D973 Electric Butterfly Valve

DLH Series Electric Valve (control valve / switch type)
Music Department's production of electric butterfly valve, is the introduction of foreign advanced technology industries on the basis of specially designed, well-made products. Use of intelligent control and positioning, with the German company Siemens, the electrical valve positioner or valve positioner supporting domestic electrical, enter 4 ~ 20mA DC signal and 0.5 ~ 0.7Mpa Air Source can control the operation and realize the pressure, flow, temperature, liquid level and other parameters. It is based on compressed air as a driving force, driven spool in the valve stem body rotation 90 °, can be achieved fully open - fully closed action. The product is classified according to their sealing properties of metal sealing and soft sealing. Has a compact structure,
Volume precision small, reliable operation, good sealing is easier to maintain, easy installation, strong adaptability. It can be widely used in petroleum, chemical industry, light industry, pharmaceuticals, paper and other industrial automation systems for remote centralized control or local control.
Technical parameters and performance
1, valve Nominal Diameter: 50 ~ 1400mm Nominal Pressure: PN1.6Mpa Connection Type: Flanged according to JB78-59 JB79-59 Material: WCB, HT200 ZG251 ZG1Cr18Ni9Ti, ZG1Cr18Ni12MoTi, CF8, CF8M lining tetrafluoroethylene temperature range: ambient temperature -40 ℃ ~ 180 ℃, the temperature -40 ℃ ~ +450 ℃ Packing: V-type PTFE packing, impregnation PTFE packing, asbestos braided packing, flexible graphite
2, valve spool type valve plate within the components of a linear flow characteristics of materials Icr18Ni9Ti 0Or17Ni12Mo2 Seat Material: PTFE (PTFE), rubber, metal seat, Stem Material: stainless steel, PTFE lined adjustable ratio: 100 : 1