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RO membrana elementlari suvni tozalash uchun armatura
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Sanoat va yuqori tozalikdagi ilovalar uchun yuqori sifatli PVDF quvur armaturalari
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Kriyojenik valf uchun ishlatiladigan bahor energiyali muhrlar
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LNG uchun ishlatiladigan balli vana o'rindiqlari
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Plastik ishlov berilgan qismlar PTFE, PEEK, PCTFE, TFM
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Uglerod bilan to'ldirilgan PTFE rod va shisha tolali to'ldirilgan PTFE vana muhrlash uchun ishlatiladi
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Yarim o'tkazgich uchun ishlatiladigan yuqori toza PFA trubkasi (yarim-57 o'tgan)
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Xitoyda PVDF plitalari ishlab chiqaruvchisi
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Kriogen valfni muhrlash uchun ishlatiladigan KEL-F PCTFE rod
PTFE zaxira halqalari
Spetsifikatsiya diapazoni
PTFE Back-up Rings
Backup rings are designed to prevent extrusion in rubber or polymer o-ring sealing systems. PTFE Back-up rings are the most common anti-extrusion devices used in dynamic and static sealing, designed to prevent the migration of sealing material into the extrusion gap under the system pressure.Our backup rings are made from several kind of materials, PTFE, TFM and PEEK and customized polymer materials. There are made of a broad range of compounds which are highly resistant to thermal or mechanical stress. Back-up rings are typically associated with the use of O-Rings. However, they are also utilized with different types of piston seals, T-seals, and infrequently U-Seals.
The back-up ring’s performance is largely influenced by the component from which it is built. Use a material that is both tough enough to withstand extrusion and elastic enough to have enough memory to make installation simple. For example, the back-up ring should expand during installation but then return to its previous size and form. HONGDA back-up rings help reduce costly downtime and ensure long-term functional
| Tovar nomi: | YUQORI |
| Model soni: | Back-up rings, TFM Seal, PTFE seal |
| sertifikatlash: | FDA, ROHS, REACH, ISO |
| Xom ashyo brendi | DAIKIN, 3M,DUPONT，Xitoy brendi PTFE |
| Minimal Buyurtma miqdori: | 100PCS |
| Ishlash harorati: | -180 ° C ~ + 260 ° C |
| Ta'minot qobiliyati: | Oyiga 50,000 XNUMX dona |
PTFE Back-up rings are the most common anti-extrusion devices employed in dynamic and static sealing, Hongda offers a long list of seal products made of PTFE, TFM, Filled PTFE, PEEK, PCTFE, ETFE,PFA,UHMW, PA
Texnik standart
| Mechanical seals often need to be used in chemical applications. PTFE will handle most chemical applications, chemical attack is no longer an issue. One the down side PTFE wedges can cause fretting of your sleeve or shaft if you have not hard surfaced your shaft or sleeve. The stationary element of your seal will require a PTFE gasket.Choice for O-Ring & Gasket Materials | |||
| Material nomi | Murakkab % | xususiyatlari | rang |
| PTFE | / | Juda past ishqalanish koeffitsienti va mukammal kimyoviy qarshilik. | oq rang |
| Shisha bilan to'ldirilgan PTFE | 30% gacha | Improved ware resistance, compression strength, creep resistance, chemical resistance. | Oq krem |
| Uglerod bilan to'ldirilgan PTFE | 35% gacha | Yaxshilangan elektr va issiqlik o'tkazuvchanligi, yukga chidamlilik, quruq, suv, bug'da qo'llashda ishqalanishning past koeffitsienti, kimyoviy qarshilik. Buyumning yuqori chidamliligi oshadi va ishqalanishning past xususiyatlari. | qora |
| Grafit bilan to'ldirilgan PTFE | 15% gacha | Yumshoq metallarga nisbatan aşınmaya chidamliligini oshiring, ishqalanishni kamaytiring va sirpanish xususiyatlarini oshiring - kimyoviy inertlik. Haroratga chidamliligini qandaydir tarzda yaxshilang. | qora |
| Bronza bilan to'ldirilgan PTFE | 40% gacha | Yaxshilangan siqish kuchi, aşınmaya bardoshli, yuqori issiqlik o'tkazuvchanligi, aşınmaya qarshilik. Kimyoviy qarshilikning pasayishi. | To'q jigarrang |
| Molibden disulfidi (MoS2) to'ldirilgan PTFE | 5% gacha | Increased PTFE hardness and wear resistance. Increased sliding properties and decrease friction. | Moviy jozibali |
| PEEK to'ldirilgan PTFE | 20% gacha | Issiqlik qarshiligini oshirish, surma xususiyatlari, sirt qattiqligi. Dinamik ilovalarda ustun xususiyatlar. | Yorqin jigarrang |
| PEEK | / | Excellent mechanical properties including strength, rigidity, impact resistance, low wear rate and low coefficient of friction, retained over a wide range of service temperatures | Yorqin jigarrang |
| PEEK birikmasi | / | Yuk ostida deformatsiya, aşınma qarshilik, issiqlik kengayishi va elektr o'tkazuvchanligi kabi texnik va kimyoviy xususiyatlarni yaxshilaydi. | / |
| PVDF | / | Resistant to UV radiation and offers high mechanical strength and welding properties. | tabiiy |
| PCTFE | / | Ideal sealing material for lower temperature and high pressure, good mechanical properties | White translucent |
| PFA | / | Excellent chemical and temperature resistance, electrical insulation and translucent. | tabiiy |