The Valtek Valdisk BX is a double offset butterfly control valve designed to meet the most routine and the most rigid service requirements. Adopted from Flowserve’s Durco BX product, the Valdisk BX offers a proven design and variety of configurations for seating, packing and materials.
Additional information
| Valve Size | 2" to 30" |
|---|---|
| Pressure Class Standard | ASME B16.34 |
| Pressure Class Range | Class 150, 300 |
| Body | Wafer |
| End Connections | Lugged, Integral Flange, Flangeless |
| Face-to-Face Standard | MSS SP 68 |
| Bonnet | Body Integral |
| Packing | Standard, Twin Seal, Vacuum Seal, Fugitive Emissions, Live-Loaded, Fire-Safe |
| Configuration | Double-Offset |
| Trim | Contoured Eccentric-Cammed Disc |
| Trim Characteristics | Linear |
| Seating | Metal-to-Metal & Soft |
| Shut-Off Classification | ANSI FCI 70-2 Class IV, V, VI |
Features & Benefits
- Primary stem seal plus two optional secondary seals provide triple leak protection
- Retainer is locked in the valve body by a unique lock or fasteners, depending on size
- Adjustable, live-loaded packing options available
- Low profile disc increases capacity and provides better flow control
- Tapered shaft to disc pins provide tight connections for excellent control without requiring the shaft to be drilled
- Inherently linear flow characteristic provides good control over the entire flow range
- Soft seat (Class VI) and metal seat (Class IV) provide reliable long-life, shut-off capability
- Packing provides low emissions for a variety of applications, complying with industry standards
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| Design Standards | ASME B16.5 – Pipe Flanges & Flanged Fittings |
| MSS SP 68 – High Pressure Butterfly Valves with Offset Design | |
| ASME B16.34 – Valve Flanged, Threaded, and Welding End | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2008 |
| ATEX QAN | |
| IECEX QAR |
