加卸载气缸.pdf

Servo Cylinders Types: ZAED, ZBED and ZFED Application Opening, closing and stepless positioning of valves, slides, flappers, engine speed governors and injection pumps, louvers etc. Function The cylinder is designed for exact positioning proportional to the servo pressure at inlet E: The servo pressure acts against the force of the control spring (5) via the roller diaphragm (6) and the piston (3). Diagram No. 1 shows the cylinder stroke over servo pressure for standard control springs. The high performance rolling diaphragm (6) is pressure tight and stick-slip free. The An inlet nozzle (14) protects the diaphragm against active area of the diaphragm is constant. Polished surfaces contacts the active surface pressure shocks. It can be removed, if the cylinder is of the roller diaphragm. They are protected against incoming dirt by a filter plug. pressurized via proportional controller (e.g. HOERBIGER types P2... and P3...). The cylinder is designed for non-lub service. The diaghragm surface facing the piston (3) is threated with ! Attention! Never attempt to disassamble a cylinder whilst under pressure! a special powder (gray) for low friction and long service life. The piston rod (3) is made of polished stainless steel and guided by Teflon threated