Data Sheet

Bulletin 71.4:MR98
22
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Table 12. Water Relief Capacities in Gallons per Minute / L/min, Types MR98H and MR98HD with Elastomer Diaphragm
NOMINAL
BODY SIZE,
In. / DN
SPRING RELIEF
PRESSURE
RANGE
COLOR
CODE
RELIEF
PRESSURE
SETTING
PRESSURE BUILD-UP OVER RELIEF SETTING, psig / bar
5 / 0.34   15 / 1.0 20 / 1.4
psi bar psig bar GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min
1/4 NPT
15 to
35
1.0 to
2.4
Yellow
15 1.0 4.5 17 5.2 19.7 6.3 23.8 7 26.3 7.6 28.8
25 1.7 5.2 19.7 6 22.8 7.3 27.6 8 30.3 8.7 32.9
35 2.4 5.4 20.4 6.5 24.5 8.1 30.6 9 34 9.9 37.5
25 to 75
1.7 to
5.2
Green
35 2.4 4.8 18.2 5.8 21.8 7.2 27.2 8.3 31.4 9.4 35.6
50 3.4 4.7 17.8 5.9 22.3 7.7 29.1 9.1 34.4 11 39.7
75 5.2 5.2 19.7 6.5 24.7 8.5 32.2 10 38.2 12 44.3
70 to
140
4.8 to
9.7
Red
75 5.2 3.8 14.4 4.8 18.2 6.3 23.8 7.9 29.7 9.4 35.6
100 6.9 4.2 15.9 5.1 19.2 6.4 24.2 8.2 31 10 37.8
125 8.6 4 15.1 5 19.1 6.6 25 8.6 32.5 11 40.1
130 to
200
9.0 to
13.8
Blue
150 10.3 4.4 16.6 5.3 20.1 6.7 25.3 8.5 32 10 38.6
175 12.1 4.4 16.6 5.2 19.8 6.5 24.6 8.4 31.8 10 39
200 13.8 4.3 16.3 5.3 20 6.8 25.7 8.6 32.3 10 39
1/2 / 15
15 to 35
1.0 to
2.4
Yellow
15 1.0 12 46.5 14 53 17 62.8 18 69.8 20 76.8
25 1.7 14 52.6 16 60 19 71.1 21 79.3 23 87.4
35 2.4 15 57.1 18 66.5 21 80.6 23 88.5 26 96.5
25 to 75
1.7 to
5.2
Green
35 2.4 12 43.5 14 53.2 18 67.7 21 79.4 24 91.2
50 3.4 12 46.9 15 57.5 19 73.4 23 86.8 27 100
75 5.2 13 49.2 17 62.5 22 82.5 26 98.7 30 115
70 to
140
4.8 to
9.7
Red
75 5.2 10 37.8 13 48.9 17 65.4 22 83.4 27 101
100 6.9 12 46.5 15 57.3 19 73.4 24 92.5 30 112
125 8.6 12 45.8 15 55.6 19 70.4 24 91.7 30 113
130 to
200
9.0 to
13.8
Blue
150 10.3 8.5 32.2 10 39.3 13 49.9 18 66.2 22 82.5
175 12.1 8.8 33.3 11 41.2 14 53 18 69.6 23 86.3
200 13.8 9.1 34.4 11 41.4 14 51.8 18 68.5 23 85.1
3/4 and 1 /
20 and 25
15 to 35
1.0 to
2.4
Yellow
15 1.0 23 87.8 27 100 32 120 35 133 39 146
25 1.7 28 106 31 119 37 138 40 151 43 164
35 2.4 31 118 35 132 40 153 44
167 48 181
25 to 75
1.7 to
5.2
Green
35 2.4 24 91.5 28 108 35 132 41 155 47 177
50 3.4 27 101 32 120 39 148 45 172 52 196
75 5.2 29 109 35 132 44 166 51 192 58 219
70 to
140
4.8 to
9.7
Red
75 5.2 22 84.7 28 105 36 136 44 165 51 194
100 6.9 23 85.9 29 109 38 143 47 178 56 213
125 8.6 25 96.1 33 123 43 164 52 198 61 231
130 to
200
9.0 to
13.8
Blue
150 10.3 19 71.5 24 90 31 118 41 155 51 192
175 12.1 21 79.8 26 98.9 34 127 44 167 55 207
200 13.8 23 85.1 28 104 35 133 46 176 58 218
1-1/2 and 2 /
40 and 50
5 to 35
0.34 to
2.4
Dark gray
5 0.34 43 164 53 202 69 260 83 314 97 368
10 0.69 56 211 66 250 82 308 96 362 110 416
15 1.0 63 237 74 278 90 340 100 391 120 441
25 1.7 69 260 82 310 100 387 120 441 130 495
35 2.4 80 303 94 357 120 438 130 494 150 550
20 to 65
1.4 to
4.5
Black with
light blue
stripe
25 1.7 57 215 70 264 89 337 110 404 120 471
35 2.4 58 220 73 278 96 364 110 432 130 500
50 3.4 62 235 81 305 110 409 130 485 150 561
65 4.5 70 266 90 342 120 456 140 530 160 603
50 to
100
3.4 to
6.9
Light gray
50 3.4 53 202 69 260 92 348 110 431 140 515
75 5.2 59 224 77 291 100 391 130 486 150 582
100 6.9 65 246 85 322 120 435 140 529 160 623
75 to
170
5.2 to
11.7
Black
75 5.2 46 174 57 217 74 281 100 381 130 481
100 6.9 52 195 64 241 82 309 110 414 140 519
125 8.6 56 213 70 264 90 340 120 445 150 549
170 11.7 65 246 77 292 96 361 120 464 150 567