Sliding Type Line Blind Valve
Stainless Steel Line Blind Valve 8" Class 150 CF8/CF8M, ASME B16.34 Dervos
Select a line blind valve type to browse related models in this category.
| Parameter | Specification |
|---|---|
| Type | Line Blind Valve (Sliding / Swing Type) |
| Size | 8″ (DN200) |
| Pressure | Class 150 (PN20) |
| Connection | RF Flange, ASME B16.5 |
| Operation | Handwheel / Gear / Optional Actuator |
| Body Material | ASTM A351 CF8 / CF8M (Stainless Steel) |
| Spectacle Plate | Stainless Steel (CF8 / 316) |
| Seals | PTFE / Graphite / Metal (options available) |
| Design Standard | ASME B16.34 |
| Test Standard | API 598 |
| Temperature Range | -29°C to 150°C (up to 425°C with metal seat) |
| Applicable Media | Water, Oil, Gas, Corrosive Fluids, Chemicals, Seawater |
Product Features
- Cam-slide mechanism switches between open bore and solid blind plate in one body
- Switching is performed after local depressurization without spreading flanges
- Visible external position indication for open or blind status
- Manual, gear, pneumatic, hydraulic, or electric actuation available
- Suitable for high-temperature steam and multi-media pipelines
Selection Guide
- Confirm nominal size (NPS/DN) and pressure class (ASME Class or PN)
- Select body material for operating temperature and media (A105, F11, CF8, etc.)
- Define end connection: RF, RTJ, or BW per piping specification
- Specify actuator: handwheel, bevel gear, or automated drive
- Confirm local depressurization and venting procedures before switching
Typical Applications
Petrochemical media switchingSteam turbine isolationRefinery maintenance blinding
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