IN-TANK STATIC DRAIN
Charge dissipates from a fluid into points and sharp edges, not flat surfaces. That is why charge does not readily dissipate into the shell of a metal tank – it is flat. Hence the charge accumulates at a rate faster than it would dissipate, and since the static charge relaxes, an incendive spark is most likely while the charging mechanism is active.
This is where the ITSD comes in. The ITSD consists of a stainless steel cable with stainless steel electrodes inserted into the wind of the cable. Post installation, the thousands of electrically sharp points provide a low-resistance path for bound charge to leave the liquid and vapor space. It dissipates the charge on the product, allowing for it to relax much more quickly. Thus accumulation of charge is highly reduced.
Cut out view of floating roof tank with ITSD installed
