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Accesorios de elementos de membrana RO para tratamiento de agua
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Accesorios de tubería de PVDF de alta calidad para aplicaciones industriales y de alta pureza
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Sellos energizados por resorte utilizados para válvulas criogénicas
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Piezas mecanizadas de plástico PTFE, PEEK, PCTFE, TFM
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Varilla de PTFE rellena de carbono y PTFE rellena de fibra de vidrio utilizada para sellar válvulas
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Tubo de PFA de alta pureza utilizado para semiconductores (Semi-57 aprobado)
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Fabricante de láminas de PVDF en China
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Varilla de PCTFE KEL-F utilizada para sellado de válvulas criogénicas
Asientos de válvula de bola utilizados para GNL
Rango de especificación
Ball Valve Seat and Seal Rings
The most common fluoropolymer application is used as sealing material for Valves. We provide valve seats,seat inserts, thrust washers and backup rings, stem packings by wide range of materials, such as PTFE, filled PTFE, TFM , PCTFE, PEEK，Vespel®, PCTFE, PI, Nylon and Acetal.
Over the years, based on our own advantages in the field of high performance polymer materials, We've been working with valve customers all over the world to manufacture various soft seals & seats.
| Elección de material | Propiedades principales | Rango de temperatura |
| PTFE virgen | Muy bajo coeficiente de fricción y excelente resistencia química. | -40 ° C a 260 ° C |
| 15% and 25% Glass Filled PTFE | Decreased compressive strength and lower deformation under load than virgin PTFE. Better wear resistance, higher compressive strength and lower deformation under load. | -40 ° C a 260 ° C |
| 5%,15% and 25% Carbon Filled PTFE | Improved mechanical strength compared with virgin PTFE. Excellent wear properties, retains excellent frictional properties, good choice for seals and rings in dynamic and high-pressure applications | -40 ° C a 260 ° C |
| 5% MoS2 Filled PTFE | Mayores propiedades de dureza y resistencia al desgaste del PTFE. Mayores propiedades de deslizamiento y disminución de la fricción. | -40 ° C a 260 ° C |
| PTFE relleno de acero inoxidable | Extremely hard wearing. Excellent strength and stability under extreme loads and elevated temperatures. | -40 ° C a 260 ° C |
| TFM Series | Much denser polymer structure than Virgin PTFE. Displays better stress recovery. | -80 ° C a 260 ° C |
| PCTFE | Ideal sealing material for lower temperature and high pressure, good mechanical properties. Excellent for LNG, Cryogenic and Oxygen use. | -240 ° C a 120 ° C |
| OJEADA | Excellent chemical resistance and mechanical properties at elevated temperatures. | -40 ° C a 260 ° C |
| PEEK relleno de carbono | Many similar properties to Virgin PEEK. Particularly suitable for elevated temperatures and high load situations. | -40 ° C a 260 ° C |
| PFA | Excellent chemical and temperature resistance, electrical insulation properties | -100 ° C a + 260 ° C |
| UHMWPE | Highly resistant to corrosive chemicals, with the exception of oxidising acids and organic solvents. | -60 ° C a + 80 ° C |
| Acetal y Delrín | Good resistance to wear and deformation under load. | hasta 80 ° C |
| PI (Poliimida) | Significantly higher modulus, excellent wear and friction properties, good thermal-oxidative stability and high mechanical strength | hasta 320 ° C |
| Customized Material by HONGDA | Designed & produced as per specific applications | / |
Hongda provide valve seats materials (PTFE, TFM, filled PTFE, PCTFE, PEEK,UHMW, Vespel®)- seats and seals for all types of valves including ball valves, gate valves,butterfly valves and plug valves.
Supplying Ball Valve Seats Used For LNG to cities in