Stainless Steel 3 Piece Ball Valve BSPT
Technical Specification
- Material: Stainless Steel
- Connection: Female BSPT Thread
- Sizes Available: 1/4" - 3"
- Pressure Rating:
- 1/4" to 1": 82 bar
- 1 1/4" to 1 1/2": 69 bar
- 2" to 3": 62 bar
- Operating Temperature: -25°C to +200°C
- Bore: Full Bore
- Features: ATEX approval and locking device.
Description
Rated to 82 bar, this stainless steel three-piece ball valve features BSP Taper female/female end connections conforming to ISO 7/1, making it well suited to a wide range of industrial and process pipework applications. The three-piece body construction is a key advantage, allowing the central valve body to be removed from the pipeline for cleaning, maintenance, or ball replacement without disturbing the end connections, significantly reducing downtime.
Constructed with a CF8M stainless steel body and stainless steel 316 ball and stem, it offers outstanding corrosion resistance and reliable performance under demanding high-pressure conditions. The full bore design ensures maximum flow capacity, keeping pressure drop to a minimum. PTFE seals throughout provide low-friction, chemically resistant operation across a working temperature range of -25°C to +200°C. The integrated locking lever prevents inadvertent operation, providing an additional layer of safety in critical installations. ATEX approved, this valve is also suitable for use in potentially explosive atmospheres.
Typical Applications
Key Features & Benefits
- Three-piece Construction: The central body can be removed from the pipeline without disturbing end connections, allowing straightforward in-line maintenance, cleaning, and ball replacement with minimal downtime.
- ATEX Approved: Certified for use in potentially explosive atmospheres, making this valve suitable for hazardous industrial environments.
- Full-bore Design: Unrestricted flow path minimises pressure drop and accommodates pipeline pigging where required.
- PTFE Seals: Low-friction, chemically resistant sealing throughout ensures long service life and reliable shut-off performance.
- BSP Taper connections (ISO 7/1): Female/female BSPT ends conform to ISO 7/1, ensuring compatibility with standard BSP taper pipework systems.
- Locking Lever: Integrated locking device prevents unintended valve operation, enhancing safety in critical or high-risk applications.
Pressure & Temperature Relationship


Dimensions & Materials


| Part | Description | Material |
| 1 | Body | Stainless Steel (CF8M) |
| 2 | Ball Seat | R-PTFE (15%) |
| 3 | Ball | Stainless Steel (316) |
| 4 | Body Gasket | PTFE |
| 5 | Cap | Stainless Steel (CF8M) |
| 6 | Spring Washer | Stainless Steel (304) |
| 7 | Nut | Stainless Steel (304) |
| 8 | Bolt | Stainless Steel (304) |
| 9 | Stem | Stainless Steel (316) |
| 10 | Thrust Washer | PTFE |
| 11 | Stem Packing | PTFE |
| 12 | Gland Nut | Stainless Steel (304) |
| 13 | Handle | Stainless Steel (304) |
| 14 | Spring Washer | Stainless Steel (304) |
| 15 | Nut | Stainless Steel (304) |
| 16 | Lock Device | Stainless Steel (304) |
| 17 | Handle Cover | Plastic |
| Product Code | DN (") | d (mm) | L (mm) | H (mm) | W (mm) | Torque | Kv | Weight (kg) |
| 353805 | 1/4 | 11.0 | 50 | 51 | 105 | 4 | 6.4 | 0.40 |
| 353806 | 3/8 | 12.5 | 60 | 51 | 105 | 4 | 15.7 | 0.42 |
| 353807 | 1/2 | 15.0 | 75 | 53 | 118 | 5 | 26.2 | 0.45 |
| 353808 | 3/4 | 20.0 | 80 | 60 | 118 | 8 | 34.4 | 0.73 |
| 353809 | 1 | 25.0 | 90 | 75 | 150 | 10 | 53.9 | 1.04 |
| 353810 | 1 1/4 | 32.0 | 110 | 80 | 150 | 14 | 78.6 | 1.65 |
| 353811 | 1 1/2 | 40.0 | 120 | 88 | 182 | 18 | 127.2 | 2.25 |
| 353812 | 2 | 50.0 | 140 | 95 | 182 | 25 | 205.2 | 3.15 |
| 353813 | 2 1/2 | 65.0 | 185 | 121 | 254 | 48 | 379.4 | 6.50 |
| 353814 | 3 | 80.0 | 205 | 135 | 254 | 75 | 677.1 | 9.60 |


