Pneumatic Control Valve

Feature: Using the balancing valve core structure , little axial unbalanced force, large allowable differential pressure, good stability . socket duplicity is good, disassembling convenience and easy maintenance. The mental valve core structure for many work situation up to scratch6 leak standard ,soft sealing structure valve core up to scratch5 leak standard. The body fluid mechanics theory designed according to such low flow resistance in surface flow ,large adjustable scope, Inherent adjustable proportion is 50:1, the rated flow coefficient increases by 30%, Actuator adopt spring structure ,highly reduced by 30%,weight reduced by 30%. ZJHMW bellows seal regulator valve, mobile stem formed completely sealed ,plugging away fluid leakage. Technical Parameters: DN(mm) 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 Seat size(mm) 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 Rated KV Linear 6.9 11 17.6 27.5 44 69 110 176 275 440 630 1000 1600 2156 2816 Equal percentage 6.3 10 16 25 40 63 100 160 250 400 690 900 1440 1960 2560 Nominal Pressure(Mpa) 1.6,2.5,4.0,6.4,10 Travel (mm) 16 25 40 60 100 130 Diaphragm effective areas(cm2) 280 350 560 900 1400 Piston type Signal range Kpa 20-100,40-200,80-240 Supply pressure Mpa 0.1-0.4 0.4-0.7 Inherent flow characteristics Linear ,Equal-percentage,Quick-open Inherent rangeability 50:1 Leakage level Hard-sealing 5,4 level,Soft-sealing 6 Flange size Conform with JB/79.1(2)-94,HG20592-97,GB,ANSI,JIS,DIN etc. standard Body material WCB,304,316,WC6,WC9,Ti,Ni,Hastelloy,Monel etc. Flug materials 304,316,420,Ti,Ni,Hastelloy,Monel etc. Working TEM -40 +230(normal TEM.),+230 +45(middle TEM .),+450 +560(high TEM.),-40 -196(low TEM.) Series type Normal TEM.,middle TEM.,low TEM.,bellows sealing type,jacket insulation type ,shut-off control type