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China Suppliers Factory Wafer Butterfly Valve DN50-DN600 with Ductile Iron and PTFE Rubber for Fluid Control
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.
Frequently Asked Questions
What is the working principle of a wafer butterfly valve?
A wafer butterfly valve regulates fluid flow using a central disc mounted on a stem. Aligning the disc with the pipeline allows unobstructed flow, while rotating it 90 degrees seals the passage completely to stop the flow.
What materials are used for the body and sealing of the valve?
According to the product specifications, the body and disc are constructed from durable Ductile Iron, the shaft is made of stainless steel (SS304/SS316), and the seal is composed of high-grade PTFE.
What size range and standards do these butterfly valves support?
These valves are available in sizes from DN50 to DN600. They are designed to meet major international standards, including DIN, ANSI, GOST, JIS, and BS.
What are the primary operational methods available?
The valves support multiple operational methods to suit different systems, including manual Handle, Worm gear, and automated options like Electric, Hydraulic, and Pneumatic actuators.
What are the main advantages of using a wafer butterfly valve?
Key advantages include a compact profile that saves installation space, minimal pressure drop for enhanced energy efficiency, and rapid opening/closing cycles that reduce system downtime.