7.3　Hydrocyclone

7.3.1　The installation of hydrocyclone shall be in accordance with the following requirements:

1　The maximum allowable deviation for longitudinal and horizontal centerlines shall be 5.0 mm；

2　The allowable deviation for feeding pipe center elevation shall be±10.0mm；

3　The maximum allowable deviation for perpendicularity shall be 1/1000；slanting installation shall comply with the requirements of equipment technical documents；

4　When installing in groups and rows，relative position difference shall be no more than 5.0mm；

5　Thermal cutting and welding shall not be carried out on the shell of cyclone with lining.

7.3.2　Test run shall meet the requirements of Article 3.0.11 in this code.