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China Suppliers Factory Class 300 Forged DBB Trunnion-Mounted Ultra-Low Temperature Ball Valve for Cryogenic Applications
Key Features
Leak-Free and Safe Design
Double-Block-and-Bleed (DBB), Anti-Static, Fire-Safe, Anti-Blowout Stem, and Low Fugitive Emission Packing ensure maximum safety and leak prevention in critical applications.
Reliable Cryogenic Performance
Engineered to perform in extreme cold conditions down to -196°C, with PCTFE Cryogenic Seats and Lip-Seal Compensation for a tight, leak-free seal even under low temperatures.
Durability Under High Pressure and Low Temperature
Forged trunnion-mounted design ensures durability and reliable operation at temperatures as low as -46°C, with resistance to both low temperatures and high-pressure conditions.
Stringent In-House Cryogenic Testing
Every valve undergoes rigorous in-house cryogenic testing to guarantee reliable, leak-free operation and performance in the most demanding low-temperature environments.
Wide Application Range
Ideal for cryogenic fluids such as LNG, Liquid Nitrogen (LN₂), Liquid Oxygen (LOX), Liquid Hydrogen (LH₂), and other high-flow fluids, as well as industrial pipelines and large storage tanks.
Customizable Materials and Sizes
Available in a variety of sizes (2" to 36", DN50 to DN900) and materials such as A350 LF2, F316(L), Inconel 625, Hastelloy C, etc., to meet specific industry needs.
Frequently Asked Questions
QWhat does Double-Block-and-Bleed (DBB) design mean for cryogenic ball valves?
DBB design means the valve provides two independent seating surfaces that simultaneously block flow from both sides, while a bleed port in the middle cavity allows pressure to be safely vented. This ensures a high level of isolation and leak prevention, making it ideal for critical cryogenic and high-pressure applications.
QWhat is the minimum operating temperature these cryogenic ball valves can handle?
These valves are engineered to perform reliably at temperatures as low as -196°C, thanks to PCTFE Cryogenic Seats and Lip-Seal Compensation technology. Forged trunnion-mounted designs also provide reliable service down to -46°C under high-pressure conditions.
QWhich cryogenic fluids are these valves compatible with?
These valves are designed for use with a wide range of cryogenic fluids, including LNG (Liquefied Natural Gas), Liquid Nitrogen (LN₂), Liquid Oxygen (LOX), and Liquid Hydrogen (LH₂). They are also suitable for high-flow industrial fluids, pipeline systems, and large storage tank applications.
QWhat size and material options are available for these cryogenic ball valves?
Valves are available in sizes ranging from 2" to 36" (DN50 to DN900). Material options include A350 LF2, F316(L), Inconel 625, Hastelloy C, and other alloys, allowing customization to suit specific temperature, pressure, and chemical compatibility requirements across various industries.
QHow is the quality of each cryogenic valve verified before delivery?
Every valve undergoes stringent in-house cryogenic testing at actual service temperatures to confirm leak-free performance and operational reliability. This rigorous quality control process ensures each valve meets the highest industry standards before leaving the facility.
QWhat safety features are included to prevent stem blowout and fugitive emissions?
The valves incorporate an Anti-Blowout Stem design that mechanically prevents the stem from being ejected under pressure, and Low Fugitive Emission Packing that minimizes leakage to the atmosphere. These features comply with stringent environmental and safety standards, making them suitable for regulated and sensitive industrial environments.