Vahn-Tech Series LBFV is a fluoropolymer lined concentric butterfly valve designed for chemically corrosive process medias. The design features enhanced seat energizer along with mechanically loaded packing arrangement to mitigate any media propagation past the stem.
Additional information
| Valve Size | 2" to 24" |
|---|---|
| Pressure Rating | 200 psig |
| Body | Wafer |
| End Connections | Lugged, Flangeless |
| Face-to-Face Standard | API 609 |
| Bonnet | Body Integral |
| Packing | Dual Bushing and Mechanically Energized Collar |
| Configuration | Concentric Fluoropolymer Lined |
| Trim | Fluoropolymer Lined Disc |
| Trim Characteristics | Quick-Opening |
| Seating | Soft |
| Shut-Off Classification | API 598 |
Features & Benefits
- Top Stem Bushing is retained by a stainless steel ring, is provided to absorb actuator side thrust and standards or PTFE as an option
- Extended neck design for all valve sizes allows for 2″ of piping insulation and provides easy access for mounting actuators
- Flange Locating Holes provide quick and precise alignment during valve installation eliminating disc interference with adjacent pipe I.D.
- The seat design reduces seating unseating torque and, at the same time, reduces wear on the contacting parts
- Unique seat geometry permits lower torques and reduces seat wear
- PTFE disc has 1/8″ (3 mm) minimum thickness of pure PTFE encapsulated over Stainless Steel
- Resilient seat energizer extends completely around the seat, including the disc hub, provides uniform force sufficient for bubble-tight shut off
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| Design Standards | API 609 – Butterfly Valves: Double-Flanged, Lug and Wafer |
| ASME B16.5 – Pipe Flanges & Flanged Fittings | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2015 |
