OEM China PTFE Seat Butterfly Valve Suppliers - D71X Series DN40-DN600 Factory Direct with Corrosion Resistance Supplier, Factories
Product Description
| Valve Type: | Wafer butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -20°C<T<120°C | Operation: | Handle/Lever |
Characteristics
PTFE butterfly valve is a quarter turn valve that controls flow by rotating the valve disc inside the pipeline. Rotate the actuator to rotate the valve stem and disc 90 degrees. When the disc is perpendicular to the flow direction, the valve is completely closed; When the valve disc is parallel to the flow direction, the valve is fully opened, and the position between the two can be used to adjust the flow rate.
Advantages
1. Super strong corrosion resistance performance
The PTFE lining on the inner cavity of the valve body and the surface of the butterfly plate has extremely high stability against most corrosive media such as strong acids (such as sulfuric acid, hydrochloric acid), strong bases (such as sodium hydroxide), organic solvents, and salt solutions. It can isolate the metal valve body from contact with the media, avoid corrosion damage, and is suitable for strong corrosion conditions such as chemical, chlor alkali, and pharmaceutical industries.
2. Compact structure, easy installation
The clamping design uses double headed bolts to directly clamp between two pipeline flanges, without the need for additional valve flanges. The valve body thickness is only about one-third of that of traditional flange butterfly valves, occupying a small space, especially suitable for scenarios with dense pipelines and limited installation space; Simultaneously simplifying the installation steps can reduce the overall cost of pipeline layout.
3. Excellent sealing performance and low leakage rate
Combined with PTFE valve seat and eccentric structure design (single eccentric/double eccentric/triple eccentric), it can achieve a tight fit between the butterfly plate and the valve seat, and achieve zero leakage sealing effect under most working conditions; The low friction characteristics of PTFE can also reduce the wear of the sealing surface during the opening and closing process, extending the sealing life.
Packing
Standard export wooden case packaging
Application Scenarios
In the chemical industry, it is a standard configuration for production lines such as sulfuric acid and chlor alkali; In the pharmaceutical industry, its clean characteristics that comply with GMP standards make it suitable for sterile medium delivery systems; In the desulfurization system of the power industry, it can also effectively solve the problem of valve flushing caused by limestone slurry.
Frequently Asked Questions (FAQ)
This valve is specifically lined with PTFE, making it ideal for highly corrosive media including strong acids (sulfuric acid, hydrochloric acid), strong bases (sodium hydroxide), organic solvents, and corrosive salt solutions.
The standard operating temperature range for this concentric wafer butterfly valve is -20°C < T < 120°C.
The wafer design clamps directly between existing pipeline flanges, reducing the valve body thickness to about one-third of a standard flanged valve. This saves space, simplifies installation, and lowers piping costs.
Yes, this concentric wafer butterfly valve provides bidirectional sealing with a zero-leakage performance grade.
The valve is manufactured in accordance with the EN593 standard and features precision investment casting workmanship.
All valves are packed using standard export wooden cases to ensure optimal protection during sea and air transit.
