Description
Aquinox Stainless Steel Female Union — M Profile
Product Overview
Aquinox presents the Stainless Steel Female Union M Profile, a high-quality quick-connect fitting designed for demanding industrial environments. Crafted from premium stainless steel, it offers superior **corrosion resistance** and long-term durability, making it ideal for robust piping connections, fluid control, and various industrial uses.
Key Features
- High-Quality Materials
- **Stainless Steel 1.4301 (AISI 304):** Good corrosion resistance and machinability for standard industrial conditions.
- **Stainless Steel 1.4404 (AISI 316L):** Recommended for high-corrosion environments (e.g., marine, chemical applications).
- Outstanding Performance
- **Maximum Working Pressure:** Up to **2.5 MPa (25 Bar)** — suitable for many high-pressure applications. *Note: Data from O-ring table shows 2.5 MPa.*
- Compliance with International Standards
- Manufactured per **EN Standard** requirements to meet international quality expectations.
Product Specifications and Dimensions
Available in multiple outer diameter (OD) options to suit common piping systems:
| OD (mm) | Connection Specification (Female Thread) |
|---|---|
| 15 | Rp1/2 |
| 18 | Rp1/2 |
| 22 | Rp3/4 |
| 28 | Rp1 |
| 35 | Rp1-1/4 |
| 42 | Rp1-1/2 |
| 54 | Rp2 |
Applications
- **Industrial Piping Systems**: Secure piping connections in chemical, petroleum, and paper industries.
- **Construction & Municipal Projects**: Essential for water supply, HVAC, and public infrastructure systems.
Advantages of Fittings
- **Easy Assembly**: Practical and convenient (**efficient installation in seconds**).
- **Quick Installation**: Saves hours of labour, ideal for large projects.
- **Safe and Approved**: Guaranteed system with reliable sealing.
- **Simplified Labour**: No need for specialised personnel (just a press tool).
- **Flameless Connection**: Enhances safety by eliminating the need for naked flames.
O-Ring Material Characteristics and Application
The rubber O-ring is critical to sealing and sanitary performance. Aquinox uses imported rubbers, processed under controlled vulcanization and in compliance with **GB/T 19228.3-2012**. Drinking-water O-rings meet **GB/T17219**; **EU DVGW** options are available. O-rings resist hot water, ageing and common drinking-water additives.

O-Ring Compatibility Chart:
| Material | Color | Temperature Range | Max. Working Pressure (MPa) | Application |
|---|---|---|---|---|
| EPDM | Black | -40°C – 150°C | 2.5 | Hot & Cold Water / Drinking Water |
| SI | White | -20°C – 200°C | 2.5 | Hot & Cold Water / Drinking Water |
| 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

