Archives :: Environmental, Health & Safety :: Plant & Personnel Safety :: Safety Instrumentation

Displaying 21 - 40 of 46 stories.
March 28, 2011
Siemens The Gateway CM104 TSAA (photo) — a new migration solution for integrating Triconex fail-safe controllers into Simatic PCS 7-based control systems — enables existing systems to be expanded or...
March 28, 2011
This company has improved the performance and increased the functionality of the fail-safe modules for its modular Simatic ET 200M I/O station. The new ET 200M modules (24F-DI, 8 F-DO and 10 F-DO) are now...
March 28, 2011
The Explosion Isolation Pinch Valve (EIPV) is an economical, yet reliable form of explosion isolation — a method for preventing deflagration propagation...
March 28, 2011
The Jamesbury series 7000/9000 flanged ball valve are automated shutoff valves designed not only to meet EN161 and EN264, as approved by TÜV Rheinland, but also provide protection against...
March 28, 2011
The TQ+ is a new pre-torqueable rupture disc holder in this company’s product line. The TQ+ type was designed to be installed in multiple international flange rating...
March 28, 2011
SIS-Tech The Automated Overfill Protection System (AOPS; photo) is a safety-instrumented system that can prevent dangerous overfill conditions in terminals, tank farms and process vessels. The AOPS...
March 28, 2011
Released in May, this universal remote input/output (I/O) module for the Safety Manager platform allows process manufacturers to integrate more safety devices while simplifying installation and maintenance. The...
March 28, 2011
Metso Automation This firms offering of valves, actuators and intelligent controllers has been extended with the introduction of SIL-certified ball valves. Trunnion...
March 28, 2011
FireBag thermo-activated shut-off devices turn off gas supply when ambient temperatures reach 212°F, preventing the spread of fire that can lead to gas explosions. The FireBag will meet...
March 28, 2011
FireBag thermo-activated shut-off devices shut off gas supply when ambient temperatures reach 212°F, preventing the spread of fire that can lead to gas explosions. The FireBag will...
March 28, 2011
The Coker Drum Safety System (CDSS; photo) automatically inhibits the opening of valves under unsafe process conditions. In a crude petroleum refinery...
March 28, 2011
Introduced last August, the pilot operated safety valves (POSVs) include the pop-action Series 810 and modulated-action Series 820 valves. POSVs are typically used in petroleum refineries and gas...
March 28, 2011
Assured Automation The HP (high-performance) Butterfly Valves (photo) offer Class VI shut-off and an advanced seat design that provides a bi-directional...
November 1, 2010
When tanks are draining, the potential may exist for a swirling vortex to form leading from the liquid surface to any of the bottom-exit or side-exit nozzles connected to downstream piping (Figure 1). One important aspect of the vortex is whether it will entrain air or other gases into the discharge flow. Such vapor entrainment can lead to a host of problems, ranging from vacuum collapse of the supply...
January 19, 2010
ABB (Wickliffe, Ohio; says its Safety Execution Center in Buenos Aires, Argentina has been certified by TÜV as having in place and applying a Functional Safety Management System (FSMS) for delivery and implementation of safety system projects in...
August 12, 2009
HIMA (Brühl, Germany and Houston, Tex.), a designer and manufacturer of safety automation solutions, has been selected by Lanxess AG (Leverkusen, Germany) to upgrade an existing ESD (emergency shut-down) system in its hexane oxidation plant located at the Krefeld-Uerdingen Chemical Park, in the North Rhine-Westphalia region of Germany. Lanxess selected HIMA’s HIQuad H51, a safety product...
August 1, 2009
By definition, integrated safety instrumented systems (SIS) have the potential to reduce risks. But recent advancement is also enabling the use of more sophisticated instruments and tools that can benefit the process. For these reasons, integrated control and safety systems (ICSS) are receiving recognition across the chemical process industries (CPI). “There have been developments from a technology...
May 1, 2009
By continuously monitoring for abnormal situations, such as a fire, and combustible or toxic gas releases, fire and gas (F&G) detection and mitigation systems are the linchpins to maintaining overall safety and operation of industrial facilities. The premise of these systems is to protect processes and the environment by providing early warning of incidents and enabling actions that prevent them from...
January 13, 2009
I would like to draw your attention to a few points on the November 2008 article, Pressure Relief System Design (pp. 40–45): 1. Pressure drop and pressure loss: The inlet pressure “drop” that the author refers to under Relief system piping is non-recoverable pressure loss, and does not include a “drop” in pressure due to elevation increase. It should be labeled as a pressure...
November 1, 2008
  Pressure relief systems are vital in the chemical process industries (CPI) for handling a wide variety of situations. They are used to prevent pressurization above a system’s design pressure; for venting during an unusual or emergency situation; and for normal depressurization during a shutdown, as examples. In some cases, such as when non-combustible gases including steam, air and nitrogen...
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