Unfailing reliability in hazardous conditions
Extraordinary reliability is required from safety and on-off valves for burner management systems. Safety is a primary concern and unnecessary shutdowns of a heater can cost hundreds of thousands of dollars a day.
Especially in hazardous conditions, safety shutoff valves must close under all circumstances. The on-off valves in front of the burners are responsible for managing the correct heat temperature. For these valves, reliable switching is crucial to keep operational costs low and increase heater efficiency.
The refinery was looking for valves that met these requirements, would perform like new for a long time, and would meet or exceed the standards for tightness and safety established by the European health, safety and environmental (HSE) regulations. The company also wanted valves which could be maintained as simply and quickly as possible, as even regular inspection and maintenance shutdowns are costly.
In addition, the company required the best possible valve sealing to protect the health of its operators and the environment from fugitive emissions of hazardous and toxic fuel gases.
All these requirements make valve selection for any refinery a challenging task. The customer chose Neles to help them find a truly efficient flow control solution for the entire burner management system.
Together, we selected Neles high-performance valves for the new fuel gas safety shutdown and burner on-off applications. These soft-seated ball valves are designed for highly demanding uses such as fuel line emergency shutoff and switching.
The valves fulfill all safety requirements for combustion and fuel handling systems. Approvals also include the Neles® ValvGuard™ intelligent safety solenoid with partial stroke testing and diagnostic features that provide additional safety and predictive maintenance capabilities.
The valves’ seating design and material ensure long-term bubble tightness that withstands a high number of thermal cycles and valve strokes, exceeding the 250,000-stroke standard for automatic shutoff valves in gas applications. The cavity relief feature enables safe operation even with sudden temperature increases. The shaft sealing design ensures a high level of reliability and safety while achieving low operational costs. The valves are certified according to the most relevant fugitive emission standards.
Smooth implementation, stabilized costs and shorter downtime
With these valves, the refinery has achieved high process stability and safe operation. Their maintenance-friendly design has reduced operational costs and shortened downtime in the refinery.
Additionally, the valves’ complete certification and our support throughout – from overall planning to the smallest details – accelerated the approval process and made the implementation of the new valves extremely smooth.
Written by Sari Aronen. For additional information on the topic, please contact email@example.com
This blog post has been up-dated in July 2020, due to company name change to Neles.