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Ceramic Seal Faces
Mechanical Seal is one of the media sealing forms commonly used in modern industry. It refers to the use of mechanical methods to bring the sealing surfaces into close contact and relative movement, and to use the pressure of the medium to prevent medium leakage. There are many types of seal face materials for mechanical seals, and the common ones are as follows:
- Graphite: A very common material for mechanical seals. It has the advantages of high temperature resistance, corrosion resistance and good thermal conductivity, and can be used in the range of -240℃-500℃. However, graphite seals are not suitable for sealing corrosive media.
- PTFE: A plastic with excellent corrosion resistance and low temperature resistance, it is also one of the commonly used materials in mechanical seals. It can be used in the temperature range of -70℃-260℃, and is suitable for use in acid, alkali and other media.
- Synthetic rubber: one of the commonly used sealing materials in mechanical seals. It is oil-resistant and corrosion-resistant, can be used in the range of -70℃-200℃, and is suitable for low-pressure and low-speed sealing.
- Metal: such as nickel alloy, carbide, stainless steel, cast iron, etc. Metal materials have good mechanical strength and corrosion resistance, and are suitable for sealing low-speed, low-pressure, low-temperature, and corrosive media.
- Ceramics: Ceramic Seals are mainly made of engineering ceramics such as alumina, zirconia, Silicon Nitride, silicon carbide, etc. Among them, Alumina Ceramic is the most widely used ceramic sealing material at present. It has excellent wear and corrosion resistance, high hardness, high strength, high temperature resistance and other characteristics, suitable for sealing under severe working conditions such as high speed, high temperature, high pressure and strong corrosion.
Mechanical seals made of different materials have different characteristics and application ranges. Choosing the appropriate mechanical seal face material can improve the effect and life of the mechanical seal and reduce maintenance costs.
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Brand:Jinghui ceramicsMin. Order:Piece/PiecesModel No:JH.CDR.001Transportation:Ocean,Land,Air,ExpressPackaging:Export cartonSupply Ability:1,000,000 sets/monthPlace of Origin:ChinaProductivity:500,000 sets/monthWearable Polished 95% 99% Alumina Ceramic Seal Ring Seal rings place a decisive impact on reliability and service lifespan in the sealing system of pumps, valves, regulators, medical analysis equipment, and automotive engineering. Therefore,... -
Unit Price:1~10USDBrand:Jinghui CeramicMin. Order:Piece/PiecesModel No:JH.CDF.002Transportation:Ocean,Land,Air,ExpressPackaging:Export cartonSupply Ability:1,000,000 Pieces/monthPlace of Origin:ChinaProductivity:1,000,000 Pieces/monthLarge Size Alumina Ceramic Seal Component Our ceramic seals generally use 95%/99% alumina ceramics. For those with higher sealing performance requirements, we will use zirconia ceramics. Alumina ceramics have low density, high melting point,... -
Unit Price:USD 2 - 5 / Piece/PiecesBrand:Jinghui CeramicModel No:Standard or customizedTransportation:Ocean,Land,Air,ExpressPackaging:First individually packaged, then carton packagedSupply Ability:500,000 Pieces/monthPlace of Origin:ChinaProductivity:500,000 Pieces/monthWorking Principle of Double Mechanical Seals The sealing principle of double mechanical seals is to use the sealing chamber between two mechanical seals to maintain the pressure difference between the inner and outer rings. This can ensure that... -
Unit Price:USD 1.2 - 2.5 / Piece/PiecesBrand:Jinghui CeramicModel No:Standard or custom-madeTransportation:Ocean,Land,Air,ExpressPackaging:Individual PackageSupply Ability:500,000 pieces/monthPlace of Origin:ChinaProductivity:500,000 pieces/monthSiC Ceramic Seal Rings Silicon Carbide Ceramic Seals Brief Introduction of Silicon Carbide Ceramic Materials Silicon carbide ceramics is a type of modern engineering ceramics. Its hardness is second only to diamond. It has a small thermal expansion... -
Unit Price:USD 2 - 5 / Bag/BagsBrand:Jinghui ceramicsMin. Order:Bag/BagsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthSSiC Ceramic Valve Seat for Mechanical Seal The silicon carbide has numerous advantages of excellent abrasive resistance, anti-corrosion, high coefficient of heat conductivity, self-lubrication and low thermal expansion. The frictional factor of the... -
Unit Price:USD 2 - 5 / Bag/BagsBrand:Jinghui ceramicsMin. Order:Bag/BagsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthAl2O3 Alumina Ceramic Seal Washer We are capable of working with a variety of customized ceramic seals, like ceramic seal faces, ceramic seal discs, ceramic ball valve and so on. We offer a selection of technical ceramic material for these ceramic... -
Unit Price:USD 2 - 5 / Bag/BagsBrand:Jinghui ceramicsMin. Order:Bag/BagsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthMechanical Seal Components Silicon Carbide Ring Seal Faces We have been producing over than a few hundreds of pump ceramic seal faces with different size/design. These ceramic seals are made from optimized raw material, like alumina, zirconia,... -
Unit Price:USD 2 - 5 / Bag/BagsBrand:Jinghui ceramicsMin. Order:Bag/BagsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthAluminum Oxide Ceramic Mechanical Seal Faces for Automotive As aluminum oxide ( alumina) offers high hardness, good abrasion resistance, good thermal shock, and anti-chemistry. These characteristics make alumina suitable for ceramic seal faces.... -
Brand:Jinghui ceramicsMin. Order:Piece/PiecesModel No:Standard or custom-madeTransportation:Ocean,Land,Air,ExpressPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthMain characteristics of SiC seal ceramic rings 1. Exceptional hardness, the physical hardness is up to 2500MPa 2. Superb chemical stability against hot strong acid and alkali and free of rust forever 3. Excellent wear-resistance and abrasion... -
Brand:Jinghui ceramicsMin. Order:Set/SetsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Export cartonSupply Ability:10,000 sets/monthPlace of Origin:ChinaProductivity:50,000 sets/monthZirconia ceramic ball valve Ceramic ball valves and ceramic valves seat are mainly made of zirconia via the high precision process to be 0.001mm for some key dimensions. It can be built per customers' requirement for Ceramic Seals. In view of their... -
Unit Price:USD 2 - 5 / Bag/BagsBrand:Jinghui ceramicsMin. Order:Bag/BagsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthDiamond polishing Mechanical Seal Face and Ceramic Seal Our company offers a wide variety of desired ceramic face seals. We support from small size to large size in utility seals, prototyping to high need in water pumps production, all material of... -
Unit Price:USD 2 - 5 / Bag/BagsBrand:Jinghui ceramicsMin. Order:Bag/BagsModel No:Standard or custom-madeTransportation:Ocean,Land,AirPackaging:Individual packing first, then exported carton packedSupply Ability:500,000 sets/monthPlace of Origin:HunanProductivity:200,000 sets/monthAluminum Oxide Ceramic Mechanical Seal Faces for Automotive Our factory offers various mechanical ceramic seal faces, which are designed to prevent leakage between the rotating shaft and stator under the condition of high-temperature, high-pressure...
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Material Selection
Alumina
- 95% Al2O3: Mainly used for agricultural pumps and automobile cooling pumps.
- 99% alumina: Mainly used for external mechanical seals of acid-resistant pumps.
- 99% alumina: Mainly used for external mechanical seals of acid-resistant pumps.
Zirconia
Compared with Al2O3, ZrO2 has better mechanical properties such as wear resistance and fracture toughness, so it has better sealing performance.
Silicon Carbide
For high-speed, high-pressure, high-temperature and other heavy-load conditions, choose SISIC or SSIC with good thermal conductivity. When it may suffer from corrosion, choose HPSIC with better chemical stability.
Others
E.g., the thermal shock resistance of Si3N4 is the best among engineering ceramic materials, and its performance can be maintained stable even in environments with rapid temperature changes (0-1000°C).