Bronze Ball Valve BSPT Thread
Technical Specification
- Body Material: Bronze
- Seal Material: PTFE
- Sizes Available: 1/2" up to 2"
- Connection: Female BSPT Thread
- Pressure Rating: 40 bar
- Operating Temperature: -10°C to +140°C
- Bore: Full Bore
- Features: Blow-out proof stem
Description
This bronze ball valve delivers dependable shut-off performance across a broad range of industrial and commercial pipework applications. The body is manufactured from high-quality bronze, providing excellent corrosion resistance and long service life in water, oil, and general service systems. Available in sizes from 1/2" to 2", the valve incorporates a full-bore design that supports unrestricted flow and minimises pressure drop across the fitting.
PTFE sealing provides a tight, leak-free seal throughout the operating pressure and temperature range, while also reducing friction for smooth quarter-turn actuation. The blow-out proof stem offers an additional level of operational safety under high-pressure conditions, preventing stem ejection and ensuring secure performance over the life of the valve. A steel lever handle with vinyl sleeve enables fast, positive operation, and the robust construction makes this valve a reliable choice for both new installations and direct replacement in heating, plumbing, process, and industrial pipework systems.
Typical Applications
Key Features & Benefits
- Full Bore Design: Allows unrestricted flow through the valve body, minimising pressure drop and making it well suited to applications where flow efficiency is a priority.
- Blow-out Proof Stem: Prevents the stem from being ejected under pressure, providing a critical safety feature for high-pressure industrial installations.
- PN40 Pressure Rating: Rated to a maximum of 40 bar, this valve is suitable for demanding applications in both commercial and industrial environments.
- Wide Temperature Range: Performs reliably between -10°C and +140°C, making it appropriate for cold water, hot water, heating, and general service applications.
- High-grade Bronze Construction: ASTM B62 C83600 bronze provides superior corrosion resistance and mechanical durability, particularly in wet and general service pipework environments.
- PTFE Sealing Components: Deliver a reliable, leak-free seal across the full operating range, while reducing operational friction for smooth and consistent quarter-turn performance.
Pressure & Temperature Relationship


Dimensions & Materials


| Part | Description | Material |
| 1 | Body | Bronze (ASTM B62 C83600) |
| 2 | Ball* | Brass/Chrome Plated (ASTM B16 CA360) |
| 3 | Cap | Bronze (ASTM B62 C83600) |
| 4 | Thrust Washer | PTFE |
| 5 | Ball Seats | PTFE |
| 6 | Stem Packing | PTFE |
| 7 | Packing Guard | Brass (ASTM B16 CA360) |
| 8 | Stem | Brass (ASTM B16 CA360) |
| 9 | Handle | Steel (ASTM A107) |
| 10 | Handle Nut | Steel (ASTM A107) |
| 11 | Sleeve | Vinyl |
*1/2" - 3/4" Solid Ball. 1" - 2" Hollow Ball.
| Product Code | DN (") | A (mm) | B (mm) | C (mm) | D (mm) | Kv | Weight (kg) |
| 353826 | 1/2 | 54.5 | 46 | 82 | 12.7 | 8.3 | 0.22 |
| 353827 | 3/4 | 62.0 | 55 | 103 | 19.0 | 20.0 | 0.35 |
| 353828 | 1 | 73.1 | 62 | 105 | 25.0 | 28.3 | 0.56 |
| 353829 | 1 1/4 | 82.5 | 70 | 106 | 31.0 | 41.6 | 0.71 |
| 353830 | 1 1/2 | 91.7 | 75 | 150 | 38.0 | 62.4 | 1.15 |
| 353831 | 2 | 106.5 | 82 | 160 | 50.0 | 91.6 | 1.92 |

