气压器致动器

Overview LHA multi-spring diaphragm actuator converse the output pressure of pneumatic control instrument to the changes in stem displacement . Connecting with the body of control valve , it can be moved to the location that the spool corresponding with the input signal . Using multi-spring actuator , compact structure and big output power . Action Type Direct action : LHA1D,LHA2D,LHA3D,LHA4D Diverse action : LHA1R,LHA2R,LHA3R,LHA4R Note : Direct action actuator : diaphragm chamber gas pressure increases , the actuator stem will put downward movement . Diverse action actuator : diaphragm chamber gas pressure increases , the actuator stem will put upward movement . Materials Diaphragm cover : carbon steel ,stainless steel Diaphragm : EPR with nylon fabric ,Buna-N-rubber with nylon fabric Handspike : 2Cr13,304,316 Bracket : ZG25 Spring range : 20 100,80 240KPa Supply pressure : 140 400KPa Air CONN. : Rc1/4’’ TEM. : -30 +70°C Accessories : positioner ,air filter regulator ,lock-up valve,travel switch,hand wheel etc.