原文：
Oil and water don't mix. Neither do oil leaks and EPA regulations. At Florida's City of Cocoa Charles H. Dyal Water Treatment Facility, this posed a problem. The accumulator system used for the hydraulic actuators contained more than 100 gallons of hydraulic fluid which frequently leaked. "We had a common hydraulic pneumatic tank that we utilized to actuate those four ball valves on our high service pumps," said Jeff Childers, the Dyal plant's Assistant Superintendent. "Not only was it a single point of failure for all four of those pumps, but it was a potential environmental hazard as a result of oil leaking on several occasions." The plant had been in the process of replacing the electrical actuators on its butterfly valves with Rexa electrohydraulic (Electraulic) actuators from Koso America. Carrying out a similar replacement on the ball valves resolved the leakage issues as well as improved reliability. The city of Cocoa on Florida's Atlantic coast provides potable water to all of central Brevard County, including its own 16,000 residents as well as those in nine other cities, the Kennedy Space Center and all the cruise ships sailing out of Port Canaveral. The water comes from a mix of surface and ground sources. The butterfly valves at the Dyal plant had been designed to use electromechanical actuators, but over time these had turned into a maintenance nightmare. "We were having failures due to age and bad technology," said Childers. "This created a lot of downtime where I either had to send components back to the factory for major repairs or we had to repair equipment on site because of damaged actuators." Looking for a long-term solution to these maintenance issues, the plant installed an Electraulic actuator on one valve as a trial in 2005. These self-contained actuators incorporate hydraulic, electronic and mechanical technologies. There are two main components ? the Electraulic power module and a control enclosure. They do not require an external hydraulic pump or tubing, but operate by moving hydraulic fluid from one side of a double-acting cylinder to another.
原文来自： http://blog.reelloop.com/4884/news/valve-announces-downloadable-content-left-4-dead-2-huge-sales/

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译文：新的执行机构改进阀门控制
油和水不相溶。也没有漏油和EPA的规定。在佛罗里达州的可可查尔斯H Dyal城市污水处理厂，这提出了一个问题。累加器系统使用的液压作动载100多加仑的液压油泄漏频繁。 “我们有一个共同的液压气压罐，我们用来开动就高这四个服务泵球阀，”杰夫说德斯的Dyal工厂的助理监督。 “这不仅是一个失败的所有这些泵的4个单点，但它是一个潜在的，作为多次漏油造成的环境危害。” 该工厂已取代其蝶阀与电动执行机构的过程Rexa电液（Electraulic）由高三美器。进行一项解决了渗漏问题以及改善了可靠性球阀类似的替代品。 在可可在佛罗里达的大西洋沿岸城市提供饮用水，中央布里瓦德县，包括它自己的16000名居民以及其他九个城市的，肯尼迪航天中心，所有的游船港口航行卡纳维拉尔了。的水来自地表水和地下水来源的组合。 在Dyal厂的蝶阀的设计，使用机电致动器，但随着时间的推移，这些已成为维护一场恶梦。 “我们有失败的，由于年龄和恶劣的技术，说：”德斯。 “这创造了大量的停机时间在那里我也不得不把零部件，以供大型维修厂或我们要修复损坏的驱动器，因为现场的设备。” 为长远解决这些维护问题来看，该工厂安装在一台在2005年作为一个Electraulic审判阀门执行器。这些独立的驱动器将液压，电子和机械技术。有两个主要部件 - Electraulic电源模块和一个控制附件。它们不需要外部液压泵或管，但经营，从一个一个双作用液压缸端到另一个。

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