Industrial & chemical |
Installation Method

