| Specifications |
| SIZE RANGE |
2 to 10 (50mm
to 250 mm) |
| BURST PRESSURE
RANGE |
30 psig to 1015
psig (2.0 barg to 70 barg) |
| TEMPERATURE RANGE |
-330 to 400F (-200
to 200C) |
| MAXIMUM OPERATING
RATIO |
95% |
| FRAGMENTATION ON
BURST |
Non-fragmenting
design |
| RELIEF VALVE ISOLATION |
Excellent |
| VACUUM SERVICE |
Suitable |
| FLUID COMPATIBILITY |
Liquid, gas or
vapor |
| TORQUE-SENSITIVE |
No |
| CYCLE LIFE |
Excellent |
| MATERIAL RANGE |
Good |
| REVERSAL RATIO |
Not applicable
with offset tag + System-Loc |
| DAMAGE RATIO |
<1 (fail-safe) |
| LEAK TIGHTNESS |
Excellent |
| PERFORMANCE TOLERANCE |
5%*(with no manufacturing
range) |
| PROTECTIVE LININGS |
Available |
Pressure and Solutions Intelligence
Elfab is an ISO 9001:2000 Certified Company and all Elfab’s
rupture discs are manufactured in-house to the highest standards.
To ensure the correct performance of a rupture disc, it must
be used in its correct holder, as specified by the rupture
disc manufacturer.
As the temperature seen by a rupture disc changes its burst
pressure and performance will change. As a result of extensive
testing, Elfab can advise on these changes, or on other technical
matters, such as discharge requirements, material selection,
corrosion resistance, customized designs and burst detection.
Specifications and Performance
| BURST PRESSURE
RANGE in psig (barg) at 68 °F (20 °C) |
| Nominal Size |
Nickel |
Stainless Steel/ Inconel |
| inches |
mm |
min |
max |
min |
max |
| 2 |
50 |
72.5 (5.0) |
580 (40) |
102 (7.0) |
1015 (70) |
| 3 |
80 |
65.3 (4.5) |
363 (25) |
87 (6.0) |
508 (35) |
| 4 |
100 |
50.8 (3.5) |
290 (20) |
65.3 (4.5) |
363 (25) |
| 6 |
150 |
36.3 (2.5) |
247 (17) |
43.5 (3.0) |
290 (20) |
| 8 |
200 |
36.3 (2.5) |
218 (15) |
43.5 (3.0) |
218 (15) |
| 10 |
250 |
29 (2.0) |
145 (10) |
36.3 (2.5) |
174 (12) |
| PERFORMANCE
TOLERANCE (ZERO MANUFACTURING DESIGN RANGE) |
| Burst Pressure |
Tolerance |
| Entire Range |
+/- 5% |
| Material Temperature
Limits °F (°C) |
| Material |
Minimum |
Maximum |
| Stainless Steel |
-112 (-80) |
900 (480) |
| Inconel |
-112 (-80) |
1112 (600) |
| Nickel |
-112 (-80) |
750 (400) |
| Fluoropolymer Liner |
-112 (-80) |
536 (280) |
| FREE FLOW AREA
/ MINIMUM NET FLOW AREA (MNFA) |
| Nominal Size |
Burst Pressure
at or Below 145psig (10barg) |
Burst Pressure
Above 145psig (10barg) |
| inches |
mm |
inch2 |
mm2 |
inch2 |
mm2 |
| 2 |
50 |
2.97 |
1918 |
2.94 |
1897 |
| 3 |
80 |
7.12 |
4594 |
7.35 |
4744 |
| 4 |
100 |
11.04 |
7125 |
11.42 |
7366 |
| 6 |
150 |
23.90 |
15421 |
24.93 |
16086 |
| 8 |
200 |
41.62 |
26853 |
43.71 |
28201 |
| 10 |
250 |
60.47 |
39013 |
63.71 |
41102 |
| HOLDER DIMENSIONS |
| Nominal Size B |
Height C |
Outside Diameter
A |
| inches |
mm |
inches |
mm |
BS EN 1092 |
ANSI |
| 2 |
50 |
2.13 |
54 |
PN 6 to 50 |
150 to 600lb |
| 3 |
80 |
3.23 |
82 |
PN 6 to 50 |
150 to 600lb |
| 4 |
100 |
3.94 |
100 |
PN 6 to 50 |
150 to 600lb |
| 6 |
150 |
5.75 |
146 |
PN 6 to 50 |
150 to 600lb |
| 8 |
200 |
8.90 |
226 |
PN 6 to 50 |
150 to 600lb |
| 10 |
250 |
9.84 |
250 |
PN 6 to 50 |
150 to 600lb |
|
