VKD DU Ball Valve FPM
Technical Specification
- Product type: Double union 2-way ball valve
- Material: Chlorinated polyvinyl chloride (CPVC)
- Seal material: FPM
- Valve design: True union, DualBlock system
- Manufacturer: Durapipe
- End connections: Female solvent weld sockets (solvent cement and cleaner required)
- Maximum working pressure: 16 bar at 20°C
- Size range: 16mm to 110mm
- System compatibility: Corzan CPVC pipe and fittings
Description
The VKD Double Union Ball Valve with FPM seals is a heavy-duty isolation valve engineered for demanding Corzan CPVC pipework systems where vibration, thermal expansion or aggressive media are present. Its robust true union construction allows the valve body to be removed from the pipeline without disturbing adjacent joints, supporting efficient servicing and long-term system reliability.
Manufactured from high-performance CPVC and fitted with FPM seals, the VKD valve offers excellent resistance to corrosive chemicals, elevated temperatures and industrial process fluids. The patented DualBlock locking system ensures the union nuts remain securely in position, even in installations exposed to mechanical vibration or repeated thermal cycling.
The valve also features a Seat Stop ball seat carrier, allowing micro-adjustment of the seats and compensation for axial pipe loads. This can be carried out while the valve remains installed, reducing downtime and avoiding the need to drain the system during maintenance.
Key Features & Benefits
- DualBlock locking system: Prevents union nut loosening under vibration or thermal movement
- True double union design: Valve can be removed without cutting the pipework
- FPM seals: Excellent resistance to aggressive and high-temperature chemical media
- High pressure capability: Rated to 16 bar at 20°C
- Seat Stop technology: Allows fine adjustment of ball seats and axial load take-up
- Large size availability: Sizes up to 110mm for higher flow industrial systems
- Actuation compatible: ISO 5211 mounting for electric or pneumatic actuators
- System matched: Fully compatible with Corzan CPVC pipes and fittings
| Product Code | d (mm) | DN (mm) | L (mm) | Z (mm) | H (mm) | H1 (mm) | E (mm) | B (mm) | B1 (mm) | C (mm) | C1 (mm) | Pressure Rating (bar) |
| 354588 | 16 | 10 | 14 | 75 | 103 | 65 | 54 | 54 | 29 | 67 | 40 | 16 |
| 354589 | 20 | 15 | 16 | 71 | 103 | 65 | 54 | 54 | 29 | 67 | 40 | 16 |
| 354590 | 25 | 20 | 19 | 77 | 115 | 70 | 65 | 65 | 34.5 | 85 | 49 | 16 |
| 354591 | 32 | 25 | 22 | 84 | 128 | 78 | 73 | 69.5 | 39 | 85 | 49 | 16 |
| 354592 | 40 | 32 | 26 | 94 | 146 | 88 | 86 | 82.5 | 46 | 108 | 64 | 16 |
| 354593 | 50 | 40 | 31 | 102 | 164 | 91 | 98 | 89 | 52 | 108 | 64 | 16 |
| 354594 | 63 | 50 | 38 | 123 | 199 | 111 | 122 | 108 | 62 | 134 | 76 | 16 |
| 354595 | 75 | 65 | 44 | 147 | 235 | 133 | 164 | 164 | 87 | 225 | 175 | 16 |
| 354596 | 90 | 80 | 51 | 168 | 270 | 149 | 203 | 177 | 105 | 327 | 272 | 16 |
| 354597 | 110 | 100 | 61 | 186 | 308 | 167 | 238 | 195 | 129 | 385 | 330 | 16 |
If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.
