API 650 anchored tanks primary roof drains

The lip seal of floating roof storage tank, API 650 anchored tanks relies on the sliding contact between elastic lip and tank wall. This kind of seal has strong applicability, but the requirements of manufacturing technology and material selection are high, and the determination of elastic seal also exists. The secondary seal of floating roof storage tank, API 650 anchored tanks is to add a seal on the basis of primary seal. It is proved by experiments that the secondary seal can reduce the liquid consumption by more than 50%, and has a more significant effect in safety.

Tanks which are designed following rules and guidelines of API 650 are API 650 tanks. API 650 API 650 anchored tanks is the governing code for Welded tanks for Oil storage normally operating in the atmospheric pressure range. The code API 650 provides guidelines for design, fabrication, material, erection, and inspection of welded vertical and cylindrical storage tanks. Such API 650 anchored tanks Tanks must be above ground with a closed or open top.

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