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Products > Bursting
Panels > Bursting Panels Details  |
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Panel Flo-Tel™ 
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World-wide,
a number of regulatory and best-practice groups have worked
to improve the safety and reliability of explosion venting.
These groups include NFPA, ISO and others. Elfab has adopted
and deployed their design codes and complied with all relevant
legislation for over 25 years to develop our product line.
As a result, Elfab can combine expert knowledge of your application
and manufacturing flexibility to produce a product that meets
your requirements.
Explosions in gases, vapours or dusts are not explosions in
the military sense, rather they are characterised by the rapid
burning of the gas or dust, which is more properly termed
a deflagration. The chemical products of combustion and its
physical and thermal effects cause a rapid and potentially
dangerous rise in pressure in a containing vessel. |
Whilst it is obvious that inflammable gases and vapours constitute
an explosion hazard, it is less well appreciated that the dusts of
combustible solids can also give rise to explosions; this may occur
with the dusts of metal, plastics, wood, coal, sugar, starch, flour
and many other commonly used products.
Elfab is unique in having panels approved as a “Protective System”
II GD (when used with an Elfab approved frame), and also a detection
device
II 1GD EEx ia IIC. EC-Type Examination Certificate ITS03 ATEX 11359,
supplied integral to the panel, called Panel Flo-Tel™ which should
be connected to an intrinsically safe circuit.
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- ATEX Approved protective system II
GD
- ATEX Approved detection device
II 1GD EEx ia IIC
- EC-Type Examination Certificate ITS03 ATEX 11359
- Fail-safe
- Maintenance free
- Instant pressure relief - rapid full venting
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- Non fragmenting design
- Vacuum and back pressure capability
- High temperature capability
- Corrosion resistance
- Dust tight seal
- Low installation costs
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| Specifications |
| Size Range |
0.08m2 to 2.4m2 (0.9ft2
to 25ft2) |
| Set Pressure Range |
0.05 bar g to 0.5 bar g (0.7 psig to 7
psig) |
| Temperature Range |
-40 to 250C (-40 to 482F) |
| Fragmentation on Burst |
Non-fragmenting design |
| Vacuum Service |
Back pressure capable |
| Material Range |
Stainless Steel as standard, others available |
| Designs |
Rectangular, circular, trapezoidal |
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| Flat
panels offer an economic and efficient means of protecting plant
from overpressure caused by an explosion. |
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The issue of relief area required by the wide variety of applications
is addressed by offering custom sizes in the following designs:
square, rectangular, trapezoidal and circular vents sizes across
an extensive range of sizes.
Elfab has unique 3D laser cutting and testing facilities that enable
us to produce competitively priced, certified opening bursting panels
in any configuration and in any bolt pattern.
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Standard Bursting Panel Sizes
| Type |
External Dimensions
mm (in) |
Internal Dimensionsmm
(in) |
Vent Area
m2 (ft2) |
Product Code |
| Rectangular |
1850 x 1500
(72.8 x 59.0) |
1770 x 1420
(69.7 x 55.9) |
2.48 (25.4) |
XSF2400 |
| Rectangular |
1850 x 1220
(72.8 x 48.0) |
1770 x 1140
(69.7 x 44.9) |
1.99 (20.8) |
XSF1970 |
| Rectangular |
1220 x 1220
(48.0 x 48.0) |
1140 x 1140
(44.9 x 44.9) |
1.27 (13.4) |
XSF1270 |
| Rectangular |
1100 x 1100
(43.3 x 43.3) |
1020 x 1020
(40.2 x 40.2) |
1.00 (10.6) |
XSF1000 |
| Rectangular |
1100 x 1000
(43.3 x 39.4) |
1020 x 920
(40.2 x 36.2) |
0.92 (9.7) |
XSF920 |
| Rectangular |
1000 x 1000
(39.4 x 39.4) |
920 x 920
(36.2 x 36.2) |
0.83 (8.8) |
XSF830 |
| Rectangular |
1220 x 735
(48.0 x 28.9) |
1140 x 655
(44.9 x 25.8) |
0.72 (7.6) |
XSF720* |
| Rectangular |
980 x 870
(38.6 x 34.3) |
890 x 780
(35.0 x 30.7) |
0.68 (7.2) |
XSF680 |
| Rectangular |
850 x 850
(33.5 x 33.5) |
770 x 770
(30.3 x 30.3) |
0.58 (6.1) |
XSF580 |
| Rectangular |
1000 x 666
(39.4 x 26.2) |
920 x 586
(36.2 x 23.1) |
0.52 (5.3) |
XSF524 |
| Rectangular |
750 x 750
(29.5 x 29.5) |
670 x 670
(26.4 x 26.4) |
0.44 (4.6) |
XSF440 |
| Rectangular |
735 x 735
(28.9 x 28.9) |
655 x 655
(25.4 x 25.4) |
0.41 (4.3) |
XSF410* |
| Rectangular |
690 x 590
(27.2 x 23.2) |
610 x 510
(24.0 x 20.0) |
0.30 (3.2) |
XSF300 |
| Rectangular |
735 x 455
(28.9 x 17.9) |
655 x 375
(25.8 x 14.8) |
0.23 (2.4) |
XSF230* |
| Rectangular |
455 x 455
(17.9 x 17.9) |
395 x 395
(15.6 x 15.6) |
0.14 (1.5) |
XSF140* |
| Rectangular |
455 x 300
(17.9 x 11.8) |
395 x 240
(15.6 x 9.4) |
0.08 (0.9) |
XSF080 |
| Round |
1220 (48.0) |
1100 (43.3) |
0.93 (9.8) |
XRF933 |
| Round |
1159 (45.6) |
1000 (39.4) |
0.77 (8.1) |
XRF770 |
| Round |
1044 (41.1) |
900 (35.4) |
0.62 (6.5) |
XRF620 |
| Round |
937 (36.9) |
800 (31.5) |
0.49 (5.2) |
XRF490 |
| Round |
828 (32.6) |
700 (27.6) |
0.37 (3.9) |
XRF370 |
| Round |
710 (27.9) |
600 (23.6) |
0.27 (2.9) |
XRF273 |
| Round |
603 (23.7) |
500 (19.7) |
0.19 (2.0) |
XRF190 |
| Round |
447 (17.6) |
350 (13.8) |
0.09 (0.98) |
XRF090 |
Domed panels can also be produced in the above sizes,
ask your representative for details
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Support
Frames and Gaskets
Steel, stove enamelled frames
are available for installation of all panels. The frames have built-in
support bars to prevent panel implosion. Support bar configurations
can be designed to suit specific vacuum and back pressure requirements.
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| Vent
Sizing
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Over the years,
many methods have been adopted for sizing vents. At Elfab
we are able to calculate sizes using any of the recognised
methods. Our standard method is to use “Win–Vent”
sizing software.
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| H and
D |
Height and
diameter of vessel (or equivalent)
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| Kst |
Maximum rate
of pressure rise of media (dp/dt) as determined from tests
in 1m3 vessel
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| Pred |
Maximum pressure
permitted in the event of an explosion.
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| Pstat |
is also required for sizing,
being the set pressure of the panel. Elfab can provide this
information.
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| Pmax |
Maximum pressure reached
during an explosion in a closed vessel, based on 1m3 vessel
tests (is only required if using Scholl equation stated in VDI
3673) |
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Under
severely turbulent conditions, an explosion may be much more
violent than conditions assumed in the above methods. These
circumstances need to be identified, as larger vent areas
are required.
Explosions, when they occur, should be vented direct to atmosphere.
The discharge must be to a safe place and
may require a duct. The length and configuration of duct may
significantly affect the relief and must be taken into account
when calculating vent area.
Elfab are able to offer advice on the application and sizing
of explosion vents, based upon many years of experience and
involvement in the latest developments in this field. |
Flo-Tel™ Detection
Elfab is unique in supplying a burst panel detection, ATEX approved
to category II
1GD EEx ia IIC. EC-Type Examination Certificate ITS03 ATEX 11359,
as standard with its panels. (Must be connected to an intrinsically
safe circuit)
ELECTRICAL INFORMATION |
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TEMPERATURE LIMITS |
Panel Flo-Tel™ should
be connected to an Intrinsically safe supply that is compatible
with values:
Ui = 30v.
Ii = 100mA.
Pi = 0.75W.
Supplied with a 2m cable.
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-100°C to 200°C |
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Pressure Intelligence
The data shown on these sheets represents
the standard offering from Elfab. Depending upon the requirements of your
application, Elfab maybe able to provide a solution based on this product
but outside the standard operating parameters. In addition, Elfab produces
an extensive range of alternative products which maybe more suitable for
your requirements.
As a result of extensive testing, Elfab can advise on these choices, or
on other technical matters, such as discharge requirements, temperature
testing, material selection and corrosion resistance, customised designs
and burst detection.
To discuss your specific product or service requirements please
contact your Elfab representative.
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© 2004 Elfab Ltd.
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