Electric retractable flange butterfly valve, electric butterfly with expansion joints, telescopic butterfly type

Electric retractable flange butterfly valve, electric butterfly with expansion joints, model electric retractable telescopic butterfly valve Description: Electric retractable butterfly valve flanged butterfly valves and expansion joints two functions into one pipeline, which can play a throttling, can help solve the temperature difference Elimination of internal forces generated by that play a role in stretching. The valve can be in power, metallurgy, petroleum, chemical, gas, urban heating, water and electricity and paper, textile, medicine, food, water supply and drainage, energy, and all non-corrosive gases, liquids, semi-fluid and solid powder pipelines and containers As the use of the regulation and closure. It can be installed anywhere, independent of media flows, otherwise the valve regulating the spacing between two flanges. Electric retractable butterfly features: 1. strong function: intelligent, regulated, switched mode. 2. Compact: volume equivalent to only about 35% of similar products. 3. Easy to use: single-phase power, simple wiring; use the original spherical convex structure, make it easier to observe; oilless free check, waterproof rust installed at any angle. The protection device has double limit, thermal protection, overload protection. Full travel time 15 seconds, 30 seconds, 45 seconds, 60 seconds. And with manual functions. 5. Intelligent NC: standard signal output from the built-in computer chip and module using advanced intelligent control software directly to the receiving computer or industrial instruments, etc. (4-20mA DC / 1-5VDC) intelligent control and precise positioning of the valve opening. Electric retractable valve parts material: Part name Material Body: cast iron, steel, stainless steel, chrome molybdenum steel, alloy steel disc: steel, alloy steel, stainless steel, chrome molybdenum steel ring: rubber, PTFE, poly within fat, stainless steel stem: 2Cr13, stainless steel, chrome molybdenum steel telescopic tube: cast iron, steel, stainless steel, chrome molybdenum steel packing: flexible graphite electric retractable butterfly parameters: Nominal diameter DN (mm): 50 ~ 2000, PN (MPa): 0.6 1.0 1.6 Test pressure strength test: 0.9 1.5 2.4 Seal test: 0.66 1.1 1.76 gas seal test: 0.6 0.6 0.6 Suitable temperature: ≤80 ℃ Applicable medium: air, water, steam, gas, oil and the like. Drive Type: manual, worm gear, gas transmission, electric drive.