A virtually maintenance-free valve with tightness, operability and torque demand unaffected by cryogenic conditions and severe temperature fluctuations
Series 30,000 Triple Offset Valves (Cryogenic Configuration)
Vanessa Series 30,000 (Cryogenic Configuration)

Specs

Sizes
DN 80 - 1800 (NPS 3 - 72)
Pressure ratings
ASME class 150 - 900; EN PN 10 - 160
Temperature range
-254°C to +250°C (-425°F to +482°F)
Design Standards
API 609, EN 593; ASME B16.34, EN 12516
Flange Standards
ASME B16.5/ASME B16.47; EN 1092-1
Face to face
ISO 5752; EN 558; ASME B16.10; API 609
Face to face
ISO 5752; EN 558; ASME B16.10; API 609
Buttweld ends
ASME B16.25; EN 12627
Buttweld top entry ends
Vanessa standard

Features

  • 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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