ANSI AWWA C515 09

ANSI AWWA C515 09

ANSI AWWA C515 09

ANSI AWWA C515 09 – AWWA C515:2009
Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Service
American Water Works Association / 01-Nov-2009 / 40 pages
This standard covers reduced wall, 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 degrees to 125 degrees F (0.6 degrees to 52 degrees C). These valves are intended for applications where fluid velocity does not exceed 16 ft/second (4.9 m/s) when the valve is in the full open position.

Contents of ANSI AWWA C515 09
All AWWA standards follow the general format indicated subsequently. Some variations from this
format may be found in a particular standard.
Foreword
I Introduction…………………………….. vii
I.A Background……………………………… vii
I.B History……………………………………. vii
I.C Acceptance………………………………. vii
II Special Issues…………………………….. ix
III Use of This ANSI AWWA C515 09 Standard………………….. ix
III.A Purchaser Options and Alternatives… ix
III.B Modification to Standard…………….. x
IV Major Revisions…………………………. x
V Comments………………………………… x
Standard ANSI AWWA C515 09
1 General
1.1 Scope……………………………………….. 1
1.2 Purpose…………………………………….. 2
1.3 Application……………………………….. 2
2 References………………………………… 2
3 Definitions………………………………. 5
4 Requirements
4.1 Data to Be Supplied by the
Manufacturer………………………….. 6
4.2 Materials…………………………………… 6
4.3 General Design………………………….. 9
4.4 Detailed Design……………………….. 10
4.5 Fabrication………………………………. 18
5 Verification
5.1 Testing……………………………………. 19
5.2 Plant Inspection and Rejection……. 20
6 Delivery
6.1 Marking………………………………….. 21
6.2 Preparation for Shipment…………… 21
6.3 Affidavit of Compliance…………….. 21
Appendix ANSI AWWA C515 09
A Installation, Operation, and
Maintenance of Reduced-Wall,
Resilient-Seated Gate Valves
A.1 General…………………………………… 23
A.2 Unloading……………………………….. 23
A.3 Receiving Inspection…………………. 23
A.4 Storage……………………………………. 24
A.5 Installation………………………………. 24
A.6 Maintenance……………………………. 27
A.7 Repairs……………………………………. 28
Tables ANSI AWWA C515 09
1 Design Torque …………………………… 9
2 Minimum Thickness of Body and
Bonnet…………………………………. 11
3 Excess Flange Thickness…………….. 11
4 Minimum Thickness for Ductile-Iron
Connecting End Flanges…………. 11

5 Stem, Gate, Thrust Collar, and Stem
Nut Copper Alloys…………………. 13
6 Stainless-Steel Valve Stem Alloys….. 14
7 Minimum Diameter of Stem and
Minimum Number of Turns to
Open……………………………………. 15
8 Diameter of Handwheels……………. 17
9 Gear Ratios……………………………… 19
10 Proof of Design Torque……………… 20

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