Check Valves Articles

  • Don’t Just Replace a Check Valve, Upgrade It!

    Just over 300 miles northwest of Santa Monica, CA, where the world’s first marine outfall was installed in 1910, check valves are being re-designed and engineered for outfalls all over the world. Outfalls – which are essentially discharge points of a waste stream into rivers, drains, sewers, or other bodies of water – are located in thousands of places across the planet. Many of ...


    By Proco Products, Inc.

  • Sanitary Check Valves Astonishing Features

    Sanitary check valves are mainly used to prevent the backflow of fluids. These valves only allow the flow in one direction. They are usually very small and simple.  As the name suggests, they are designed to maintain a high level of hygiene while maintaining a continuous flow of the medium. These valves are mainly used for highly viscous liquids such as gels and ice cream. ...


    By Adamant Valves

  • Preparing a Beachside City for Future Storm Events with Proco ProFlex™ Check Valves - Case Study

    Project: Post Hurricane Sandy Storm Drainage Update Location: Long Branch, New Jersey Contractor: Precise Construction Proco Products Agent: Valve Tech Sales Distributor: Atlantic Waterworks Long Branch is an oceanfront city of about 30,000 people in northern New Jersey. Much of the city ...


    By Proco Products, Inc.

  • Fascinating Features of Sanitary Check Valves

    Sanitary check valves are mainly used to prevent t ...


    By Adamant Valves

  • Facts about Evaluating Sanitary Check Valves

    The sanitary check valve is possibly the only best valve which can be used in your plant that can be operated without receiving any external assistance or giving any indication of the setting or about the condition. The special quality made the valve unique in the valve industry. Thus anyone can instigate to realize that this kind of valve is one apart from the ...


    By Adamant Valves

  • Sanitary Check Valves Principles and Parameters

    The sanitary check valve will open when the media flows forward and will close when the medium returns to flow. These are mainly automatic valves, whose main function is to prevent the backflow of the means, as well as to avoid the inversion of the pump and the drive motor and the release of the container means. It is also used for safety protection in auxiliary systems where ...


    By Adamant Valves

  • American Standard Sanitary Check Valve Technical Parameters

    1. Bolt connection Body bonnet connection executive standard: ANSI B 1.1 Nut manufacturing executive standard: ANSI B 18.2.2 2 valve cover The bonnet material is the same as ...


    By Adamant Valves

  • Introduction of Check Valve

    With the continuous improvement of high-tech development, valve conditions are also getting higher and higher. New valve products continue to enter the market, the upgrade of drive mode, changes of structures as well as temperature and pressure corrosion on the material requirements of the ...


    By Adamant Valves

  • Patoka Lake Plant upgrade requires new control valves

    Patoka Lake Regional Water & Sewer District (PLRWSD) serves 11 counties in southern Indiana with a population of around 130,000. The distribution of water travels through approximately 850 miles of pipe ranging in size from sizes 3 to 30 inches and includes numerous elevated towers or ...


    By Singer Valve Inc.

  • WaStop Inline Check Valve protects Hull from Flooding - Case Study

    Location:  Hull, United Kingdom Client:  The Environmental Agency, Hull City Council & Associated British Ports Problem:  In December 2013 a storm surge caused water to over top the existing flood defence along the Humber frontage and on the Albert dock causing flooding and widespread damage. Once the water had over topped the ...


    By Wapro AB

  • WaStop Access protects residents in Lewiston NY, USA - Case Study

    Location: Lewiston New York, USA Client: City of Lewiston Problem: The effect of combined sewers (combined wastewater and storm water) and an area prone to flooding from the Niagara River, a section of Upper Mountain Rd in Lewiston New York have experienced repeated flooded basements. On a visit with Jeffery Ritter of the City of Lewiston, Bob ...


    By Wapro AB

  • 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

  • Xinhai Statement of the Implement Valve Standards

    Following are the design, manufacture and inspection standards of our company.   Check Valve: API 6D 24th Specification for Pipeline and Piping valves BS 1868-1975(R1990) Specification for Check Valves (Flanged and Butt-welding Ends) for the Petroleum, Petrochemical and Allied Industries EN14341-2006 Industrial valves —Steel Check Valves ...

  • Hirschthal, Switzerland protected with WaStop DN1200 - Case Study

    Location: Hirschthal, Switzerland Problem: During times of high river levels, flooding occurred in the town of Hirschthal. This flooding occurred when the river level was higher than the stormwater outfall. This lead to river water pushing back up the outfall pipe, and spilling onto roads and residential areas. Solution: A DN1200 (NPS 48″) ...


    By Wapro AB

  • Checking rotary valve clearances

    Rotary valves are precisely machined to accommodate very tight internal clearances. In a smaller standard valve there should be a .003” – .005” gap between the tips and ends of the rotor and the housing / headplate. However, the clearances on many valves are customized to meet the needs of a specific application. For example, in applications with temperature greater than ...


    By Wm. W. Meyer & Sons, Inc.

  • Binary vs Quaternary: How to Decide Which Pump is Right for You

    Well, you’ve made it this far, and I am guessing that you are coming back because I have provided some useful information to help you understand the differences and nuances of a binary versus quaternary pump. This final chapter will help you think of some questions to ask when you are trying to make a decision of which pump to buy, or which system you would like to implement in the ...


    By Waters Corporation

  • Binary vs. Quaternary: Which Pump is Right for You?

    How to decide which chromatography system pump is right for you Well, you’ve made it this far and I am guessing that you are coming back because I have provided some useful information to help you understand the differences and nuances of a binary versus ...


    By Waters Corporation

  • Binary vs. Quaternary Gradients: Precision vs. Accuracy

    In the last blog post I talked about how a gradient is formed by the two different pumps.  Today, we will look at the ability for those pumps to deliver the actual gradient that a scientist requests as well as how precise that delivery is. Before we do that, let’s take a step back and remind everyone the difference ...


    By Waters Corporation

  • Tideflex Valves - No Problem Solving Difficult Scenarios

    Square openings, existing fixings, angled walls, difficult access? Tideflex can engineer solutions for problematic retrofit and flap valve replacements every time. MeasurIT have been providing solutions to drainage outfall valve problems for almost 20 years. It doesn't matter if you need to retrofit a valve to a square opening, align it with existing fixings or drilled holes, or fix ...


    By MeasurIT Technologies Ltd.

  • the installation instructions on duckbill check valve

    Straight-lift check valve should be installed in horizontal pipelines, vertical lift check valve and bottom valve is usually installed in a vertical pipeline, and the media bottom-up flow. Swing Check Valve mounting location is wrong restrictions, usually installed in horizontal piping, but can also be installed in the vertical pipe or dump material pipeline. ...

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