At Don Johns, we take pride in being creative problem solvers for your unique applications. With our extensive experience, we have tackled numerous challenges to ensure our customers achieve the results they desire. Today, we’d like to showcase a specific project we undertook for a client seeking a custom solution and share the resolution we …
Don John Solutions: Portable Air-Operated Pump Cart Read Full Article »
When discussing wastewater treatment systems, most are well-acquainted with their use in municipal settings. However, it’s important to recognize that various industries like chemical manufacturing, electric power, food processing, iron and steel manufacturing, automotive, and more. Many of these industries, during their production processes, generate undesirable byproducts that can find their way into the freshwater …
Introduction Tunnel ventilation dampers are crucial in enclosed tunnels, parking areas, and transit systems with long tunnels. They help maintain clean air and proper temperatures by enhancing natural airflow from moving trains. These dampers also have a vital role during emergencies, like fires. In this Application Bulletin, we will go over how the dampers work …
Application Bulletin: Spring Return Actuators for Tunnel Ventilation System Read Full Article »
When it comes to handling a conductive liquid such as asphalt sealer, you require a system that offers both reliability and accuracy in its dispensing or measuring capabilities. While a mechanical meter could be utilized for this specific purpose, it is strongly advised to opt for a magnetic flowmeter system. This system presents several advantages …
Introduction Maintaining a plant or system can be a challenging endeavor, demanding careful choices to ensure efficient and successful operations. To assist in making well-informed decisions, we are excited to introduce our new series, “Application Bulletins.” Through these bulletins, we delve deep into various industry applications and explore the equipment best suited for them. In …
Application Bulletin: Automatic Batch Control Solutions Read Full Article »
Water and sewer sources are usually held by municipalities with billing for both fresh water and discharge to sewer. The sewer charge is normally a similar or exact billing on the assumption that the water once used is returned to the sewer for treatment before release into streams. With no measurement of the actual effluent, …
Any traditional centrifugal pump or positive displacement pump when transferring fluids with high pressure, low flow, and low viscosity while handling entrained vapors or fluids near their boiling point. These conditions generally hinder the performance and reliability of most pumps, causing cavitation and pulsation. However, there is a solution to this problem thanks to the …
Purchasing a new pump without a clear understanding of the necessary specifications can result in costly errors for both you and your company. To ensure that you make an informed decision and obtain the right pump, we have compiled a list of five essential factors to consider before purchasing a pump, in order to provide …
The Easy Way to Manage Your liquid Assets The UniBatch offers a highly accurate and economical liquid batching system that is unprecedented for its command over liquid measurement and batch volume to within 2% accuracy. As versatile as it is accurate, the UniBatch can be used for water, chemicals, and many slightly aggressive, solid free …
Equipment Overview Besides the Control Panel, the skid-based system consists of two sets of control equipment and metering equipment to provide redundancy for the system – each set consists of a Neptune Red Seal meter with pulser, a mixing chamber and 3 Burkert control valves, one each for the incoming Hot Water, City Water and …
Application Bulletin – Don Johns Water Tempering and Batching System Read Full Article »