pressure pipe Articles

  • A practical guide for steering clear of pipe disaster

    Call it what you want, but a busted pipe spells nothing but T-R-O-U-B-L-E. Now, the good news: There are several measures you can take now to avoid future pipe catastrophes, locate and eliminate potential break risks and prevent expensive emergency repairs. This easy-to-follow guide offers helpful tips for engineers and water professionals looking to reduce the risk of pipe breaks, save valuable ...


    By Singer Valve Inc.

  • Pioneering Primer from Plastics Pipe Institute

    With administrative offices located in Dallas, Texas, The Plastics Pipe Institute Inc. (PPI) is the major trade association representing all segments of the plastics piping industry. PPI members share a common interest in broadening awareness and creating opportunities that expand market share and extend the use of plastics pipe in all its many applications. As an association, PPI focuses ...


    By TRIC Tools Inc.

  • Leak behaviour in pressurized PVC pipes

    The correct definition of the leak law, i.e. the relationship between the leak outflow, the total head at the leak and other relevant parameters such as the pipe material, can seriously affect the accuracy of the numerical models used for the management of water distribution systems, either if they are used to forecast the leakage reduction by pressure management or to locate and size the leaks ...


    By IWA Publishing

  • Porirua New Zealand – WaStop® DN225 - Case Study

    Porirua City located 20 km north of Wellington has over 70 storm water outlets into the harbour. A number of these outlets are very flat on their approach to the harbour which generally means they are severely influenced by high tides. The problem with these outlets is that if a rain fall event coincides with a high tide, the ability of the storm water network to discharge is severely restricted. ...


    By Wapro AB

  • Alternative water supply and treatment solutions in Durban (SA)

    As a result of persistent drought conditions in South Africa a customer (an international consumer goods producer with a production facility in Durban) experiences the pressure of limited availability of water. The ever dropping dam levels currently result in higher risk for intermittent water supply resulting in unplanned and forced production stops in case no water is available. Aquest Colsen ...


    By Colsen International b.v.

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Intelligent pressure management reduces water losses and minimizes pipe brakes

    Leaks in water pipes and leaking valves in urban water distribution systems and pipeline networks, mainly in developing and threshold countries, are the reason for water losses of up to 50 percent in relation to the water quantity being produced in the water works. The articele of the 'Industrial Valves 2009' presents an effective pressure management on the basis of an intelligent control ...

  • Custom Pressurized Plastic Pipe Disposal Solution - Case Study

    Problem A large petro chemical company asked Waste Control Systems to solve a problem of pressurized plastic pipe after it had been tested for bursting strength. The QA test consisted of taking an eighteen inch section of pipe and welding caps on each end. One cap was solid and the other consisted of a fitting to allow air to be pumped into the section of pipe. A check valve was ...


    By Waste Control Systems Inc

  • Deal With The Pressure - Protect piping system components with Pulsation Dampeners

    Metering pumps with operating pressures of up to 150 psig (pounds per square inch gauge) can create unwanted pressure pulsations within a piping system – a real problem in applications such as filling, mixing and spraying that require a combination of a metering pump’s accuracy and a continuous flow. But the issue can often be addressed with Pulsation Dampeners.The Pulsation Dampeners, usually ...


    By Lutz-JESCO America Corp.

  • Characterising the pressure-leakage response of pipe networks using the FAVAD equation

    This study investigated the feasibility of characterising the pressure-leakage response of water distribution systems using the FAVAD (Fixed and Variable Area Discharges) equation, instead of the conventional N1 power equation. The study was based on 300 network models with randomly distributed leaks and 35 networks generated through a sensitivity analysis. It was found that the leakage rate ...


    By IWA Publishing

  • Pressure-loss computation procedures for non-Newtonian pipe flow

    Wastewater sludge with solids concentrations above about 2 percent exhibit non-Newtonian behavior, i.e., the sludge apparent viscosity changes with the shear rate (flow velocity). To determine pipeline head loss for sludge streams to and from anaerobic digesters, samples of primary, secondary and digested sludge were collected from Orange County Sanitation District Plant No. 1 and analyzed to ...

  • Quadratic approximations for pipe friction

    This paper develops quadratic approximations to the classical models of Darcy–Weisbach and Hazen–Williams for frictional head loss in water pipes. Key elements of the technique are selecting the approximation domain and minimizing the relative error. A comparison for individual pipes over a range of diameter, roughness, and Reynolds number showed that the approximation provides ...


    By IWA Publishing

  • A multi-step genetic algorithm model for ensuring cost-effectiveness and adequate water pressure in a trunk/limb mains pipe system

    A water distribution network is the most expensive component of a water supply system; consequently, the overall planning, installation, and rehabilitation processes should be implemented accurately and carefully. The main issue that developing countries are facing is how to optimize the distribution network to meet increasing water demand. To tackle the issue, this paper proposes a new concept ...


    By IWA Publishing

  • Measuring Pressure and Vacuum Correctly

    Pumps and systems are installed, started, operated, and many times, forgotten. When a problem arises, it’s recommended to install a discharge pressure gauge and suction vacuum gauge on the system. These gauges should be installed near the suction inlet and discharge outlet of the pump. These gauges are usually installed properly, recorded, and along with a pump speed measurement can be ...


    By Gorman-Rupp Co.

  • Installing and Gluing Flexible PVC Pipe

    Installing and Gluing PVC Flexible (Flex) Pipe In order to get a proper bond and create a full, permanent seal when installing PVC Flex Pipe we have several suggestions. If you abide by these simple instructions you can minimize problems, leaks, and system failures! Ensure the pipe is clean and dry. Wipe away any dirt or dust and water. Use a PVC Primer on the ...


    By Red Flag Products

  • Pressure Tank sizing

    Sizing a Pressure Tank with a CSV Cycle Stop Valves utilize a very small pressure tank. A 4.4 gallon size pressure tank is all you need for any size house.  “The larger the pressure tank the better”, is no longer true. Water does not come from the ...


    By Cycle Stop Valves, Inc.

  • PPR pipe fitting mold, PPR pipe mold, PPR mold

    PPR pipe fitting mould  PPR pipe fitting is specially for water supplying piping system, the connection of the fitting with the pipe has 3 different types. 1. gluing type. 2. welding type. 3. screwing type. Based on the function, we divided the PPR pipe fitting mould into below 4 different types. ...


    By Focare Mould Co.,Ltd.

  • Installation of Large Diameter Buried Pipes

    The ProblemThere is an ongoing need to provide designers, specifiers, engineers, consultants and students an overview and general understanding on the proper installation and rehabilitation of buried municipal and industrial pipelines to provide a long-lasting wastewater and potable water infrastructure that will serve future generations. Goals and ObjectiveMost buried ...

  • plastic pipe fitting mold technology

    “ Forever care you, care your molds”, is our insist mentality philosophy. We insist on mold construction design and steel quality, believe these two factors are main points to achieve mold with excellent performance. produces moulds for PVC ...


    By Focare Mould Co.,Ltd.

  • Plugging `hot` pipes in extreme environments

    Some of the world's most intricate infrastructure is found in power plants, chemical plants, refineries, and other factories that use and combine industrial chemicals. The piping for fuel, chemical transport, water supply, and cooling needs is typically very complex and subject to high temperatures and pressures. And since plants are harsh environments, it's a given that piping needs regular ...


    By Petersen Products Company

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