Superior Performance
Cryogenic Ball Valves
BS 6364 | Top & Side Entry | BW & Flanged
Qublock cryogenic valves are designed to provide reliable performance under extremely severe applications. The valves are tested in accordance with the BS 6364 standard and have been proven to deliver robust performance during testing.
-196℃ Low Temperature
Offset Design, Tight Shut Off (TSO)
LNG Carrier | LNG Terminal | Liquefied Oxygen Plant
Qublock cryogenic butterfly valves provide ideal performance in LNG carriers, LNG terminals, air separation plants, and other applications requiring reliable cryogenic service. Various valve designs are available, including double, triple, and quadruple offset, as well as butt-welding, flanged, and more.
Global Leader in Industrial Valves | Zero-Leak Valve Technology | Japanese Engineering Excellence | Custom & Standard Solutions | Expertise in Harsh Environments | Over 40 Years of Engineering Expertise | Operate Globally | Exclusive Flowbus Partnership | International Certifications |
INNOVATIVE SPECIAL VALVES
Qublock Technology Co., Ltd. is a global leader in providing advanced industrial valve solutions
Designed to meet the demands of the chemical, petrochemical, energy, refinery, offshore, marine, plant processing, and fertilizer industries. With a reputation for quality, safety, and reliability, we specialize in manufacturing zero-leak butterfly and ball valves engineered for extreme operating conditions, including high temperature, low temperature, high pressure, toxic substances, and abrasive media.
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2011
JAPAN
2012
SOUTH KOREA
2024
INDONESIA
We Operate Globally
With an international presence, Qublock combines technical expertise with headquarters in Tokyo, Japan, and a main production base in South Korea.
As the exclusive partner of Flowbus Corporation, we offer integrated valve automation packages, combining robust mechanical valve systems with innovation actuator technology — simplifying your supply chain with single-source responsibility. Leveraging more than 14 years of industrial valve expertise.
Our Expertise
Based on Japanese technology quality and over decade of experience
Based on strict Japanese technology and know-how that Qublock engineers have acquired through years of experience and study, we focus on challenging applications requiring solutions for high temperature, high pressure, high cavitation, high cycle, corrosive, and erosive conditions with tight shutoff and low emissions.
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Why Choose Qublock?
Since 2011, Qublock Technology has proven expertise in providing custom-made valve solutions, as well as standard products.
We use advanced technology for precise flow control, ease of operation, simple in-line maintenance, and long service life. Our valves are trusted by plant operators, engineering and design companies, and valve agents worldwide to ensure optimal fluid control and emergency shutdown capabilities in critical industrial processes.
Extreme Range from -196°C to 800°C, 150–2500LB
Valve Sizes from 1/2" to 90", Fully Customized
From compact utility lines to mega-scale systems, we deliver valves tailored to your precise specifications.
Japanese Engineering Precision, Made in Korea
Over 40 years of Japanese engineering expertise combined with Korea’s agile manufacturing deliver both quality and speed.
Trusted by Global EPCs & Engineering Firms
Our valves are in service with leading global players across LNG, oil & gas, and chemical industries.
In-House Production Control for Speed & Quality
End-to-end production control ensures short lead times, consistent quality, and traceability.
Certified to International Standards
Compliant with API, ISO, and SIL – meeting the quality and safety requirements of global projects.
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How to Maintain Your Valve for Optimal Performance
Proper valve maintenance is essential to ensure efficiency, longevity, and safety in your processes. Regular inspections, cleaning, and timely replacements help prevent failures, minimize downtime, and maintain peak performance. Keep your operations running smoothly—explore our maintenance guide and enhance your valve reliability today!
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