Download e-book for kindle: Air-Release, Air/Vacuum & Combination Air Valves by American Water Works Association

By American Water Works Association

ISBN-10: 1583211527

ISBN-13: 9781583211526

This guide courses operators within the choice, set up, and upkeep of air valves in ingesting water provide purposes. insurance contains air valve kinds, valve position, valve orifice sizing, water hammer, install, operation, protection, and upkeep.

Show description

Read Online or Download Air-Release, Air/Vacuum & Combination Air Valves PDF

Similar water quality & treatment books

Download e-book for iPad: Engineering Nature: Water, Development, and the Global by Jessica B. Teisch

Targeting globalization within the past due 19th and early 20th centuries, Jessica Teisch examines the approaches wherein American water and mining engineers who rose to prominence in the course of and after the California Gold Rush of 1849 exported the USA' starting to be technical and environmental wisdom and linked social and political associations.

Download e-book for iPad: Membrane Technology and Engineering for Water Purification, by Rajindar Singh

Membrane know-how and Engineering for Water Purification, 2d variation is written in a realistic kind with emphasis on: strategy description; key unit operations; structures layout and prices; plant gear description; apparatus install; protection and upkeep; approach keep an eye on; plant start-up; and operation and troubleshooting.

Fundamentals of water finance - download pdf or read online

This booklet addresses how you can give you the best quality water prone on the lowest attainable price, and examines the key finance concerns that process managers face. It bargains with can provide, loans, municipal bonds, tariffs/rates and subsidies, in addition to the most important govt finance courses provided by way of the dept of Agriculture and the EPA.

Extra resources for Air-Release, Air/Vacuum & Combination Air Valves

Example text

Edmunds, Robert C. 1979. Air Binding in Pipes, Journal AWWA, May, 1979. Flow of Fluids. 1982. Technical Paper No. 410, Crane. Giles, Ranald V. Fluid Mechanics and Hydraulics, (2nd edition) McGraw Hill, New York. Karassik, Igor J. et al. 1986. Pump Handbook, 2nd edition. McGraw Hill, New York. 33 Copyright (C) 2001 American Water Works Association All Rights Reserved INDEX Note: f. indicates figure; t. indicates table. Index Terms Links A Air entry into pipelines 2 in water 1 Air pockets 1 Air valves 1 See also Air-release valves, Air/ vacuum valves, Combination air valves aboveground 28 belowground 28 bolting material 28 and contamination 30 continuously operating 30 and decreased upslope 9 and deep-well pumps 9 depth of burial 30 and filling and draining pipelines 30 and flooding 30 and freezing 30 at high points 8 19 8f.

6 m) of clearance around and above the air valve for maintenance and valve removal. Screened Vents -T U Air-Release Precast Manhole ____ \ AirNacuum Valve Pipeline Connection \ Drain % Figure 6-2 Vault installation of a combination air valve Copyright (C) 2001 American Water Works Association All Rights Reserved 30 AIR-RELEASE, AIFUVACUUM, AND COMBINATION AIR VALVES Flooding Flooding submerges the air intake of air valves, prevents the proper operation of the valve, and may introduce contamination into the pipeline.

Where combination air valves are used, those in a single body are less likely to freeze than those in separate bodies. Freezing Suitable insulation and electrical heat tape should be provided in areas prone to freezing. Frozen air valves will not operate and can be damaged. Thermally activated relief valves (typically supplied in 3/8 or '/2 in. 19 mm or 13 mml diameter) can be installed on the valve body t o release water and reduce the possibility of damage from freezing. The relief valve automatically opens when the water temperature in the valve falls below a set point (typically 35°F [ Z O C l ) and recloses at higher temperatures.

Download PDF sample

Air-Release, Air/Vacuum & Combination Air Valves by American Water Works Association


by Robert
4.0

Rated 4.00 of 5 – based on 6 votes