Immediately available
Immediately available
The Butterfly Valves PN 6 VBF21, designed for closed-circuit heating systems and mixing applications, feature nodular Grey cast iron bodies in sizes DN 40 to DN 150. Compliant with ISO 7268, leakage rate A, they require no maintenance for reliable operation. Equipped with SQK.. or SAL..T10 actuators, they offer flexible control options
| Specification | Details |
| Valve Housing | Gray cast iron for durability and corrosion resistance. |
| Size Range | DN 40 to DN 150, catering to diverse system requirements. |
| Flow Capacity (kvs) | 25 to 820 m³/h, ensuring efficient fluid control. |
| Flange Connection | PN 6 flange to ISO 7005 for secure, leak-proof connections. |
| Optional Manual Adjuster | For DN40 and DN50 slipper valves |
| Actuator Compatibility | Electromotoric actuators SQK.. or SAL..T10 |
| Maintenance-Free Operation | Requires no maintenance, reducing downtime and operational costs. |
| Versatile Application | Suitable for use in closed-circuit heating systems and mixing applications. |
| Control Options | 3-position controls, offering flexibility in control strategies. |
| Robust Construction | Body made of gray cast iron, ensuring durability and reliability in harsh operating conditions. |
| Environmental Compliance | Conforms to environmental standards and directives, ensuring environmentally compatible product design. |
| PN Class | PN 6 to ISO 7268 |
| Permissible Operating Pressure | max. 600 kPa (6 bar) to ISO 7005 within the permissible medium temperature range |
| Medium Temperature | 1…120 °C |
| Flange Connection | PN6, according to ISO 7005 |
| Angle of Rotation | 90° |
| Product No. | PN | DN | kvs [m3/h] |
| VBF21.40 1) | 6 | 40 | 25 |
| VBF21.50 1) | 6 | 50 | 40 |
| VBF21.65 | 6 | 65 | 63 |
| VBF21.80 | 6 | 80 | 100 |
| VBF21.100 | 6 | 100 | 160 |
| VBF21.125 | 6 | 125 | 550 |
| VBF21.150 | 6 | 150 | 820 |
| 1) Series with manual adjuster | |||
| Datasheet Siemens – Butterfly Valve VBF21 Series |
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