WHERE FAILURE IS NOT AN OPTION
The Unforgiving Nature of Cryogenic Service
1
Material Embrittlement
At cryogenic temperatures, conventional metals lose ductility and can fracture catastrophically under pressure or impact, leading to critical asset failure.
2
Trapped Fluid Expansion
Residual liquid trapped in valve cavities can rapidly expand when warming, creating immense internal pressure that may lead to body rupture and hazardous leaks.
3
Critical Seal Failure
Extreme thermal contraction causes typical sealing materials to shrink and harden, compromising their integrity and resulting in dangerous leakage.
Valve Stem Freezing
Ice buildup from atmospheric moisture can seize the valve stem, rendering the valve inoperable and hindering critical process control and emergency response. Additionally, the freezing of packing also causes fugitive emissions.
How We Engineer to Conquer the Cold
Every Neway cryogenic valve is a synthesis of advanced design, material science, and rigorous testing, built to deliver uncompromising safety and performance.
Advanced Cryogenic Material Science
To prevent embrittlement, we use specialized austenitic stainless steels qualified by in-house Charpy impact testing at -196°C. This guarantees every component exceeds global standards for toughness and ductility.
Signature Extended Bonnet Design
Our signature extended bonnet isolates the stem packing from cryogenic temperatures via an insulating vapor column. This design prevents stem freezing, ensuring continuous smooth operation and a reliable seal.
Specialized Low-Temp Sealing
Our lip-seal design utilizes materials like PTFE that remain flexible at -196°C. It operates on the principle of actively compensating for thermal contraction, with its performance verified by helium leak testing.
Integrated Overpressure Protection
An integrated pressure-balancing hole or a dedicated cavity relief system automatically vents pressure from trapped fluid expansion. This critical safety feature prevents catastrophic body rupture.
High-Performance Triple Offset Geometry
The triple offset geometry provides a friction-free, cam-like seating action. This eliminates seal wear and ensures a repeatable, bubble-tight shutoff, delivering superior reliability for large-diameter cryogenic butterfly valves.
Non-Slam Axial Flow Dynamics
The spring-assisted axial check valve provides rapid, non-slam closure to prevent damaging pressure surges. This design protects pumps and upstream equipment from cryogenic shock while maintaining a low-pressure-drop, linear flow path.
TRUSTED ACROSS INDUSTRIES
Proven Reliability in Demanding Applications
LNG (Liquefied Natural Gas)
Providing critical valve solutions for the entire LNG value chain, from liquefaction and transport to regasification terminals.
Air Separation
Ensuring the safe and efficient handling of industrial gases like LOX, LIN, and LAR in air separation units and cold boxes.
Petrochemical
Delivering reliable flow control for low-temperature processes including Ethylene, Propylene, and LPG production.
Aerospace & Research
Trusted in high-stakes applications including rocket propellant systems, advanced test stands, and scientific research facilities.
FUNCTION-DRIVEN SOLUTIONS
Valves for Your Critical Process Functions
Select a process function below to find the ideal Neway valve solution for your specific application.
Solution One
Solution Two
Solution Three
Solution Four
Reliable On/Off & Mainline Isolation
For applications requiring full-bore, unobstructed flow and bubble-tight shutoff with minimal pressure drop.
Typical Applications:
LNG tank farm main lines
ASU cold box isolation
Main process headers
Rapid & Fail-Safe Shutdown
For safety-critical systems (SIS/ESD) demanding quick, quarter-turn actuation for immediate process shutdown.
Typical Applications:
LNG loading/unloading arms
Fuel bunkering systems
Emergency isolation points
Precise Flow Throttling & Regulation
For accurately regulating process flow, pressure, or temperature within a sophisticated control loop.
Typical Applications:
ASU distillation column control
LNG liquefaction loops
Cryogenic test stand flow control
Automatic Backflow Prevention
To automatically prevent reverse flow and protect critical upstream equipment like pumps and compressors without external power or actuation.
Typical Applications:
LNG submerged pump outlets
Compressor discharge lines
Cryogenic liquid transfer lines
GLOBAL STANDARDS, PROVEN PERFORMANCE
Certified Quality, Tested Reliability
Our commitment to excellence is validated by the world's most stringent industry standards and proven in mission-critical projects globally.
