7.15　Throat Temperature Measuring Device

General Items

7.15.1　The packing（backing）seal on flange face between cross temperature-measuring device and furnace shell shall meet the requirement in the design documents.They shall be closely contacted.The flange and connecting bolt shall be installed according to current national standard GB 50235 Code for Construction and Acceptance of Industrial Metallic Piping.

Check quantity:full check.

Check method:observe and trial fastening by spanner，check with a feeler gauge.

7.15.2　The allowable installation deviation of cross temperature-measuring device shall meet the requirements in Table 7.15.2.

Check quantity:full check.

Check method:see Table 7.15.2.

Table7.15.2　Allowable installation deviation of cross temperature-measuring device（mm）