S&N Environmentally Sensitive Anti-Fouling Equipment
The SNSAFE system is designed to reliably and safely inhibit marine growth fouling in seawater pump systems on ocean going vessels, offshore platforms, offshore drilling rigs, and shoreline installations.
The system, based on the electrolytic principle, is recognized worldwide as an effective method for prevention of bio-flouling.
Barnicle Growth in
Seawater Piping
Typical Sea Life Growth
on Pump Intake
Marine growth fouling in seawater pumping systems is the cause of many operational problems:
- Reduced pump life due to clogged intake areas
- Accelerated corrosion on metal surfaces after barnacle attach
- Compromised downstream equipment due to restricted piping manifolds
- Frequent cleaning of caissons, piping, and strainers
Various types of marine fouling exist - ranging from bacteria and fungi, to free swimming animal larvae. Once the larvae is allowed to enter and adhere to the interior walls of the seawater system, they begin to grow and colonize. If this natural process goes unchecked, a partial or complete blockage in the sea water piping is inevitable.
SNSAFE System Advantages
- Automatic Operation
- Minimal Maintenace
- Superb Fouling Prevention
- Pre-calculated Anode Life
- Environmentally Safe
- Low Initial Cost
- Low Operating Costs
- Replaceable Anodes
SNSAFE Principle
Altenative methods in combating marine growth are availale. Chlorination - the most commnon - requires acids and other harsh chemicals that are harmful to humans, non-targeted marine life, and ultimately results in the corrosion of your systems.
Chlorination effects on pumping equipment
The SNSAFE system effectively utilizes copper ions to deter the entry and growth of fouling organisms by delivering an impressed DC current from an automated power converting controller panel to copper anodes strategically placed in sea chests, strainers, pump intakes, etc.
The passage of DC current through the anodes causes a release of copper ions into the flow of seawater at a predetermined rate. The copper ions (less than 25ppb) deter the entry and growth of fouling organisms downstream from the anodes or downstream from the treated water introduction point.
Power converting controller panel in NEMA 7/9 Enclosure
Some installation utilize aluminium anodes in conjunction with the copper anodes. The aluminium anodes dissolve simultaneously with the copper anodes and create a protective film on ferrous seawater systems to inhibit corrosion.
Service
S&N Pump Co. provides a complete design service to custom fit an SNSAFE system to the client's application.
SNSAFE System Options
