pneumatic diaphragm sleeve control valve

It widely used in chemical, petroleum, power plants, light industry, textile, metallurgical industrial production. Mainpartsmaterials: Valvebody,valvecover:ZG230-450,ZGlCr18Ni9Ti Spool,thevalveseat:1Cr18Ni9T, LevinTitaniumAlloyWeldingDivision+1Cr18Ni9T stuffing: PTFE flexible graphite Gasket:Rubber,,graphitespiralwoundgasket Membranecovered:A3 1Cr18Ni9TI CorrugatedDiaphragm:NBRfolderenhancedpolyesterfabric Spring:60Si2Mn Stem,putting:2Cr13,1Cr18Ni9Ti ZJHM pneumatic sleeve control valveMainly technical date and performance parameter The mainly data of adjustment actuator Nominal size2540 506080100 150200Seat diameter253240506580100125150200Rated flow coefficientLinear1117.627.64469110176275440690Equal percentage1016254063100160250400630Nominal pressure0.6 1.6 4.0 6.4Stroke1016254060flow characteristicLinear, equal percentageMedium temperature-20 +200,-40 +250(norminal temp),-40 425(middle temp)Flange sizeCast iron flange size as JB78,cast steel flange size as JB79Flange typeFlange seal face type as JB77,cast steel flange as smoothly face ,and the cast steel flange is foveateBody materialPN(MPa)0.6,1.6HT2004.0,6.4WCB,ZG1Cr18Ni9Ti,ZG0Cr18Ni12Mo2TiBonnet typeOrdinary type(nominal temp),hot chip(middle temp)Spool material1Cr18Ni9Ti,ZG0Cr18Ni12Mo2TiAdjustable ratio R50:1Ordering Information: 1. Product name and model 2. DN 3. Rated flow coefficient KV 4. Nominal pressure and differential pressure 5. Valve and valve components of materials 6. Connection 7. Transmission 8. Flow characteristics 9. Suitable temperature 10. Control signal is a 4-20mA current or 1-5v voltage signal 11. Valve product with attachments so that we can correct for your selection.