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Renowned for its best-in-class accuracy and intelligent communication capabilities, WITT’s dome-loaded pressure regulator has just become even more advanced. The new COLDSTOP SMART system now detects critically low temperatures and automatically halts gas flow to protect piping infrastructure. Developed specifically to safeguard downstream equipment from brittle fractures, this innovative upgrade sets a new standard for safety, efficiency, and remote monitoring in cryogenic applications.
Maximum Protection for Cryogenic Systems
COLDSTOP SMART tackles a key challenge in cryogenic gas systems: the danger of extremely low temperatures in the pipework downstream of the vaporiser, which can lead to brittle fractures in mild and carbon steel components. Unlike conventional mechanical switches, which rely on less accurate bi-metallic strips, COLDSTOP SMART features integrated digital technology combining WITT’s dome-loaded pressure regulator, solenoid valves, and a control unit. It halts gas flow as soon as the temperature drops below a defined setpoint, and automatically resumes once safe conditions are restored. This ensures reliable protection in line with EIGA, CGA, and AIGA standards for cryogenic vaporisation systems.
Enhanced Safety, Efficiency, and Visibility
With its class-leading pressure control and precise automatic shut-off at critical temperatures, COLDSTOP SMART significantly improves operational safety. By preventing damage to costly assets and reducing the risk of sudden system failures, it helps to minimise downtime and maintenance costs, ultimately extending the life of both piping and equipment.
The system is also designed for remote monitoring and easy customisation. It delivers real-time data on flow, pressure, and temperature via 4–20 mA signals and RS485 communication—ideal for integration with cryogenic tank telemetry systems. Operators can configure alerts and responses, such as triggering alarms or engaging additional vaporiser capacity, offering complete oversight and control.
Standards Compliance and Next-Level Safety
COLDSTOP SMART is fully compliant with harmonised EIGA, CGA, and AIGA guidelines for preventing brittle fracture in cryogenic systems, and also carries the CE mark for quality assurance.
“Our dome-loaded pressure regulator is already one of the most accurate on the market, capable of real-time data transmission. With the addition of temperature-based flow control, it now delivers an even higher level of safety,” said Andrew Smart, Sales Director for Gas Safety Equipment at WITT.
COLDSTOP SMART offers a future-ready solution for cryogenic system operators, combining precision, intelligence, and peace of mind.
For more information on Safeguarding Cryogenic Systems with Smart Temperature Protection talk to WITT Gas Techniques Ltd