Archives :: Environmental, Health & Safety :: Plant & Personnel Safety :: Overpressure & Runaways

Displaying 1 - 20 of 47 stories.
October 1, 2014
Reactive chemicals and intermediates are used extensively in the chemical process industries (CPI). Hazardous chemical reactivity can be defined as “any chemical reaction with the potential to exhibit rates of increase in temperature and/or pressure too high to be absorbed by the environment surrounding the system” [1]. Reactive materials can be classified into two groups: self-reacting...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Reactive-Chemistry-in-the-CPI_12233.html
October 1, 2014
This company has expanded its Atlas rupture-disc product line to include Inconel 625 material of construction. The material will now be offered in sizes of 1, 1.5, 2, 3 and 4 in. (DN 25, 40, 50, 80 and 100). Inconel...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Rupture-discs-now-available-in-Iconel_12246.html
June 1, 2014
The WMP (welded muffled plug) rupture-disc assembly is a single-use unit that is threaded into a pressure system. Designed to relieve the pressure of the process media in an overpressure condition, the unit protects equipment, personnel and the environment...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Install-these-rupture-discs-where-atmospheric-discharge-occurs_11828.html
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/overpressure_and_runaways/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
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
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/overpressure_and_runaways/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
November 1, 2012
The Atlas line of rupture discs extends the pressure capabilities of products made with this company’s G2 technology. The term G2...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/This-rupture-disc-line-extends-pressure-capabilities_9944.html
July 1, 2012
In designing and sizing relief-device and effluent-handling systems, one commonly overlooked aspect of the performance is examining the potential for low temperatures that can cause the components of the system to reach temperatures below their respective, minimum-design metal temperatures (MDMT), which may result in brittle fracture with subsequent loss of containment. This article points out limitations...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Overpressure-Protection-Consider-Low-Temperature-Effects-in-Design_9460.html
January 1, 2012
Pressure relief valves and rupture disks are critical safety devices for protecting personnel and processing equipment from overpressurization situations. Presented here are several engineering practices that can help to identify and address common problems with the pressure relief systems of chemical process industries (CPI) facilities. Common causes of overpressurization Overpressure situations can have...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Avoiding-Pressure-Relief-Problems_8842.html
September 1, 2011
This new automatic valve performs multiple functions in a piping system, including pressure relief, backpressure control, pump bypass and anti-siphon protection. The...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/A-multipurpose-backpressure-valve-made-of-plastic_8447.html
August 1, 2011
The lowest KR values in rupture discs KR values are used to determine the frictional flow loss in rupture discs. While the perception is that all rupture discs have high KR values, this company’s FAS (Forward Acting Scored) and PRO+ (Precision Reverse Operating) discs debunk this perception by offering the best flow characteristics available in a rupture disc. Having a lower KR value means that the...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Focus-on-Rupture-Discs-and-Pressure-Relief_8319.html
July 1, 2011
This company has recently introduced its SCD (forward acting) and SCR (reverse buckling) rupture discs with micro-scored calibration sections. The patent-pending technology makes the discs very flexible so...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Micro-scored-rupture-discs-offer-added-benefits_8192.html
May 19, 2011
This company has recently introduced its SCD (forward acting) and SCR (reverse buckling) rupture discs with micro-scored calibration sections. The patent-pending technology makes the discs very flexible so that...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Micro-scored-rupture-discs-offer-added-benefits_8054.html
May 19, 2011
The check valves type 561 and 562 have been redesigned and complement this company’s line of plastic valves. The standard cone check valve (type 561) seals with medium pressure. Type 562 is equipped...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Redesigned-check-valves-feature-a-guided-cone_8070.html
March 28, 2011
This firm has upgraded its Valtek rotary eccentric-plug control valve design to provide increased safety. The upgraded Valtek MaxFlo 3 provides robust shaft blow-out protection in compliance with...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/An-Upgraded-Valve-Boasts-Improved-Safety_6519.html
March 28, 2011
The GCR-S reverse buckling disk (photo) uses SAF (structural apex forming) technology, which enables very low burst pressure to be achieved with excellent opening...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/This-rupture-disk-features-SAF-technology_6828.html
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