Case Studies

Colombian Hydroelectric Plant Solves Flooding Problems

The Colombian State of Antioquia creates much of its clean power from hydroelectric plants along the Guadalupe River. In the case of the Guadalupe IV hydroelectric plant, the risk of flooding required that a suitable solution be provided to ensure that the ejector pumps would work regardless of power or pressure differentials.

Case Studies

Kansas Facility Finds Quick, Reliable Fix to Cavitation Damage

The Hutchinson, Kan., water plant gets its water from 20 wells. The water is pumped out of the wells and into a reverse osmosis (RO) water treatment center to purify and ensure safe drinking water. At that point, a portion of the water is taken off from the main line, run through the RO system and then mixed back with the well water. This is used to lower the total dissolved solids in the water. The plant can handle 10 million gallons per day (mgd) and provides water to 41,000 residents and businesses.


10 Red Flags in Valve Chambers That Should Make You Question What Else Is Wrong

With the fast-moving pace of technology and innovation, valuable information that should be passed on is often glossed over. While shortcuts or quick ways to get by can reflect well on short-term budgets, they show a lack of experience and overall understanding of what makes a system viable for the long haul.

As I travel for my job, the sites and valve stations I visit always intrigue me. They either impress me with their engineering brilliance or cause me to shake my head and wonder how they were ever approved, let alone built.

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Mueller Water Products Acquires Singer Valve

Mueller Water Products Inc. announced that it has signed a definitive agreement to acquire Singer Valve, a manufacturer of automatic control valves, for $34 million in cash.

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New Engineers Join Singer Valve

Singer Valve Inc. added two new members to its Engineering Department. Justin Arseneault joined as instrumentation and automation engineer, and Marc Li joined as applications engineer.

With the growing need for automation and innovative design in the water industry, Arseneault and Li are meeting the demand at Singer. Together they bring the latest in design and technology so that Singer can continue to push the boundaries in control valve innovation. 

Case Studies

Controlling Conditions Down Under

The North South Interconnection System Project (NSISP) is one of South Australian (SA) Water Corp.’s biggest infrastructure projects in the Adelaide metropolitan area. SA Water built the $403 million project to connect the north and south drinking water distribution systems and to increase access to a desalination plant. The project included the construction of 32 km of pipeline through metropolitan main roads and suburban inner streets.


Case Studies

Managing Flows for the Fish

The Bull Run watershed has continuously provided water to the Portland, Ore., metropolitan area since 1895. It also plays an important role in supporting the larger aquatic ecosystem of the Sandy and Lower Columbia rivers, where some fish species have been in significant decline.

Case Studies

Maintaining a Consistent Level

Johor is Malaysia’s third-largest state and one of the most developed regions of the country. SAJ Holdings is a water utility company based in the state capital of Johor Bahru. It is responsible for Johor’s water supply system, including water treatment and potable water distribution. To service a population of more than 2.7 million, the company must ensure that the state’s water infrastructure is reliable and effective.

The problem

But, like with most water systems, problems arise. Problems such as overflowing water reservoirs.

Case Studies

A Common Good

The Millcreek Township Water Authority (MTWA) of Millcreek Township, Pa.—near Erie, Pa.—was created in 1974 to provide water to the rapidly growing Millcreek Township customer base. The MTWA purchased several small water systems, which have been upgraded and grown to 112 miles of pipeline ranging in size from 2 to 24 in., with ten pump stations to maintain water pressure, five water towers for storing a total of 5 million gal and one groundwater well. The water distribution system has elevation changes of about 400 ft and an average daily flow of approximately 2.5 mgd.

Case Studies

Taking Off the Pressure

Malang lies 900 km east of Jakarta on Java in Indonesia. In 2011, the city was supplying water to roughly 120,000 service connections—roughly 600,000 people, which accounted for about 70% of the city’s population. Approximately 30% of the supply to the customers is gravity-fed directly from springs to the users, while the other 70% of the supply is pumped to eight storage reservoirs with a total maximum storage capacity of 18,000 cu m.

The problem


Singer Valve Appoints Head of Instrumentation and Automation

Singer Valve has announced the appointment of Ryan Spooner as manager of instrumentation and automation.

“Ryan’s expertise in mechatronics, coupled with his proven record at Singer Valve to solve and create complex automation solutions for our customers, makes him a natural fit to head up our instrumentation and automation department,” said Andrew Taylor, president of Singer Valve.

Spooner will focus on increasing his team’s capabilities so that more customers have access to the electronic automation solutions that Singer has to offer.

Case Studies

Containing Cavitation

The reservoir filling station at Pittsfield Township, Mich., provides water to about 39,000 people, with needs that vary from industrial and commercial to urban and rural. Their average daily water usage is 3.5 mgd, which increases up to 7.0 mgd during summer days.

The Challenge


Singer Valve Introduces Automated Pilot Control

Singer Valve has launched the 420-DC or 420-AC Automated Pilot Control. “In this new model, we have added over-volt protection, 4-20mA feedback, O-ring sealed, explosion-proof housing with new certification and a more modular design so repair can be done on specific parts that need it,” said Mark Gimson, business development and marketing manager for Singer Valve. In addition, Singer has doubled the torque on the unit’s motors, so the actuator’s operational life is significantly increased.

Case Studies

Omani City Contends with Water Storage Challenge

Salalah is a coastal city in Oman, about 1,500 km south of Dubai. Although the beautiful city has an average population of 200,000, tourists flock there for its temperate summer climate. The city receives its water from a desalination plant that has the capacity to process 30 million gpd. This water then goes through a 105 km transmission line with DN 1200, DN 700 and DN 600 DI pipes into respective reservoirs that supply water to the residents as needed.

Addressing the issue

Case Studies

Slimming Down

Yarra Valley Water (YVW) is the largest of Melbourne’s three water corporations, providing water supply and sewerage services to more than 1.7 million people and more than 50,000 businesses in the northern and eastern suburbs of Melbourne. The district covers approximately 4,000 sq km, from as far north as Wallan and extending to Warburton in the east. It maintains more than 9,000 km of water mains and nearly 9,000 km of sewer mains. 


Singer Valve Product Wins Innovation Award

Singer Valve, a manufacturer of control valves, has received an innovation award from an industry publication for the new SPI-MV—the first single-point insertion electromagnetic flowmeter installed and calibrated with a control valve. The SPI-MV can be used with a Singer metering valve as a standalone option or built into a 106-2SC-PCO pilot system to provide complete flow-based valve control. The award’s winners were determined by reader votes.


Singer Valve Opens Manufacturing Plant in China

Singer Valve hosted a grand opening of a manufacturing plant in Taicang, China, complete with ceremony, plant tour and traditional Chinese banquet for close to 100 people.

Li Jun, general manager for China said, “It was a wonderful opportunity to showcase the facility, meet with new agents and recognize the many individuals and organizations that made this new facility possible.”

Case Studies

Surge Anticipator Eliminates Pipe Breakage in Central Saanich, BC

The District of Central Saanich is a member municipality of the Capital Regional District (CRD) of Greater Victoria in British Columbia, Canada. The district has a medium-size, widely dispersed sewerage collection system that sends its sewage to a regional wastewater treatment plant. There is minimal storage capacity within the municipal collection system; multiple lift stations pump sewage through force mains into the regional trunk sewer system and from there to treatment.

Case Studies

Specially Designed Valve System Regulates Bangkok Pressure

Bangkok’s Metropolitan Water Authority (MWA) services 8 million people and is focusing on improving pressure management in an effort to reduce serious water losses. With water loss up to 30%, the water authority installed pressure-reducing valves throughout Bangkok and its suburbs. The valves accurately controlled nighttime pressures, preventing leaks and breaks. However, in some areas, high demand during the day caused pressure to drop to 10 psi (0.68 bar) or less.

Case Studies

Clean and Quiet

Without the right solution, aging water pipes, overflowing tanks and noisy valves can become chronic issues for a water retailer’s supply infrastructure. Imagine the maintenance demands and repair costs, not to mention the risk of an unpredictable water supply.