{"id":1998,"count":5,"description":"\r\n\r\n\r\n\r\nOBTER PRE\u00c7O DO ASSENTO DE V\u00c1LVULA PCTFE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n

O que \u00e9 PCTFE?<\/h2>\r\n\r\n\r\n\r\n\r\nPCTFE (policlorotrifluoroetileno) \u00e9 um pol\u00edmero \u00e0 base de fluorocarbono. Ele oferece uma combina\u00e7\u00e3o \u00fanica de propriedades f\u00edsicas e mec\u00e2nicas, n\u00e3o inflamabilidade e baixa capacidade de permea\u00e7\u00e3o \u00e0 umidade e vapor em compara\u00e7\u00e3o com outros pl\u00e1sticos. A resist\u00eancia ao calor e a capacidade de resist\u00eancia qu\u00edmica s\u00e3o inferiores \u00e0s do PFA e do FEP, no entanto, as caracter\u00edsticas mec\u00e2nicas (especialmente a dureza) s\u00e3o superiores. \u00c9 adequado para utiliza\u00e7\u00e3o na faixa de temperatura de -200\u00b0C~150\u00b0C, especialmente para aplica\u00e7\u00f5es criog\u00eanicas como oxig\u00eanio, hidrog\u00eanio, nitrog\u00eanio e muito mais. PCTFE tem um desempenho de resist\u00eancia muito forte a baixas temperaturas.\r\n\r\n\r\n\r\n\r\n

Lista de Im\u00f3veis do PCTFE<\/h2>\r\n\r\n\r\n\r\n
\r\n\r\n\r\n\r\n\r\n\r\n
Item<\/strong><\/td>\r\nCor<\/strong><\/td>\r\nDensidade<\/strong><\/td>\r\nDureza<\/strong><\/td>\r\nFor\u00e7a compressiva<\/strong><\/td>\r\nTemperatura de longo prazo.<\/strong><\/td>\r\n<\/tr>\r\n
Unidades<\/td>\r\n<\/td>\r\ng\/cm3<\/td>\r\nCosta D<\/td>\r\nMPa<\/td>\r\n\u2103<\/td>\r\n<\/tr>\r\n
Valor<\/td>\r\nTransl\u00facido<\/td>\r\n2.13<\/td>\r\n75-85<\/td>\r\n80<\/td>\r\n-80~115<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n

V\u00e1lvula de esfera<\/mark><\/a><\/strong> Assentos<\/h2>\r\n\r\n\r\n\r\n\r\nSedes e insertos, que s\u00e3o componentes importantes na ind\u00fastria de v\u00e1lvulas, s\u00e3o componentes cr\u00edticos. O PTFE \u00e9 muitas vezes escolhido como mat\u00e9ria-prima. O PTFE proporciona uma sede de baixo atrito, com excelente compatibilidade com meios. Classes preenchidas proporcionam resist\u00eancia ao desgaste e podem suportar cargas de assentamento de v\u00e1lvulas de classe mais alta.\r\n\r\n\r\n\r\n\r\n

V\u00e1lvula de borboleta<\/a><\/mark><\/strong> Assentos<\/h2>\r\n\r\n\r\n\r\n\r\nPTFE \u00e9 um dos materiais da sede da v\u00e1lvula borboleta. As sedes das v\u00e1lvulas borboleta em PTFE est\u00e3o dispon\u00edveis em PTFE puro ou refor\u00e7ado para atender aos requisitos espec\u00edficos de diferentes ambientes de trabalho.\r\n\r\n\r\n\r\n\r\n\r\nPTFE Seats' Excellent Chemical Resistance, High-Temperature Resistance, Self-lubrication, and Low Friction Properties of PTFE Make It a General Material for Valve Seats.\r\n\r\n\r\n\r\n\r\n

SELE\u00c7\u00c3O DE MATERIAL DA SEDE DE V\u00c1LVULA<\/h2>\r\n\r\n\r\n\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Nome do material<\/th>\r\nPropriedades Principais<\/th>\r\nNotas<\/th>\r\nGama de temperaturas<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
PTFE VIRGEM<\/td>\r\nCoeficiente de atrito muito baixo e excelente resist\u00eancia qu\u00edmica.<\/td>\r\nAprovado pela FDA<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
15% PTFE preenchido com vidro<\/td>\r\nMenor resist\u00eancia \u00e0 compress\u00e3o e menor deforma\u00e7\u00e3o sob carga do que o PTFE virgem.<\/td>\r\nMaterial abrasivo<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
25% PTFE preenchido com vidro<\/td>\r\nSemelhante ao vidro 15%, melhor resist\u00eancia ao desgaste, maior resist\u00eancia \u00e0 compress\u00e3o e menor deforma\u00e7\u00e3o sob carga.<\/td>\r\nMaterial abrasivo<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
PTFE preenchido com a\u00e7o inoxid\u00e1vel<\/td>\r\nExtremamente resistente. Excelente resist\u00eancia e estabilidade sob cargas extremas e temperaturas elevadas.<\/td>\r\nPode ser usado em aplica\u00e7\u00f5es de vapor e fluido t\u00e9rmico<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
TFM<\/td>\r\nEstrutura polim\u00e9rica muito mais densa que o PTFE virgem. Apresenta melhor recupera\u00e7\u00e3o do estresse.<\/td>\r\nPol\u00edmero TFE modificado<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
TFM preenchido com grafite de carbono<\/td>\r\nMenor taxa de expans\u00e3o-contra\u00e7\u00e3o t\u00e9rmica do que o TFM convencional.<\/td>\r\nIdeal para uso em aplica\u00e7\u00f5es de vapor e fluido t\u00e9rmico<\/td>\r\n-40\u00b0C a 260\u00b0C e at\u00e9 320\u00b0C em aplica\u00e7\u00f5es de fluido t\u00e9rmico<\/td>\r\n<\/tr>\r\n
UHMWPE<\/td>\r\nAltamente resistente a produtos qu\u00edmicos corrosivos, com exce\u00e7\u00e3o de \u00e1cidos oxidantes e solventes org\u00e2nicos.<\/td>\r\nTamb\u00e9m conhecido como Polietileno de Alto M\u00f3dulo (HMPE) ou Polietileno de Alto Desempenho (HPPE)<\/td>\r\n-40\u00b0C a +80\u00b0C<\/td>\r\n<\/tr>\r\n
PCTFE<\/td>\r\nExcelente para uso criog\u00eanico e de oxig\u00eanio.<\/td>\r\nUm homopol\u00edmero de clorotrifluoroetileno<\/td>\r\n-270\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
Virgem PEEK 450G<\/td>\r\nExcelente resist\u00eancia qu\u00edmica e propriedades mec\u00e2nicas em temperaturas elevadas.<\/td>\r\nUm termopl\u00e1stico de pol\u00edmero org\u00e2nico<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
PEEK preenchido com carbono<\/td>\r\nMuitas propriedades semelhantes ao Virgin PEEK. Particularmente adequado para temperaturas elevadas e situa\u00e7\u00f5es de alta carga.<\/td>\r\nBaixo coeficiente de atrito e adequado para muitas aplica\u00e7\u00f5es extremamente corrosivas<\/td>\r\n-40\u00b0C a 260\u00b0C<\/td>\r\n<\/tr>\r\n
PEEKHT<\/td>\r\nMant\u00e9m todos os principais recursos e benef\u00edcios do PEEK 450G, mas mant\u00e9m as propriedades f\u00edsicas em temperaturas mais altas.<\/td>\r\nPode ser fornecido em material composto virgem, n\u00e3o preenchido ou preenchido<\/td>\r\nat\u00e9 260\u00baC<\/td>\r\n<\/tr>\r\n
Acetal e Delrin<\/td>\r\nApresenta boa resist\u00eancia ao desgaste e \u00e0 deforma\u00e7\u00e3o sob carga.<\/td>\r\nExcelente para aplica\u00e7\u00f5es de sede de v\u00e1lvula<\/td>\r\nat\u00e9 80\u00baC<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n","link":"https:\/\/zecovalve.com\/pt\/tag\/pctfe-valve-seat-manufacturer","name":"Fabricante de sede de v\u00e1lvula PCTFE","slug":"pctfe-valve-seat-manufacturer","taxonomy":"post_tag","meta":[],"yoast_head":"\nPCTFE Valve Seat Manufacturer - Ball Valve Seat & Butterfly Valve Seat<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/pt\/tag\/pctfe-valve-seat-manufacturer\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PCTFE Valve Seat Manufacturer - Ball Valve Seat & Butterfly Valve Seat\" \/>\n<meta property=\"og:description\" content=\"GET PCTFE VALVE SEAT PRICE What is PCTFE? PCTFE(Polychlorotrifluoroethylene) is a fluorocarbon-based polymer. It offers a unique combination of physical and mechanical properties, nonflammability, and low permeation capability to moisture and steam atmosphere compared to other plastics. The heat resistance and chemical resistance capability are less than PFA and FEP, however, mechanical characteristics(especially hardness) are superior. It is suitable for utilizing in the temperature range of -200\u2103\uff5e150\u2103, especially for cryogenic applications such as oxygen, hydrogen, nitrogen, and more. PCTFE has a very strong resistance performance to low temperatures. Property List of PCTFE Item Color Density Hardness Compressive strength Long-term Temp. Units g\/cm3 Shore D Mpa \u2103 Value Translucent 2.13 75-85 80 -80~115 Ball Valve Seats Seats and inserts, which are important components in the valve industry, are critical components, PTFE is very often chosen as the raw material. PTFE provides a low-friction seat, with excellent media compatibility. Filled grades provide wear resistance and can support seating loads of the higher class of valves. Butterfly Valve Seats PTFE is one of the Butterfly Valve Seat Materials. PTFE Butterfly Valve Seats Are Available in Pure or Reinforced PTFE to Meet Specific Requirements for Different Working Environments. PTFE Seats’ Excellent Chemical Resistance, High-Temperature Resistance, Self-lubrication, and Low Friction Properties of PTFE Make It a General Material for Valve Seats. VALVE SEAT MATERIAL SELECTION Material Name Main Properties Notes Temperature Range VIRGIN PTFE Very low coefficient of friction and excellent chemical resistance. FDA approved -40\u00b0C to 260\u00b0C 15% Glass Filled PTFE Decreased compressive strength and lower deformation under load than virgin PTFE. Abrasive material -40\u00b0C to 260\u00b0C 25% Glass Filled PTFE Similar to 15% Glass better wear resistance, higher compressive strength, and lower deformation under load. Abrasive material -40\u00b0C to 260\u00b0C Stainless Steel Filled PTFE Extremely hard-wearing. Excellent strength and stability under extreme loads and elevated temperatures. Can be used in steam and thermal fluid applications -40\u00b0C to 260\u00b0C TFM Much denser polymer structure than Virgin PTFE. Displays better stress recovery. Modified TFE Polymer -40\u00b0C to 260\u00b0C Carbon Graphite filled TFM Lower thermal expansion-contraction rate than conventional TFM. Ideal for use in steam and thermal fluid applications -40\u00b0C to 260\u00b0C and even 320\u00b0C on Thermal Fluid applications UHMWPE Highly resistant to corrosive chemicals, with the exception of oxidizing acids and organic solvents. Also known as High Modulus Polyethylene (HMPE) or High-Performance Polyethylene (HPPE) -40\u00b0C to +80\u00b0C PCTFE Excellent for cryogenic and Oxygen use. A homo-polymer of Chlorotrifluoroethylene -270\u00b0C to 260\u00b0C Virgin PEEK 450G Excellent chemical resistance and mechanical properties at elevated temperatures. An organic polymer thermoplastic -40\u00b0C to 260\u00b0C Carbon Filled PEEK Many similar properties to Virgin PEEK. Particularly suitable for elevated temperatures and high-load situations. Low coefficient of friction and suitable for many extremely corrosive applications -40\u00b0C to 260\u00b0C PEEK HT Retains all key features and benefits of PEEK 450G but retains physical properties to a higher temperature. Can be supplied in both virgins unfilled or as-filled compounded material up to 260\u00b0C Acetal and Delrin Displays good resistance to wear and deformation under load. 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