overdrukbeveiligingen

Overdrukbeveiligingen, also known as overpressure protection devices, are safety mechanisms designed to prevent excessive pressure build‑up in pressure vessels, pipelines, and process equipment. By automatically venting or shutting off the system when pressure exceeds a predetermined limit, they protect structural integrity, equipment, and personnel.

These devices come in several common forms. Relief valves, for example, equalise pressure by opening a calibrated orifice once the set pressure is reached. Pressure safety switches sense over‑pressure and stop pumps or actuators. Burst discs are one‑way, sacrificial membranes that rupture at a specific pressure to relieve the system. PDAs (process and danger analyzers) monitor pressure continuously and can trigger external control systems for a coordinated shutdown.

When selecting an overdrukbeveiliging, engineers consider absolute pressure rating, temperature range, fluid properties, and flow capacity. Standards such as IEC 60079, API 520, and JIS T 8665 provide testing methods and performance criteria. Installation must comply with local regulations, ensuring proper mounting, clear line of sight, and sufficient venting.

Maintenance involves visual inspections for corrosion, damage, or misalignment, as well as pressure‑test verification. Maintenance intervals depend on design pressure, operating conditions, and the type of device. Overpressure events, if not mitigated, can lead to catastrophic failures, hazardous releases, or loss of life. Therefore, routine testing and prompt replacement of exhausted devices are critical for safety and regulatory compliance.

In industries such as oil and gas, petrochemicals, and power generation, overdrukbeveiligingen are mandated by safety codes to guarantee that pressure systems remain below their design limits. The combination of proper selection, installation, and maintenance ensures reliable performance and protects both people and assets.