Flat vacuum box with a vacuum gauge. This vacuum box aims at the leak test which is based on the bubble test and is used on welded joints and flat surfaces.

This box is designed for the vacuum pump POLIGAN and is the cheapest one because of cheaper handles. POLIGAN has electronic pressure regulation unit which makes valve handles or other mechanic regulation units usage unnecessary.

The box is completed with a vacuum gauge and has viewing area of 2,95x22,83 in.

butt welded joint

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.
• 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).
• Larger viewing area (up to 22,83 in) of the vacuum box makes the process of inspecting quicker because of less number of the box pressing.
• It is suitable for convenient operating with the vacuum pump POLIGAN. If other vacuum pumps are used it is required to get an additional pressure regulation unit.
• The 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.

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

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