控制阀

Materials Name Material Body &Bonnet ZG230-450,ZG0Cr18Ni9 Plug & Seat 0Cr18Ni9,0Cr18Ni9+PTFE,0Cr18Ni9+Stellite Packing PTFE,flexible graphite Bellows 0Cr18Ni9 Gasket Graphite wound gaskets Membrane cover A3,0Cr18Ni9 Bellow diaphragm With Nylon fabric NBR Spring 60Si2Mn Stem & Handspike 0Cr18Ni9,2Cr13 Technical Parameter DN 25 32 40 50 65 80 100 125 150 200 250 300 350 400 Sear diameter mm 25 32 40 50 65 80 100 125 150 200 250 300 650 400 Rated KV 10 16 25 40 63 100 160 250 400 630 1000 1600 1960 2560 Nominal pressure Mpa 1.6,2.5,4.0,6.4 Travel mm 16 25 40 60 100 130 Effective diaphragm area Ae(cm2) 280 350 560 900 1400 Signal range Kpa 20-100,40-200,80-240 Supply pressure 0.1-0.4 0.4-0.7 Inherent flow characteristics Linear ,equal-percentage,quick open Inherent adjust ratio 30:1 Leakage III,IV Flange size Conform with the standard of JB/79.1(2)-94,HG20592-97,GB,ANSI,JIS,DIN etc. Body material WCB,304,316,WC6,WC9,Ti,Ni,Hastelloy,Monel etc. Plug material 304,316,420,Ti,Ni,Hastelloy,Monel etc. Working TEM. -40 +230(normal TEM.),+230 +450(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