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

Viewing area – 3,15x14,96 in. Box rubber thickness – 0,98 in.

тавровый сварной шов

угловой сварной шов

The vacuum box could be used for checking:

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

• Patented in-house design for convenient control and low energy consumption of the testing operator.
• Convenient system of air pumping out and in within a single push of the handle which makes the operating fast and comfortable.
• 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).
• It is suitable for operating with any kind of vacuum pumps.
• Valve handles basically are completed with barb connectors, but could be completed at customer’s option with a quick – detachable connector which makes in-operating vacuum box changing very fast.

• vacuum box with arrow vacuum indicator gauge and valve 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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