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Displaying 21 - 40 of 277 stories.
June 1, 2013
This flowrate totalizer has an explosion-proof enclosure Precision Digital The PD6830 ProtEX-RTP Pulse Input Rate/Totalizer has a rugged, explosion-proof, NEMA 4X enclosure and is designed for the quick and easy display of local or remote flow information in hazardous areas. The SafeTouch through-glass buttons allow operation without removing the cover. Flowmeter k-factor units are automatically converted...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Focus-on-Explosion-Protection_10580.html
June 1, 2013
During process operations, elevated pressure inside of isolated zones within a process or system can be rapidly reduced by the release of gas and vapor to a dedicated blowdown network. Analysis can be carried out to determine whether a given pressure-relief device will provide sufficient protection from potential vessel rupture for an unwetted-wall vessel or a vessel containing a high-boiling-point liquid...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Vapor-Depressurization-Concept-and-Implementation_10589.html
June 1, 2013
Ongoing advances in the design and use of dry gas seals (DGSs; [ 1]) — as an alternative to traditional oil-lubricated wet seals [ 2] — have helped to improve the reliability and efficiency of compressors throughout the chemical process industries (CPI). One of the major design considerations in mechanical seals is how to protect seal faces from wear, as one face rotates close to a static face...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/protective_equipment/Compressors-N2-Expands-the-Applicability-of-Dry-Gas-Seals_10582.html
May 1, 2013
Some injuries are permanent; some injuries are total. People who work for, or near, small companies need to be protected just as much as those associated with large companies. Small companies, however, usually cannot afford to employ full-time, certified, degreed, safety professionals. From my own career experiences, it seems as though a company with less than 50 employees cannot afford to employ an expert...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/Small-company-safety_10475.html
May 1, 2013
The Advantage 1.0 is said to be the world’s first ATEX and IEC-Ex Zone 1/21 mobile phone with 3G technology. The device is a very robust, dust- and water-proof industry...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/This-mobile-phone-can-be-used-in-hazardous-zones_10496.html
May 1, 2013
The U.S. Occupational Safety and Health Admin. (OSHA; Washington, D.C.; www.osha.gov) has flagged combustible dusts as one of its top issues since the Imperial Sugar Mill explosion in Port Wentworth, Georgia, that killed 14 employees and injured many others in February 2008. Combustible dust is, in fact, one of OSHA’s National Emphasis Programs (NEPs).   The situation today Despite the...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Combustible-Dust-safety_10456.html
April 1, 2013
What if someone were to tell you that there is one method available for sizing relief valves that applies to virtually every situation, including two-phase flow and supercritical fluids? And what if they told you that method is more accurate and easier to use than traditional methods or formulas? As it turns out, both of these statements are true. The approach described here — the Direct Integration...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/The-Direct-Integration-Method-A-Best-Practice-for-Relief-Valve-Sizing_10394.html
April 1, 2013
This article provides guidance to the designer and operator of a safety-instrumented system (SIS), with an emphasis on conducting measurements. The use of best practices to ensure the strength of the overall system design, and the use of instrument diversity to combat common causes of failure, are covered briefly. Greater detail are provided on the use of new technologies — in particular, new...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/alarm_mgmt/Safety-Instrumented-Systems-Focus-on-Measurement-Diagnostics_10393.html
March 25, 2013
Users design safety instrumented systems to bring the risk of identified process hazards to within tolerable levels, using application-specific risk...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/Design-Safety-Instrumented-Systems-with-Relevant-Data_10361.html
March 1, 2013
This company has released the rectangular version of its popular CV-S Explosion vent. Specifically designed to provide non-fragmenting opening when protection industrial process equipment, the...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/The-CV-S-explosion-vent-now-has-a-rectangular-shape_10280.html
December 1, 2012
Airborne respiratory hazards are a very real threat in the chemical process industries (CPI). Existing in a variety of forms including gases, vapors, dusts, mists, fumes, smoke, sprays and fog, such hazards can cause illnesses including cancer and lung impairment, or even death. Examples of respiratory hazards include combustion byproducts; toxic fumes or dust created by metal melting; ozone and nitrogen...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/Clearing-the-Air-About-Respiratory-Protection_9985.html
December 1, 2012
Pig Flammable Safety Cabinets for chemical storage have fully MIG-welded 14- and 18-gage steel construction, and the impact-resistant steel door faces are 56% thicker than other cabinets on the market, the company says. A three-point zinc...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/This-safety-cabinet-has-thicker-doors_9999.html
December 1, 2012
This company has announced a new design for its HRD Lockout Assembly. This explosion-protection product is a mechanical barrier used to prevent an accidental discharge of an explosion-suppression container into...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/A-new-design-for-this-explosion-protection-assembly_10010.html
December 1, 2012
The Atlas line of rupture discs is manufactured using this company’s G2 technology for making rupture discs. The patented technology is capable of making rupture discs without the use of hard-score tooling. The...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/These-rupture-discs-have-higher-pressure-capability_10014.html
December 1, 2012
Conqueror MAG safety glasses provide stylish bifocal eyewear protection and are designed for workers performing detailed tasks. Because the glasses are bifocals, there is no need to switch between regular safety...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/protective_equipment/Use-these-safety-glasses-for-detailed-tasks_9996.html
December 1, 2012
The SIL3-rated MTL 4850 Hart Multiplexer  is suitable for connecting to instrument loops performing safety functions, and is designed to ensure that there is no effect on the analog...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/safety_instrumentation/This-multiplexer-is-rated-up-to-SIL-3_10020.html
November 1, 2012
Leading up to this month’s 2012 U.S. Presidential election, the legislative landscape has been relatively uneventful. On top of their preoccupation with the election campaigns, lawmakers on both sides of the political spectrum have been reluctant to pin their agendas to any bill that might significantly alienate large groups of voters. Nevertheless, two relatively significant changes are coming down...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Are-you-ready-for-inspection_9886.html
November 1, 2012
Preventing dust explosions is not rocket science, and still these disasters occur. This article is written to help prevent these accidents. It describes how and why these explosions happen and what can be done to avoid them.   Why they occur Dust explosions occur when three conditions are present simultaneously. The first is that there is a dust cloud of a combustible material (the fuel). The second...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Dust-Explosions-Prevention-and-Protection_9901.html
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