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PRODUCTS / Concentric Butterfly valves / PTFE Seated Butterfly valves
Jeongdo Machinery’s Concentric PTFE Seated Butterfly Valve is designed for use with chemicals, corrosive fluids, and ultrapure water systems, utilizing PTFE material for both the disc and seat to ensure excellent chemical resistance.
Available in Wafer, Lugged, and Flanged types depending on connection requirements.
This valve features a PTFE-lined seat for excellent chemical resistance.
The body is tapped to allow dead-end service, enabling the butterfly valve to be installed securely at the end of a pipeline without downstream support.
Easy Maintenance
Allows valve replacement or inspection without full system shutdown, as pressure can be maintained on the opposite side even if one flange is removed.
Dead-End Service
Can be securely installed at the end of a pipeline without additional downstream support, making future line extensions and modifications easier.
Installation Flexibility
Easily integrates with flanged piping systems, and is compatible with various pressure classes and industrial environments, providing wide application versatility.
Reduced Leakage Risk
The precise bolting structure ensures accurate alignment between the valve and the pipeline, significantly reducing the risk of leakage at the connection point for stable system operation.
| Design Standards | |
|---|---|
| Valve Design | API 609 Category A |
| ASME B16.34 | |
| MSS-SP 67 | |
| Flange Drilling | ASME B16.5 |
| Face to Face | API 609, ISO 5752 |
| Specfication | |
|---|---|
| Body Type | Wafer / Lugged / Flanged |
| Size | 1.5 " ~ 64" |
| Flange Connection | ASME 150 |
| PN 10 | |
| Temperature Range | PTFE (-20℃~120℃) |
| PFA (-20℃~120℃) |
| Material Option | |
|---|---|
| Body | Cast Iron, Ductile Iron |
| A216-WCB | |
| A351-CF8 / CF8M / CF3M | |
| DISC | A351-CF8 / CF8M |
| A351-CF8+PTFE / CF8M+PTFE | |
| A351-CF8+PFA / CF8M+PFA | |
| Stem | SS420 |
| SS316 | |
| Seat | PTFE LINED EPDM |
| PTFE | |
| PFA |
