API standard 650 special tank data sheets

Anti corrosion of API standard 650 special tank:
After using for a certain period of time, it is necessary to check the corrosion protection of the API standard 650 special tank. If necessary, the outer wall of the metal oil tank should be painted with new anti-corrosion paint to ensure that the outer wall of the API standard 650 special tank does not fall off and has good waterproof and rust resistance.
API standard 650 special tank cleaning:
The long-term use of API standard 650 special tank will produce impurities on the tank wall and deposit on the tank bottom, resulting in tank corrosion to leakage. According to the safety standard of oil tank, the API standard 650 special tank shall be cleaned and derusted regularly to ensure the quality of oil stored and the safety of oil tank equipment.

Inspection of Butt-welds in Piping
Butt-welds in piping and in API standard 650 special tank pipe fittings within the limitations of 1.3.2 (including the annular space of double- wall tanks) shall be inspected in conformance with API 620 oil tank standard Q.7.7.2 through Q.7.7.6. Longitudinal welded joints in piping that contains liquid shall be completely radiographed except for manufactured pipe welded without filler metal, 12 in. or less in diameter, which is tested hydrostatically or by eddy current to ASTM requirements.

This API 650 tank standard does not present orstablish a fixed series of allowable tank sizes: instead, it s intended to permit the purchaser to select whatever size API standard 650 special tank tank may best meet his needs.

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