This standard describes only iron-body unassisted swing-check valves, 2-in. through 48-in. (50-mm through 1,200-mm) NPS, with mechanical-joint or flanged ends that are installed in approximately level settings in water systems.

This standard describes the double check-valve backflow prevention assembly for potable water applications. The assembly shall be capable of withstanding a working water pressure of at least 150 psi (1,034 kPa) without damage to working parts or impairment of function and for operation on hot or cold potable water lines.

This standard describes the reduced-pressure principle backflow prevention assembly for potable water applications. The assembly shall be capable of withstanding a working water pressure of at least 150 psi (1,034 kPa) without damage to working parts or impairment of function and for operation on hot- or cold-water lines.

This standard describes 1/2-in. (13mm) through 6-in. (150mm) air-release valves and 1/2-in. (13-mm) through 20-in. (500-mm) air/vacuum and combination air valves having gray cast-iron or ductile-iron bodies and covers.

This standard describes resilient-seated cast-iron eccentric plug valves, 3 in. (75mm) through 72 in. (1,800 mm) in diameter, with flanged, grooved, or mechanical-joint ends.

This standard establishes minimum requirements for double-disc swingcheck valves, 2-in. (50-mm) through 48-in. (1,200-mm) NPS, with various body and end types for raw, potable, and reclaimed water having a pH range from 6 to 12 and a temperature range of 33-125°F (0.6-52°C). Body types. Valves described in this standard are provided with wafer or threaded-lug ends for installation between ANSI Class 125 flanges or grooved ends for use with IPS pressure pipe. Gray-iron pressure ratings. The minimum design working water pressure for gray-iron valves shall be 200 psig (1,380 kPa) for 2-in. through 12-in. (50-mm through 300-mm) NPS inclusive and 150 psig (1,030 kPa) for 14-in. through 48-in. (350-mm through 1,200-mm) NPS inclusive. Ductile-iron pressure ratings. The minimum design working water pressure for ductile-iron valves shall be 250 psig (1,720 kPa) for 2-in. through 48-in. (50-mm through 1,200-mm) NPS inclusions. Fluid velocity rating. The maximum fluid velocity shall be 16 ft/s (4.9 m/s). Installations. Double-disc swing-check valves are designed for installation in horizontal pipelines and in vertical lines with flow in the upward direction. Valves must be installed with hinge pins in the vertical position for horizontal pipeline installations. Excepted conditions. Conditions of water hammer, hydraulic pulsation, and excessive noise are beyond the scope of this standard and require special design and construction consideration. Major changes made to the standard in this revision include the following: the title of the standard was revised to Double-Disc Swing-Check Valves for Waterworks Service, 2-in. Through 48-in. (50-mm Through 1,200-mm) NPS, an advisory statement was added in the Foreword (Sec. II.C) regarding chlorine and chloramine degradation of elastomers, permeation (previously Sec. 4.1) was moved to an advisory statement in the Foreword (Sec. II.D), revised the ASTM A536 material requirements. added aluminum bronze as an optional pin material, and

The purpose of this standard is to provide the minimum requirements for ductile-iron, steel, and alloy high-performance butterfly valves suitable for raw, potable, and reclaim/reuse water service.

The purpose of this standard is to provide minimum requirements for stainless steel and ductile-iron body knife gate valves with resilient and metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems, including materials, design, testing, rejection, marking, and shipping.

This standard describes plastic ball valves for water supply service. This standard covers threaded, union, fusion, or compression ended double- and single-seated nonmetallic ball valves for pressures 100 psi (689 kPa) and higher in sizes from 1/2-in. through 2-in. (13-mm through 50-mm) diameter for use in potable water systems with temperatures greater than 32°F (0°C) and less than 125°F (52°C). The performance of products depends on proper installation. The purchaser must follow instructions supplied by or available from the manufacturer. If these instructions are not available, acceptable installation practices should be followed. This standard is the first edition.

This standard describes hydraulic and pneumatic cylinder and vane-type actuators for operation of valve and slide gates in utility systems.

This standard describes electric motor actuators that are externally mounted on gate, ball, plug, cone, globe, and butterfly valves and on slide gates suitable for use in water, wastewater, and reclaimed water facilities.

This standard decribes the special protective interior coatings for valves and hydrants used for water supply service.

The purpose of this standard is to provide the minimum requirements for the installation of buried steel water pipelines, including inspection, unloading, handling, storage, and testing.

This standard describes the requirements for materials, equipment, certification, and procedures for the field application of spray-in-place polymeric (SIPP) linings to the interior of existing potable water pipelines. The water pipelines to be renewed may be constructed of pipe materials such as steel, ductile iron, cast iron, asbestos cement, and concrete. Related work required for performing a complete contract is also generally described. The standard covers all polymeric materials used in spray-in-place applications including epoxies, polyurethanes, polyureas, and hybrids of these compounds. This standard can be referenced in documents for the purchase of SIPP lining of pipelines for water supply service. The requirements of this standard apply when this document has been referenced and then only to SIPP lining of potable water pipelines.