•实心不锈钢 •无焊缝，O形环或硅油泄漏而引起的系统问题 •*的应用如冷水机组，锅炉，制冷系统，泵和压缩机 •美国controller压力变送器250系列

•All wetted parts made of Series 300 stainless steel •Provided in a rugged NEMA 4 enclosure •Perfect for harsh applications such as chillers, boilers and refrigerant systems 美国controller差压变送器560系列