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

Displaying 21 - 40 of 206 stories.
March 1, 2013
  The 2040 digital position indicator uses a colored light signal, visible from a distance, to show the open or closed position of a valve. Four different color signals are used: open and closed by...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Valve-position-indicators-that-tell-more-than-just-on-or-off_10266.html
March 1, 2013
Introduced last month, these two intrinsically safe solenoid valves (photo) have Ex ia IIC T6 certification. The solenoid operators are designed for use on the 327 range of direct-operated solenoid...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Direct-acting-solenoid-valves-for-use-in-harsh-environments_10273.html
March 1, 2013
The Type 3738 electonic valve-position monitor can be used with on/off valves across a wide range of applications, and enables valve-position monitors to be configured at the push...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Configure-this-valve-position-monitor-with-the-push-of-a-button_10290.html
February 1, 2013
The new Hard Seat VHS Micro-Dispense Valve offers repeatable, non-contact dispensing of fluids in the nano- to microliter range. It features a...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/This-little-valve-has-a-zirconia-ball-and-seat_10143.html
February 1, 2013
  With the newly developed, high-precision 4090 pneumatic volume booster it is possible to amplify the air strength of the set point signal from the positioner to the actuator such that these control valves (depending on the nominal valve...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Control-valves-operate-four-times-faster-with-this-volume-booster_10167.html
February 1, 2013
Pressure-relief valves are widely and effectively used in situations where the pressure in a process vessel rises to above the vessel’s design-pressure rating. Proper relief-valve sizing is critical to plant and process safety to permit fluids sufficient flow area to exit the vessel. Sizing relief valves requires several equations for different flows (liquid flow, vapor flow and two-phase flow), as...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Sizing-Calculations-for-Pressure-Relief-Valves_10173.html
January 1, 2013
The new micro dosing unit Type 7615 is a high-precision diaphragm pump for exact dosing in the microliter range. Comprised of three valves, the dosing unit doses 5...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/A-dosing-unit-for-microliter-volumes_10071.html
December 1, 2012
The Titan Series TSG valve is designed to meet the most demanding applications involving heavy-duty abrasive materials, such as sand, gravel, coal, whole grains, metal powders or minerals. The TSG Valve handles dry...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Handle-heavy-duty-abrasive-materials-with-this-slide-gate_10002.html
November 1, 2012
The new V Series modulating ball valve is designed for controlling pressure, temperature flow and level. The valve body...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/A-new-valve-series-for-control-applications_9919.html
November 1, 2012
By expanding the valve line to include drive sizes up to 130 mm, globe valves, angle seat and diaphragm valves of the Element Series can now be used to achieve fittings up to...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/A-new-larger-drive-size-added-to-this-modular-valve-series_9923.html
November 1, 2012
Manual operators are often included on solenoid valves to enable functional checking during startup and commissioning. These operators are then removed prior to the plant being handed...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/This-solenoid-valve-operator-is-removable-under-pressure_9935.html
October 1, 2012
The new RapidDraw3D Valve-model Generator is a free automated valve-assembly model generator that allows users to quickly generate realistic, to-scale three...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/A-Web-based-application-for-generating-valve-assemblies_9816.html
September 1, 2012
The new GEMÜ 505 (hand-operated; photo) and 555 (pneumatic) angle seat valves were developed for pure steam shutoff valves, and are available in nominal sizes from DN 8 to DN 80. The valves provide an alternative to the...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Aseptic-globe-valves-for-pure-steam-applications_9657.html
September 1, 2012
The MFO actuator from the proven 812/813 Series is a pneumatic actuator that was specially designed to be compatible with sterile and fine-chemical applications, and is particularly well suited for the tight space...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/A-hygienic-actuator-that-requires-less-space_9658.html
September 1, 2012
Though times are changing, many of the traditional challenges associated with running a chemical processing plant remain the same. For years processors have been asking for leak-proof, high-performance valves, but it is only recently that valve manufacturers are employing new technologies, designs and materials that improve performance and reduce leaks.   Improved Cv values “Traditionally...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Valves-An-Open-and-Shut-Case_9675.html
August 1, 2012
This leading manufacturer of plastic-lined valves and process pumps has expanded its product range of shut-off and control butterfly valves. The company now offers valves with a PTFE disc/stem unit to DN 750 (30 in.) or with a...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/This-butterfly-valve-has-a-PTFE-lining_9535.html
August 1, 2012
This company has introduced the world’s first single-use diaphragm valve with pneumatic actuator, which allows a paradigm shift to single-use technology: from manual systems that can be automated for fault free operation and with complying documentation. In the manufacture of small...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/A-disposable-diaphragm-valve-for-high-tech-applications_9543.html
August 1, 2012
Acoustical noise from control valves is not only potentially harmful to workers, but the vibrations can also cause damage to pipelines and other equipment. The new Neles Q2-Trim reduces noise up to 30 dB compared to a typical control valve. The Neles Q2-Trim is a...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Eliminate-valve-noise-before-its-born_9545.html
August 1, 2012
Globe-style control valves are in virtually every chemical processing line where pressure and flow must be controlled. And for the most part, they perform as required, day in and day out, requiring little to no thought or attention. In short, control valves are not an everyday topic of discussion. In fact, the globe valve provides a direct contrast to today’s consumer electronics where major changes...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Control-Valves-An-Evolution-In-Design_9553.html
August 1, 2012
The new CMA series of all-electric modulating actuators are sized for linear, quarter-turn and rotary control valve and pump applications requiring precise position control and continuous...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/These-actuators-feature-a-permanently-lubricated-drive-train_9562.html
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