Válvula de mariposa con brida revestida de PTFE/PFA
Características
Tipo de doble brida | Estructura simple y conexión estable |
Diseño de asientos | Revestido de PTFE/PFA |
Ciclos de operación | Más de 50.000 veces |
Nivel de fuga | Sellado hermético sin fugas |
Par motor bajo | Funcionamiento sencillo y flexible |
Sellado bidireccional | Cualquier posición de instalación |
Baja resistencia al flujo | Mejorar la eficiencia de los fluidos y reducir el consumo de energía. |
Grado de recubrimiento | Condiciones convencionales y especiales de C1-C5 y CX |
Solicitud | Medio altamente corrosivo y tóxico, ácido, álcali, agua ultrapura |
Certificados | ISO9001, CE, WRAS, ACS |
Presupuesto
Estándar de diseño | EN 593, API 609 |
Brida superior estándar | ISO 5211 |
Estándar de brida final | EN 1092 PN6/10/16, ANSI 125LB/150LB |
Dimensión cara a cara | API 609, EN558-1 Serie 13 |
Estándar de prueba | API 598, EN12266 |
Temperatura | -10℃~150℃ (depende del material de sellado) |
Material de la carrocería | Hierro dúctil, acero al carbono, acero inoxidable |
Material del disco | CS+PTFE/PFA, SS+PTFE/PFA |
Material del eje | SS410/SS416/SS420, SS431, 17-4PH, F304/F316/F51/F53, K500 |
Material del asiento | PTFE, PFA |
Operador | Palanca, caja de engranajes, neumático, actuador eléctrico |
Dimensión
| Tamaño | L | □V/F | PN10 | PN16 | ANSI 150 libras | Arriba Brida | ||||||
| F D | n - F d | n - M | F D | n - F d | n - M | F D | n - F d | ninguno | ||||
| DN50 | 108 | 9*9 | 125 | 4-19 | 125 | 4-19 | 120.7 | 4-20 | F07 | |||
| DN65 | 112 | 9*9 | 145 | 4-19 | 145 | 4-19 | 139,7 | 4-20 | F07 | |||
| DN80 | 114 | 9*9 | 160 | 8-19 | 160 | 8-19 | 152.4 | 4-20 | F07 | |||
| DN100 | 127 | 11*11 | 180 | 8-19 | 180 | 8-19 | 190.5 | 8-20 | F07 | |||
| DN125 | 140 | 14*14 | 210 | 8-19 | 210 | 8-19 | 215.9 | 8-23 | F07 | |||
| DN150 | 140 | 14*14 | 240 | 8-23 | 240 | 8-23 | 241.3 | 8-23 | F07 | |||
| DN200 | 152 | 17*17 | 295 | 8-23 | 295 | 8-23 | 4-M20 | 298,5 | 8-23 | F10 | ||
| DN250 | 165 | 22*22 | 350 | 8-23 | 4-M20 | 355 | 8-28 | 4-M24 | 362 | 8-26 | 4-7/8"-9UNC | F10 |
| DN300 | 178 | 22*22 | 400 | 8-23 | 4-M20 | 410 | 8-28 | 4-M24 | 431.8 | 8-26 | 4-7/8"-9UNC | F10 |
| DN350 | 190 | 22*22 | 460 | 12-23 | 4-M20 | 470 | 12-28 | 4-M24 | 476.3 | 8-29 | 4-1"-8UNC | F10 |
Why Choose PFA/PTFE Lined Flange Butterfly Valve?
Typical Applications
PTFE/PFA lined flange butterfly valve is a corrosion-resistant valve specifically designed for harsh working conditions. The core design is to fully liner a layer of high-performance fluoroplastic (PTFE or PFA) on key components such as the metal valve body cavity and butterfly plate. This lining completely isolates the metal valve body from corrosive media, making it an ideal choice for handling fluids such as strong acids and alkalis.
PTFE/PFA lined flanged butterfly valves are specially engineered for demanding services involving strong acids, caustic alkalis, toxic media, and ultrapure water. They are widely deployed in chemical processing, semiconductor manufacturing, pharmaceuticals, new energy, and environmental protection. These valves safely handle highly corrosive or high‑purity fluids, including concentrated sulfuric acid, hydrochloric acid, hydrofluoric acid, organic solvents, electrolytes, and ultrapure water. With bubble‑tight shut‑off, 180°C temperature resistance, low operating torque, and virtually maintenance‑free performance, they deliver reliable protection for critical process applications.











