Brass Double Check Valve Threaded
Useful Information
Technical Specification
- Material: DZR brass
- Connection Type: BSPP female threaded
- Pressure Rating: 16 bar
- Operating Temperature: -10°C to 85°C
- Standards: EN 13959
- WRAS Approval: Licence no. 1709141 (1807372 for 11/4")
- Application: Preventing backflow in potable water systems
Description
This DZR brass double check valve is engineered to prevent backflow and safeguard potable water systems against contamination. Featuring BSPP female threads and a robust dezincification-resistant brass body, it ensures long-lasting performance in both residential and commercial settings. WRAS approved and rated to 16 bar, it provides reliable backflow prevention by allowing fluid to pass in only one direction. Operating effectively across a wide temperature range, this valve conforms to EN 13959 and is suitable for use in hot and cold water systems.
Key Features & Benefits
- Backflow Protection: Dual internal check valves ensure fluid flows in only one direction, preventing contamination.
- DZR Brass Body: Dezincification-resistant brass offers superior corrosion resistance and long service life.
- WRAS Approved: Certified for potable water use (Licence numbers 1709141 and 1807372 for 11/4").
- High Pressure Rating: Rated to 16 bar for secure operation in high-pressure water systems.
- Temperature Range: Operates from -10°C to 85°C, suitable for both hot and cold water applications.
- BSPP Female Threads: Provides a secure and compatible threaded connection.
- Standards Compliant: Conforms to EN 13959 for double check valves.


| SKU | DN (inch) |
A (mm) | B (mm) | Weight (kg) |
| 392095 | 1/2 | 71 | 17.5 | 0.11 |
| 392096 | 3/4 | 83 | 20 | 0.17 |
| 392097 | 1 | 98 | 22.8 | 0.28 |
| 392098 | 1 1/4 | 118 | 26 | 0.45 |
| 392099 | 1 1/2 | 134 | 30 | 0.64 |
| 392100 | 2 | 173 | 35 | 1.19 |
| No. | Description | Material |
| 1 | Body | DZR brass |
| 2 | Non-return core | Acetal |
| 3 | Screw | Brass |
| 4 | O-ring | Nitrile rubber (NBR) |
| 5 | Catch spring | Stainless steel 304 |
