6.16　Bellows and Main Exhaust Tube

General Item

6.16.1　Preset expansion clearance between tie beam of bellow and lateral beam of framework of sintering equipment shall meet requirements of design technical document.

Check quantity:to check all.

Inspection method:to inspect，to check with fill gauge.

6.16.2　Welding quality must meet requirements of IV class weld seam quality standard in current national standard GB 50236 Code for Construction and Acceptance of Field Equipment and Industrial Pipe Welding Engineering.

Check quantity:spot check 20% weld length.

Inspection method:to inspect，to check weld seam with gauge.

6.16.3　Expansion joint status after installation shall be in a free status，free from any external force.Expansion quantity and inlet and outlet direction shall meet requirements of design technical document.

Check quantity:to check all.

Inspection method:inspection.

6.16.4　Compression of spring hanger of branch pipe shall meet requirements of design technical document.

Check quantity:to check all.

Inspection method:to check installation quality records or to take actual measurements.

6.16.5　Tolerance for bellow installation shall meet requirements in Table 6.16.5.

Check quantity:spot check 20%.

Inspection method:see Table 6.16.5.

6.16.6　Tolerance for installation of main exhaust tube shall meet requirements in Table 6.16.6，see Figure 6.16.6.

Check quantity:Spot check 20%.

Inspection method:see Table 6.16.6.