RAMA modular maintenance bellows seal globe valve for nuclear reactors
- Product Line
- Velan SAS nuclear valves
- Product Type
- Globe
Features & Benefits
Qualified by DCN (the French Naval Authority), this valve is recommended for severe applications. Special feautures include:
- Removable bellows-cover sub assembly
- Bellows leakage indicator
- T-pattern or Y-pattern bodies available
ADDITIONAL RAMA FEATURES:
- One-piece forged body for more safety and reliability
- Removable seat
- Removable guided disc
- Advanced cage profile allows high flow coefficient Cv
- Enhanced stem seal with load checking system
REMOVABLE SEAT
- Unaffected by solicitations of the body
- Body-seat graphite gasket fitted with an extrusion prevention device
- Gasket load controlled by a metal-to-metal compression stop
- Available with different qualified hard-facing alloys
OPERATION AND MAINTENANCE
- In-line maintenance in less than 15 minutes
- High and permanent level of tightness with any fluids
- Cobalt free for nuclear service
- Trim and packing removal without tools
- Removable seat
- Disc and stem easily dismountable
- No welds to cut and reweld; no lapping
ADVANTAGES
- Fast and easy maintenance
- Low operating costs thanks to low maintenance
- Low fugitive emissions
- Low radioactive exposition due to fast maintenance
- Standardized components
Product Details
| Spec | Detail |
|---|---|
| Size Range | NPS 1/4 - 2 (DN 8 - 50) |
| Pressure Class | ASME Classes 150 - 1500 |
| Standard Connections | Butt weld |
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