The NAF Duball DL Pocket Valve is the pulp and paper industry’s choice for a reliable and robust valve solution that allows for safe removal of sand or debris in separator and junk trap applications during normal process operation. Building on years of experience in providing flow control solutions in harsh environments, the Duball DL Pocket Valve is specifically designed to ensure continuous process uptime and throughput by allowing process pressure to be maintained while unwanted process particles are eliminated.
Additional information
| Valve Size | 3" to 8" |
|---|---|
| Pressure Class Standard | ASME B16.34 |
| Pressure Class Range | Class 150, 300 |
| Body | Two-Piece Body |
| End Connections | Integral Flange |
| Face-to-Face Standard | ANSI B16.10 Short (Class 300) & Long Pattern (Class 150) |
| Bonnet | Body Integral |
| Packing | R-PTFE Carbon Reinforced, Live-Loaded |
| Configuration | Floating Ball |
| Trim | Pocket Ball |
| Seating | Metal-to-Metal |
| Shut-Off Classification | ISO 5208 Rate D |
Features & Benefits
- The NAF Duball DL Pocket Valve is installed for safe removal of sand and fine debris out of the process as effectively as possible while maintaining process pressure
- NAF Duball DL Pocket Valve is based on the heavy-duty NAF Duball DL valve
- The valve is specially designed to withstand extremely tough applications where the media causes a high degree of wear; resulting in less need for maintenance and a longer lifetime
- Solid ball in Alloy 6 minimizes maintenance
- Easy installation and replacement as a result of the off-center joint face of the valve body
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| PED Directive 97/23/EC | |
| Design Standards | ASME B16.5 – Pipe Flanges & Flanged Fittings |
| ASME B16.10 – Face to Face & End Dimenions of Valves | |
| ASME B16.34 – Valve Flanged, Threaded, and Welding End | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2008 |
| ATEX QAN | |
| IECEX QAR |
