LNG (Liquefied Natural Gas) is a key driver of the global energy transition.
Across every stage of an LNG system—
from cryogenic liquid storage and low-temperature transfer
to vapor return and high-pressure natural gas distribution—
valves must deliver exceptional reliability, sealing performance, and safety.
In the LNG industry, every material selection and design choice is a safety decision.
LNG facilities continuously face:
· Cryogenic temperatures (liquid LNG at approx. –162°C)
· Two-phase flow transitions between liquid and vapor
· High-pressure natural gas distribution after vaporization
· Rapid temperature and pressure cycling
· Potential ignition risks
· Corrosive, vibrating, and harsh marine/terminal environments
Valves are not just flow-control components—they are the core of system safety and operational stability.
🔥 Three Major LNG System Challenges — Solved by Anson Flow
Pain Point 1: Material Stability & Sealing Reliability in Cryogenic Service (Liquid LNG Section)
Liquid LNG operates between –162°C and –196°C.
At these temperatures, standard industrial valves may experience material shrinkage, seal hardening, stem leakage, or packing failure.
Anson Flow Cryogenic Valves — Engineered for Liquid LNG & Liquefied Gases
🔵 Cryogenic Floating Ball Valves
· AF-36C (3-Piece Floating Ball Valve, Direct Mount)
· AF-51C (ANSI/JIS Flanged Floating Ball Valve)
· AF-53C (DIN PN10/16/25/40 Floating Ball Valve)
· BS 6364 cryogenic certification
· PCTFE seat rated to –196°C
· Extended bonnet to minimize cold-bridge effect and packing freeze
· Suitable for LNG, LPG, liquid natural gas, LOX, and other cryogenic media
👉 All Anson Flow cryogenic ball valves are Floating Type. No trunnion cryogenic models.
🟠 Cryogenic Globe / Gate Valves
Also available for cryogenic isolation requirements in auxiliary low-temperature sections.
(Not BS 6364 certified and without PCTFE seats)
Pain Point 2: Pressure Fluctuations & Liquid–Vapor Two-Phase Flow
During tank loading/unloading, LNG bunkering, or vapor return,
rapid transitions between liquid → flashing → vapor can result in:
· Seat wear
· Unstable operating torque
· Reduced shut-off performance
Anson Flow’s Solution
· Floating ball valves naturally compensate for pressure variation and maintain sealing
· Optimized ball-seat geometry reduces two-phase flow impact
· Ideal for:
o LNG tank piping
o Bunkering loading arms
o Truck / ISO tank operations
o Vapor return & regasification pipelines
Pain Point 3: LNG Facilities Require Long Continuous Operation with Limited Maintenance Windows
Terminals, bunkering stations, and industrial gas facilities demand long-term reliability under both cryogenic and high-pressure conditions.
Anson Flow’s Advantages
· Cryogenic Floating Ball Valves + PCTFE seat + Repair Kit → longer service life & shorter maintenance downtime
· ISO direct-mount design for easy automation integration
· Taiwan manufacturing → stable production & delivery
· OEM and private-label assemblies available
· Compliant with common specifications in gas plants, energy facilities, and EPC projects
🚀 Not Just Cryogenic — Anson Flow is a Valve Supplier for the Entire LNG System
Many believe “LNG = cryogenic valves only.”
In reality, a large portion of LNG infrastructure involves ambient-temperature and high-pressure natural gas,
which requires different types of industrial valves.
That’s why Anson Flow provides a complete valve portfolio for the entire LNG supply chain:
🔵 Cryogenic Section (Liquid LNG) — Use Cryogenic Series
Suitable for: liquid lines, cryogenic loading/unloading, early vapor-return stages
· Cryogenic Floating Ball Valves (BS6364 + PCTFE)
· Cryogenic Globe / Gate Valves
🟢 Ambient / High-Pressure Gas Section (After LNG Vaporization) — Use Industrial Valves
Suitable for: natural gas distribution and downstream industrial applications
· Fire-Safe API 607 Ball Valves
· High-Pressure Ball Valves (up to 6000 PSI)
· Metal-Seated Valves (abrasion-resistant for gas with particulates)
· Gate / Globe / Check Valves (isolation / regulation / backflow prevention)
· OEM Custom Components
· PFA-Lined Valves (for downstream chemical processing if applicable)
🌍 Where Anson Flow Valves Are Used in LNG Infrastructure
Cryogenic / Liquid LNG Applications
· LNG storage tank liquid & vapor lines
· LNG loading/unloading & bunkering
· Cryogenic vapor-return lines
· LNG / LPG / LOX storage systems
Ambient / High-Pressure Gas Applications
· Natural gas pipelines after vaporization
· Gas-fired boilers & industrial burners
· Natural gas for industrial processes
· Bypass & blowdown systems
· Ambient vapor lines inside terminals
· Natural gas recovery systems
Anson Flow supports the entire LNG infrastructure — not just the liquid section.
📩 Contact Us — Let’s Select the Right Valve Package for Your LNG System
Tell us your media, temperature, pressure, end connection, and operating requirements,
and we will recommend the ideal combination of cryogenic and industrial valves for your LNG application.
📧 sales@ansonflow.com
🌐 https://www.ansonflow.com