At N.W.HENGYI METAL, we understand that the integrity of a cathodic protection (CP) system depends on every single component. Beyond our industry-leading MMO (Mixed Metal Oxide) Titanium Anodes, the unsung hero ensuring sustained performance is the critical connection – the cable. Today, we are proud to detail the engineering excellence behind our standard and robust cable system, the backbone that delivers protection to your assets.
The Core of Reliability: 1x10mm² Kynar (PVDF)/HMWPE Cable
Our CP systems universally employ a specially engineered cable: 1x10mm² with Kynar (PVDF) insulation and an HMWPE (High-Density Polyethylene) sheath. This specification is not arbitrary; it is the result of meticulous selection for maximum durability and signal fidelity.
Optimal Conductor: The 1x10mm² stranded copper core is precisely sized to offer low electrical resistance, ensuring efficient current transfer from the power source to the anode with minimal losses, which is crucial for system efficiency and voltage drop calculations.
Unmatched Material Synergy: The Kynar/HMWPE combination is what sets this cable apart.
Kynar (PVDF): As the primary insulation, it provides an exceptional barrier. It boasts supreme resistance to chemicals—including acids, alkalis, halogens, and solvents—found in industrial splash zones, soil, and marine atmospheres. Its inherent flame-retardant and superior UV resistance properties make it ideal for long-term exposure.
HMWPE Sheath: This outer jacket delivers outstanding mechanical toughness. It resists abrasion, crushing, impact, and moisture ingress, protecting the integrity of the insulation during installation and throughout decades of service.
Application Excellence: Built for Real-World Environments
This cable is engineered for the harshest conditions where CP is vital:
Onshore: Buried alongside pipelines, routed through chemical plants, or installed in concrete structures.
Offshore & Coastal: On topsides of marine platforms, within splash zones, and across coastal installations where salt spray is constant.
Industrial: In refineries, tank farms, and wastewater treatment facilities where chemical exposure is a given.
The Critical Junction: Our Proprietary Connection & Sealing Protocol
A cable is only as reliable as its connection. At N.W.HENGYI METAL, we treat the cable-to-anode termination as the most critical point in the system. Our multi-step, permanent, and monolithic sealing process for our MMO Tubular Anodes, MMO Canister Anodes, and MMO Ti Flexible Anodes eliminates the risk of failure:
1. Secure Electrical Connection: Inside the anode core, the cable is terminated with a high-integrity copper connector, ensuring a stable, low-resistance electrical joint.
2. Primary Epoxy Seal: The connection cavity is then potting with a specially formulated epoxy resin. This creates a rigid, void-free barrier that completely blocks moisture and gas ingress, provides excellent dielectric strength, and offers superior bond strength to both the cable and anode interior.
3. Secondary Mechanical Seal: A rubber end-cap is fitted over the anode tube end, compressing around the cable for an additional environmental seal and strain relief.
4. Tertiary Environmental Seal: Finally, a thick-walled, adhesive-lined heat-shrink tube is applied over the junction and a portion of the cable. This fusion-sealed sleeve provides a final, rugged layer of protection against water, chemicals, and mechanical damage.
This triple-sealed design ensures our anodes maintain their specified output and lifespan, even when fully immersed, buried, or exposed to cyclic wet/dry conditions.
N.W.HENGYI METAL's Commitment: A Complete System Solution
We don't just supply anodes; we deliver complete, engineered CP subsystems. By standardizing on this high-performance cable and enforcing a rigorous connection protocol across our product line—from rigid tubular and canister anodes to flexible ribbon anodes—we guarantee our customers a foundation of reliability.
Choose N.W.HENGYI METAL. Partner with us for cathodic protection solutions where every detail, down to the cable and its connection, is engineered for zero compromise.
N.W.HENGYI METAL – Guarding Infrastructure, Preserving Value.
