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

  • Installation Steps of Sanitary Ball Valve

    The sanitary ball valve uses a special molding process to allow a dense sealing surface to achieve zero leakage. Its sphere and shank are fused as one to remove the valve stem from pressure due to pressure changes within the possibility of pressure pieces and, therefore, achieve the fundamental guarantee of safety. It uses a full metal hard welding process that is resistant to strong corrosion. ...


    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

  • Sanitary Ball Valve Requirements and Maintenance

    Regarding the requirements of sanitary valves, the most important requirement is their material because it is in direct contact with the flow of the media. In general, sanitary tap materials are made of stainless steel and the two main materials are 304 and 316L. These two stainless sheets of steel are the most resistant to corrosion. As a result, they will not easily ...


    By Adamant Valves

  • Why You Should Use Sanitary Ball Valves

    Sanitary ball valves are used in a wide range of applications involving high pressure. These valves are popular for two main reasons. First, they allow unrestricted total flow that does not allow any hardware restriction through the valve. Second, the valve can also be serviced without the complete ...


    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

  • Hydraulic characterization and transient response of pressure reducing valves: laboratory experiments

    A pressure reducing valve (PRV) regulates the outlet pressure regardless of the fluctuating flow and varying inlet pressure, thereby reducing leakage and mitigating the stress on the downstream water distribution network (WDN). Notwithstanding the crucial importance of PRVs, few experimental data are available in the literature. The aim of this paper is to overcome this gap by means of the ...


    By IWA Publishing

  • 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

  • Treating wastewater as a resource

    A number of UK landfill operators are turning wastewater into a resource by utilising OTT monitoring and control systems to manage the irrigation of Willow crops (for renewable energy generation) with pre-treated effluent. Background Leachate from landfill sites represents a significant potential environmental liability, extending long into the future after a landfill site has ...


    By OTT HydroMet

  • 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 ...

  • Learining how to Choose Materials for Gas Valves

    The materials and the quality of gas valves are so important that their disqualification will lead to leakage in-or-outside the body of the valve. If the strength, rigidity and overall performance of the components of the valve body cannot meet the requirements or even break, it will result in the spillage of gas and explosion. Therefore, material and quality are the most critical part during the ...

  • 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.

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