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The original rupture disk (bursting disc) manufacturer shaping the growth of pressure relief devices for over 75-years.




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Products > Rupture Disks > Reverse Buckling Disks
 

FRB Low Pressure Reverse Buckling Rupture Disk (Bursting Disc)


The most advanced rupture disk (bursting disc) technology provides a reverse bucklng style disk in sizes less than 1 inch (25mm) and in extremely low pressures. The reliable and accurate performance of the FRB makes it ideal for applications in the Aircraft, Defense and OEM Industries.

Features

 Standard sizes: 1/4", 3/8", 1/2" (6.4,9.5,13mm)

  •  Pressure Ratings from 35 psid (2.41 bard) to 700 psid (48.28 bard)
  • Opens along Circular Score
  • Compression loaded, reverse buckling disk
  • Standard materials: 316ss, Nickel 200, lnconel 600

Benefits

  • Lowest possible burst pressure ratings available in small diameters
  • Can operate up to 80% of its rated burst pressure
  • Superior performance in cycling service
  • Full opening in either gas or liquid service"
  • Accurate and reliable burst ratings
  • Minimal or no fragmentation
  • Withstands full vacuum without extra support. 
  • Various holders designs are available to meet your application.

Typical Applications

  • Lithium Batteries
  • Fire Extinguisher
  • Compressed Gas Cylinders
  • Refrigeration Units
  • Aerospace Missiles
  • Aircraft Wheels

FRB® Rupture Disk (Bursting Disc) Selection Data

Pressure Ratings at 72º F (22º C) For Gas or Vapor Service
DISK MATERIAL*
DISK SIZE
NICKEL 200
  INCONEL 600     
 316SS
  MIN MAX MIN MAX MIN MAX
IN
MM
PSID  BARD PSID
BARD 
PSID 
 BARD  PSID  BARD 
PSID 
BARD
PSID 
BARD
1/4
6.4
100
6.89
450
31.03
150
10.34
700 48.28
150
10.34
700
48.28
3/8
9.5
50
3.45
400
27.59
60
4.14
650 44.83
60
4.14
650
44.83
1/2
13
35
2.41
200
13.79
45
3.10
450 31.03
45
3.10
450
31.03

Pressure Ratings at 72°F (22° C) For Liquid Service
DISK MATERIAL*
DISK SIZE
NICKEL 200
INCONEL 600        316 SS
  MIN  MAX MIN  MAX MIN MAX
IN
MM
PSID BARD
PSID
BARD
PSID BARD PSID
BARD
PSID 
BARD
PSID
BARD
1/4
6.4
250
17.24
450
31.03
250
17.24
700 48.28 
250
17.24
700
48.28
3/8
9.5
150
10.34
400
27.59 
150
10.34
650 44.83 
150
10.34
650
44.83
1/2
13
80
5.52
200
13.79
80
5.52
450 31.03 
80
5.52
450 
31.03

* Consult factory for material and burst pressure availability.

Engineering Information

  •  Burst rating must be specified within the defined min/max pressures
  •  Consult factory for a burst range applicable to a specific burst pressure 
  •  Minimum and maximum pressure ratings are applicable at 72°F (22° C)

NOTE
Recommended maximum temperature for each metal is:

Metal
°F
°C
Nickel 200
750 
399
InconeI600
900
482
316SS
900
482 

Disk Dimensions

 NOMINAL SIZE INCHES
"A"
"B"**
"C"
"D"
FLOW
DIAMETER
OUTSIDE
DIAMETER
INSIDE
DIAMETER
MAXIMUM
HEIGHT
1/4
.215
.550
.315
.030
3/8
.350
.935
.500
.050
1/2
.525
.935
.750
.060

**Consult factory over other available diameters.

NOTE: Products, specifications, and all data in this literature are subject to change without notice. Questions regarding product selection and specifications for specific applications should be directed to BS&B, Attn: Customer Service Department.