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FISHER, Isolation and Shut off Valves
Vanessa Series 30,000 Cryogenic Triple Offset Valve
The Vanessa Series 30,000 Cryogenic Triple Offset Valve is a virtually maintenance-free valve with tightness
operability and torque demand unaffected by cryogenic conditions and severe temperature fluctuations.
- Body Design
- Short Pattern, Top Entry, Welded Body
- Stainless Steel
- Operating Temperature
- Pressure Class
- ASME, PN
- Process Connection Type
- 150RF, 300RF, 600RF, 900RF
- Seat/Seal Type
- Metal-to-Metal, Cryogenic
- Shutoff Class
- API 598, Zero Leakage, Class IV (FCI 70-2), Class V (FCI 70-2), Class VI (FCI 70-2)
- API 609, ASME B16.34
- Emergency Shutoff Valves, Switching Valve
- Valve Size
- NPS 10 / DN 250, NPS 12 / DN 300, NPS 14 / DN 350, NPS 16 / DN 400, NPS 18 / DN 450, NPS 20 / DN 500, NPS 24 / DN 600, NPS 3 / DN 80
- Valve Size Standard
- DN, NPS
- Valve Type
- Triple Offset Valve, Cryogenic Valve
- Non-rubbing 90-degree rotation and metal-to-metal torque seating provide bi-directional zero leakage tightness to ISO 5208, EN 12266-1 and API 598.
- Bolted extended bonnet protects packing from cryogenic service temperatures.
- Forged one-piece Nitronic® 50 metal seal ring ensures high corrosion resistance and keeps important mechanical features at low temperatures.
- Buttweld top entry design allows access without removing the valve body from the line.
- Stellite® grade 21 overlay seats are maintenance-free.
- Robust and fire-resistant all-metal construction.
- Spot-faced flanges ensure maximum joint-to-pipe integrity.
- Robust one-piece shaft designed to transfer/maintain torque efficiently.
- Two-piece packing gland and graphite packing minimize external emission risk.
- Key secured shaft-to-disc connection for maximum shaft integrity.
- Heavy duty bearings withstand high pressure loads and wear.
- Braided graphite bearing protectors prevent dirt intrusion, ensuring constant running torque and valve operability.
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