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Sizes 2″ x 5″ through 12″x 24″
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Low pressure drop with multiple element sizes available for each flange size
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Easy cleaning
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Bi-directional ame arresting
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Vertical or horizontal installation
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Standard materials of construction are carbon steel or stainless steel 316 SS element is standard
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Multiple ow selections per pipe size
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In-line maintenance available
FLAME ARRESTER
The Groth Model 7658A Deflagration & Detonation Flame Arrester inhibits flame propagation in gas piping systems. The design of the Model 7658A Flame Arrester makes it ideal to protect liquid storage tanks containing both NEC Group D (IEC Class IIA) with a Maximum Experimental Safe Gap (MESG) equal to or greater than 0.90 mm.
APPLICATIONS
Models are available in flange sizes from 2″ through 12″ (50 – 300 mm) for the following applications:
- In-line or end-of-line deflagrations in any piping configuration.
- Stable detonations in any piping configuration
- Unstable detonations in any piping configuration (element sizes <=12″)
- Pre-ignition system pressure up to 15.7 psia (1.08 bara)
- Pre-ignition system temperature to 140° F (60° C)
- Bi-directional with respect to flow and ignition source
- Factory installed integral flame sensors are available
FEATURES
Housings are available in carbon steel, 316 SS,and Hastelloy C and elements in 316 SS, Hastelloy C, and other corrosion resistant alloys.
These arresters are compact with high flow capacity and low pressure drop. Elements are easily removed in-line for cleaning and maintenance and are economical to replace if necessary.
OPTIONS
- In-line cleaning
- Other materials available
- Large inspection and cleaning ports
- Testing to customer specifications available
- Swing bolts for fast element removal
Related pressure and vacuum safety-relief products
- Assentech have extensive experience in the supply, installation and servicing of tank equipment from all manufacturers, as well as a full understanding of the theory, standards and legislation that applies.
- Assentech supply all Groth's Product Range ( We are the UK'S Exclusive Supplier for Groth Corporation).
If you or your team want to know more about Tank Venting or get up to speed with the latest changes to API2000 we will be happy to run a technical seminar or lunch and learn session for you. We make no charge for the sessions for end users or groups of 5 or more people.
Some of our customers testimonials
Assentech- pilot operated pressure relief valves service and calibration
After conducting a Third Party Witness Inspection, I was most impressed with Ewart and his team, their professionalism, and product knowledge I found to be excellent.
Ian Johnston
Assentech- Geodesic Dome Installation
Assentech were subcontracted to assemble and install a 25m geodesic dome for Shaft G on the Lee Tunnel project. My experience with Assentech from pre-contract through to assembly has been very positive. Unlike other subcontractors I have experienced on this project, Assentech had a very positive attitude to producing the level of documentation required for a project of this scale. Leading to a high quality pre construction packaged approved in a timely manner. The communication regarding the manufacturing process was first class allowing us to easily plan our works and prepare the site. Dome assembly was carried out very efficiently and completed to programme. The task was correctly resourced and well supervised. The work force had a positive attitude and carried out the task safely. In summary from my perspective it has been a very easy subcontract to manage with a high quality finished product.
Robert Colthorpe
Assentech wins supplier excellence award from Eastman Chemicals
We were extremely pleased with the level of service and professionalism demonstrated by Assentech, right from our initial enquiry, through delivery and post installation. As a recipient of only two of these awards made by Eastman Chemical Company in the UK, based on performance in 2014, Assentech are rightly proud of their achievements.
Assentech-IFR Installations at Vopak, Teesside
As you said “you delivered what it said on the tin”. On time and on budget. Your up front engineering to determine the suitability of your product for our application was second to none, i have not seen anyone else in the industry pay as much attention to detail before you get the purchase order number as Assentech.
Garry Lee
Assentech-IFR Installations at Navigator Terminals
Assentech have supported our Navigator Terminal (formerly known as Vopak Teesside) on two important projects by providing technical assistance and supplying and fitting a total of 11 Internal floating roofs. Both projects have been completed on schedule and on budget. Assentech have provided an excellent level of experience and front end engineering support with high quality drawings and documentation. Their specialist on site labour have worked collaboratively with us and Assentech have proven to be open, honest and flexible partners.
We have experience of both their Heavy Duty Pontoon type and Full Contact IFR’s and we continually monitor operation and performance of all lFR units Installed on site and consider the Assentech supplied Matrix brandto be the best in the market with exceptional build quality and rigidity. Our clients have inspected the installations and have always remarked upon the build quality and have been impressed with their strength in fully supporting up to four people without noticeable deformation. The design and construction of their stainless steel shoe seals continue to prove to operate excellently with no noticeable reduction in performance or flotation ability over the time since Installation.
Assentsch have proven to be extremely competitive on price and their installation and inspection activities have always been thorough. Navigator therefore have no hesitation in recommending Assentech to other companies considering their services.
Brian Beddow
