Description
Stainless Steel Union Female x Female – 316 Grade
Our 316 Stainless Steel Female x Female Unions are designed to provide a secure, detachable connection between two male threaded pipes or fittings. Manufactured from high-quality 316 grade stainless steel, these unions offer excellent corrosion resistance, strength and durability for industrial, agricultural and commercial pipework applications.
Featuring female BSP threaded connections at both ends, these stainless steel unions allow sections of pipework to be easily disconnected for maintenance, inspection or replacement without dismantling the entire installation.
The three-piece union design incorporates a central union nut, allowing the connection to be separated and reassembled while the threaded ends remain installed in the pipework.
Key Features
- Material: 316 Grade Stainless Steel
- Connection: Female BSP x Female BSP
- Pressure Class: 150 lbs (Class 150)
- Design: Three-piece union with central union nut
- Connection Type: Equal Female x Female
- Maintenance: Allows easy disconnection of pipework
- Corrosion Resistance: Excellent resistance to corrosion in demanding environments
- Construction: Durable stainless steel fitting for long-term performance
Typical Applications
- Industrial pipework and fluid transfer systems
- Water distribution and pumping installations
- Agricultural and irrigation systems
- Chemical processing applications, subject to compatibility
- Marine and coastal environments
- General engineering and mechanical installations
- Pump, valve and equipment connections requiring periodic maintenance
Technical Specifications
| Specification | Details |
|---|---|
| Product | Stainless Steel Union Female x Female |
| Material | 316 Stainless Steel |
| Thread Connection | Female BSP x Female BSP |
| Pressure Class | Class 150 (150 lbs) |
| Configuration | Equal Female x Female |
| Design | Three-Piece Union |
| Application | Detachable Threaded Pipework Connections |
BSP Thread Dimension Guide
BSP thread sizes are nominal and do not represent the actual physical diameter of the thread. The table below provides standard BSP thread major diameters in millimetres to assist with identifying the correct fitting size.
| BSP Thread Size | Major Diameter (mm) |
|---|---|
| 1/8" | 9.7 |
| 1/4" | 13.2 |
| 3/8" | 16.7 |
| 1/2" | 21.0 |
| 3/4" | 26.4 |
| 1" | 33.2 |
| 1 1/4" | 41.9 |
| 1 1/2" | 47.8 |
| 2" | 59.6 |
| 2 1/2" | 75.2 |
| 3" | 87.9 |
| 4" | 113.0 |
Important: The dimensions shown are standard BSP thread major diameters and are provided for reference. For female threaded fittings, these values correspond to the nominal major diameter of the matching male thread, not the internal bore measurement of the union.
Installation Information
Ensure all mating threads are compatible, clean and correctly aligned before installation. Use an appropriate sealing method for the thread type and application.
The central union nut allows the fitting to be disconnected without rotating the connected pipework. Ensure the union sealing faces are clean and correctly seated before tightening the union nut.
Please Note: Class 150 is a fitting pressure classification and does not mean a fixed maximum working pressure of 150 PSI. Actual working pressure depends on the fitting specification, operating temperature and application. Always confirm the manufacturer's pressure rating before installation.
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