Corner vacuum box with arrow vacuum indicator gauge and handles. The box aims at the leak test which is based on the bubble test and is used on fillet welds (outside corner).

Viewing area – 2,56x2,56x15,75 in. Box rubber thickness – 1,38 in.

corner weld bead (outside corner)

The vacuum box could be used for checking:

• reservoirs,
• boilers,
• pipelines,
• fuel tanks,
• coating,
• other objects with one-sided access.

• Specially designed molded rubber strip makes the contact with the inspected surface more leak-tight. It helps to reach the ultimate degree of exhaustion within the box:-0,09 MPa, which exceeds PNAE G-7-008-89 and PNAE G-7-019-89 standards for IV class leak - tightness (Rules and Norms of Nuclear Power Generation Industry) 
• Operational tests showed that the leak-tightness in the vacuum box is kept for a long time (pressure decrease to -0,08 MPa during 20 min).

• vacuum box with arrow vacuum indicator gauge and handles;
• ticket (with a manual);
• package.

Compliance with standards:

• Patent No. 2636409 dated 11/23/2017 issued by Federal Service for Intellectual Property.

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