D971X electric desulfurization butterfly Products: air pollution, sulfur dioxide is an important pollutant, while more than 60 percent of sulfur dioxide pollutants from industrial flue gas emissions. With the gradual improvement of environmental standards and improve the environment and raise national awareness of the future of industrial flue gas emissions must be desulfurization project. One of the important components in FGD is a valve, the valve for the desulfurization capability requirements are both chlorides, oxides, acid, and the ability of harsh abrasive wear and corrosion wear mud. The correct choice of valve material and structure, to extend the life of the valve is critical FGD butterfly. In many areas of industrial or power requires a complete desulfurization system currently used internationally limestone - gypsum wet, a furnace a tower desulfurization equipment, desulfurization efficiency of the desulfurization unit can reach 95.5%. Limestone slurry system will be strong corrosive medium through desulfurization pipeline after the entire piping system and fluid control valves and valve actuators have a high demand. Desulfurization special butterfly is for the special requirements of desulfurization system design and manufacture. Desulfurization and denitrification butterfly designed for power plant desulfurization and denitrification engineering and design, full account of the desulfurization slurry valve corrosion and wear, ensure that the valve plate lining is the only access to the slurry components, while other parts are not limestone (or lime paste) slurry erosion . Therefore, the body and the stem does not need to use expensive alloys (2205) materials, thus saving costs. Desulfurization butterfly unique seat design is completely separated from the body and the fluid medium, compared with other similar valves, it has a better way to secure the seat, place the seat quickly replace the valve remains zero leakage, and low friction. Butterfly valve plate using high-performance alloys (2205) materials, slurry effectively resist corrosion and wear. D971X electric desulfurization butterfly Applications: desulfurization special butterfly can be widely used in water, sewage, construction, air conditioning, petroleum, chemical, food, pharmaceutical, textile, paper, water supply and drainage and other fluid lines as the regulation and closure of use and membership by material changes to apply to water, gas, oil, different media, suitable temperature -20 ~ 80 ℃. By replacing the valve plate seals, O-rings, disc, shaft and other materials, applicable to a variety of media and different temperatures. Automatic control valves are equipped with high-quality electric actuator or double acting pneumatic actuators can achieve automatic and manual dual opening and closing function. D971X electric desulfurization butterfly structural characteristics: the main structure consists of desulfurization butterfly valve, valve seat, stem and transmission operating mechanism and other components, valve seat with detachable structure, and according to the physical and chemical properties of different media, choose the appropriate high temperature, low temperature resistance, corrosion resistance, light resistance, anti-aging material. The inner and outer surfaces of the valve housing may be ductile temperature electrostatic epoxy powder coating, with a coating having a high corrosion resistance, and ductile matrix has a very high bonding strength, the coating degree of 0.2-0.5mm. 1 The economy of the use of the non-linear structure of eccentric design, with a significant low operating torque characteristics with electric devices when significant; 2. Reasonable design, compact structure, simple installation and removal, easy maintenance; 3. Using rubber lining structure, the circumference of the disc-shaped sealing surface precision machining to finish higher on the rubber seat of low coefficient of friction, longer valve life; 4. valve plate sealing surface flow pattern characteristic linear state, has a small stream resistance coefficient, the valve flow resistance; 5. The unique design of the molded rubber seat has excellent balance and supportive, effective way to avoid damage caused by uneven stress on the rubber valve at the fully closed position, the rubber in the most excellent compression to maintain zero leakage; 6. The two-port valve rubber sealing surface protruding ductile iron flange valve in the pipe installation without additional rubber gasket 7. Selection flexible valve operating mechanism; 8. look beautiful butterfly good corrosion resistance. D971X electric desulfurization butterfly standards: the design and manufacture standard: GB / T 12238-2008 standard length of the structure: GB / T 12221-2005 Flange Standard: GB / T 9113 pressure and temperature rating: GB / T 12224-2005 test test: GB / T 13927-2008 D971X butterfly parts and materials and electric desulfurization conditions: Housing Material GGG40 ductile iron disc with high-performance materials with high-quality low-carbon steel 1.4529 alloy valve shaft made of high quality stainless steel 2Cr13 seat bushings rubber seals EPDN aluminum bronze