Quality in the pulp and paper industry improves

Valve supplier Bilfinger Intervalve Africa succeeded in improving the steam system of a paper mill for an increase in efficiency and productivity and a reduction in operational costs.

The emergence of smart positioners on control valves, as well as emergency shutdown valves, has additionally enabled clients to attain an increase in their benefits.

Using the downloaded information from the device, either from advanced diagnostics or online performance diagnostics, allows maintenance programmes to be adjusted to cater to the more problematic valves. This will prevent the removal and stripping of valves that are in good condition, which reduces costs and time spent on repairs. Overlaying downloads obtained from valves over time will assist the client in moving to predictive maintenance and reducing expensive stock holding of spares.

In the initial stages of a project, Steinmüller Africa carries out careful consideration of the selection of control valves for their clients, ensuring that it carries out the correct function, and is the correct style and size. Since certain valves have been specifically designed to operate in different applications – valves used in incorrect applications can lead to undesirable process variability. Incorrect valve selection can lead to cavitation or flashing damage, excessive plant noise and poor control in areas such as basis weight, affecting paper quality. Incorrect sizing of the control valve could result in the valve not operating in a good control range, leading to the possibility of excessive wear and loss of controllability.

Through Steinmüller Africa’s expertise, all three prime components of the control valves, the valve body, actuator and positioning, work in harmony with one another to fulfil the client’s control requirements.

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