VL-551B-M
| Nominal size | DN8 to DN100 1/4" to 4" |
| Nominal pressure | PN63 |
| Port | full bore |
| Connection | Butt-weld ends - Abbr. "BW-ends" - according to DIN EN 12627 |
| Design | - manually operated - 2-flat shift shaft - Adjustable packing nut - Hand lever with plastic sleeve |
| Temp. range | -10°C to +200°C (Note pressure / temperature diagram) |
| Standard | - CE according to Pressure Equipment Directive 2014/68/EU |
| Optional* |
* with corresponding configuration
Quality and Handling
For years, the ball valves of this series have proven their excellent quality in continuous use by our customers worldwide.
Specially designed for manual operation, the stem packings with adjustable packing nuts remain reliably tight even when subjected to strong eccentric forces.
Face-to-face lengths
The valves of this product series are not manufactured according to standard face-to-face lengths but are significantly shorter.
Therefore, these ball valves are ideal for confined spaces where a cost-effective yet high-quality ball valve is required.
Inline Service
Due to the design, replacing seals or spare parts while the valve is installed is straightforward. Only one tie bolt needs to be loosened, and all others removed.
This allows the center section, including all wear parts, to be simply swung out. During reassembly, the edges of the body and ball seals must be positioned carefully before swinging the center section back into place. Tighten the tie bolts – and you're done.
Locking device (Optional)
Optionally, these ball valves are also available with stainless steel hand levers featuring an integrated eyelet and an additional tab for locking in the respective switching position, as well as for the possibility of securing with an additional padlock.
| Seals: | ||
| RPTFE | PTFE reinforced with 15% glass fibers | |
| Body: | ||
| PRB | Pressure relief hole through the ball | |
| SD | M5 or M6 thread in the stem for accessory mounting | |
| Accessories: | ||
| M-LD | Hand lever with integrated eyelet and locking tab | |
| for locking and securing this series | ||
| Others: | ||
| OGF | Oil and grease-free version | |
| SF | Silicone-free version (silicone-free lubricants) | |
| OGSF | Oil, grease, and silicone-free version | |
Further options or special designs according to customer specifications are of course also possible upon consultation.
Please contact us!