Ontario Pipeline - Fall 2013 - (Page 35)

FEATURE | EQUIPMENT DEMYSTIFYING PREFABRICATED VALVE CHAMBERS BY PETER SUCHARDA Manager, Devine and Associates P re-fabricated, factory-built water distribution stations have been installed and used throughout the continental United States for 50 years. Each station is customized to suit its application and can be designed for in-ground or on-ground installation. The use of pre-fabricated water distribution in Canada is new but expanding as the benefits are becoming more widely known. These benefits include: (i) Price – Comparable stations are typically less expensive to produce when built in a factory rather than on-site. (ii) Time-to-completion – Fabrication and logistics are greatly simplified and time schedules are therefore compressed when using factory-built stations. (iii) Quality –Within the factory, standardized procedures, closer supervision, continuous quality control and a higher level of operator training and task specialization promote higher quality. (iv) System Responsibility – The station manufacturer is responsible for all aspects of the station performance and warranty including all pumps, valves, instrumentation, component compatibility, system integration, harmonics and other factors. (v) Experience – An on-site mechanical contractor might produce just a few stations in a year’s time while infactory producers design and build hundreds of stations a year dealing with a wider range of applications and operating conditions. Initial Project Discussions and Design Factory-built station manufacturers, working through agents, serve municipalities and their consultants with specialized expertise. During the preliminary design phases of a project, the manufacturer can offer design assistance and cost estimates based on stations they have built for similar applications. For planning purposes, this assistance is very helpful. For example, drawings of a similar, previously built station can be used to estimate the footprint and overall size of a proposed station. As the project proceeds, these preliminary station designs can serve as an excellent starting point. The design process is iterative. The process starts with the end-user/consultant requesting modifications to the preliminary design with the manufacturer then making the design changes and sending the result back for review/ feedback. It is important to note that the station can be tendered to be supplied either factory-built or build-on-site, with Exterior and interior of EFI Booster pumping station in Kleinburg, Region of York. O N T A R I O P I P E L I N E | FALL 2013 | 35

Table of Contents for the Digital Edition of Ontario Pipeline - Fall 2013

From the Publications Chair
The OWWA Report
The OMWA Report
The OWWEA Report
From Our AWWA Director
Using Social Media to Enhance Water Effi ciency, Public Education and Outreach
Engaging Residents through Social Media
WaterISAC – An Essential Part of Your Water or Wastewater Utility’s Security and Emergency Preparedness Toolbox
Committee Reports
Alliance for Water Effi ciency Helps Municipalities Develop Effective Water Conservation Programs
Don’t Flush … Your Drugs! Keep Our Source Waters Clean
Water Bytes
Water Testing in the Field – Guatemala
Demystifying Prefabricated Valve Chambers
Ask the Board
Certifi cation Corner
Welcome New Members
Calendar of Events
OWWEA Member Listing
Index of Advertisers | Ad.com

Ontario Pipeline - Fall 2013