01
Wafer Butterfly Valve with Ductile Iron and PTFE Rubber DN50-DN600
product specification
| Product Name | Butterfly valve | Body/Disc Material | Ductile Iron |
| Type | Wafer | Shaft | SS304/SS316 |
| Size | DN50-DN600 | Seal | PTFE |
| Operation | Handle/Worm gear/Electric/Hydraulic/Peneumatic | Standard | DIN/ANSI/GOST/JIS/BS |
product description
Butterfly valves function on a straightforward yet effective principle, relying on a central disc rotated by a stem to control fluid passage. This disc, when aligned with the pipeline, allows unobstructed flow, while a 90-degree rotation seals the passage completely—making the valve ideal for on-off or throttling applications.
The key components driving performance include the disc, stem, body, and sealing assembly. Disc designs vary by application: resilient-seated discs offer tight closure for low-pressure systems, while metal-seated options withstand high temperatures and abrasive media. The stem, often connected to manual handles or automated actuation systems, ensures precise disc positioning, with anti-leakage features preventing fluid loss at the stem-body interface.
Compared to other valve types, butterfly valves deliver distinct benefits: their compact profile reduces installation space, and the minimal pressure drop across the disc enhances energy efficiency. They also excel in rapid operation, with quick opening/closing cycles that minimize process downtime. These traits make them suitable for scenarios ranging from municipal water distribution to light industrial fluid handling, where reliability and cost-effectiveness are paramount.
