Storage Tank Bottom Drain Comparison: Choosing the Right Option

Having complete bottom drainage in a storage tank is key for safety and proper tank maintenance. Drawbacks of Metallic Bottom Drain FittingsTraditional metal threaded bottom tank drain connections have these drawbacks: Molding an alloy ring into the bottom of the storage tank causes inconsistencies and adds stress to the tank. It weakens the tanks structural integrity at the highest pressure load of the tank – the bottom sidewall. Multi-part and multi-material components and construction have different thermal expansion and contraction coefficients.Full drainage isnt possible- tank is not effectively cleaned with all sediments flushed from tank due to a sizeable lip molded underneath the insert.

Image courtesy of