VpCI-649 BD Liquid Fights Corrosion, Scale, and Odor

VpCI-649 BD combines contact and vapor-phase corrosion inhibitors to protect metal surfaces in direct contact with the treated fluid, as well as those areas above the level of the fluid where the contact inhibitor cannot reach. As the inhibitor flows along in the liquid stream, it releases a corrosion-inhibiting vapor that adsorbs and forms a protective layer on exposed metal surfaces above the level of the fluid. 

Unlike a number of traditional closed-loop inhibitors, VpCI-649 BD does not rely on nitrite, phosphate, chromate or heavy metals to inhibit corrosion. It also contains an acrylic polymer to prevent scale formation and an organic odor-control agent to minimize odor from the growth of bacteria inside the closed loop. It's designed to provide long-term protection for ferrous and non-ferrous metals (steel, copper, galvanized steel, and aluminum) in fresh water, steam, and glycol closed-loop systems.

For operational closed-loop cooling systems, it can be applied starting at doses of 2,500 to 3,000 ppm (0.25 to 0.3%). The liquid is readily water-soluble and its effectiveness at low concentrations provides economical treatment. The presence and concentration in the treated water can be monitored via molybdate tracer, pH or refractometer. When wet lay-up is desired to allow for a quick restart of the system, VpCI-649 can be added at a concentration of 0.5% by volume to provide up to 6 months of protection. Other applications that stand to benefit from VpCI®-649 BD are packer fluids and fire extinguishing systems.

VpCI-649 BD is ideal for corrosive situations where metals are heavily exposed to fluids and where odor-producing bacteria grow. It provides triple action by reducing scale, creating a protective layer against corrosion on metal surfaces above and below the fluid, and performing odor control.