By American National Standards Institute.; American Water Works Association
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Extra resources for AWWA standard [for] power-actuating devices for valves and slide gates
The use of air-line lubricators should be avoided. 3. The purchaser should ensure that water vapor is removed from the compressed air to a dew-point temperature below that of the lowest ambient temperature surrounding the actuator and positioner. 2 Chemical. Compressed air free of harmful chemicals shall be used unless otherwise specified. Nonreactive gas (such as nitrogen) may be used in lieu of compressed air if so specified by the purchaser. 3 Temperature/pressure. 03 MPa) shall be used unless otherwise specified.
2 Packaging, Shipping, and Storage Actuators, whether shipped assembled on slide gates or valves or shipped separately, shall be fastened or cushioned in appropriate cartons, crates, or skids to protect them from contact by other material during shipping or handling. Exposed --`,,```,,`,`,`,`,,,`,,`,,,`,,-`-`,,`,,`,`,,`--- Copyright American Water Works Association Provided by IHS under license with AWWA No reproduction or networking permitted without license from IHS Licensee=Earth Tech Inc/5906698001, User=Yanez, Simon Not for Resale, 05/08/2008 13:28:53 MDT 28 AWWA C540-O2 male threads on actuators and controls shall be protected with tape or caps.
5 Working pressure. Actuator sizing shall be based on the minimum driver-medium working pressure specified by the purchaser. Sec. 1 General. Actuators shall be shop coated. Coatings for special service shall be as specified by the purchaser. 2 Internal sufaces. Ail ferrous internal surfaces, except finished working parts, such as shafts and gears, surfaces subject to constant coating by lubricants or working fluids, and corrosion-resistant metals, shall be shop cleaned and finish coated. A light color shall be used to enhance inspection and maintenance.