Weir SPM, Operation Instruction And Service Manual

Page: 14 / 16

Document P/N: 2A43495
Release Date: 02/27/2018
Revision: IR
14 of 16
Rupture Disc Flow Rates Reference:
The following chart and graph represent the pressure and flow rates for the pressure disc per manufacturing
standards. It is important to adhere to these values to ensure the appropriate disc is used. Please note that the
lowest rupture disc is a minimum pressure of 2500 PSI
Pressure
(PSI)
2" Rupture
Discs
3" Rupture
Discs
GPM BPM GPM BPM
15,000 1,032 24.6
2,989 71.2
14,500 1,011 24.1
2,938 70
14,000 994 23.7
2,887 68.7
13,500 976 23.2
2,835 67.5
13,000 958 22.8
2,782 66.2
12,500 939 22.4
2,728 65
12,000 920 21.9
2,673 63.6
11,500 901 21.4
2,617 62.3
11,000 881 21.0
2,559 60.9
10,500 861 20.5
2,500 59.5
10,000 840 20.0
2,440 58.1
9,500 818 19.5
2,378 56.6
9,000 797 19.0
2,314 55.1
8,500 774 18.4
2,249 53.6
8,000 751 17.9
2,182 51.9
7,500 727 17.3
2,112 50.3
7,000 702 16.7
2,041 48.6
6,500 677 16.1
1,966 46.8
6,000 650 15.5
1,889 45
5,500 622 14.8
1,808 43.1
5,000 593 14.1
1,724 41
4,500 563 13.4
1,635 38.9
4,000 531 12.6
1,541 36.7
3,500 496 11.8
1,441 34.3
3,000 459 10.9
1,334 31.8
2,500 419 10.0
1,217 29
2 & 3” -1502 EXL Pressure Relief Disc Pressure vs Flow Rate
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
0.0 20.0 40.0 60.0 80.0
P
R
E
S
S
U
R
E
(
P
S
I
)
FLOW RATE (BPM)
2 INCH
3 INCH