产品特点 　　DF3-W正联锁阀是控制压力机制动器、离合器正常工作的一种专用气动元件。它保证离合器与制动器必须保持一定的结合和脱开顺序，即在压力机起动时，制动器必须首先脱开0.03秒。然合离合才能结合；在压力机停车时，离合器必须首先脱开0.01秒，然后制动器动作。该阀反应灵敏、动作可靠。 DF3-W positively locked solenoid valve is exclusive pneumatic elements controlling the actions of the brake and cluth of a press. It ensure that cluth and brake maintain a certain procedure of gear in and release, i.e. when press starts the brake shall first release for 0.03 sec before clutch gear-in; and when the press stops, the clutch shall first release for 0.01 sec before brake active.