[{"data":1,"prerenderedAt":186},["ShallowReactive",2],{"blog-en-\u002Fblog\u002Fmechanical-seals-carbon-graphite-faces":3,"blog-related-\u002Fblog\u002Fmechanical-seals-carbon-graphite-faces":167},{"id":4,"title":5,"alternateArticle":6,"authors":7,"body":13,"category":153,"contentOrigin":154,"date":155,"description":156,"extension":157,"image":158,"lastUpdated":159,"meta":160,"navigation":161,"ogImage":162,"originalArticle":163,"path":6,"seo":164,"stem":165,"tags":162,"__hash__":166},"blog_en\u002Fblog\u002Fmechanical-seals-carbon-graphite-faces.md","Types of mechanical seals, carbon and graphite seal faces","\u002Fblog\u002Fmechanical-seals-carbon-graphite-faces",[8],{"name":9,"position":10,"avatarUrl":11,"link":12},"Arturo Romero","CIO","https:\u002F\u002Fgithub.com\u002Farturork.png","https:\u002F\u002Flinkedin.com\u002Fin\u002Farturork",{"type":14,"value":15,"toc":138},"minimark",[16,20,25,28,32,35,38,42,45,48,52,55,59,62,67,89,93,96,100,103,120,124],[17,18,19],"p",{},"We can classify mechanical seals in four categories based on their operation,\ncharacteristics, parts that compose them and then the types of mechanical seals\nthat exist.",[21,22,24],"h2",{"id":23},"conventional-seals","Conventional seals",[17,26,27],{},"Conventional types of mechanical seals are used in devices or applications that\nare not designed to have mechanical seals. These types of seals are very\nstandardized, as they are intended to be replacements or part of modifications\nto equipment, such as pumps.",[21,29,31],{"id":30},"balanced-and-unbalanced-seals","Balanced and unbalanced seals",[17,33,34],{},"Hydraulically balanced seals have the diameters of their faces reduced according\nto the diameter of the shaft where they are installed, thus reducing the\npressure load of the pumped fluid on each face. These mechanical seals can be\nused when dealing with very high pressures or certain types of fluids.",[17,36,37],{},"On the other hand, unbalanced seals receive the full force of the hydraulic\npressure on both faces, in addition to the spring pressure.",[21,39,41],{"id":40},"dynamic-or-thrust-and-static-or-non-thrust-seals","Dynamic or thrust and static or non-thrust seals",[17,43,44],{},"Dynamic seals feature an O-ring that moves axially on the shaft by one or two\nsprings that apply force to the seal faces, while compensating for wear and\nabsorbing shaft misalignment.",[17,46,47],{},"Non-thrust seals, on the other hand, do not have O-rings, but are stationary but\nhave a bellows that moves to perform their sealing functions.",[21,49,51],{"id":50},"cartridge-seals","Cartridge seals",[17,53,54],{},"These are self-contained and are already assembled by default. Their\ninstallation does not require a lot of time and process investment, making them\na great option for shafts without ideal alignment or with the presence of\nvibrations.",[21,56,58],{"id":57},"split-seals","Split seals",[17,60,61],{},"Split mechanical seals are mainly used on large shafts, consisting of two parts\nthat are joined together to give a better grip on the shaft. This type of\nmechanical seals has many applications in addition to solving major problems,\nsuch as seal leakage, without the need to disassemble the equipment.",[63,64,66],"h3",{"id":65},"types-of-mechanical-seals-by-materials","Types of mechanical seals by materials",[68,69,70,74,77,80,83,86],"ul",{},[71,72,73],"li",{},"Graphite",[71,75,76],{},"Carbon - Graphite, electrographite, electrographite",[71,78,79],{},"Silicon carbide, tungsten carbide",[71,81,82],{},"Alumina - Ceramic",[71,84,85],{},"Graphite impregnated in resin and antimony",[71,87,88],{},"PTFE",[21,90,92],{"id":91},"limitations-to-consider","Limitations to consider",[17,94,95],{},"Performance depends on graphite grade, grain orientation, temperature, load, pressure, speed, and operating environment. Material selection should be confirmed for your actual process conditions.",[21,97,99],{"id":98},"information-needed-for-a-quote","Information needed for a quote",[17,101,102],{},"To guide selection or prepare a quote, ESGRAF typically needs:",[68,104,105,108,111,114,117],{},[71,106,107],{},"Application and operating conditions (temperature, atmosphere, load).",[71,109,110],{},"Dimensions, technical drawing, or CAD file when applicable.",[71,112,113],{},"Required quantity.",[71,115,116],{},"Requested grade or material currently in use.",[71,118,119],{},"Observed issue with the previous part or lubricant, if any.",[21,121,123],{"id":122},"request-a-quote","Request a quote",[17,125,126,127,132,133,137],{},"Share these details with our team at ",[128,129,131],"a",{"href":130},"\u002F","ESGRAF"," or ",[128,134,136],{"href":135},"\u002Fcontact","request information",". A specialist will review your application before recommending a grade or geometry.",{"title":139,"searchDepth":140,"depth":140,"links":141},"",2,[142,143,144,145,146,150,151,152],{"id":23,"depth":140,"text":24},{"id":30,"depth":140,"text":31},{"id":40,"depth":140,"text":41},{"id":50,"depth":140,"text":51},{"id":57,"depth":140,"text":58,"children":147},[148],{"id":65,"depth":149,"text":66},3,{"id":91,"depth":140,"text":92},{"id":98,"depth":140,"text":99},{"id":122,"depth":140,"text":123},"Use cases","translation","2019-12-29","Mechanical seals are very important elements in industry because they keep machines running and prevent fluid leakage, which can put processes, installations and even personnel at risk. Choosing the right seal is of vital importance. In the industry there are different types of mechanical seals according to their characteristics, construction, applications, among other elements.","md","\u002Fassets\u002Fblog\u002Fmechanical-seals-carbon-graphite-faces.webp","2026-07-22",{},true,null,"\u002Fblog\u002Ftipos-de-sellos-mecanicos-caras-de-grafito",{"title":5,"description":156},"blog\u002Fmechanical-seals-carbon-graphite-faces","uGdlyiTlfnMI6Ci7G9zBxfpqgKoprWWHcpQmBrEqM_8",[168,174,180],{"path":169,"title":170,"description":171,"image":172,"date":173,"category":153},"\u002Fblog\u002Fspheroidal-graphite-cast-iron","Spheroidal graphite cast iron - in which industries is it needed?","Cast irons are a group of ferrous alloys that have a large number of properties and have above 2% carbon. In these cases the carbon does not dissolve completely in the iron and solidifies in the form of graphite or iron carbide. One of the types is spheroidal graphite cast iron or nodular cast iron.","\u002Fassets\u002Fblog\u002Fspheroidal-graphite-cast-iron.webp","2020-12-22",{"path":175,"title":176,"description":177,"image":178,"date":179,"category":153},"\u002Fblog\u002Fbenefits-graphite-dielectric-properties","Anisotropic conductivity of graphite: conductor and insulator by direction","Graphite is not a uniform dielectric: it conducts well in the basal plane and behaves like an insulator perpendicular to the layers. That anisotropy explains its role in EDM, brushes, and thermal components.","\u002Fassets\u002Fblog\u002Fbenefits-graphite-dielectric-properties.webp","2020-12-15",{"path":181,"title":182,"description":183,"image":184,"date":185,"category":153},"\u002Fblog\u002Fcrystalline-graphite-flake","Crystalline flake graphite: utilization and impact in the industry","Graphite is a mineral that can be obtained naturally but also artificially. artificially. It is one of the most stable allotropic forms of carbon and has a wide range of industrial uses. It is one of the most stable allotropic forms of carbon and has a wide range of applications due to its characteristics.","\u002Fassets\u002Fblog\u002Fcrystalline-graphite-flake.webp","2020-12-10",1785448977444]