PRESS RELEASES
*Elfab’s unique Flo-Tel™ System ensures Bucket Elevator Manufacturers and Users Comply with latest ATEX Legislation
NEW SLIMLINE GRAPHITE DISC FEATURES DETECTION AS STANDARD
NEW LOW-PRESSURE BURSTING DISC DELIVERSINDUSTRY-LEADING PERFORMANCE
*Elfab Product Information*
Detection Now Standard on
all Main Product Lines
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Products > Detection > Burst Tel (BT)
 
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 Installation Guide
 
(Previously known as BT/BTS)
Burst-Tel provides a simple and effective means of identifying when a rupture disc functions. It comprises a polyamide membrane onto which is bonded an insulated, electrically conductive path mounted between supporting rings.

Installed on the vent side of the rupture disc device, Burst-Tel is activated by fluid flow when the rupture disc functions, causing the conductive path to break and give an open-circuit signal. Following the disc burst, Burst-Tel is simply replaced along with the rupture disc.

 
  • Instant pressure relief detection
  • Suitable for many installations
  • Easy installation
  • ATEX approved to category 1 II 1GD EEx ia IIB.T3T6
Burst-Tel can be compatible with rupture disc devices from other manufacturers, whether manufactured from graphite or metal, and can be used with other relief devices. Retrofitting is easily achieved as the nominal thickness of the Burst-Tel assembly is only (1/8) (3mm) for rupture discs up to 4 (100mm) and 1(3/8) (10mm) above 4 (100mm) nominal size, with exfoliated graphite membrane. When installing a Burst-Tel it must not contact the dome of the disc. A Burst Tel must be connected to an intrinsically safe supply.
 
MINIMUM OPERATING PRESSURE at 68 °F (20 °C)
Nominal Bore inches
mm
1
25
1 ½
40
2
50
2 ½
65
3
80
4
100
6
150
8
200
10
250
12
300
14
350
16
400
18
450
20
500
Thick- ness
(inches)
mm
(1/8)
3
(1/8)
3
(1/8)
3
(1/8)
3
(1/8)
3
(1/8)
3
(3/8)
10
(3/8)
10
(3/8)
10
(3/8)
10
(3/8)
10
(3/8)
10
(3/8)
10
(3/8)
10
Min. Pressure
psig
barg
10
0.70
7
0.48
4
0.28
3
0.21
3
0.21
2
0.14
1
0.10
1
0.07
1
0.07
1
0.07
1
0.07
1
0.07
1
0.07
1
0.07
 
ELECTRICAL INFORMATION
TEMPERATURE LIMITS
Maximum resistance before bursting: 30 Ohms
Maximum circuit voltage: 25V
Maximum current: 125mA
Supplied with a 2-meter cable
-4°F (-20°C) to 347°F (175°C)


Solution 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, customized designs and burst detection.

To discuss your specific product or service requirements please contact your Elfab representative.

© 2004 Elfab Ltd.