Leakage Sensor Typ SVT 05 | Striko

STRIKO SVT 05 Leak Detection Sensor

The SVT 05 is designed for early leak detection in rupture discs or safety valves, prior to full activation of the relief device. It is installed on the vent side and monitors for minor failures such as pitting corrosion, hairline cracks, or seat leakage from the valve.

Operating Principle

The process side features a closed PTFE membrane. Even a slow pressure increase from leakage deforms the membrane and breaks the conductive circuit. This change is transmitted to a PLC, DCS, SIS, or alarm panel as a circuit status change.

Technical Data

• Operating temperature: -30°C to +220°C
• Max current: 50 mA
• Max resistance before activation: 20 Ω
• Conductive path: silver
• Membrane: PEEK
• Product sealing membrane: PTFE
• Gaskets: Klingersil C 4400 or other materials on request
• Cable: Teflon sheath, 2 m length
• Compatibility: STRIKO metallic and graphite rupture discs, as well as discs from other manufacturers.

Difference from SVT 02

The SVT 02 is a burst indicator: it signals when the disc opens. The SVT 05 is a leak sensor: it is used when early detection of minor leakage is required before full rupture or after seat leakage of a safety valve.

ATEX / Intrinsic Safety

STRIKO indicators and sensors are classified as simple electrical equipment when connected to an intrinsically safe circuit. Installation is assessed per EN 60079-11 and EN 60079-14, with appropriate barriers and zone documentation.

FAQ

Does it replace the rupture disc?
No. It monitors leakage or activation; it does not calculate pressure relief.

Where is it used?
In chemical lines, pressure vessels, scrubbers, reactors, and installations where micro-leakage must be detected before loss of containment occurs.