he Type D Composite Bursting Disc consists of a slotted
metal top section and a plastic or metal seal membrane located at the concave
or pressure side of the top section. The top section is the pressure zone and
controls bursting rating of disc. Since the top section has open slots, the
seal isolates it from process media and prevents leakage. Like the Type B Solid
Metal Bursting Disc, the Type D composite disc is dome-shaped with an angular
seating arrangement. Pressure is applied to dished or concave side, subjecting
disc metal to tension loading.
Seal material in the Type D bursting disc is thin and subject
to damage by a foreign substance on seating surfaces or flanges. It may be
desirable to use a heavier gauge metal ring permanently mounted to the seat
area of the plastic or metal seal. This assembly is called Type DR bursting
disc. When two rings are used, the assembly is called Type DRR bursting discs.
When vacuum is involved-in any amount the seal MUST have a
structural support. Standard support for Type D discs is the same as that used
with Type B discs, a domed structure with pie shaped segments or a laser cut
single piece construction, depending upon size and pressure rating. Support is
mated to upstream or pressure side of seal. All three components are
permanently attached. This assembly is called Type DV bursting disc.
When a DV disc is specified and high vacuum is involved-in
the micron range a soft gasket ring should be applied to the seat of support on
the process side. This assembly is called Type DSV bursting disc. If a DR ring
is also attached to the atmospheric side of the disc, the assembly is called
Type DRSV.
When it is desirable to protect the metal top section of a
Type D disc from contaminants in a valve, header, piping, or atmosphere; a
plastic liner can be attached on the convex side. This assembly is called a PLD
bursting disc. A plastic liner covering and isolating a built-in support from
process media becomes a PLDV bursting disc. In severe applications, metal
exposure may not be desirable, hence the plastic covering.
Specifications
Available Sizes
Types D. DV, DR and DRSV
Full range: l' thru 44'
Standard sizes: l'thru 30'
Type PLD:
Full range@ l' thru 44'
Standard sizes: l' thru 24'
Type PLDV.
Standard sizes: l' thru 24' (full range)
Pressure
Full range: 0.5 to 2000 psi 0 72'F (22-C) Minimum/maximum
pressures for standard sizes
and combinations of disc materials: See pages 3 thru 8.
Temperature
FEP plastic seal: -40'F (-40'C) to 400'F (204'C) maximum
TFE plastic seal: -40'F (-40'C) to 500'F (260'C) maximum
Metal seal: -320'F (-196'C) to1000'F(538-C)
Cycle life for 'D' discs may be greatly reduced
at temperatures lower than -40'F (-4o'(1)
Top Section
Standard metals: 3l6 SS, lnconel/Alloy 600, Nickel/ Alloy
200, Monel/Alloy 400
Special metals: Hastelloy C-276/Alloy C-276, Titanium and Tantalum
Seal
Standard materials: FEP plastic, TFE plastic, 316 SS,
Nickel/Alloy 200, Inconel/Alloy 600, Monel/Alloy 400, Hastelloy C-276/Alloy
C-276, Silver, Aluminum
Special metals: Platinum, Titanium and Tantalum
Vacuum Support
Standard metal: 316 SS, lnconel/Alloy 600, Nickel/Alloy 200,
Monel/Alloy 400
Special Hastelloy C-276/Alloy C-276, Titanium, Tantalum
Protective Standard metal: 316 SS. Inconel/Alloy 600,
ring' Monel/Alloy 400, Nickel/Alloy 200
Special: Hastelloy C-276/Alloy C-276, Titanium, Tantalum
Soft Gasket Ring
Standard metal for metal seal: Aluminum Standard material
for plastic seal: FEP plastic
*When to use Protective Ring:
16'-24' 15 psig or less
Composite bursting discs for Bolted Flange and Union Type
Safety Heads
BS&B Bolted and Union Type Safety Heads both require
bursting discs with angular seating design. All standard discs with angular
seating are listed on the following pages. Listing is by sizes with a full
selection of standard discs for each size.
Minimum and maximum pressures for each disc are shown in
psig @ 72' F. and kg/cm2 @ 22' C. Maximum temperatures are shown in 'F. and 'C.
Tolerances
Normal Bursting Tolerances for Type D Series Composite
discs:
Manufacturing Ranges
Manufacturing Ranges for Composite discs:
| DESIRED PRESSURE RATING | TEST SPECIMENS MUST Bursting WITHIN LIMITS BELOW THE PRESSURE YOU SPECIFY |
| PSIG | PLUS | MINUS |
| 2 1/2 - 3 1/2 | 1 PSIG | 1 PSIG |
| 4 -6 | 2 PSIG | 1 PSIG |
| 7-10 | 2/12 PSIG | 1 1/2 PSIG |
| 11-16 | 3 PSIG | 2 PSIG |
| 17-25 | 4 PSIG | 2 PSIG |
| 26-40 | 5 PSIG | 3 PSIG |
| 41-65 | 6 PSIG | 4 PSIG |
| 66-100 | 9 PSIG | 5 PSIG |
| 101-150 | 12 PSIG | 6 PSIG |
| 151-200 | 16 PSIG | 9 PSIG |
| 201-350 | 23 PSIG | 12 PSIG |
| 351-500 | 30 PSIG | 15 PSIG |
| 501-&UP | 6 PCT. | 3 PCT. |
| DESIRED PRESSURE RATING | TEST SPECIMENS MUST Bursting WITHIN LIMITS BELOW THE PRESSURE YOU SPECIFY |
| Kg/CM2 | PLUS | MINUS |
| .176 - .246 | .070 Kg/CM2 | 070 Kg/CM2 |
| .281 - .422 | .141 Kg/CM2 | .070 Kg/CM2 |
| .49 - .70 | .211 Kg/CM2 | .105 Kg/CM2 |
| .77 - 1.13 | .281Kg/CM2 | .141 Kg/CM2 |
| 1.20 - 1.76 | .352Kg/CM2 | .141 Kg/CM2 |
| 1.83 - 2.81 | .352 Kg/CM2 | .211 Kg/CM2 |
| 2.88 - 4.57 | .422 Kg/CM2 | .281 Kg/CM2 |
| 4.64 - 7.03 | .633Kg/CM2 | .352 Kg/CM2 |
| 7.10 - 10.55 | .844 Kg/CM2 | .422 Kg/CM2 |
| 10.62 - 14.06 | 1.125 Kg/CM2 | .633 Kg/CM2 |
| 14.14 - 24.61 | 1.617 Kg/CM2 | .844 Kg/CM2 |
| 24.68 - 35.16 | 2.11 Kg/CM2 | 1.055 Kg/CM2 |
| 35.23 & Up | 6 PCT. | 3 PCT. |
1" Composite discs: Types D, DV, DR, DRR, DSV, DRSV,
PLD, PLDV
If Type D, DR or PLD disc will be exposed to vacuum, specify
DV, DRV, DSV, DRSV or PLDV. Standard materials for vacuum support are 316 SS,
lnconel/Alloy 600, Monel/Alloy 400, and Nickel/Alloy 200. Special materials are
Hastelloy C-276/Alloy C-276, Titanium and Tantalum.
Standard material for protective ring with DR discs is 316
SS. Other metals available.
TFE plastic for seals is standard from 1" through
8" size. FEP plastic for seals is standard for 10" and larger except
when temperature is over 400' F. (204'C), or pressures are less than available
with TFE.
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 89
6.26 | 1000
70.3 | 400
204 | 130
9.1 | 1000
70.3 | 400
204 | 300
21.1 | 1000
70.3 | 230
16.2 | 600
42.2 | 400
204 |
| TFE | 44
3.09 | 1000
70.3 | 500
260 | 87
6.12 | 1000
70.3 | 500
260 | 300
21.1 | 1000
70.3 | 230
16.2 | 600
42.2 | 500
260 |
| ALUMINUM | 50
3.52 | 1600
112.5 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 110
7.7 | 2000
140.7 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 180
12.7 | 2000
140.7 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 220
15.5 | 2000
140.7 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 285
20.0 | 2000
140.7 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 400
28.1 | 2000
140.7 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 680
47.8 | 2000
140.7 | 1000
538 | - | - | - | - | - | - | - | - |
11/2" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 63
4.43 | 700
49.2
| 400
204 | 92
6.47 | 700
49.2 | 400
204 | 140
9.9 | 700
49.2 | 105
7.4 | 450
31.7 | 400
204 |
| TFE | 31
2.18 | 700
49.2 | 500
260 | 61
4.29 | 700
49.2 | 500
260 | 140
9.9 | 700
49.2 | 105
7.4 | 450
31.7 | 500
260 |
| ALUMINUM | 33
2.32 | 1300
91.4 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 73
5.13 | 1400
98.5 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 120
8.4 | 1400
98.5 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 145
10.2 | 1400
98.5 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 185
13.0 | 1400
98.5 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 265
18.6 | 1400
98.5 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 450
31.7 | 1400
98.5 | 1000
538 | - | - | - | - | - | - | - | - |
2" Composite discs: Types D, DV, DR, DRR, DSV, DRSV,
PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 31
2.18 | 555
39.0
| 400
204 | 45
3.16 | 555
39.0 | 400
204 | 100
7.03 | 555
39.0 | 75
5.27 | 395
27.8 | 400
204 |
| TFE | 15
1.05 | 555
39.0 | 500
260 | 30
2.11 | 555
39.0 | 500
260 | 100
7.03 | 555
39.0 | 75
5.27 | 395
27.8 | 500
260 |
| ALUMINUM | 20
1.41 | 960
67.5 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 43
3.02 | 1100
77.4 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 69
4.85 | 1100
77.4 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 84
5.91 | 1100
77.4 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 109
7.7 | 1100
77.4 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 150
10.6 | 1100
77.4 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 260
17.6 | 1100
77.4 | 1000
538 | - | - | - | - | - | - | - | - |
3" Composite discs: Types D, DV, DR, DRR, DSV, DRSV,
PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 25
1.76 | 450
31.7
| 400
204 | 32
2.25 | 450
31.7 | 400
204 | 65
4.57 | 450
31.7 | 45
3.16 | 315
22.2 | 400
204 |
| TFE | 11
.77 | 450
31.7 | 500
260 | 21
1.48 | 450
31.7 | 500
260 | 65
4.57 | 450
31.7 | 45
3.16 | 315
22.2 | 500
260 |
| ALUMINUM | 15
1.05 | 730
51.3 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 32
2.25 | 650
45.7 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 52
3.66 | 900
63.3 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 62
4.36 | 900
63.3 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 79
5.56 | 900
63.3 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 115
8.1 | 900
63.3 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 195
13.7 | 900
63.3 | 1000
538 | - | - | - | - | - | - | - | - |
4" Composite discs: Types D, DV, DR, DRR, DSV, DRSV,
PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 19
1.34 | 415
29.2
| 400
204 | 24
1.69 | 415
29.2 | 400
204 | 60
4.22 | 415
29.2 | 35
2.46 | 300
21.1 | 400
204 |
| TFE | 8
.56 | 415
29.2 | 500
260 | 16
1.13 | 415
29.2 | 500
260 | 60
4.22 | 415
29.2 | 35
2.46 | 300
21.1 | 500
260 |
| ALUMINUM | 12
.84 | 630
44.3 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 24
1.69 | 600
42.2 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 39
2.74 | 830
58.4 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 47
3.31 | 830
58.4 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 60
4.22 | 830
58.4 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 85
5.98 | 830
58.4 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 145
10.2 | 830
58.4 | 1000
538 | - | - | - | - | - | - | - | - |
6" Composite discs: Types D, DV, DR, DRR, DSV, DRSV,
PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 13
.91 | 320
22.5
| 400
204 | 18
1.27 | 320
22.5 | 400
204 | 75
5.27 | 320
22.5 | 45
3.16 | 225
15.8 | 400
204 |
| TFE | 6
.42 | 320
22.5 | 500
260 | 12
.84 | 320
22.5 | 500
260 | 75
5.27 | 320
22.5 | 45
3.16 | 225
15.8 | 500
260 |
| ALUMINUM | 9
.63 | 485
34.1 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 18
1.27 | 500
35.2 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 29
2.04 | 640
45.0 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 35
2.46 | 640
45.0 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 45
3.16 | 640
45.0 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 64
4.50 | 640
45.0 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 110
7.7 | 640
45.0 | 1000
538 | - | - | - | - | - | - | - | - |
8" Composite discs: Types D, DV, DR, DRR, DSV, DRSV,
PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 11
.77 | 295
20.8
| 400
204 | 16
1.13 | 295
20.8 | 400
204 | 75
5.27 | 295
20.8 | 55
3.87 | 200
14.1 | 400
204 |
| TFE | 5
.35 | 295
20.8 | 500
260 | 11
.77 | 295
20.8 | 500
260 | 75
5.27 | 295
20.8 | 55
3.87 | 200
14.1 | 500
260 |
| ALUMINUM | 7
.49 | 420
29.5 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 14
.98 | 400
28.1 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 23
1.62 | 590
41.5 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 28
1.97 | 590
41.5 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 35
2.46 | 590
41.5 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 50
3.52 | 590
41.5 | 1000
538 | - | - | - | - | - | - | - | - |
HASTELLOY B OR
C-276/ALLOY C-276 | 85
5.98 | 590
41.5 | 1000
538 | - | - | - | - | - | - | - | - |
10" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 7
.49 | 240
16.9
| 400
204 | 14
.98 | 240
16.9 | 400
204 | 60
4.22 | 240
16.9 | 35
2.46 | 160
11.3 | 400
204 |
| TFE | 4
.28 | 240
16.9 | 500
260 | 9
.63 | 240
16.9 | 500
260 | 60
4.22 | 240
16.9 | 35
2.46 | 160
11.3 | 500
260 |
| ALUMINUM | 5
.35 | 340
23.9 | 800
427 | - | - | - | - | - | - | - | - |
| SILVER | 12
.84 | 200
14.1 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 18
1.27 | 480
33.8 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 22
1.55 | 480
33.8 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 28
1.97 | 480
33.8 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 38
2.67 | 480
33.8 | 1000
538 | - | - | - | - | - | - | - | - |
12" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 200
14.1
| 400
204 | 10
.70 | 200
14.1 | 400
204 | 45
3.16 | 200
14.1 | 30
2.11 | 140
9.9 | 400
204 |
| TFE | 3
.21 | 200
14.1 | 500
260 | 6
.42 | 200
14.1 | 500
260 | 45
3.16 | 200
14.1 | 30
2.11 | 140
9.9 | 500
260 |
| ALUMINUM | 5
.35 | 290
20.4 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 15
1.05 | 400
28.1 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 19
1.34 | 400
28.1 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 24
1.69 | 400
28.1 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 34
2.39 | 400
28.1 | 1000
538 | - | - | - | - | - | - | - | - |
14" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 170
12.0
| 400
204 | 10
.70 | 170
12.0 | 400
204 | 40
2.81 | 170
12.0 | 30
2.11 | 120
8.4 | 400
204 |
| TFE | 3
.21 | 170
12.0 | 500
260 | 6
.42 | 170
12.0 | 500
260 | 40
2.81 | 170
12.0 | 30
2.11 | 120
8.4 | 500
260 |
| ALUMINUM | 4
.28 | 270
19.0 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 14
.98 | 350
24.6 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 17
1.20 | 350
24.6 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 22
1.55 | 350
24.6 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 29
2.04 | 350
24.6 | 1000
538 | - | - | - | - | - | - | - | - |
16" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 150
10.6
| 400
204 | 10
.70 | 150
10.6 | 400
204 | 35
2.46 | 150
10.6 | 25
1.76 | 105
7.4 | 400
204 |
| TFE | 3
.21 | 150
10.6 | 500
260 | 6
.42 | 150
10.6 | 500
260 | 35
2.46 | 150
10.6 | 25
1.76 | 105
7.4 | 500
260 |
| ALUMINUM | 4
.28 | 250
17.6 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 12
.84 | 300
21.1 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 14
.98 | 300
21.1 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 19
1.34 | 300
21.1 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 25
1.76 | 300
21.1 | 1000
538 | - | - | - | - | - | - | - | - |
18" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 135
9.5
| 400
204 | 10
.70 | 135
9.5 | 400
204 | 35
2.46 | 150
10.6 | 25
1.76 | 90
7.4 | 400
204 |
| TFE | 3
.21 | 135
9.5 | 500
260 | 6
.42 | 135
9.5 | 500
260 | 35
2.46 | 150
10.6 | 25
1.76 | 90
7.4 | 500
260 |
| ALUMINUM | 4
.28 | 225
15.8 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 10
.70 | 270
19.0 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 13
.91 | 270
19.0 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 17
1.20 | 270
19.0 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 23
1.62 | 270
19.0 | 1000
538 | - | - | - | - | - | - | - | - |
20" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 120
8.4
| 400
204 | 10
.70 | 120
8.4 | 400
204 | 35
2.46 | 150
10.6 | 25
1.76 | 90
7.4 | 400
204 |
| TFE | 3
.21 | 120
8.4 | 500
260 | 6
.42 | 120
8.4 | 500
260 | 35
2.46 | 150
10.6 | 25
1.76 | 80
7.4 | 500
260 |
| ALUMINUM | 3
.21 | 200
14.1 | 800
427 | - | - | - | - | - | - | - | - |
| NICKEL/ALLOY200 | 10
.70 | 240
16.9 | 1000
538 | - | - | - | - | - | - | - | - |
| MONEL/ALLOY/400 | 12
.84 | 240
16.9 | 1000
538 | - | - | - | - | - | - | - | - |
| INCONEL/ALLOY600 | 15
1.05 | 240
16.9 | 1000
538 | - | - | - | - | - | - | - | - |
| 316 SS | 20
1.41 | 240
16.9 | 1000
538 | - | - | - | - | - | - | - | - |
24" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV | PLD DISCS | PLDV DISCS |
| TOP SECTION MATERIAL | CENTER SECTION MATERIAL | CENTER SECTION MATERIAL |
| INCONEL 316 SS | 316 SS | 316 SS | NICKEL | ALL MATERIALS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MAX. TEMP. | MIN. PRES. | MAX. PRES. | MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 100
7.03
| 400
204 | 10
.70 | 100
7.03 | 400
204 | 35
2.46 | 150
10.6 | 25
1.76 | 90
7.4 | 400
204 |
| TFE | 3
.21 | 100
7.03 | 500
260 | 6
.42 | 100
7.03 | 500
260 | 35
2.46 | 150
10.6 | 25
1.76 | 80
7.4 | 500
260 |
| ALUMINUM | 3
.21 | 170
12.0 | 800
427 | - | - | - | - | - | - | - | - |
| 316 SS | 70
4.92 | 200
14.1 | 1000
538 | - | - | - | - | - | - | - | - |
30" Composite discs: Types D, DV, DR, DRR, DSV,
DRSV, PLD, PLDV
| SEAL MATERIAL | D,DV,DR,DRR,DSV,DRSV |
| TOP SECTION MATERIAL |
| INCONEL 316 SS |
| MIN. PRES. | MAX. PRES. | MAX. TEMP. |
| FEP | 5
.35 | 80
5.63
| 400
204 |
| TFE | 3
.21 | 80
5.63 | 500
260 |
| ALUMINUM | 3
.21 | 140
9.9 | 800
427 |
| 316 SS | 56
3.94 | 170
12.0 | 1000
538 |
BS&B Type TC Bursting disc* for railroad tank car
service is designed to conform with ICC Regulations. The highly accurate disc
is adaptable to standard threaded or bolted type tank car fittings. If
dimensions of tank car fittings are different from the ones shown below,
BS&B will design a special disc on request.The pressure zone of the TC disc
is the slotted top section. Fluoropolymer seal isolates top section from
contents of the tank. The vacuum support prevents excessive downward movement
of the seal should the disc be subjected to vacuum during unloading or while
car is in transit. The vacuum support also protects the disc when car is in
transit or being "humped."
The tank car ring located on the atmospheric side of the
disc protects the controlled pressure zone of the disc even though the I.D.
dimensions of tank car fitting are not within fixed tolerances