Table of Contents

Cathodic Protection Materials & Services

Cathodic protection is a typical technology used in many sectors to prevent corrosion of metal structures such as pipelines, tanks, steel-pier piles, and offshore oil platforms by using a low electrical current. This approach pulls corrosion-causing electrons away from the structure by transforming the metal surface into a cathode. Cathodic protection, in this way, considerably increases the lifespan of these structures and decreases the need for costly repairs and replacements. This approach is also environmentally friendly because it eliminates the need for hazardous chemicals that are commonly used to limit corrosion.

SPS supplies the following products, Designed and Manufactured according to the highest international standards:

  • Transformer Rectifiers (Oil & Air), Anodes (MMO, Si-Fe, Galvanic), Junction Boxes, and reference Electrodes (Portable & Permanent).

  • Insulation flange kit, Isolation joints, Polarization Cells, Test Stations, DCVG & CIPS Survey Tools And antifouling Systems.

Transformer Rectifiers (Air Cooled / Oil Cooled)

  • Input: 220-240 V ac/ 380 V ac, Or Dual Input.

  • Output: To suit application, please request DC Voltage and Amperage as required.

  • Cooling: ONAN (oil immersed, natural convection air cooled).

  • Control: Manual Thyristor Control, VARIAC Control & Automatic Control.

  • Enclosure: The oil tank is constructed from 2 or 3mm (depending on size) thick mild steel sheet. The oil tank is formed into shape and will be fully on outside seams. Moreover, it can be Manufactured as Carbon Steel Coated, Stainless Steel.

  • Optional: Remote Monitoring Systems, Software interface, GPS timer interrupter, RS485 Telemetry, auto potential control, Removable sunshade, and More features are available on request

  • Classification: Safe Area / Hazardous Area.

Solar Energy

  • Solar Energy Generators for Cathodic Protection applications are designed and built according to the required DC Output, battery bank autonomy and location parameters provided by the client. Each system will comprise of the following elements:

  • Solar Panels.

  • Charge Controller.

  • CP Controller.

  • Batteries.

Sacrificial Anodes (Galvanic Systems)

  • Magnesium Anodes: Mg Anodes are used to for Cathodic Protection in different types of structures (tank / vessel internal / external protection applications). They are manufactured in a comprehensive range of shapes and sizes. Mg Anodes are available in two grades, High purity & Normal Concentration. Mg anode casting has a central steel insert to ensure even dissipation of the anode material over time. The cable connection is brazed to the steel insert and epoxy resin encapsulated. containing a backfill of Gypsum, Bentonite and Sodium Sulphate. The anode and backfill are contained in a cotton bag. And we can supply Bare Mg Anodes ONLY.

  • Magnesium Ribbon Anodes: Mg Ribbon Anodes are used to achieve cathodic Protection of well-coated buried pipelines, internal protection of water tanks, pipeline casing sleeves, AC Mitigation, and temporary cathodic protection. Suitable for use in soil and fresh water. Coil Length: 305 meters, Size Of Ribbon: 19.05 mm x 9.52 mm Diameter of Steel Core: 3 mm

  • Zinc Anodes for (tank internal protection applications): Anodes can be supplied in a range of sizes, weights, and chemical composition to suit your application. Zinc Anodes manufactured in round or flat bar steel insert which is provided with a double crank Or Straight arrangement for direct welding to the structure OR we can also supply with bolts. Zinc Anodes can be Manufactured against specific requirements as well.

  • Zinc Ribbon anodes: Zinc Ribbon provides a very simple, cost effective, maintenance free method of corrosion control for buried or immersed metals like iron, steel, aluminum, copper, etc. In a continuous ribbon containing a steel wire core, zinc has been a highly effective and economical method of protecting a wide variety of underground and underwater metallic systems. All Ribbon dimensions and weights Meet the chemical requirements of ASTM B418-95A Type I for seawater / brackish systems ASTM B418-95a Type II for onshore / soils. Moreover, it can be supplied in different sizes such as Super, Plus & Standard.

  • Aluminum Anodes for (tank internal protection / Offshore Platform applications): Anodes can be supplied in a range of sizes, weights, and chemical composition to suit your application. Al. Anodes manufactured in round or flat bar steel insert which is provided with a double crank Cow Horn arrangement for direct welding to the structure OR we can also supply with bolts. Al. Anodes can be Manufactured against specific requirements as well.

Anode Accessories

  • Power Feed Connector: it can be used for power feed connections under tank grid anode system. The power feed connector connects the DC current feeder cable to the Titanium Conductor Bar. comprises 12.7 mm width x 0.9 mm Thickness x 200 mm length Titanium Conductor Bar spot welded to a 100 mm length of 3 mm dia. Titanium Wire. Encapsulation to the DC feeder cable is made by an epoxy splice kit and line tap connector generally.

  • Cables.

  • Anodes Centralizers.

Welding Machines

  • Spot welding kit: it allows quick and easy connections between the MMO/Ti Ribbon Anode and Titanium Conductor Bar for Impressed Current Cathodic Protection Under tanks.

  • Pin Brazing: Easybond Pin Brazing is ideally suited for many applications including continuity bonding between pipes, across flanges, connection of cathodic protection test and current carrying cables and connection of bracelet galvanic anodes etc.

  • Cable Splice Kit: Used on Cathodic Protection applications including pipelines, tanks, and buried structures. To connect mains cable single core max size up to 95 mm² and branch single core up to 35mm².

  • Thermite Welding: ThermOweld® Cathodic Protection is the most reliable and consistently performing welding metal available worldwide. A wide range of Moulds, cartridges, and accessories for connection of cables onto metallic structures. Applications include bonding, signal, anode, and test connections.

Junction Boxes

Carbonaceous Backfill (Metallurgical): We supply a superior quality backfill, which is very important for increasing the performance of CP Systems. Our ideal backfill has: Low resistivity, High porosity, Low density, and high purity. Size: 0 – 10 mm, Resistivity: 0.5 Ohm. M, Packing: 25 kg bags.

Carbonaceous Backfill (Metallurgical)

Carbonaceous Backfill (Metallurgical): We supply a superior quality backfill, which is very important for increasing the performance of CP Systems. Our ideal backfill has: Low resistivity, High porosity, Low density, and high purity. Size: 0 – 10 mm, Resistivity: 0.5 Ohm. M, Packing: 25 kg bags.

Test Point (Test Stations)

Test Point (Test Stations): used for cathodic protection monitoring and during road crossing applications as well. It can be constructed from galvanized carbon steel and Pipe coated with two component Epoxy Paint colors. Different types of materials such as polycarbonate are also available upon request.

Insulating Joints

Insulating joints: we supply Monolithic Insulating Joints, PE steel transitions, and Linear expansion joints. Monolithic Insulating Joints are manufactured in the range of diameters from DN 25 – DN 2500. PE-steel transitions are manufactured in the range of diameters from DN 20 – DN 1500. Please see our full offer.

Electronic Decoupling Devices (PCR)

Electronic Decoupling Devices (PCR): EDD designed as a polarization cell replacement (PCR). The EDD is a solid-state device which prevents the flow of Direct Current (DC) volts while simultaneously providing a grounding (coupling) path for steady state Alternating Current (AC).

Permanent Reference Electrode

Permanent Reference Electrode: used to measure Cathodic Protection (CP) Potentials on buried pipelines, storage tanks and other buried metallic structures to which CP has been applied. It has different types depending on structure such as Cu/Cuso4, Zn/Znso4 OR Ag/Agcl.

Portable Reference electrode

Portable Reference electrode: Designed for use in soft soils. To measure pipe to soil Protection and depend on type of Soil we can use Copper / Copper Sulphate OR Portable Ag/Agcl.

ICAF / MGPS

ICAF / MGPS: used to Protect offshore structures, cooling systems that use seawater against biofouling of internal piping and strainers in an economical way. MGPS / ICAF systems use copper anodes that are connected to a compact control unit. impressed current is sent to the anodes which release a small amount of copper ions into the water flowing through the ship’s sea water system or sea chests, creating an environment which prevents the settlement of micro-organisms. 

Impressed Current Anodes

  • Mixed Metal Oxide Titanium Tubular Anodes: MMO Titanium Tubular Anodes are manufactured using titanium, which meets ASTM B338 Grade 1 or Grade 2 standards, which has been coated with Mixed Metal Oxide coating. The coating consists of IrO2/Ta2O5 and is suitable for use in all cathodic protection applications. Because MMO anodes have an extremely low consumption rate, the titanium substrate remains constant throughout the design life of the anode. MMO/Ti Anodes can also be provided prepackaged in canisters.

  • Mixed Metal Oxide / Titanium Ribbon Anodes: MMO Ribbon Anodes Used In Fine Sand For Cathodic Protection Of Tank Bases. The anode is usually deployed in a Grid layout with Titanium Conductor Bars and Power Feed Connectors.

  • Mixed Metal Oxide / Titanium Ribbon Mesh Anodes: MMO Ribbon Mesh Anodes are used for the protection of steel reinforcing re-bar embedded in concrete. A range of Ribbon Mesh sizes are available according to the desired current output / lifetime required. Anodes are thoroughly tested and proven for long life applications.

  • Mixed Metal Oxide Flexible Linear Anodes: MMO Linear Anodes can be assembled using titanium Wire Anodes (ASTM B348), or Ribbon Anodes (ASTM B265) which have been coated with Mixed Metal Oxide Coating. The linear anode is packaged in a highly absorbent fabric sleeve. This sleeve is sewn using a double interlocking stitch, which prevents the seam from separating during installation, or when stored in high temperature conditions. The sleeve is filled using a high quality, calcined petroleum coke. The overall assembly is protected by an interwoven plastic braid to ensure the long-term integrity of the product structure.

  • Mixed Metal Oxide Wire Anode: MMO wire anode designed for Impressed Current Cathodic Protection systems of steel structures. The high purity Titanium metal substrate has proven chemical corrosion resistance, low system electrical resistance, and high mechanical integrity against breakage.

  • Platinized Titanium anodes: P.T Anodes are manufactured from a commercially pure titanium substrate plated with a very thin coating of platinum. The titanium serves simply as the anode body and the conductor, the active anode element being the platinum coating.

  • Silicon Iron Rod / Tubular Anodes: Si-Fe Anodes used to suit impressed current Cathodic Protection of pipelines, tanks, and marine structures. Resistance to corrosion from a wide range of corrosive environments has resulted in the extensive use of standard 14.5% silicon iron alloy with 4.5% added chrome.

Standard Sizes of Anodes

  • 1.5 × 60
  • 2 × 60
  • 3 × 60

Suitable For

  • Deep ground beds.
  • Shallow / Horizontal Groundbeds.
  • Seawater or Brackish water.

Cable

these cables are available upon request. (XLPE/PVC, HMWPE, PVDF/HMWPE, KYNAR).