pressure relief valve Articles

  • Protect your high pressure pump

    There are many opportunities to protect your high pressure pump. The best pump protection is selecting the right pump for the application. The next best pump protection is proper installation. And the easiest pump protection is regular maintenance. Pump Selection Selecting the correct high pressure pump for the application will offer the best pump protection. Trying to get a pump ...


    By Cat Pumps

  • Losing system pressure - positive displacement pumps

    In a positive displacement pump, flow is directly related to RPM and pressure by the restriction of the flow in the discharge line. Once the system pressure is set, any change in flow will result in a change in pressure. These changes in flow can occur from certain conditions in the pump inlet line, the pump itself, the pump drive or in the pump discharge line. Pump Inlet The ...


    By Cat Pumps

  • Abha water utility comes out on top with automated control valves

    Abha is a small modern city in the fertile mountains of southwestern SAUDI ARABIA. Its cool summers make it a popular destination for tourists, but in general the population hovers around 250,000. The city has a new reservoir on top of a hill that releases water through 6 km of piping down to its main Noaman reservoir. The top tank is 100 meters higher than the lower tank. This makes for a great ...


    By Singer Valve Inc.

  • Valves - the Ideal and Cost effective Device for Efficient Fluid Control

    What are the Significances of Valves? A valve is a device responsible for handling the flow of fluid-like substances such as liquids, ...


  • Application-based Solutions Even Under Icy Conditions

    Read how LESER’s Pilot Operated Safety Valves (POSV) guarantee a reliable valve function even under icy temperatures with high back pressure-ratios in order to save human life and the environment. Project Description In the production facility of our customer, ...


    By Leser GmbH & Co. KG

  • Ammonia Emergency Plan Calls on Packed Tower to Scrub Released Chemicals,

    A few years ago Union Camp turned a corner.  Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands.  At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively ...


  • Pumps used during tunnel construction: Long service life is crucial

    "Years of reliability is our first priority," according to engineer Albert Feisst, the director of liquid engineering who is responsible for all pumps used in Herrenknecht AG tunnel boring machines. Headquartered in southwest Germany, Herrenknecht is a global market leader in its industry. For more than 30 years, pumps from Allweiler AG have played a key role in these machines. Some tunnel boring ...


    By ALLWEILER GmbH

  • Gas Analyser Unit

    Gas Analysers are used in several industries, chemical industries in particualr use gas analysers to monitor their gas emission levels, air quality samples are compared to high purity reference gases to analyse and measure the emissions.  A common practice is to “calibrate” the sample air against clean, dry pure reference gases such as H2, He, Ar, or N2. The ...


    By Fike UK

  • Managing Process Safety in Ageing Plants to Limit Risk

    Deteriorating components lead to premature failure and unsafe conditions Most industrial plants in the UK and Europe were built between 1960 and 1980 and were expected to operate for no more than 40 years. However, many are still operating today - several years past their expected life span. A lot of equipment is being still used in accordance with the initially selected design ...


    By Elfab Limited

  • Proper Monitoring Essential to Reducing ‘Fugitive Emissions` Under Leak Detection and Repair Programs

    The Clean Air Act requires refineries to develop and implement a Leak Detection and Repair (LDAR) program to control fugitive emissions. Fugitive emissions occur from valves, pumps, compressors, pressure relief valves, flanges, connectors and other piping components. Comparison monitoring conducted by the U.S. Environmental Protection Agency's (EPA) National Enforcement Investigation Center ...

  • Performance of sanitary sewer collection system odour control devices operating in diverse conditions

    Controlling odours from sanitary sewer systems is challenging as a result of the expansive nature of these systems. Addition of oxidizing chemicals is often practiced as a mitigation strategy. One alternative is to remove odorous compounds in the gases vented from manholes using adsorptive media. In this study, odour control devices located at manholes were observed to determine the ability of ...


    By IWA Publishing

  • Case History - Ammonia Emergency Plan Calls on Packed Tower to Scrub Released Chemicals

    Croll-Reynolds designed the Union Camp packed tower scrubber for ammonia removal efficiency at 99+% for the minimum single valve release and well over 90% for the entire range of operation. A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp's Dover, OH, ...


  • Puny drain pumping station

    Bedford Pumps Ltd has recently completed the installation of the Mechanical and Electrical plant at a new pumping station at Puny Drain. The drain which is controlled by the East of Ouse, Polver and Nar IDB’s, drains an area of low lying land to the south of Kings Lynn. The recent redesign of the drainage system in the area necessitated the construction of a new drain and pumping station to ...


    By Bedford Pumps Ltd

  • Chemical Industry: Ammonia Emergency Plan Calls on Packed Tower to Scrub Released Chemicals Case Study

    A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively with ...


    By CR Clean Air Group, LLC

  • Pulp & Paper: Ammonia Emergency Plan calls on Packed Tower Case Study

    A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively ...


    By CR Clean Air Group, LLC

  • Stormwater Solids Reduction for NPDES Permits

    Finally obtaining a National Pollution Discharge Elimination System (NPDES) Permit is often a relief but is by far not the end of the story. Meeting the requirements of that permit often proves to be quite difficult and stiff fines are freely doled out to those who fail to meet regulatory limits. For one Midwest jet propulsion manufacturing facility, the issue of total daily solids discharge ...

  • Pumps’ chemical resistance, simple design help reduce downtime at trinity river water plant

    The Trinity River Authority’s Huntsville, Texas, Regional Water Supply System (HRWSS) provide six million gallons per day of portable water to 28,000 area residents. Each day, 330 gallons of alum are added to incoming river water to remove mud and suspended solids, along with 200 gallons of 50% caustic soda to raise the water’s pH level. In the past, the corrosive nature of the ...

  • 5 Must Do Steps to Keep Your Jet Aeration System Running Smoothly

    Sustained low dissolved oxygen levels in an aeration tank can cause a host of problems — including difficulties in maintaining soluble BOD (biochemical oxygen demand), reduced nitrogen removal efficiency, and challenges with biomass separation. A jet aeration system offers a solution, utilizing both a pump and blower to meet the oxygen transfer requirements of a biological process. A well ...


    By KLa Systems, Inc.

  • Fre-energy 250m3 DIY Installed Biogas Storage

    Following the installation in 2011 of our 250m3 biogas holder at Much Fawley Farm near Hereford, Fre-energy decided to purchase a second Base Biogas Holder for use with their own Anaerobic Digester located at Lodge Farm near Wrexham, which just happens to be the largest organic farm in Wales. Their unique AD tank design incorporates a clever mechanism for in-process de-gritting which greatly ...


    By Base Structures Ltd

  • Your car wash - starting out right

    Selecting a quality pumping system for your car wash can save you time and money over the life of the system. Whether you are a new car wash operator, adding onto your existing system or acquiring a new location, there is nothing more satisfying than knowing your car wash is built with the correct components and the best system design. The correct beginning is the best way to assure you are going ...


    By Cat Pumps

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