... controlling fluid based on traditionalelectric single seated and cage guided control valve. The trimof valve (DN40 above) adopts pressure ... balanced structure,thus stable control can be realized with smaller operationforce and the product ... stability is good.SpecificationDN mmDN40-400 mmPNANSI 150,300,600 JIS10K,30K 60KMaterial of parts BodyWCB,CF8,CF8M,Hastelloy ...