RV Water Heater Anode Rod AZ31B for commercial / solar / gas / water heaters and heater treaters
|Place of Origin:||China|
|Brand Name:||OEM HIGH BROAD|
|Certification:||ASTM G-97, ISO, DNV , ROHS|
|Model Number:||OEM Custom-made high quality|
Payment & Shipping Terms:
|Minimum Order Quantity:||1 piece|
|Packaging Details:||On pallet with steel bundles|
|Delivery Time:||1 FCL:14 Days|
|Payment Terms:||L/C, D/A, D/P, T/T, Western Union, MoneyGram,PayPal|
|Supply Ability:||300 Metric Ton/Metric Tons per Month|
|Name:||SOLAR Magnesium Anodes , CARAVAN ANODES,DAIRY ANODES||Material:||H-1 AZ63C AZ31B , Cast , Extruded|
|Application:||Anode Rod- 34 Magnesium Anode Rod For Hot Water Heaters, NPT Thread Prevent Corrosion Within Your Water Heater, Sacrificial Anode Rod For Suburban Hot Water Heaters||Ability:||NPT BSP G STEEL Plug|
|Certificate:||ROHS / ISO|
sacrificial anode protection,
magnesium sacrificial anode
RV Water Heater Anode Rod AZ31B
Preserve the life of the water heater tank in your RV, Camper or Motorhome by changing out that worn out Anode rod with one of our high quality magnesium Anode Rods
Our anodes are mainly shipped to North American, Middle east and Asia countries for over 3000mts per year. which are used in pipeline, vessel ,bridge, onshore and offshore project.
Our goods are regularly tested by US lab named Anodes Evaluation and proved to be in good quality.Each piece of anode has its own detailed tracking record includes: raw material source, production date, lab test date, furnace number,package number etc.which can ensure our anode quality continuous.
When the potential polarity is reversed, it becomes a cathode, which will accelerate the corrosion of steel. Secondly, the zinc alloy anode will undergo intergranular corrosion in high-temperature water, causing the crystal grains to fall off directly without generating a protective current, resulting in a decrease in current efficiency. Aluminum-based alloy sacrificial anodes are generally used in seawater media, and are rarely used in fresh water, especially in water heaters. The United States has developed 8020 and K804 aluminum alloy sacrificial anodes used in fresh water, but has not been widely promoted and applied. At the same time, it has been found in medicine that the accumulation of aluminum in the brain is related to Alzheimer's disease. Therefore, the aluminum sacrifice of this alloy Anodes are rarely used in water heaters. 1.2 The sacrificial anode materials commonly used abroad for volumetric water heaters are AZ63 and AZ31 series of magnesium alloys with ultra-low impurity content in the ASTM B843-93 standard. Their typical chemical composition is AZ63: A1 5.3%～6.7%, Zn 2.5%～ 3.5%, Mn 0.15%min point 0.6%, Fe 0.003%max, Cu 0.02%max, Ni 0.001%max, Si 0.1%max, AZ31: A12.5%～3.5%, Zn 0.7%～1.3%, Mn 0.2 %Min, Fe 0.002%max, Cu 0.015max, Ni 0.001%max, Si 0.1%max. The above alloy has an open circuit potential of -1.55V to -1.65V and a current efficiency of 53.3 to 60% in hot water of 20 to 80.
Introduction of anode rods for protection of water heater inner tanks. Volumetric electric water heaters are the most common and commonly used water heaters. The steel materials of the inner tank are divided into steel pottery coating, steel galvanized, stainless steel and so on. Many domestic water heater manufacturers use basically the above three types of inner tanks. The steel inner tank is exposed to a hot water environment of about 70 for a long time, and the inner wall will be severely corroded. The corrosion products have a certain impact on the water quality, resulting in the inner wall. The gall bladder wears the notification to waste. Professional foreign water heater manufacturers usually use sacrificial anode and cathodic protection to solve the problem of pinhole corrosion and penetration of the inner tank. This method is quite mature and commercialized. However, some domestic water heater manufacturers know little about the production and application of this anode rod alloy material. Therefore, the technical research of using cathodic protection to effectively control the corrosion of the inner tank wall urgently needs to be popularized. 1. Screening and evaluation of sacrificial anode materials Cathodic protection technology is used for the corrosion protection of the inner tank of electric water heaters, and the sacrificial anode method is usually adopted. The sacrificial anode method is to couple the metal to be protected with an active metal with a more negative potential. Because the two electrodes have different potentials, they form a galvanic cell, thereby generating a cathodic current that plays a role of cathodic protection, which has a higher potential than the protected metal. The negative active metal is the sacrificial anode (usually called magnesium alloy sacrificial anode rod in water heater applications). 1.1 The sacrificial anode materials widely used at present mainly include: zinc, zinc alloy, aluminum alloy, magnesium and magnesium alloy, etc. Among these anodes, magnesium and magnesium alloy anodes have the lowest potential, and have a large drive potential to iron. The open circuit potential is -1.6V to -1.7V, which is especially suitable for use in fresh water with high resistivity. In addition, magnesium is also necessary for the human body and has no toxic side effects to the human body. The disadvantage is that the self-corrosion effect is large, the efficiency is low (only about 50%, due to the hydrogen evolution on the electrode surface, the negative difference effect and the cause of the metal shedding), and the consumption is fast. Despite the shortcomings in the above-mentioned aspects, compared with other sacrificial anode alloys, magnesium alloy is still the preferred material for water heater anodes. The current efficiency of the zinc anode can reach 95%. In the water heater, zinc is usually used as a sacrificial anode in the form of zinc or electro-galvanized. However, the passivation performance of the zinc anode increases with the temperature, and the zinc electrode potential shifts positively, zinc-iron Electricity
Contact me for more details :
International Marketing & Sales Department Manager
China Hunan High Broad New Material Co.Ltd.
70 Chezhan North Road,Changsha, China 410100
Email: firstname.lastname@example.org , email@example.com