AWWA C530 2022

$76.92

AWWA C530-22 Pilot-Operated Control Valves

Published By	Publication Date	Number of Pages
AWWA	2022	44

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Category: AWWA

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Description

The purpose of this standard is to define the minimum requirements for pilot-operated control valves, including sizing considerations, design verification, testing, delivery, handling, and storage.

PDF Catalog

PDF Pages	PDF Title
7	Foreword I. Introduction. I.A. Background. Pilot-operated control valves have been in use since the early 1900s in pipelines that carry liquids. Manufacturers of pilot-operated control valves have developed tight-closing rubber-seated and metal-seated products for pipeline use in I.B. History. The need for a standard addressing pilot-operated control valves was recognized by the American Water Works Association (AWWA) in November 2001. A committee was appointed for the task of standardization; at the first inaugural meeting in Jun I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct
9	II. Special Issues. Conditions under which the pilot-operated control valve is to be operated must be evaluated carefully by the purchaser. This evaluation must include determination of the hydraulic characteristics of the system in which the valve will b II.A. Chlorine and Chloramine Degradation of Elastomers. The selection of materials is critical for water service and distribution piping in locations where there is a possibility that elastomers will be in contact with chlorine or chloramines. Documented III. Use of This Standard. It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. III.A. Purchaser Options and Alternatives. The following information should be provided by the purchaser.
11	III.B. Laying Length. Pilot-operated control valves do not have uniform laying lengths. Interchangeability between various manufacturers may not be possible without modification to the existing piping system. The purchaser is cautioned to obtain this info III.C. Performance Test. This standard does not require the manufacturer to conduct the performance test on a fully assembled valve. Sec. 5.2 allows the manufacturer to conduct the tests separately on the main valve and the related pilots. If the purchase III.D. Valve Test Media. The purchaser should review Sec. 5.2.1 of this standard and inform the supplier of the preferred valve test media. The standard allows factory testing of valves with air or water. III.E. Modification to Standard. Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. IV. Major Revisions. Major changes made to the standard in this revision include the following: V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at [email protected].
13	AWWA Standard SECTION 1: GENERAL Sec. 1.1 Scope
14	Sec. 1.2 Purpose Sec. 1.3 Application SECTION 2: REFERENCES
16	SECTION 3: DEFINITIONS
18	SECTION 4: REQUIREMENTS Sec. 4.1 Data Provided by Manufacturer Sec. 4.2 Materials
19	Sec. 4.3 General Design
23	Sec. 4.4 Workmanship and Painting
24	Sec. 4.5 Permeation SECTION 5: VERIFICATION Sec. 5.1 Inspection Sec. 5.2 Testing
25	Sec. 5.3 Notice of Nonconformance SECTION 6: DELIVERY Sec. 6.1 Markings
26	Sec. 6.2 Shipping Sec. 6.3 Affidavit of Compliance SECTION 7: SIZING AND APPLICATION Sec. 7.1 Valve Basics
28	Sec. 7.2 Control Functions
29	Sec. 7.3 Pressure-Reducing Function
31	Sec. 7.4 Pressure-Relief/Sustaining Function
33	Sec. 7.5 Solenoid Control Function Sec. 7.6 Pump Control Function
36	Sec. 7.7 Altitude Control Function
37	Sec. 7.8 Rate-of-Flow Control Function
39	Appendix A Installation, Operation, and Maintenance Pilot-Operated Control Valves