Quality Substrate Material
Our zinc ribbon anode is made from special high grade (SHG) zinc ingots with 99.995% purity. It is produced according to ASTM-B418 type I and type II alloy standards. The high-purity composition ensures the anode material is more resistant to passive films. Type I is generally used in seawater or brackish water, while Type II is used in underground and fresh water applications.
| Element | ASTM – B418 Type I | ASTM – B418 Type II |
| Aluminum (Al) | 0.1~0.5% | 0.005% max. |
| Lead (Pb) | 0.006% max. | 0.003% max. |
| Iron (Fe) | 0.005% max. | 0.0014% max. |
| Copper (Cu) | 0.005% max. | 0.002% max. |
| Cadmium (Cd) | 0.025% ~ 0.07% | 0.003% max. |
| Total Impurities | 0.1% max. | 0.1% max. |
| Zinc (Zn) | Remainder | Remainder |
High Current Output
Due to continuous ribbon formation, zinc ribbon anode can provide even distribution of current density to the cathode. Its self-regulating current output will not cause nor magnify stray currents present. With more than 90% current efficiency, its performance meets the highest industry standards.
| Technical Measurement | ASTM – B418 Type I | ASTM – B418 Type II |
| Open Circuit Potential (-V) | 1.05 min. | 1.10 min. |
| Close Circuit Potential (-V) | 1.00 min. | 1.05 min. |
| Current Capacity | 354A.h/lbs (780A.h/kg) | 335A.h/lbs (740A.h/kg) |
| Current Efficiency | 95% | 90% |
| Consumption Rate | 24.8 lbs/A·y (11.2 kg/A.y) | 26.2 lbs/A·y (11.9 kg/A.y) |
Remarks: Open/close circuit potential is with respect to a Saturated Calomel Reference Electrode.
Low Temperature Tolerance
This zinc ribbon anode is designed to perform optimally in challenging cold weather(-22ºF/ -30ºC) environments, such as thawed zones in permafrost.
Broad Application Scope
Zinc ribbon anodes are used in a variety of applications, including:
- Cathodic protection of underground long-distance coated pipelines with low current requirements, generally in soils of 2000 ohm-cm or less with prepared gypsum-clay backfill;
- Cathodic protection of secondary exterior bottom on above-ground storage tanks;
- Cathodic protection of oil storage tank interior bottom areas where salt water settles out;
- A.C. mitigation on pipelines;
- A.C. mitigation grounding mats.
- Grounding steel tower footings of overhead power systems.
Strict Quality Control
Jennings Anodes manufactures zinc ribbon using an advanced automatic extruder allowing for a production capacity of 2,000,000 meters annually. By conforming to ISO 9001:2015 standards, our zinc ribbon anodes are manufactured, inspected, and tested in accordance with our stringent quality control procedures to ensure peak performance.
Customized Configurations
Our zinc ribbon anode comes in four standard sizes with excellent tensile strength and hardness. It can be easily cut to any length upon request.
| Item No. | Cross Section | Core Diameter | Length | Unit Weight |
| JA-ZR-Super | 1″ × 1-¼″ (25.4 × 31.75 mm) | 0.185″ (4.70mm) | 100ft. (30.5m) | 2.4 lbs/ft. (3.57 kg/m) |
| JA-ZR-Plus | 5/8″ × 7/8″ (15.88 × 22.22 mm) | 0.135″ (3.43mm) | 200ft. (61m) | 1.2 lbs/ft. (1.785 kg/m) |
| JA-ZR-Standard | 1/2″ × 9/16″ (12.7 × 14.28 mm) | 0.13″ (3.30mm) | 500ft. (152m) | 0.6 lbs/ft. (0.893 kg/m) |
| JA-ZR-Small | 11/32″ × 13/32″ (8.73 × 10.32 mm) | 0.115″ (2.92mm) | 1000ft. (305m) | 0.25 lbs/ft. (0.372 kg/m) |
