Why Soft Sealed Flange Butterfly Valves Are the Go-To Choice for Efficient Pipeline Control

In many piping systems, especially where water and general-purpose fluids are involved, choosing the right valve can directly impact performance, reliability, and long-term cost. The soft sealed flange butterfly valve from Shengshi Chemical is designed to meet these demands with a focus on tight sealing, easy installation, and low-maintenance performance.

How the Soft Seal Works

This valve features a butterfly plate edge lined with soft, elastic materials like rubber or PTFE, which deform slightly under pressure to create a highly effective seal. This design allows the valve to achieve zero or near-zero leakage, even in dynamic systems with pressure or flow variations.

Because of this design, soft sealed butterfly valves are particularly useful in water supply pipelines, HVAC systems, and low-pressure chemical processing lines, where preventing leakage is critical to system efficiency and safety.

Flanged for Structural Integrity

Unlike wafer-style butterfly valves, Shengshi’s model uses a flange connection, where the valve body is bolted directly to the pipeline flange. This improves:

· Mechanical strength

· Sealing reliability

· Ease of maintenance and replacement

Versatile Design, Wide Application

With manual, electric, and pneumatic actuation options, the valve can be adapted to different levels of system automation. Its flexibility makes it suitable for everything from simple on/off control to precise flow regulation.

Performance Parameters:

· Size Range: DN40 – DN1200

· Pressure Range: PN1.0MPa to PN16.0MPa

· Temperature Resistance: -20°C to 200°C

· Media Compatibility: Water, air, steam, oil, acids, alkalis

· Material Options: Ductile iron, carbon steel, stainless steel

· Compliance: Meets ANSI, ISO, GB standards

Built to Last

With corrosion-resistant sealing materials and durable construction, this valve minimizes the need for frequent servicing. It offers excellent resistance to corrosion, scale build-up, and wear, even in slightly aggressive environments.

For engineers and procurement teams seeking a cost-effective, reliable valve for water and general fluid control, the soft sealed flange butterfly valve from Shengshi Chemical is a smart choice. With its tight-sealing performance, robust design, and broad adaptability, it delivers long-term value across a wide range of industrial and municipal applications.