High Pressure Pipeline Blocking Airbag Precautions

• Clear the pipeline opening to a length greater than the length of the pipeline blocking airbag. Remove oil, sand, concrete and other substance inside the pipeline to ensure the interior is clean and free of burrs, to avoid affecting the blocking effect or even puncturing the airbag.
• During the use of the product, it is prone to scratches and punctures. To ensure the safety of construction personnel, after airbag blocking, an alternative plan must be in place in case of airbag damage after the plug is inflated, before proceeding with construction.
• It is strictly prohibited to rely solely on the inflatable plug for sealing before allowing personnel to enter the pipeline.
• For blocking at a water depth of up to 5 m, an airbag pressure of 0.1–0.15 MPa is recommended; For blocking at a water depth of up to 10 m, an airbag pressure of 0.13–0.2 MPa is recommended.
• The function of the cast steel inflatable pull ring is to pull the steel wire rope (No. 14 and above), and the airbag needs to be fixed at the wellhead to prevent displacement.
• The airbag must be used within the same model of pipeline and must not be substituted with a smaller size.
• When inflating, pay attention to the pressure gauge and do not exceed the pressure limit.