Описание: Describes hydraulic and pneumatic linear and quarter-turn actuators for operation of valves and slide gates in utility systems. The standard defines the minimum requirements for hydraulic and pneumatic actuators, such as sizing considerations, general design, materials, applications, painting and coatings, and data to be furnished by manufacturer.
Описание: Describes resilient-seated cast-iron eccentric plug valves, 3 in. (75 mm) through 72 in. (1,800 mm) in diameter, with flanged, grooved, or mechanical-joint ends, for water, wastewater, and reclaimed water systems having a pH range from 6 to 12 and a temperature range from 33F to 125F.
Описание: 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 1/2 in. (12.5 mm) through 2 in. (50.8 mm).
Описание: The purpose of this standard is to provide the minimum requirements for large-diameter flanged rubber-seated butterfly valve assemblies, suitable for freshwater and reclaimed water service. The standard can be referenced in contract documents for large-diameter rubber-seated butterfly valves, which are described by the scope as defined above.
Описание: From the mysterious manatee to the majestic Siberian tiger, some of the largest animals in the world are certainly a sight to behold! This Animal Giants super deluxe calendar for 2021 is filled with a fantastic collection of photography from the National Geographic archive. With stunning large images and a date reference each month, this calendar is sure to bring life to any space. Sold in support of the National Geographic Society.
Название: AWWA C561-21 Fabricated Stainless-Steel Slide Gates ISBN: 164717063X ISBN-13(EAN): 9781647170639 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 17048.00 р. Наличие на складе: Нет в наличии.
Описание: Describes vertically mounted, fabricated stainless-steel slide gates with full-aperture closure, designed for either seating head or unseating head or both, in ordinary water supply and wastewater service.
Название: AWWA C560-21 Cast-Iron Slide Gates ISBN: 1647170621 ISBN-13(EAN): 9781647170622 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 14692.00 р. Наличие на складе: Нет в наличии.
Описание: Describes vertically mounted, cast-iron slide gates with full aperture closing, designed for either seating head, unseating head, or both, in ordinary water supply and wastewater service. The standard can be referenced for purchasing and receiving cast-iron slide gates and can also be used as a guide for design and manufacture.
Название: AWWA C562-21 Fabricated Aluminum Slide Gates ISBN: 1647170648 ISBN-13(EAN): 9781647170646 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 14692.00 р. Наличие на складе: Нет в наличии.
Описание: Describes vertically mounted, fabricated aluminum slide gates with full-aperture closure, designed for either seating head or unseating head or both, in ordinary water supply and wastewater service. The standard also describes manual gate actuator mechanisms together with standard accessories.
Название: AWWA C563-21 Fabricated Composite Slide Gates ISBN: 1647170656 ISBN-13(EAN): 9781647170653 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 17048.00 р. Наличие на складе: Нет в наличии.
Описание: Describes vertically mounted, fabricated, composite, resilient-seated slide gates with full-aperture closure, designed for either seating head or unseating head or both, in ordinary water supply and wastewater service. The standard also describes manual gate actuator mechanisms together with standard accessories.
Описание: 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.
Описание: 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.
Описание: The effects of air and vacuum pockets present in a liquid piping system can negatively impact not only pump, meter, and control valve operation but can also be responsible for pipeline breaks and collapses. Choosing and installing the correct air valve is critical to all liquid piping systems. This manual of practice provides essential information for selecting, sizing, locating, and installing air valves in water, wastewater and reclaimed water pipeline systems. This revised second edition includes information pertaining to wastewater applications including scouring velocities for larger piping systems, and information on an inflow preventer device installed to protect from malicious tampering, freeze and flood, and to prevent the entry of contaminated water into the potable water distribution system. Operators, technicians, and engineers will use this manual to understand the design, use, application and maintenance of air valves. The air valve types listed in both ANSI/AWWA Standard C512, Air Release Valves, Air/Vacuum, and Combination Air Valves for Water and Wastewater Service and ANSI/AWWA C514, Air Valve and Vent Inflow Preventer Assemblies for Potable Water Distribution System and Storage Facilities are covered. Chapter topics include: locating air valves along a pipeline; design of valve orifice size; water hammer effects; and installation, operation, maintenance, and safety.
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