When most people think of satellites, they think about the exploration of outer space, distant planets, satellite internet or even cellphones. But many satellites—the Union of Concerned Scientists estimates there are 1,738 active satellites orbiting the Earth—are pointed back at our planet, often to research weather and ocean patterns, ...Read more
The FloodSafe® Inflow Preventer is a revolutionary system that works with air valves and provides unrivaled protection of potable water systems from contamination. Watch our video to learn more about the FloodSafe®. ...Read more
Since the 1990s, two types of epoxy coatings have been commonly specified and used for iron valves in the waterworks industry: fusion-bonded epoxy and liquid epoxy. Both coatings are based on thermo-set epoxy systems with similar corrosion resistance and are ...Read more
Check out Val-Matic’s Air Today, Gone Tomorrow video on their YouTube page. The useful video demonstrates the importance of using Air Valves in water and wastewater pipelines. The presence of air in pipelines often raises many questions for Engineers and Operators, many of which have never been answered. Many problems in pipelines are caused by a failure to deaerate the line. Deaerating the pipeline will safeguard these from various air related problems. The video determines how Val-Matic’s Air Release Valve, Air/Vacuum Valve and Combination Air Valve solve such problems. ...Read more
A working environment for valve testing is similar to the saying, “A picture is worth a 1000 words.” Val-Matic was fortunate to test four of their 2-inch 802A combination air valves, each with different coatings on a trial installation at the Salt Creek Sanitary District Water and Wastewater Treatment Plant in Villa Park, IL. ...Read more
It’s not often that you run into a valve problem on the 17th hole of the Blue Monster at Doral. But that’s what happened one day around dusk when Jim Wickman and yours truly were trying to squeeze in 18 holes before dark. (Jim and I ran an engineering consulting firm many years ago. He’s still at it but I am more of the ...Read more
It’s hard to believe but it’s already time for us to look ahead to 2018. This past year was an interesting year for water: we saw an uptick in mergers and acquisitions (M&A), more fallout from Flint, a focus on smarter water technologies, lack of government investment in water, and an increasing number of weather events impacting on water infrastructure. ...Read more
Hurricane Harvey produced widespread flooding in Houston putting the safety of the City’s drinking water system in serious jeopardy. It can happen anywhere. Drinking water pipelines are equipped with air valves that function to to vent and admit air as the pipelines are filled and drained. Air valves are critical to the safe and efficient operation of water systems.
But during severe flooding, contaminated flood water can be drawn into the distribution system during normal system operation. One solution for mitigating this risk is to install inflow preventers on the outlet of the air valves. An inflow preventer is a cross connection device mounted on the outlet of an air valve or vent pipe to allow normal flow of air in and out of the water system but prevent the inflow of contaminated water into a system as a result of flooding or malicious tampering. For more information on these AWWA C514 devices, read the white paper, “Protecting Drinking Water Pipelines with Inflow Prevention”. ...
As told by the legendary Duke Waters....It was late on Friday, almos t 4:30, when I got the call. With Miller Time on my mind, I picked up the receiver, and strained to hear Jim Wickman tell me about his latest woe. Jim and I go way back. Jim was Project Engineer on water projects up and down the coast for Watson, Price & Woods Engineers during the 60's and 70 's. Back when a deal was a deal and a full days work was 12 hours. My job was to bail Jim out when he started up projects and created sparks and steam. Yep, we go way back. ...Read more
Val-Matic Valve & Mfg. Corp.’s Air Valve Quick Sizing Calculator is a handy pocket tool to assist in the correct sizing of air valves for use on water pipelines, sewage force mains, pumping stations, treatment plants, booster stations and industrial process water and waste water systems. This calculator greatly reduces the amount of time necessary to size valves. ...Read more
The presence of air in a pipeline and it's impact on operations is probably one of the most misunderstood phenomena in our industry today. Many operational problems are blamed on inadequate thrust blocking, improper pipeline bedding, etc. These problems include broken pumps, valves and pipe, as well as faulty instrumentation readings. In reality, many of these problems are not caused by improper installation of the line, but by failure to de-aerate the line. It has been said that if a pipeline is properly de-aerated, you can't guarantee against a line break. However, if you don't properly de-aerate a pipeline, you should be prepared for one. ...Read more
There are as many types of valve coatings as there are types of valves, but in the waterworks industry, the current standard is epoxy coating. Epoxy coatings are highly corrosion and wear resistant and adhere to cast iron surfaces with adhesion strengths of 3000 psig or more and often serve as the seating surface for resilient seated valves. Epoxy coatings are certified for use in drinking water systems and have proven to be a reliable coating for over forty years. The coatings prevent corrosion, tuberculation, and wear in valves and promote efficient flow of fluids through piping systems. For more information, read the white paper, "Protective Interior Coatings for Waterworks Valves”. ...Read more
Operating a large waterworks butterfly valve at the Lithia Water Treatment Plant in Tampa Florida is no easy task. A 48-inch diameter butterfly valve like the one shown requires about ten-thousand foot-pounds of torque, which requires the use of a gear actuator and handwheel. Gear actuators come in two varieties, worm gears and traveling-nut. The traveling-nut actuator with externally adjustable stops was specifically designed for use with butterfly valves and offers some distinct advantages. ...Read more
Valves can be found just about anywhere today: in our homes, under the street, in commercial buildings and in thousands of places within power and water plants, paper mills, refineries, chemical plants and other industrial and infrastructure facilities. The valve industry is truly broad-shouldered, with segments varying from ...Read more
Pigging refers to the practice of using devices known as "pigs" to perform various maintenance operations such as cleaning and inspecting on a pipeline which is done without stopping the flow of the product in the pipeline. This is accomplished by inserting the pig into a ...Read more
This Halloween season, we thought we would share some of the spookiest water operator videos and news stories we have come across, all with one thing in common: they really happened! (Because we all know that truth is scarier than fiction.) ...
In the WWEMA Corner of the July 2017 Issue of WaterWorld, Don Schwerin talks about the differences between Buy American, AIS, ARRA and more. ...Read more
Val-Matic's John V. Ballun and John R. Holstrom answer the Question of the Month - What Are Key Factors to Consider When Installing Large Butterfly Valves Belowground? ...Read more
Imagine: No water to drink, or even to make coffee with. No water to shower, flush the toilet, or do laundry. Hospitals would close without water. Firefighters couldn't put out fires and farmers couldn't water their crops. ...
Located in northwestern Ohio, the City of Findlay is the epicenter of Hancock County. Built in 1931, the Findlay Water Treatment Plant (WTP) was upgraded in 1965 and again in 1984. The Findlay WTP serves the 40,000 residents of the greater Findlay area and supplies an average of six million gallons of potable water per day and approximately 22,000 MG annually. ...Read more
Floodwater, particularly when widespread from natural disasters as experienced with Hurricane Harvey and Irma, most likely contains various organic and inorganic contaminants that may detrimentally affect human health and performance of waterworks products. These contaminants may be absorbed by product components such as elastomer seals and coatings. ...Read more
The answer is now YES! Since recently achieving the WRAS Material Approval for the EPDM compound used in the Val-Matic Swing-Flex® Resilient Hinge Check Valve, there is now the option for producing an eccentric plug valve with BS 6920 compliant wetted parts. ...
Although geothermal energy generation is a growing renewable resource, it still presents challenges for equipment suppliers in controlling the often harsh geothermal fluids. A geothermal plant can use direct steam, hot water, or a mixture of steam and water but in all cases, the fluids can contain ...Read more
Drinking water supplies in the United States are among the safest in the world. However, even in the U.S., drinking water sources can become contaminated, causing sickness and disease from waterborne germs, such as Cryptosporidium, E. coli, Hepatitis A, Giardia intestinalis, and other pathogens. ...Read more
Pumps must overcome the combination of the static head and the friction head of piping systems. The friction head is caused by roughness in the pipe and local flow disturbances such as fittings and valves. Valves come in many varieties, but they all create some friction head ...
Water pumping systems that include a full-port ball valve for control save a significant amount of electrical energy given the negligible head loss of the ball valve. Also, when equipped with a smart control system, the pumping system is automatically protected from adverse operating conditions. ...Read more
Butterfly and ball valves are typically supplied with either a traveling nut or worm gear type actuator. Both types are listed in the applicable AWWA Valve Standards, C504 and C507. Each type has some important characteristics that affect the performance of the valve assembly...Read more
Given the scarcity of freshwater in drought-stricken areas, water reuse projects are essential. Equipping a wastewater plant with a non-potable or reclaimed water reuse system reduces water demand, provides revenue for the water utility and reduces the costs of the outfall system. The 900-MW Sandy Creek Energy Station in Riesel, Texas, deploys technology for coal-fueled plants utilizing steam generators and technology designed for sustainability through efficient, low emission systems, processes and components. ...
So just how do we get electricity from water? Actually, hydroelectric and coal-fired power plants produce electricity in a similar way. In both cases a power source is used to turn a propeller-like piece called a turbine, which then turns a metal shaft in an electric generator, ...
Valves are used to control or moderate flow of gases, liquids, and slurries, and contain pressure. For reasons of economy, manufacturers supply them in a limited range of materials. Each of these materials is suitable for a limited range of common exposures and has the benefit of being easily available in a short time frame. ...
Society’s desire for a clean environment shines light on the importance of understanding the essential role wastewater treatment plants have in our communities. Congress passed the Clean Water Act in 1972 to control the discharge of effluent into water systems and waterways, and provided grants to allow municipalities to meet these new requirements. Since then ...