bokomslag AWWA C800-21 Underground Service Line Valves and Fittings
Vetenskap & teknik

AWWA C800-21 Underground Service Line Valves and Fittings

American Water Works Association

Pocket

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  • 40 sidor
  • 2021
This standard covers valves, fittings, service saddles, and meter setters for use in a service line from the main through the meter valve or meter-setting appurtenance. Valves, fittings, and meter setters described in this standard include . in. (12.5 mm) through 2 in. (50.8 mm). Service saddles described have outlet sizes . in. (12.5 mm) through 2 in. (50.8 mm) and fit mains of 2 in. (50.8 mm) through 12 in. (304.8 mm). Valves include corporation stops and curb stops. Fittings include various types of couplings and adapters. Service saddles include various types of devices circumferentially attached to the main. Meter setters include various configurations of copper tubing, valves, and fittings for the holding of 5/8-in. (15.875-mm) through 2-in. (50.8-mm) meters. Major revisions to this edition of C800 include: 1. An advisory statement was added in the foreword (Sec. II.B) regarding chlorine and chloramine degradation of elastomers. 2. Updated Sec. 1.3 Applicability to address considerations regarding suitability for wastewater applications. 3. Sec. 2 References was updated. 4. Added definitions for potable water, reclaimed water, and wastewater in Sec. 3. 5. Three non-Bismuth low-lead silicon-based material options were added to Sec. 4.1.2 Castings. 6. A new Sec. 4.1.2.2 was added to address dezincification performance of alloys utilized in areas with aggressive water. 7. A new Sec. 4.1.2.2.1 was added to make purchaser requirements from gate valve and/or hydrant specifications, such as maximum zinc content, applicable to C800. 8. Sec. 4.1.3 Cast service saddles was revised to include the option of using the low-lead copper alloys that are accepted for use in Sec. 4.1.2 Castings. 9. A new Sec. 4.1.6.1 was added to make Sec. 4.1.2.2 applicable to component parts. 10. Sec. 4.1.5 Saddle corrosion protection was revised to reflect the changes made to Sec. 4.1 and a requirement was added for materials in contact with potable water to conform to NSF/ANSI/CAN 61. 11. A new Sec. 4.4.4.1.2 was added on angle of thread, thread height, and thread truncation. 12. A new Sec. 4.4.4.1.2 was added for tolerances for thread truncation, taper, lead, and angle. 13. Two new tables were added: new Table 8, Standard AWWA Corporation Stop Tolerance of Thread Truncation, and new Table 9, Standard AWWA Corporation Stop Tolerance of Thread Taper, Lead, and Angle.
  • Författare: American Water Works Association
  • Format: Pocket/Paperback
  • ISBN: 9781647170530
  • Språk: Engelska
  • Antal sidor: 40
  • Utgivningsdatum: 2021-10-30
  • Förlag: American Water Works Association,US