Stainless steel PTFE flange butterfly valve uses stainless steel as the valve body/disc, PTFE as the sealing element, and flange connection. Resistant to strong corrosion (acid, alkali, organic solvents), well sealed, wide temperature resistance, capable of cutting/regulating fluids. Suitable for chemical, food, pharmaceutical and other fields, manually or automatically driven, adaptable to various working conditions.
D341F-16PStainless steel PTFE flange butterfly valve
Stainless steel PTFE flange butterfly valveIt is a valve that combines stainless steel material and PTFE sealing components, widely used in many fields such as chemical, food, pharmaceutical, etc. The following is its detailed introduction:
structureMainly composed of stainless steel valve body, valve stem, butterfly plate, PTFE seals, etc. The valve body and butterfly plate are made of stainless steel materials such as 304, 316, etc., which have good strength, corrosion resistance, and oxidation resistance; The valve stem is usually made of stainless steel to ensure transmission stability; The PTFE seal is installed on the valve seat to provide sealing performance for the valve.
principleBy rotating the valve stem to drive the butterfly plate to rotate, the valve can be opened and closed. The rotation angle of the butterfly plate is between 0-90 °, and at 0 °, the valve is fully closed to block the flow of the medium; At 90 °, the valve is fully open, allowing the medium to pass smoothly. The angle can also be adjusted between 0-90 ° to regulate the flow rate of the medium.
Strong corrosion resistance：Stainless steel PTFE flange butterfly valveThe valve itself has resistance to various chemicals, and PTFE material can withstand the corrosion of almost all chemicals, including aqua regia, concentrated acid, strong alkali, etc. Therefore, this valve is suitable for the transportation and control of highly corrosive media.
Excellent sealing performancePTFE material has a low friction coefficient and good self-lubricating properties. It can tightly adhere to the butterfly plate, effectively preventing medium leakage and achieving bidirectional zero leakage, ensuring the safe and stable operation of the system.
High temperature and low temperature resistanceStainless steel can operate within a wide temperature range, while PTFE materials are typically used within the temperature range of -180 ℃ to 260 ℃, and can adapt to various high and low temperature conditions.
Long service lifeStainless steel and PTFE materials both have good wear and aging resistance, reducing failures caused by wear and aging, extending the service life of valves, and reducing maintenance costs.
chemical industryIn the production processes of petrochemicals, coal chemicals, etc., it is used to transport and control various highly corrosive and high-purity chemical raw materials, such as sulfuric acid, hydrochloric acid, sodium hydroxide solution, organic solvents, etc.
Food and beverage industryDue to their compliance with food hygiene standards, stainless steel and PTFE materials can be used for the transportation and control of food grade fluids such as juice, milk, and drinking water, ensuring that the fluids are not contaminated during the production process.
pharmaceutical industryIn the process of drug production, high requirements are placed on the cleanliness and corrosion resistance of fluid transportation. Stainless steel PTFE flange butterfly valves can be used to transport various chemical reagents, drugs, etc., ensuring the quality of drugs.
environmental protection industryIn environmental protection projects such as sewage treatment and waste gas treatment, it is used to control the discharge and treatment of corrosive wastewater and acidic and alkaline waste gas, effectively prevent valve corrosion, and ensure the normal operation of treatment equipment.
Nominal diameter and pressureAccording to the actual pipeline diameter and system pressure, select valves with appropriate nominal diameter and nominal pressure to ensure that the valves match the pipeline system and prevent normal use from being affected by insufficient pressure or improper diameter.
connection methodAlthough it is a flange connection, it is necessary to confirm the standards and specifications of the flange, such as national standards, American standards, German standards, etc., to ensure correct installation with the pipeline flange.
Operating TemperatureClarify the temperature range of the actual working environment, ensure that the valve material can work normally at this temperature, and avoid valve damage caused by high or low temperature.
Stainless steel PTFE flange butterfly valvemedium characteristicsIn addition to considering corrosiveness, attention should also be paid to the viscosity, particle size, and other characteristics of the medium. If the medium contains particles, special design or additional protective measures may need to be considered for the internal structure of the valve to prevent jamming.
