Pipe Sealing Articles

  • Rotary valve maintenance: preventing operating problems

    Preventing operating problems by maintaining your rotary airlock valve Even though a rotary airlock valve is a relatively simple device, you have to maintain it properly to ensure it performs dependably. Proper maintenance will provide twin long-term dividends: better valve performance and smooth conveying system operation. First, know your valve inside and out. Maintenance ...


    By Wm. W. Meyer & Sons, Inc.

  • Master hand hole (MHH) Plug welding recommendations - Case study

    Purpose This plant service bulletin advises owners and operators of B&W equipment on the recommended seal welding procedure for Master Hand Hole (MHH) plugs. Problem MHH plugs are available in carbon steel (SA-181-70) or 2!4Cr-lMo (SA-182 F22 CL3) for installation in various header and piping materials. Some seal welding methods have resulted in weld ...


    By Babcock & Wilcox MEGTEC LLC

  • Preventing operating problems by maintaining your rotary airlock valve

    Even though a rotary airlock valve is a relatively simple device, you have to maintain it properly to ensure it performs dependably. Proper maintenance will provide twin long-term dividends: better valve performance and smooth conveying system operation. First, know your valve inside and out. Maintenance workers should read the manufacturer's operating manual. This will help them understand the ...


    By Wm. W. Meyer & Sons, Inc.

  • Case Study - Wiggins Road Water Purification Works

    ASW Engineering, a supplier of water treatment systems in southern Africa, was awarded the contract by Umgeni Water to refurbish 12 twin-cell rapid gravity sand filters. The company’s initial assessment of the problem was that the sealing between the filter nozzle sleeves and the concrete panels, and the sealant used in between the precast slabs of the filter floor, had deteriorated due to ...


    By Cadar Ltd.

  • Preventing & Thawing Frozen Pipes

    A “how-to” guide on preventing and thawing frozen pipes. As temperatures drop below freezing around the country, it’s important to be informed of the cold weather’s effect on your water pipes. When temperatures are below freezing, pipes in unheated areas are subject to freezing causing messy, and often expensive issues. Just one burst pipe running at 4-8 ...


    By WaterSignal

  • Leak Detector Lithium Ion Battery

    Lithium ion batteries have been in the news quite a lot recently, and not all of it has been positive. There have been numerous incidents of different products from airplanes to hoverboards to mobile phones catching fire during charging or operation.  These problems occur when there has been damage to the cells’ structure or to the protective circuit.  The protective circuit ...


    By Restek Corporation

  • Characterisation of septage in partially sealed cesspit

    The alteration of wastewater from an individual home under anaerobic conditions in a partially sealed cesspit over the filling period of four months, and the pollution fluxes were assessed. The septage was much more concentrated than raw wastewater. A mass balance found percentage (%) removal rates for biological oxygen demand (BOD5, 78%), chemical oxygen demand (COD, 62%), total nitrogen (TN, ...


    By IWA Publishing

  • Features of Pull Rod Welding Ball Valve

    Pull rod welding ball valve has impressive performances in various industries. Because of excellent properties and high reliability, pull rod welding ball valve attracts more attentions than cast steel ball valve. Currently, pull rod welding ball valve has been widely applied in urban gas, urban heating, petrochemical industry, shipbuilding, steel and other industries. The followings are the ...

  • P-80® Lubricants are effective for Pump Seal Maintenance

    One universal goal of treatment plant operators is to keep operations running smoothly and effectively at all times. While many factors contribute to achieving this goal, one simple way to help reach this objective is to perform regular equipment maintenance. Most plants use a variety of different types of pumps. Maintaining and replacing pump seals on a regular basis helps to ensure that systems ...

  • DELUMPER Bulk Bag Unloader (BBU)

    The DELUMPER Bulk Bag Unloader (BBU) is a heavily constructed system designed for convenient unloading materials even if they contain lumps and agglomerates. This unit employs a gyrator to effectively fluidize the materials for dependable discharge from the bags.  Then,  a heavy duty built-in DELUMPER crusher conditions and freshens the product. The result is an effective pre-engineered ...


    By Franklin Miller Inc.

  • Case study - Sealed Air chooses UL The Wercs to replace six disparate MSDS systems

    The Situation With operations in more than 60 countries, JohnsonDiversey, Inc. (JDI| is a leading global provider of cleaning and hygiene solutions to the institutional and industrial marketplace. JDI serves customers in the lodging, food services, retail, health care, food and beverage sectors as well as building service contractors worldwide. The Challenge ...


    By UL The WERCS

  • Case study - Filming sound leakages in highly reflective office environment

    Problem A newly built office complex is designed with glass facades between the offices and the hallway. The glass facades include a glass door. Although the glass structures themselves have a sufficient sound reduction value, the sound insulation between office and hallway was measured at 19 dB, which was far below the sound insulation criteria for offices given in the regulations. It ...


    By Norsonic AS

  • Thermo Scientific connects at GPSG Brazil delivers enterprise-level productivity linking laboratories to ERP - case study

    The Global Pharmaceutical Supply Group (GPSG) Brazil is an APILA unit of Janssen-Cilag Farmacêutica Ltda., (www.janssen-cilag.com.br) located in São Paulo, Brazil. Janssen-Cilag is one of the world’s leading research-based pharmaceutical companies specializing in pain management and fungal disease. Janssen-Cilag is a member of the Johnson & Johnson family of companies; the ...

  • AVA - the fast way of API drying - Case Study

    AVA dryers for pharmaceutical substances meet and exceed International standards GMP and FDA, also for HP APIs. AVA dryers are customized units, made of high-quality steel (e.g. hastelloy). They can be equipped with fully automatic containment solutions or manual glove boxes to ensure maximum of industrial safety measures. Clamped flange joints and CIP/WIP nozzles make AVA dryers extremely easy ...


    By AVA GmbH u. Co. KG

  • Innovative horizontal reactor - case study

    AVA was recently able to present a newly developed horizontal reactor for laboratory operation. After comprehensive tests at the technology centre, a special machine type was developed for the purpose of drying powdery raw materials for filter elements. The high-tech filter elements are manufactured as end-products for usage in diverse industrial applications. The challenge in the development ...


    By AVA GmbH u. Co. KG

  • FTC Sends Warning To Businesses About Misleading Green Certification Marketing

    The Federal Trade Commission (FTC) announced in a September 14, 2015, press release, "FTC Sends Warning Letters about Green Certification Seals," that it sent warning letters to five providers of environmental certification seals and 32 businesses using ...


    By Bergeson & Campbell, P.C.

  • Nottingham - Condensing Combi-Boiler case study

    Customer: Mr Tony Goodyear, Heating Engineer Location: Nottingham Heating System: Gas Condensing Combi Boiler installed: 08/07 Problems: New condensing boiler fitted within the past 12 months had failed to rectify noise from pump and problems with air present in ...


    By Vortex Energy Saver

  • Notting hill - condensing boiler case study

    Customer: Notting Hill Housing Trust Location: Hammersmith Heating System: Worcester Bosch Condensing System Boiler Installed: 01/10 This is a large 6 Bedroom Victorian Terrace Town House, which was built over 100 years ago and is typical of thousands of similar houses in Suburban London. The ...


    By Vortex Energy Saver

  • A model to simulate leakage through joints in water distribution systems

    The water loss is a phenomenon frequently observed within water distribution systems. A considerable part of water losses occurs either because of the incorrect assembly of joints or because of the fatigue and ageing of the material used to ensure a watertight seal. Moreover, such a leakage is very difficult to detect and to assess. In this work, we present a novel formulation for modelling the ...


    By IWA Publishing

  • DESMI’s Magnetically Powered Pumps Seal the Deal

    For companies pumping dangerous or expensive chemicals, leaks can endanger both personnel and the bottom line. Hermetically sealed, magnetically powered pumps are the state-of-the-play answer. The list of potentially dangerous or simply-too-expensive-to-lose substances being pumped from one part of an industrial process to another somewhere in the world is long. Take isocyanates, for example. ...


    By DESMI A/S

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