valve locator Articles
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Sizing and Selection for Diaphragm Actuated Control Valves
In order to size a valve correctly one must be sure they understand what the valve is required to do, what the system parameters are, and then use this information to pick the valve that will do a proper job while keeping the economic desires in mind. While graphs, charts and even software calculators are necessary, the person responsible for sizing needs to have a clear understanding of the ...
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Pressure Control for Leakage Minimisation in Water Distribution Systems Management
A model to support decision systems regarding the quantification, location and opening adjustment of control valves in a network system, with the main objective to minimise pressures and consequently leakage levels is developed. This research work aims at a solution that allows simultaneously optimising the number of valves and its location, as well as valves opening adjustments for simulation in ...
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Diagnosis of pipe systems by the SLE: first results
In this study, an algorithm is presented for pipe system diagnosis. The algorithm is the Successive Linear Estimator (SLE) previously used in groundwater hydrology to estimate the hydraulic proprieties of soils. The SLE is an iterative cokriging-like technique which provides statistically the best unbiased estimates and quantifies the associated uncertainty. In this paper the algorithm has been ...
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Things you should know about Body Seal Materials and Butterfly Valve Seats
Butterfly valve, as one of the basic kinds of successful valves, has been widely used in many fields. It is basically connected to reach on-off channeling and flow control. In general, it has been important in the fields of petroleum, the industry of substances, metallurgy, electricity and water, etc. With expanding requirements and complex working conditions, it is not possible to use current ...
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Volume measurement in the supply air flow of exhaust gas cleaning - Case Study
Client: Incineration plant (Germany) Product: Hearth furnace coke (HFC), lime hydrate Conveyed volumes: 64 - 100 kg/h Conveyor mechanism: Rotary valve Installation location: Conveying air stream, exhaust gas cleaning Solution: PicoFlow is specially developed for measuring powder flow in transport lines with very low material concentrations. The measuring system delivers absolute ...
By ENVEA
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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. Install Duckbill Check ...
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TransCanada Pipelines - Alberta, Canada
Service: SmartBall - Gas Leak Detection Client: TransCanada Pipelines Project Date: 2010 Type of Pipeline: Natural Gas Diameter: 16-inch Pipe Material: Steel Length: 68.9 KM Flow Rate: 3 meters/second Pure Technologies completed a demonstration inspection of a portion of the Grande Prairie Mainline gas transmission pipeline for TransCanada Pipelines. The inspection was conducted as a ...
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How to Size Diaphragm Actuated Control Valves
There are many options and several conditions that need to be considered when purchasing the right valve for a job. The more information from the field, the better the choice will be. The ultimate goal is to have the best valve for the job required at the most economical price. While it is not rocket science to do this, there is some fundamental information that needs to be taken into account to ...
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Choosing DC valve actuators with the lowest energy consumption
Around the world there is a growing need for automated valve control in remote locations where mains electrical power is not available. For example, effective water management demands efficient and responsive flow control for applications such as groundwater remediation, irrigation and flood prevention. With perceived climate changes introducing more extremes of rainfall or drought conditions, ...
By Rotork plc
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Don’t Let Your Control System Control You
Regular maintenance ensures valves remain healthy. If your system is operating properly, you should physically inspect all valves at least every 12 weeks to check for tubing leaks and other abnormalities. Pressure gauges should be checked to ensure each valve is performing as designed. If you find something wrong, refer to the appropriate instruction manual, which may be available online. ...
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Closed Circuit Coolers: Design with winter in mind
When outside temperatures fall below freezing, water inevitably forms into ice. Open cooling towers can be susceptible to freezing due to their inherent nature of operation. As a result, ice formation becomes a subject of management, not elimination. Fortunately, there are alternative solutions. Closed circuit coolers are used for a multitude of niche applications, but are ideal for evaporative ...
By Evapco Inc.
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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 tanks in each District Metered Area (DMA). The treatment facilities are fed by an intake structure located ...
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Laboratory Freezer Maintenance For Low Temperature and ULT Freezers
As such a vital piece of laboratory equipment, it is important to ensure that laboratory freezers are properly maintained to keep them functioning optimally.At Froilabo, we want you to be able to get the best out of your freezer. For this reason we have put together a quick and simple guide with our top tips for laboratory freezer maintenance.Download and print out our Laboratory Freezer ...
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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 ...
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Rotork electric and pneumatic actuators chosen to deliver fresh water to German towns
Rotork electric and pneumatic actuators have been installed to help deliver fresh drinking water to neighbourhoods in Germany. Stadtwerke Lohr am Main has been supplied with 39 GT pneumatic piston actuators and 13 CK modular electric actuators to be used at two municipal water works which supply the town of Lohr am Main, in Bavaria, and surrounding areas. The GT actuators have been ...
By Rotork plc
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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 borders the Atlantic Ocean to the east or the Shrewsbury River to the north. In 2012, Long Branch was one ...
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Top 10 Reasons to Choose a Diaphragm Actuated Control Valve
Every water system typically consists of piping networks that distribute water from a source or storage reservoir to the end users. This frequently requires miles of piping mains along with pumps systems and controls that all have to be monitored and controlled somehow. Whether this control is to regulate pressure, a level or a flow, this usually will require some form of a valve that will have ...
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Healthy Control Valves
A simple maintenance routine can help ensure trouble-free valve operation. Whether the control valve in your system is the first one that has required maintenance or if you are experienced with maintaining multiple valves in your system, some simple guidelines can help keep them operating at optimal performance. Physically checking all valves at least every 12 weeks is important, assuming that ...
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Keeping Your Control Valves in Good Health
Whether that brand new control valve in your system is the first one you have ever had to look after or if you are an old hand at valve maintenance with tens of valves in your system, there are a few simple guidelines and reminders for keeping it operating at optimal performance. It’s important to physically check valves at least every 12 weeks or so, assuming everything is running fine in ...
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Installation Examples: Grid Tied Turbines: Palma Del Rio Water Tank Turbine - Case Study
The municipality of Palma del Rio (Spain) has a high tank to supply drinking water to around 22.000 people. To avoid excess pressure in the supply network, the tank outlet line has a pressure reducing valve where a significant amount of energy is dissipated 24 hours a day and 365 days a year, producing a significant amount of heat and ...
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