Pneumatic actuator with a wealth of variants
The double-acting pneumatic linear actuator DFPC from Festo gives users in water technology, mining and power stations as well as the paper and cellulose or steel industries freedom of choice. They can order the actuator for process valves such as slide and knife gate valves or pinch valves or process valves without a housing, either as low-cost, preconfigured standard variants from stock or as individually configured versions.
Users can choose from low-cost, predefined standard variants that are available quickly from stock or opt for individual configurations of stroke, length of the spacer bolts at the bearing cap, piston rods of differing lengths, thread types and diameters as well as SIL certification, if required.
Long actuator life
The one thing all the different versions have in common is the sturdy and durable design of the pneumatic actuator DFPC. The piston rod, screws, nuts and tie rods are made of stainless steel, while the barrel and end caps are made of aluminium; this ensures that the actuators have a long service life. The end-position cushioning on both sides enables high travel speeds while optional proximity sensors permit reliable end-position detection. An external displacement encoder is available for more detailed information about the actual actuator position.
Pneumatic actuators have proven to be shock-proof and durable since, in contrast to electric actuators, they are made up of a small number of components and are thus less likely to break down. Pneumatic actuators are also resistant to continuous loads and remain maintenance-free over their entire service life. With an average service life of up to 1 million switching cycles, they will outlast any process valve. This is true even in harsh environments in process industries where high temperature differences, contamination and humidity can occur.
Benefits of pneumatics
Deposits or caking can result in significantly increased breakaway torques. This is particularly the case if process valves are actuated infrequently or not at all for long periods of time. This is often the case in wastewater treatment plants, for example. The overload protection offered by pneumatic actuators is a major advantage here. This is because pneumatic components enable the operating pressure and thus the power to be increased without any problems. They can withstand high loads even at standstill without incurring any damage and have large power reserves for overcoming higher breakaway torques.
Pneumatic actuators also offer advantages over electric drive technology when used in ATEX zones. In the ATEX zone, the actuators are supplied with compressed air via tubing while the control electronics are installed in non-hazardous areas. Pneumatic actuators are ATEX-approved up to zone 1 as standard.
费斯托 (Festo)是一家全球性的独立的家族企业，总部位于德国埃斯林根。自成立以来，Festo在工业自动化技术和技术教育方面制定标准，从而为环境、经济和社会的可持续发展做出贡献。公司为超过35个行业的30万家工厂和过程自动化客户提供气动和电驱动自动化技术解决方案，其中生命科学和实验室自动化业务受到越来越多的关注。Festo产品和服务遍布176个国家。2022年，费斯托在全球61个国家的250多个分支机构拥有约20800名员工，实现销售额38.1亿欧元。每年约7%的销售额用于研发。在这家学习型企业，1.5%的销售额用于基础和进一步培训。Festo 教学培训 (Didactic SE) 是全球领先的技术教育和培训供应商，为全球客户提供工业环境中全面的数字化和常规学习解决方案。
