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Archives :: Processing & Handling :: Liquid, Gas and Air Handling

Displaying 141 - 160 of 795 stories.
April 1, 2012
The Model TG-300 variable-speed low-flow pump is a positive displacement gear pump designed for smooth, continuous flows from 0 to 400 mL/min...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-gear-pump-delivers-smooth-flows-up-to-5-galmin_9202.html
April 1, 2012
The Atlas Syringe Pump XL allows automated volumetric dosing from 100 µL/min to 200 mL/min. The pump features two syringes that can be independently controlled or combined to enable...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Dose-chemical-reactors-at-high-flowrates-with-this-syringe-pump_9215.html
April 1, 2012
The HydroWhirl S tank washing nozzle range has been expanded to include ATEX-certified versions for use in atmospheres that are potentially...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/tanks_and_vessels/Now-you-can-wash-tanks-in-hazardous-zones-with-this-nozzle_9210.html
April 1, 2012
A three-piece, stainless-steel ball valve features this company’s Smart Connect feature for joining pipes without welding. The ball valves are available in two grades of stainless-steel...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/This-ball-valve-has-pressed-end-connections_9192.html
March 7, 2012
Metso Corp. (Helsinki, Finland; www.metso.com) strengthens its offering for customers in oil-and-gas and power industries by acquiring a globe valve technology and service company, Valstone Control Inc. (Valstone; Chungju, South Korea; www.valstone.com). The acquisition enables Metso to expand its offering for the oil-and-gas and power industries with globe valve technology that plays a key role in most...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Metso-acquires-a-globe-valve-technology-company-in-South-Korea_9101.html
March 1, 2012
The Nikuradse-Prandtl-von Karman (NPK) equation is the most widely used expression to determine friction factors for fluid flow in smooth pipes [1–3]. It implicitly relates the friction factor (expressed here as f; sometimes called λ) to the Reynolds number, Re. It is shown in Equation (1).   ( 1)     Because the friction factor appears on both sides of the equation, an...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/Simplifying-the-Use-of-Pipe-flow-Friction-Factors_9045.html
March 1, 2012
To optimize process control and overall plant performance, magnetic flowmeters (mag meters) are the most widely used devices in many industrial flow-measurement applications. Mag meters are used to measure the flow of water and other conductive liquids by applying a magnetic field to the flowing liquid. Following Faraday’s law of electromagnetic induction, conductive liquid flowing through the...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/Selecting-Two-and-Four-wire-Magnetic-Flowmeters_9050.html
March 1, 2012
Head loss due to friction for fluids traveling through pipes, tubes and ducts is a critical parameter for solving turbulent-flow problems in the chemical process industries. The Colebrook equation is used to assess hydraulic resistance for turbulent flow in both smooth- and rough-walled pipes. The equation contains a dimensionless fluid-flow friction coefficient that must be calculated for the properties...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/Determining-Friction-Factors-in-Turbulent-Pipe-Flow_9059.html
March 1, 2012
Rotating machines, such as pumps, compressors, gas turbines, steam turbines and electric motors, play crucial roles in most chemical process industries (CPI) facilities. Increasingly, advanced condition monitoring is being used to improve the operation and maintenance of these workhorse components. The use of well-designed condition-monitoring systems, predictive-maintenance strategies and failure...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/compressors/Condition-Monitoring-for-Rotating-Machinery_9073.html
March 1, 2012
The Axxair range of pipe cutting, beveling and welding machines has been added to this company’s range of products. By simply exchanging...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/piping_and_tubing/Cut-bevel-and-weld-pipe-with-a-single-machine_9056.html
March 1, 2012
The Endura Series Dual Split Flange (DSF) swivel joint is specially designed to transfer acids, solvents, petrochemicals and other toxic fluids. The combination of the DSF swivel technology with user-friendly...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/piping_and_tubing/This-swivel-joint-is-made-for-toxic-fluids_9062.html
March 1, 2012
Metso Fugitive emissions are minimized with this control valve The Neles Finetrol rotary control valve (photo) can achieve ISO 15848-1 class BH fugitive-emission-type approval certification in the most demanding endurance class (CH-3; 100,000 mechanical cycles). The new design reduces health and safety risks, says the manufacturer, because leakage from gland packing can cause serious damage to personnel...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Focus-on-Valves_9032.html
March 1, 2012
KTM Unibody EB700 ball valves have a one piece, cast body to minimize potential leak paths and improve safety compared to split-body designs. The EB700 series has a rugged design with a seat made...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/This-ball-valve-has-a-one-piece-cast-body_9043.html
March 1, 2012
The LSS-30-PP is a sampling system designed to allow sampling of hazardous process fluids without personnel contact. The LSS-30-PP is similar in design to the LSS-140-ST from this company, but has a smaller sample cylinder (300 mL), and has wetted parts constructed from polypropylene for...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Sample-corrosive-or-toxic-process-fluids-with-this-device_9046.html
February 1, 2012
  Screw compressors are widely used throughout the chemical process industries (CPI) and represent a substantial percentage of all positive-displacement compressors that are now sold and in operation in CPI facilities. In general, screw compressors are efficient, reliable, simple and compact compressors that are competitive from both an initial cost and an operating cost standpoint compared to other...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/compressors/Choosing-Oil-injected-Screw-Compressors_8954.html
February 1, 2012
Solutions for high-purity piping code You ran a most illuminating article based on the new ASME code (July 2011, New Piping Code for High-Purity Processes, pp. 49–53), and I have been examining the welding industry’s response to the new challenges. Recent years have witnessed an exponentially increasing demand for improvements in piping fabrication quality. The introduction of a new ASME piping...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/piping_and_tubing/February-Letters-Solutions-for-high-purity-piping-code_8951.html
February 1, 2012
The ecosmart metering pump is now available with a PVC pump head. That means the ecosmart can even be used in applications that require good resistance against highly aggressive chemicals — including...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-metering-pump-now-has-a-head-made-of-PVC_8963.html
February 1, 2012
DosaSkid is a “plug-and-play” metering device that can be used for a wide variety of applications, including desalination, boiler-water treatment, industrial water treatment, petroleum refining...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/A-turnkey-and-ready-to-use-metering-solution_8966.html
February 1, 2012
Pumping fluids that contain abrasive particles, such as those found in inks and paints can have a detrimental effect on pump performance, with erosion being a key factor in reducing pump life. To meet these challenges, this company has...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-little-pump-handles-fluids-containing-abrasive-particles_8974.html
February 1, 2012
This all-metal, free-running, self-energizing reusable locknut is manufactured in stainless steel (303, A286 or 90) and 95% Ni stainless-steel alloy and is suitable for protecting and preserving bolts, studs and...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/A-locknut-for-severe-weather-vibrations-and-other-extremes_8985.html
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