DZR Brass Ball Valve Compression
Technical Specification
- Connection: Compression Nuts
- Approvals: WRAS
- Pressure Rating: 25 bar
- Operating Temperature: -10°C to +110°C
- Bore: Full Bore
- Stem: Anti-Blow Out


Description
This two-piece DZR brass ball valve with compression ends is designed for fast, reliable installation in water and mechanical systems without the need for threading or specialist tools. Manufactured from dezincification resistant brass, it provides excellent durability and resistance to corrosion, particularly in potable water applications where long-term performance is critical.
The compression connection design, in accordance with BS EN 1254-2, allows for secure jointing onto copper pipe with a simple tightening process. This makes it a practical choice for both new installations and maintenance work, reducing installation time while maintaining a strong, leak-resistant seal. A full bore internal design ensures minimal restriction to flow, helping maintain system efficiency and reducing pressure loss. This is particularly beneficial in distribution systems and applications where consistent flow rates are important.
The valve incorporates an anti-blow-out stem for added safety under pressure, while PTFE seats provide smooth operation and dependable sealing over repeated use. With a pressure rating of up to 25 bar and a working temperature range from -10°C to +110°C, it is well suited to a wide variety of hot and cold water systems.
Typical Applications
- Domestic and Commercial Plumbing: Ideal for isolating flow in copper pipe systems.
- Potable Water Systems: WRAS approved for drinking water use.
- Heating Systems: Suitable for hot and cold water circuits.
- Maintenance and Retrofit Work: Compression ends simplify installation in existing systems.
- General Building Services: Reliable shut-off for a wide range of mechanical applications.
Key Features & Benefits
- DZR Brass Construction: Resists dezincification and extends service life in water systems.
- Compression Ends: Quick and straightforward installation onto copper pipework.
- Full Bore design: Maximises flow and reduces pressure drop.
- 25 Bar Pressure Rating: Suitable for demanding system conditions.
- Wide Temperature Range: Performs reliably from -10°C to +110°C.
- Anti-blow-out Stem: Improves operational safety under pressure.
- PTFE Seats: Smooth quarter-turn operation and long-lasting sealing.
- WRAS Approved: Suitable for potable water installations.
Pressure & Temperature Relationship


Dimensions & Materials


| Part | Description | Material |
| 1 | Body | DZR Brass (CW602N) |
| 2 | Cap | DZR Brass (CW602N) |
| 3 | Seat | PTFE |
| 4 | Ball | Chrome Plated DZR Brass (CW602N) |
| 5 | Stem | DZR Brass (CW602N) |
| 6 | O-Ring | NBR |
| 7 | Handle | Steel (A3) |
| 8 | Lock Nut | Brass (CW617N) |
| 9 | Nut | Steel (A3) |
| 10 | Stem Packing | PTFE |
| 11 | Nut | Brass (CW617N) |
| 12 | Olive | Brass (CW617N) |
| Product Code | DN (m) | O (mm) | F (mm) | SI (mm) | H (mm) | L (mm) | Kv | Weight (kg) |
| 353661 | 15 | 14.5 | 18.8 | 70.5 | 48 | 88 | 15.6 | 0.28 |
| 353662 | 22 | 19.0 | 20.3 | 82.0 | 52 | 100 | 28.0 | 0.36 |
| 353663 | 28 | 24.5 | 22.0 | 91.5 | 65 | 125 | 46.0 | 0.57 |
| 353664 | 35 | 31.5 | 24.0 | 109.0 | 78 | 140 | 92.0 | 0.93 |
| 353665 | 42 | 39.5 | 28.0 | 123.0 | 86 | 140 | 158.0 | 1.34 |
| 353666 | 54 | 49.5 | 32.0 | 144.0 | 96 | 165 | 212.0 | 2.67 |

