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

Displaying 21 - 40 of 196 stories.
March 1, 2013
Dickow Pump No cooling water needed for these hot-water pumps This company offers a wide range of hot-water pumps for temperatures up to 530°F and design pressures up to 1,160 psi. Due to high vapor pressures, standard mechanical seals cannot be used for higher temperatures. Although cooled mechanical seals are the easiest solution, the required cooling water adds additional costs. An alternative is a...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Focus-on-Pumps_10286.html
February 1, 2013
Designed for flow chemistry applications, the patented Asia Syringe Pump is said to give users a tool for performing flow reactions not possible using HPLC pumps or...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-syringe-pump-delivers-continuous-smooth-flow_10151.html
February 1, 2013
Determining the proper preliminary size for centrifugal pumps during the initial stages of any pump-specification exercise requires numerous calculations and assumptions. This article reviews the steps needed to size centrifugal pumps during the early stages of a project, to support initial cost-estimation efforts. Such early pump-sizing efforts are important steps toward final pump selection and detailed...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Sizing-Specifying-and-Selecting-Centrifugal-Pumps_10179.html
January 1, 2013
The portable, non-metallic Flex-I-Liner rotary peristaltic pump evacuates drums and totes containing acids, caustics, salts, chlorides and reagent-grade chemicals without corrosion of the pump or contamination of the fluid. The self-priming design of the Flex-I-Liner has no seals...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Handle-acids-and-caustics-with-this-non-metallic-drum-pump_10073.html
December 1, 2012
The new DEPA Nopped S Diaphragm features an innovative “nopped” surface, designed to create advantageous flow conditions emulating the effect of golf-ball dimples. The use of Santoprene as its core material — a substance...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Flexibility-and-abrasion-resistance-offered-by-this-diaphragm_10005.html
November 1, 2012
The prices of low-voltage variable frequency drives (VFDs) have declined substantially since they were introduced, while the cost of power has increased. Normal project economics will now justify these VFDs — which go up to 375 kW (500 hp) or beyond — for pumps over the largest part of the range of application of the pumps. To efficiently evaluate and apply VFDs, process engineers need to know...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Variable-Frequency-Drives-for-Centrifugal-Pumps_9904.html
November 1, 2012
The Model G3 Progressing Cavity Pump is designed for handling material with high solids content, and those that are semi-dry or caked. The product features a series of finger mechanisms...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Handle-semi-dry-or-caked-substances-with-this-cavity-pump_9942.html
October 1, 2012
The new Pivotrol PTF4 is a high-capacity, pressure-powered condensate pump that covers a wider motive-pressure range. This new version can be operated by steam, air or other...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-concentrate-pump-operates-with-steam-air-or-more_9805.html
September 1, 2012
The Compact Vertical Dosing (CVD) system features a modular design that makes it possible to add or replace fittings and components during, or even after commissioning and without cost-intensive modifications. The...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/A-modular-dosing-system-built-to-match-the-task_9670.html
September 1, 2012
The new E-Series Plastic AODD (air-operated double diaphragm) pumps feature no mechanical seals or packing, thereby eliminating a critical leak point. Instead, these pumps have a stainless-steel containment ring...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Leaks-are-minimized-in-this-AODD-pump_9673.html
September 1, 2012
Pumps are among the most commonly used machines in the chemical process industries (CPI). Condition monitoring tests and predictive maintenance can help pump operators determine when to overhaul pumps in a way that minimizes costs. Despite pumps’ ubiquity and large energy demands, however, relatively little information is available on how to apply predictive maintenance approaches and condition...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Condition-Monitoring-Methods-for-Pumps_9682.html
August 1, 2012
For pumping demanding materials, this company has launched the IQ series, a low-maintenance product that is easy to use and has low operating costs. The IQ series is designed for industrial applications, wastewater treatment plans and tanker trucks or mobile units in...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/The-service-life-of-this-pumps-is-long-and-its-easy-to-service_9541.html
August 1, 2012
The new Zentriplex process metering pump features a completely new construction offering the following key benefits and advantages: ultra-compact dimensions, low weight and energy efficiency — a process pump that produces high outputs and efficiency with minimal floor space...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-new-process-metering-pump-boasts-many-new-features_9542.html
August 1, 2012
With the MiniTest 300, this company introduces the first vacuum leak detector that uses a quartz window sensor instead of the conventional mass-spectrometer detector. The MiniTest 300 operates at a working pressure of up to 200...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/A-helium-leak-detector-without-using-a-mass-spectrometer_9546.html
August 1, 2012
Introduced at Achema 2012, the Chem Mini gear pump (photo) is particularly suited for precision metering tasks of low- to medium-viscosity media. The range covers low flow...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-metering-pump-is-small-but-accurate_9549.html
August 1, 2012
The MiniTest 300 is a vacuum leak detector that uses a quartz-window sensor, rather than a mass spectrometer. Weighing only 11 lb, the unit is suited to mobile leak detection at onsite service calls. The MiniTest 300 operates at a working pressure of...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/A-portable-leak-detector-for-vacuum-systems_9561.html
May 1, 2012
Use these pumps where product containment is important Wilden This company recently announced the availability of its PX800 Advanced Series Stainless Steel AODD Pump (photo). The new PX800 design is center-ported and features a full 51-mm (2-in.) flow path and threaded 51-mm horizontal fluid connections. This construction makes the PX800 pump well suited for liquid-transfer applications where product...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Focus-on-Pumps_9278.html
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
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
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