Shoulong Valve
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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.
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.
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.
Every valve undergoes rigorous in-house cryogenic testing to guarantee reliable, leak-free operation and performance in the most demanding low-temperature environments.
Ideal for cryogenic fluids such as LNG, Liquid Nitrogen, Liquid Oxygen, Liquid Hydrogen, and other high-flow fluids, as well as industrial pipelines and large storage tanks.
Available in a variety of sizes (2" to 36") and materials such as A350 LF2, F316(L), Inconel 625, Hastelloy C, etc., to meet specific industry needs.
QWhat does Double-Block-and-Bleed (DBB) design mean?
DBB design 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.
QWhat is the minimum operating temperature these valves can handle?
These valves are engineered to perform reliably at temperatures as low as -196°C, utilizing PCTFE Cryogenic Seats and Lip-Seal Compensation technology.
QWhich cryogenic fluids are these valves compatible with?
They are designed for a wide range of cryogenic fluids, including LNG, Liquid Nitrogen, Liquid Oxygen, and Liquid Hydrogen, as well as high-flow industrial fluids.
QWhat size and material options are available?
Valves are available in sizes ranging from 2" to 36". Material options include A350 LF2, F316(L), Inconel 625, Hastelloy C, and other alloys to suit specific requirements.
QHow is the quality verified before delivery?
Every valve undergoes stringent in-house cryogenic testing at actual service temperatures to confirm leak-free performance and operational reliability before shipping.
QWhat safety features prevent stem blowout?
The valves incorporate an Anti-Blowout Stem design that mechanically prevents the stem from being ejected under pressure, alongside Low Fugitive Emission Packing for environmental safety.
