Cryogenic butterfly valve

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.

Specifications:

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

Buttweld ends ASME B16.25; EN 12627

Buttweld top entry ends Vanessa standard

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