... This series can be divided into standard type, heat sink type, low temperature type, sylphon sealed type, jacket insulated type, etc. Product nominal pressure (PN): ... 1.6, 4.0, 6.4 (MPA) Valve body caliber: 20-220 mmApplicable fluid temperature ... workplaces, reaching the leakage level of Class IV.ZXMQ type of soft sealing structure spool has reached the leakage ...