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KST&OEM&ODM Brand
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Product Features
▶ The fluorine-lined butterfly valve is designed for high-purity and non-contaminating applications. It offers excellent corrosion resistance, wear resistance, pollution prevention, and leakage protection.
▶ The sealing between the valve disc and the valve seat adopts an O-type elastic diaphragm seat with a flexible lip design to ensure no internal leakage and automatic compensation capability.
▶ The valve body uses a two-piece butterfly plate structure with an eccentric shaft and segmented design. The valve seat is replaceable or adjustable, making it easy to maintain and service.
▶ Equipped with an ISO standard mounting pad, it can be fitted with pneumatic, electric, hydraulic, and electro-
hydraulic actuators for automated operation.
▶ Actuation Methods：Manual, Pneumatic, Electric, Hydraulic, Electro-Hydraulic
Technical Parameters
| Item | Specification |
| Nominal Diameter | 2" ~ 48", DN50 ~ DN1200 |
| Pressure Rating | PN16 ~ PN25, CL150 ~ CL300 |
| Model | D71F, D41F |
| Body Material | Ductile iron, carbon steel, stainless steel (304, 316, etc.) |
Lining & Seal Materials and Temperature Range
| Material | Temperature Range |
| F46 (PFA) Lining | -29℃ ~ 150℃ |
| EPDM Rubber | -29℃ ~ 120℃ |
| NBR (Nitrile Rubber) | -20℃ ~ 90℃ |
| FKM (Viton®) Rubber | -29℃ ~ 180℃ |
Application Recommendations
Suitable for industries such as petroleum, petrochemical, fine chemicals, electric power, and water treatment.
Product Features
▶ The fluorine-lined butterfly valve is designed for high-purity and non-contaminating applications. It offers excellent corrosion resistance, wear resistance, pollution prevention, and leakage protection.
▶ The sealing between the valve disc and the valve seat adopts an O-type elastic diaphragm seat with a flexible lip design to ensure no internal leakage and automatic compensation capability.
▶ The valve body uses a two-piece butterfly plate structure with an eccentric shaft and segmented design. The valve seat is replaceable or adjustable, making it easy to maintain and service.
▶ Equipped with an ISO standard mounting pad, it can be fitted with pneumatic, electric, hydraulic, and electro-
hydraulic actuators for automated operation.
▶ Actuation Methods：Manual, Pneumatic, Electric, Hydraulic, Electro-Hydraulic
Technical Parameters
| Item | Specification |
| Nominal Diameter | 2" ~ 48", DN50 ~ DN1200 |
| Pressure Rating | PN16 ~ PN25, CL150 ~ CL300 |
| Model | D71F, D41F |
| Body Material | Ductile iron, carbon steel, stainless steel (304, 316, etc.) |
Lining & Seal Materials and Temperature Range
| Material | Temperature Range |
| F46 (PFA) Lining | -29℃ ~ 150℃ |
| EPDM Rubber | -29℃ ~ 120℃ |
| NBR (Nitrile Rubber) | -20℃ ~ 90℃ |
| FKM (Viton®) Rubber | -29℃ ~ 180℃ |
Application Recommendations
Suitable for industries such as petroleum, petrochemical, fine chemicals, electric power, and water treatment.
