The pneumatic hard-sealed butterfly valve features a tri-eccentric structure with a composite metal disc composed of soft and hard layered materials. It combines the advantages of metal-to-metal sealing and elastic sealing, providing dual sealing functionality. The valve supports bidirectional sealing, allowing installation in any orientation without restrictions from medium flow direction or spatial constraints. Ideal for industrial pipelines in metallurgy, power generation, petroleum, and chemical industries, it is used for flow regulation and shut-off services in media temperatures up to ≤425℃.
Product Features
4.Versatile Flange-Clip Connection
Component Name | Material/Specification | Function Description |
Body | Carbon Steel, Alloy Steel, Stainless Steel | Pressure-bearing main body with full anti-corrosion protection, flange-connected piping. |
Disc | Carbon Steel, Alloy Steel, Stainless Steel | Rotates to control medium flow, forming a zero-leakage seal with the seat. |
Stem | Carbon Steel, 304/316/316L Stainless Steel | Transmits driving force from the actuator, corrosion-resistant and torsion-resistant. |
Sealing Ring | Stainless Steel | Elastic sealing structure, compatible with high temperatures and medium variations. |
Actuator | Explosion-proof/non-explosion-proof electric actuator | Supports on/off and regulating control, integrated with intelligent signal feedback. |
Medium Types:
Application Fields:
Installation Requirements
1.Pipeline Cleaning:
2.Alignment Calibration:
4.Actuator Positioning:
Provide adequate operational clearance around the actuator and avoid exposing it to high-temperature zones to prevent performance issues in pneumatic components.
Plywood case
After-Sales Warranty