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The STOPL-S-F1 DN 500 device is used for the temporary interruption of medium flow in a pipeline, with or without internal overpressure, without any medium leakage.

The device operates on the principle of inserting a plugging head fitted with a sealing element through a drilled opening in the pipeline, shifting it beyond the drilled opening, and then compressing the sealing element until the entire pipeline cross-section is closed, thereby interrupting the medium flow.

The device is mounted perpendicular to the axis of the pipeline using a special fitting installed on the pipeline. The insertion of the plugging head, which is attached to a plugging rod, is carried out by hydraulic telescopic cylinders connected by a crossbeam to which the plugging rod is fixed. Tilting of the rod to position the plugging head beyond the drilled opening is also performed hydraulically.

The device fundamentally employs the characteristic design elements of the STOPL-S-F1 product line, offering the following advantages:

• Fast and simple installation
• Interchangeable cover system
• Bayonet closure of the insertion chamber
• Significant reduction of preparation time for individual technological operations
• High variability
• High level of safety
• Simple bypass solution

Material and dimension of the closed pipeline:
Steel pipeline DN 500

Media:
Natural gas, non-aggressive gases, other media upon consultation with the manufacturer

Maximum medium overpressure during pipeline isolation:
8 bar (0.8 MPa)

Ambient and medium temperature:
-10 / +50 °C

Certification:
Expert and binding opinion of the Technical Inspection Authority of the Czech Republic (TIČR) confirming compliance with the safety requirements for designated technical equipment
EU Declaration of Conformity with Directive 2014/34/EU of the European Parliament and of the Council