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Opti Gard Solo Title
(Patent Pending)

Opti Gard Solo Main Image

The new Opti-Gard™ SoLo is a unique, 1 piece solid metal, reverse acting bursting disc, specifically designed for low pressure applications, from 2 psig.

The innovative design combines an original geometric shape with a unique manufacturing process, offering a 95% operating to burst pressure ratio with a performance tolerance of 3 %. Tested to over 100,000 cycles, Opti-Gard™ SoLo offers the highest performance characteristics available for liquid, gas or vapour, making it the most technically advanced low pressure reverse bursting disc on the market.

Opti-Gard™ SoLo comes pre-fitted with Integral Flo-Tel ™, Elfab’s advanced and reliable non-invasive magnetic detection system. The disc fits all standard Elfab Opti-Gard and Hygienic Opti-Gard™ holders and is supplied in corrosion resistant Hastelloy as standard.

With the addition of SoLo, the Elfab Opti-Gard™ range now delivers the opportunity to rationalise stock holdings by up to 65%.

  • Specifically designed for low pressure applications-reaching as low as 2 psig
  • Liquid, gas and vapour compatible
  • Non-fragmenting design
  • Highest available operating ratio
  • Industry-leading 3% performance tolerance
  • Excellent leak tightness
  • Approved to a wide range of global standards
  • Comes fitted with ATEX approved integral Flo-Tel™ burst detection
  • Manufactured in Hastelloy
  • Patented geometric shape
  • Full vacuum service
  • Standard 1-week lead time
 
Specifications
SIZE RANGE
25mm to 300mm (1” to 12”)
BURST PRESSURE RANGE
2 psig to 70 psig (0.14barg to 4.8barg)
TEMPERATURE RANGE
-80 to 480°C (-112 to 900°F)
MAXIMUM OPERATING RATIO
95%
FRAGMENTATION ON BURST
Non-fragmenting design
RELIEF VALVE ISOLATION
Excellent
VACUUM SERVICE
Suitable for full vacuum
FLUID COMPATIBILITY
Liquid, gas or vapour
KRVALUES
  
TORQUE-SENSITIVE
No
CYCLE LIFE
tested to over 100,000 pressure vacuum cycles*
MATERIAL RANGE
Hastelloy as standard, stainless steel, others available on request
REVERSAL RATIO
Not applicable with offset tag +system-loc
DAMAGE RATIO
Fail safe
LEAK TIGHTNESS
Excellent
PERFORMANCE TOLERANCE
+/- 3% (zero manufacturing design range)
*from full vacuum to 95% of the minimum burst pressure

Pressure Intelligence
To find out how the Opti-Gard™SoLo system could benefit you and your organisation, or for specifications outside those stated on this data sheet please contact Elfab directly or via your local representative.

Specifications and Performance

BURST PRESSURE RANGE in barg(psig) at 20°C (68°F)
Nominal Bore
Hastelloy
Stainless Steel
mm
inch
Minimum
Maximum
Minimum
Maximum
25
1
0.83 (12)
4.83 (70)
0.69 (10)
4.83 (70)
40
1 ½
0.48 (7)
4.14 (60)
0.41 (6)
4.14 (60)
50
2
0.41 (6)
3.45 (50)
0.34 (5)
3.45 (50)
65
2 ½
0.38 (5.5)
3.10 (45)
0.31(4.5)
3.10 (45)
80
3
0.28 (4)
2.41 (35)
0.21 (3)
2.41 (35)
100
4
0.14 (2)
2.07 (30)
0.14 (2)
2.07 (30)
150
6
0.28 (4)
2.07 (30)
0.28 (4)
2.07 (30)
200
8
0.28 (4)
2.07 (30)
0.28 (4)
2.07 (30)
250
10
0.28 (4)
2.07 (30)
0.28 (4)
2.07 (30)
300
12
0.28 (4)
2.07 (30)
0.28 (4)
2.07 (30)

PERFORMANCE TOLERANCE(ZERO MANUFACTURING DESIGN RANGE)
Burst Pressure
Tolerance
Burst Pressure
Tolerance
0.14-0.97barg
+/-0.07barg
2-14psig
+/-1.0psig
Above 0.97 - 4.48 barg
+/- 0.14 barg
Above 14- 65 psig
+/- 2.0 psig
Above 4.48 barg
+/- 3%
Above 65 psig
+/- 3%

STANDARD TEMPERATURE RANGE °C(°F)
Material
Minimum
Maximum
Hastelloy
-80(-112)
480(900)
Stainless Steel
-80(-112)
480(900)
Fluoropolymer
-80(-112)
280(536)

FREE FLOW AREA / MINIMUM NET FLOW AREA (MNFA)
Nominal Bore
Burst Pressure at or Below 10barg(145psig)
   
Without Vacuum Support
With Vacuum Support
mm
inch
mm2
in2
mm2
in2
25
1
583
0.91
414
0.64
40
1 ½
1261
1.96
867
1.35
50
2
2142
3.34
1471
2.29
65
2 ½
3156
4.92
2074
3.23
80
3
5182
8.07
3805
5.46
100
4
8219
12.80
5658
8.81
150
6
16978
26.45
11806
18.39
200
8
32670
50.88
23235
36.19
250
10
47396
73.83
33948
52.88
300
12
68871
107.28
49413
76.97

 

HOLDER DIMENSIONS
Nominal Bore(B)
Height(C)
Outside Diameter(A)
mm
inch
mm
inch
BS EN 1092
ANSI
25
1
40
1.57
PN 6 to 50
150 to 600 lb
40
1 ½
42
1.65
PN 6 to 50
150 to 600 lb
50
2
44
1.73
PN 6 to 50
150 to 600 lb
65
2 ½
49.6
1.95
PN 6 to 50
150 to 600 lb
80
3
55
2.17
PN 6 to 50
150 to 600 lb
100
4
58
2.28
PN 6 to 50
150 to 600 lb
150
6
74
2.91
PN 6 to 50
150 to 600 lb
200
8
91
3.58
PN 6 to 50
150 to 600 lb
250
10
106
4.17
PN 6 to 50
150 to 600 lb
300
12
121
4.76
PN 6 to 50
150 to 600 lb
350
14
158
6.22
PN 6 to 50
150 to 600 lb
400
16
179
7.05
PN 6 to 50
150 to 600 lb
450
18
195
7.68
PN 6 to 50
150 to 600 lb
500
20
214
8.43
PN 6 to 50
150 to 600 lb
600
24
251
9.88
PN 6 to 50
150 to 600 lb




Opti Gard Solo Schematics

The holder is machined with Excess Flow Valve tapping and is configured to accept Elfab’s ATEX-approved Integral Flo-Tel burst detection switch as standard.

To ensure the correct performance of a bursting disc, it must be used in its correct holder, as specified by the bursting disc manufacturer.

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.

© 2004 Elfab Ltd.

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