Chapter 11: Valves and Actuators with the NAMUR-interface
Process valves can be actuated manually, electrically, pneumatically and hydraulically. Often times pneumatic actuators are in use when it comes to automated process valves. They are mostly either linear actuators (pneumatic cylinders) or rotary actuators. . Whether it's a linear or rotary actuator, the pneumatic automation of process valves is ...
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Chapter 11: Valves and Actuators with the NAMUR-interface
www.hafner-pneumatik.comThis can be easily controlled by using 5 -way directional control valves (5/2-way for fully opening and closing the process valve, 5/3 -way if intermediate positions are required). In single-acting actuators , the reset to basic position is realized by using packs of mechanical springs.
Chapter 5 - Schemes of directional control valves - ISO ...
www.hafner-pneumatik.comISO Schemes of directional control valves Page 8 Hafner-Pneumatik Krämer KG, Stammheimerstraße 10, D-70806 Kornwestheim, Germany, Phone: 0049-7154-178589-0, E-Mail: info@hafner-pneumatik.de, web : www.hafner-pneumatik.com 3/2-way valves 3/2-way valves are mostly used to control single acting actuators. They can be normally closed or normally
Chapter 7 - The pneumatic cylinder - part 1
www.hafner-pneumatik.como Rodless cylinders o Diaphragm cylinders o Rotary cylinders Movement o Linear o Rotary = turning Function o Single-acting o Double-acting o 3- or 4-positions Cushioning o Adjustable, pneumatic cushioning o Flexible cushioning o Without cushioning There is a very wide variety of pneumatic cylinders.
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