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AWWA C509-15

Current Revision

Resilient-Seated Gate Valves for Water Supply Service

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This standard describes iron-body resilient-seated gate valves with nonrising stems (NRS) and outside screw-and-yoke (OS&Y) rising stems, including tapping gate valves, for water supply service having a temperature range of 33° to 125°F (0.6° to 52°C). These valves are intended for applications where fluid velocity does not exceed 16 ft/sec (4.9 m/sec) when the valve is in the full-open position. Gate valves described by this standard are 3-in. (75-mm) through 36-in. (900-mm) nominal pipe size (NPS). The minimum design working water pressure shall be 200 psig (1,380 kPa [gauge]) for 3- through 12-in. (75- through 300-mm) sizes and 150 psig (1,034 kPa [gauge]) for 14- through 36-in. (350- through 900-mm) sizes. This standard is not intended to describe special conditions of gate valve installation or operation, such as built-in power drive, installation in unusually corrosive soil, conveyance of unusually corrosive water, excessive water hammer, frequent operation (as in filter service), or operation in a throttled position. These conditions are beyond the intended scope of this standard and require special consideration in design and construction. Joint accessories for end connections, such as bolts, gaskets, glands, and follower rings, are not described in this standard. This digital download is subject to AWWA’s Single User License Agreement. Multi-user licenses are also available by contacting us. Learn more about AWWA’s digital downloads including frequently asked questions.

SDO AWWA: American Water Works Association
Document Number C509
Publication Date Jan. 1, 2015
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2015 Revision