Cryogenic Service
Cryogenic valves face demanding conditions where extreme cold causes material contraction, seal failure, and potential leakage. Ball valves, though compact and efficient, are particularly vulnerable because seat and stem seals can harden or shrink below −196°C, compromising tight shutoff.
Your Trusted Experts for Cryogenic Applications
AC Valve Alliance Group are a good partner for cryogenic valve supply because we combine our deep application knowledge with proven technical capability in extreme low-temperature services. With our key suppliers we focus on cryogenic ball valves with designs optimised for tight shutoff, low torque and reliable operation down to LNG and liquid hydrogen temperatures. Careful material selection, extended bonnet designs and compliance with cryogenic test standards ensure safety, uptime and lifecycle value for operators. Backed by responsive engineering support and flexible manufacturing, this enables tailored valve packages that integrate into complex gas, LNG and hydrogen systems.
Why choose ACV?
Cryogenic system designers and operators want valve suppliers who de-risk their operations
We provide technically correct, fully compliant valves delivered on time, with expert support across the whole lifecycle as a long-term partner rather than a one-off sale.
Rapid Customisation Expertise
Actuate, modify and test valves to exact specs with fast-track delivery options.
Complete Project Supply
A dedicated projects team means that ACV can supply a complete package of valves, automation, controls and fabricated skids with all required documentation. The ability to source, expedite and inspect globally ACV is a true project partner.
Extensive supply chain
No single valve can provide solutions to every application. Our extensive global supply chain allows us to offer products to meet specific client requirements.
UK Manufactured Valves
At AC Valve Alliance we not only stock a wide range of products but also have the capability to design, manufacture and test valves to meet specific requirements utilising 100% Western European materials.
One of Europe's Largest Valve Stocks For Immediate Delivery
Our large valve stocks allow immediate delivery of ball, plug, butterfly, gate, relief, check, and control valves tailored for tank terminals along with In-House Customisation & Testing giving the ability to Actuate, modify, and rigorously test products to meet exact Customers and international specs and satisfy fast-track delivery requirements. For projects, a dedicated team for quotation, sourcing, expediting and inspection backed up by UK based project engineers, and document controllers to keep complex projects on schedule.
See how we do it
Our Process
We are a problem-solving company, focused on making your projects more efficient, reliable, and cost-effective.
ACV provides a complete, end-to-end solution for valve and automation requirements. From initial project scoping and technical analysis through to final delivery and on-site support, we manage the entire process to reduce risk, simplify procurement, and ensure performance.
Initial enquiry
Our process begins with a detailed customer enquiry, including project scope, specifications, and any known technical requirements. We gather and review all relevant information to determine the most suitable solution for the application.
Quotation
We provide tailored quotations aligned to project complexity, specification, and timescale. Flexible quotation formats streamline customer evaluation and approval, ensuring clarity, consistency, and efficiency throughout the decision-making process.
Stock & Engineering Solutions
Where possible, we supply directly from stock to support fast-track requirements. We can also modify existing stock or source, design, and manufacture solutions to meet specific application needs. Our engineering expertise ensures products are optimised for pressure, temperature, media, and duty requirements while meeting relevant industry standards.
Compliance & Testing
All components undergo rigorous testing in our dedicated facilities to verify performance, integrity, and compliance. Testing regimes are selected to suit the application and may include pressure testing, leak testing, and functional verification to ensure reliability in service.
Order Management
Efficient order management is central to our process. Orders are tracked, coordinated, and fulfilled with care, ensuring correct procedures are followed, milestones are met, and operational integrity is maintained throughout.
Packing & Documentation
Each project is packed in line with customer and project requirements. Full documentation is supplied to support traceability and compliance, including certificates, test reports, and quality documentation as required.
Cryogenic valve services
Project Supply
Starline Valve Manufacturing
Valve Automation
Valve Modification
Valve Testing
Solving challenges in cryogenics
Challenge
Standard valve testing specifications call for the use of water, air and occasionally Nitrogen when testing valves.
Solution
At AC Valve Alliance Group we have invested heavily in test equipment, ranging from hydrostatic to high pressure nitrogen and on to Helium leak testing measured using our Leybold Phoenix Quadro Helium leak detector which is capable of recording leakages at extremely low levels down to 5.000 × 10⁻¹² mbar·l/s. We will shortly have available specific Hydrogen leak testing to further push the limits of leak detection.
Challenge
Many of the leading Valve manufacturers have deliveries in excess of 26 weeks, some more than 52.
Solution
At AC Valve Alliance we hold substantial stocks of valves up to 24” and ANSI class 2500 with a variety of end connections with a number of material options. Added to this we have extensive automation and modification facilities backed up with our manufacturing capability.
With valves required to operate under a wide range of Pressures, Temperatures and Media ranging from ambient to complex mixes of Low temperature and entrained solids we can evaluate most applications and recommend the correct valve type, materials and configurations to suit.
Within our test are we have the ability to carry out fugitive emission testing on Helium to verify both stem sealing but also body joint sealing.
Not only do we hold large stocks of Valves but also Pneumatic and Electric Actuators allowing us to automate almost any valve required.
Most Valves are supplied as standard with 3.1 Material and Test Certificates, along with Installation, Operation and Maintenance Manuals.
We can provide a wide variety of project documents, for example:
- General Arrangement Drawings with Bill of Material
- Schematic Drawing
- Hook-up diagram
- Test Procedures
- NDE Reports
- ATEX Certification
- Firesafe Certification