Showing posts with label Safety. Show all posts
Showing posts with label Safety. Show all posts

Wednesday, December 13, 2017

Draeger Tubes & Chip Measurement System Handbook

Draeger is the leader in industrial gas and vapor analysis and have developed more detection devices and tubes for more applications than any other gas detection company.

Draeger sampling tubes allow identification and measurement of different substances even under difficult conditions.

Draeger Chip Measurement System (CMS) combines Chips for measure specific substances with an electronic analyzer for easy-to-use spot-measurement. The analyzer combines an optical system for analyzing the color reaction with a mass flow controller and pump system.

Download the Draeger -Tubes & Chip Measurement System Handbook here.

Tuesday, March 28, 2017

Tuesday, January 31, 2017

More on the Drager PointGard 2000 Series Toxic and Flammable Gas Detector

Following up on an earlier post, here is the Drager PointGard 2000 Series literature for your convenience.

Safety and Performance Through Proper Installation and Maintenance of Rupture Discs

rupture discs
Increase safety with proper installation
and maintenance of rupture discs.
Rupture discs are fixed setpoint devices designed to provide failsafe performance in venting gases or liquids in the case of excessive pressure. The precision made and certified disc is contained within a holder specially designed for the disc and to facilitate proper inspection and maintenance.

An integral part of the inclusion of a safety device in a process system is the manner in which it is installed. Documented product performance, upon which the user is depending, is predicated upon installation in a manner which duplicates the rating condition. Varying from the manufacturer's installation procedure or instructions can have an impact on the performance of almost any process measurement and control product, but adherence to procedure is especially important when safety devices are concerned. The video below demonstrates the proper procedure for installing Fike rupture discs.

Fike provides certified rupture discs to meet all applications for process industries including isolating pressure relief valves from corrosive materials, reducing involuntary emissions, insuring pressure relief in critical applications, rupture discs for sanitary/pharmaceutical processes.

Share your over-pressure safety requirements with a product specialist and select from the complete line of cost-effective rupture discs, holders and custom pressure relief devices which are compliant with global code regulations and designed to meet or exceed industry requirements for performance, reliability and quality.

Friday, December 9, 2016

Portable Gas Detectors For Industrial Applications



This video covers the Servomex line of portable gas analyzers that can be utilized as benchtop units or true carry around portables. Servomex has a long history of solid instrument performance and innovation in gas detection and analysis.

Share your gas detection and analysis requirements and challenges with an application specialist, combining your process knowledge with their product application expertise to develop effective solutions.

Monday, July 25, 2016

Installing Sanitary Rupture Discs

Sanitary Rupture Disc
Sanitary Rupture Disc
by Fike
Rupture discs are designed to provide instantaneous pressure relief at a predefined pressure and temperature. Installation is an important consideration that can affect the performance of a ruptured disk. Installation instructions are included with all ruptured disk shipments. These instructions should be followed carefully and completely.

Remember to locate the rupture disc word will have sufficient clearance to operate unhindered. The rupture disc should be vented to a safe area where people and equipment are not at risk as a system discharge can be hazardous, or cause injury. The piping near the rupture disc should be braced to absorb shock caused by the opening a ruptured disk. A danger sign should be placed in a conspicuous location near the zone of potential danger. Keep the danger sign clean and unobstructed for ease of viewing.

Fike sanitary ruptured discs are designed for use with standard sanitary ferrule's and clamps. There are a variety of sanitary ferrule standards used in industry including, but not limited to, Tri-Clover with standard clamp, and also high-pressure clamp DIN 32676, ISO 2852 and NovAseptic NA Connect.

To install a new ruptured disc, remove the ruptured ruptured disc from its piping. Please use caution as a ruptured disk may have sharp edges. Remove clamp, and separate the ferrule components. If this is an existing installation, it is important at this point to do a visual inspection of the ferrule. Inspect them for nicks, scratches, dents, gouges and galling. Before installing a new ruptured disc into the ferrule, clean the seat area with the solvent compatible with your media.

When unpacking the new ruptured disc it should be handled carefully. Visually inspect the rupture disc for damage. Read the complete information contained on the ruptured disc tag. Verify that the disk size, type, pressure, and temperature are correct for your system. After verifying that you have the correct rupture disc, inspect the silicon, Viton and EPDM gasket position, and ensure that the gasket ID is centered on the dome the rupture disc. Then place the rupture disc directly into the ferrule’s, with the flow arrow on the ruptured disc tag pointing in the same direction as the required flow. For the Teflon and J1500 gaskets, carefully place both at the gasket halves on the rupture disc, so that they interlock around the outside diameter of the rupture disc, so that the ruptured disc tag extends through the notches in the gasket haves. Place the rupture disc into the ferrule’s with the flow arrow on the ruptured disc tag pointing in the same direction as the required flow.

Install the clamp around the ferrule’s, so the gap between the two clamp haves is centered and equal on the ruptured disc tag. Apply the recommended torque to the clamp at this time. Specifications can be found in the written installation and maintenance instructions. Whenever possible it is recommended to install sanitary rupture discs between two ferrule spool pieces. Using this approach can help prevent any unintentional stress or damage to the disk during installation. Assembly can take place at a workbench, rather than at the installation location, where conditions could be less than ideal, greatly reducing the possibility assembly errors. This practice is suitable for standard ferrule installations utilizing Tri-Clover with standard clamp, and also high-pressure clamp DIN 3267 and ISO 2852. Fike realizes that conditions do not always allow for this, so caution should be exercised when installing rupture discs directly between two ferrule’s.

As part of the new 3A Standard 60-01, certified sanitary ruptured discs are suitable for a one-time use, or single installation only. Depending on the cleanability of components in your process, rupture disks can be cleaned or steamed in place if the process allows. Avoid any high pressure stream of cleaning agent from being directly focused on the ruptured disc, as this could cause damage. If ruptured discs are removed from the process for any reason, they must be replaced in order to remain compliant with 3A Standard 60-01. 3A certified rupture discs will be marked both with the 3A symbol and one-time installation statement. An optional feature for the sanitary rupture disc would be the integral burst indicator, which provides instantaneous notification of rupture disk activation.

Fike ruptured discs and ferrule's come in many sizes and types. A common requirement of all designs is proper handling and installation. This explanation assumes installation is done under ideal circumstances. We realize that the location of your particular ruptured disc may not be ideal, however when these steps and written instructions are followed as closely as possible, the performance and service life of your rupture disc may be enhanced. As always contact technical support or your local Fike representative if you have any questions or need any assistance.

Friday, April 15, 2016

X-zone 3D Adds WIFI to Dräger X-zone Mobile Gas Detection System

Dräger X-zone
Dräger X-zone
The Dräger X-zone 5000/5500 is a mobile gas detection system for flexible area monitoring. It can be used for the measurement of up to six gases in combination with the gas detection instruments Dräger X-am 5000, 5600 or 5100. Up to 25 Dräger X-zone 5000/5500 can be automatically interconnected to form a wireless fence line. Therefore it is possible to control large areas continuously.

While the X-zone has been available with GSM and Modbus communications for a while now, the new X-zone 3D wireless communication module offers WIFI.

Designed to work with Dräger X-zone gas detectors, the X-zone 3D sends all data and alarms to any workstation location, email/SMS (text messaging) address, or the cloud wirelessly. This secure area monitoring system lets you determine the time, place and concentration of toxic gas levels – the most vital data points – well outside of the danger zone.​

The video below explains the interconnection concept and capabilities via GSM, MODBUS. The availability of WIFI connections extends the connectivity and communications for Dräger devices to a whole new level.



For more information, contact:
Flow-Tech
410-666-3200 (in Maryland)
804-752-3450 (in Virginia)
www.flowtechonline.com

Tuesday, March 29, 2016

List of Detectable Gasses and Vapors by CAS-Number

Leak detection Drager
As manufacturing processes advance, the use of flammable and toxic gasses is increasing, along with the probability of gas leaks. The potential for industrial plants, employees, and first responders to confront these situations is also increasing with potentially deadly consequences, namely explosions, asphyxiation, and loss of life.

A leak is an unpredictable abnormal release of gases or vapors of higher concentrations. A leak has to be regarded as an exceptional event of a relative short duration. In case of normal operation there is only clean air (without even low concentrations of the target gas or vapor). A gas detection system for leak detection is not to measure a gas concentration but to give alarm reliably if a preset alarm threshold is exceeded.

A key part of any safety plan is properly identifying what gasses are present, installing the proper early warning detectors, and defining a comprehensive safety plan.

The CAS-number is a worldwide used code to identify a chemical substance non-ambiguously. This is a unique numerical identifier issued to every chemical substance described in the open scientific literature (from 1957 to present) by the Chemical Abstracts Service. It the easiest way to characterize a chemical substance, including organic and inorganic compounds, minerals, isotopes, alloys and nonstructurable materials.

The guide below, provided by Drager, is a very helpful reference document of CAS-Numbers.


As with any critical process control or safety application, consultation with an applications expert is imperative prior to the selection or specification of any leak detection, gas monitoring, or safety device.

Thursday, February 18, 2016

The Concept of Explosion Protection Venting

Explosion venting products
Explosion venting products
(courtesy of Fike)
When a spark or other ignition source ignites particulate in a vessel a fireball develops as material burns in grows at an exponential pace. The pressure front expands as the fireball grows reaching the explosion vent. The explosion vent opens at a specified pressure, limiting the stress on the vessel on allowing it to maintain structural integrity, while also releasing the pressure and allowing the fireball to vent into a safe area outside the facility.

Alternatively, when the process can not be vented safely outside, the explosion vent opens and directs the fireball into a flameless venting device. the flames are extinguished as they pass through the flame arresting screens allowing pressure release, but preventing dangerous flames from entering the work area protecting personnel and preventing secondary explosions. It is also necessary to isolate the deflagration, preventing the transmission the flame into interconnected vessels.

During a deflagration, the pressure wave from the explosion reaches the detector connected to the explosion protection control panel, which processes 4,000 data points per second. The system alarms at a preset pressure level and sends an activation signal to the isolation devices.

The system opens a rupture disk on isolation container that uses 500 psi of nitrogen to drive suppressant into the ductwork, providing a chemical isolation barrier that prevents the propagation of the explosion. the system maintains a history of the event for future reference.

Simultaneously, the gas cartridge actuator drives the piston on the isolation valve, closing the slide gate, and provides mechanical isolation which prevents the propagation of the explosion through the duct work too interconnected vessels.

Sunday, January 31, 2016

Explosion Detection and Suppression Systems

explosion detection system
Explosion detection system (by Fike)
A typical explosion detection sequence begins when a spark or other ignition source ignites particulate in a vessel. The resulting deflagration grows at an exponential pace as the material burns. The pressure front preceding the deflagration expands, reaching the pressure detector connected to the explosion protection control panel, which processes 4,000 data points per second. The system alarms at a preset pressure level, and activates the gas cartridge actuators on the suppression and isolation devices. The system maintains a history event for future reference.

The gas cartridge actuator drives the piston on the isolation valve, closing the slide gate and provides mechanical isolation which prevents the propagation of the explosion through the duct work to interconnected vessels. The actuator opens a rupture disk on the suppressor bottle, that uses nitrogen pressurized to 900 PSI to drive suppressant into the vessel, filling the entire cavity and extinguishing the advancing deflagration.

It is also necessary to isolate the deflagration, preventing the transmission of the flame into interconnected vessels. The system simultaneously opens a rupture disk on an isolation container that uses 500 PSI of nitrogen to drive suppressant into the ductwork, providing a chemical isolation barrier that prevents the propagation of the explosion. Fike’s explosion protection system effectively saves lives and property from explosion damage.