Download Emerson MR98 Data Sheet

Bulletin 71.4:MR98
Table 11. Air Relief Capacities in Scfh / Nm3/h, Types MR98L and MR98LD with Metal Diaphragm
NOMINAL
BODY
SIZE,
In. / DN
1/4 NPT
SPRING
RELIEF PRESSURE
RANGE
psi
bar
2 to 7
0.14 to 0.48
Yellow
6 to 14
0.41 to 0.97
Green
12 to 25
20 to 38
1/2 / 15
0.83 to 1.7
1.4 to 2.6
Red
Blue
2 to 7
0.14 to 0.48
Yellow
6 to 14
0.41 to 0.97
Green
12 to 25
20 to 38
3/4 and 1 /
20 and 25
COLOR
CODE
0.83 to 1.7
1.4 to 2.6
Red
Blue
2 to 7
0.14 to 0.48
Yellow
6 to 14
0.41 to 0.97
Green
12 to 25
0.83 to 1.7
Red
20 to 38
1.4 to 2.6
Blue
RELIEF
PRESSURE
SETTING
PRESSURE BUILD-UP OVER RELIEF SETTING, psig / bar
2 / 0.14
4 / 0.28
8 / 0.55
10 / 0.69
bar
scfh
Nm /h
scfh
Nm /h
scfh
Nm /h
scfh
Nm /h
scfh
Nm3/h
2
0.14
290
7.68
500
13.3
710
18.9
870
23.4
1000
27.9
3
3
3
5
0.34
330
8.77
550
14.6
760
20.5
940
25.3
1100
30.2
10
0.69
290
7.72
510
13.7
730
19.6
930
25.1
1100
30.5
15
1.0
280
7.39
480
12.9
690
18.5
890
23.8
1100
29.1
20
1.4
330
8.83
570
15.3
810
21.7
1000
27.4
1200
33.1
25
1.7
360
9.68
610
16.4
860
23.1
1100
29.1
1300
35.1
25
1.7
340
9.21
550
14.6
750
20.1
950
25.5
1200
30.9
30
2.1
390
10.5
600
16.1
810
21.8
1000
27.4
1200
33
35
2.4
420
11.2
640
17.3
870
23.3
1100
29
1300
34.7
2
0.14
1500
39.2
1900
49.9
2300
60.6
2600
69.2
2900
77.7
5
0.34
2000
52.9
2400
63.8
2800
74.7
3100
82.8
3400
90.9
10
0.69
1800
47.2
2300
62.9
2900
78.6
3300
88.5
3700
98.4
15
1.0
1000
27
1700
45.9
2400
64.8
2900
77.3
3300
89.7
20
1.4
1500
39.5
2300
62.5
3200
85.5
3600
97.7
4100
110
25
1.7
1500
40
2400
64.9
3300
89.7
3900
104
4400
119
25
1.7
1200
33.5
2300
61.7
3400
89.8
4200
113
5100
137
30
2.1
1500
39.6
2600
70.4
3800
101
4700
125
5600
149
35
2.4
1600
43.8
2900
76.5
4100
109
5100
135
6000
162
2
0.14
2000
52.3
2800
74.9
3600
97.5
4300
115
5000
133
5
0.34
2600
69.9
3500
92.9
4300
116
5000
133
5600
150
10
0.69
2600
70
3800
103
5000
135
5800
157
6600
178
15
1.0
2500
66.7
3700
99.7
5000
133
5900
157
6800
181
20
1.4
2500
66.3
3900
104
5300
141
6300
168
7300
195
25
1.7
2500
67.3
4000
108
5500
148
6600
177
7700
206
25
1.7
2100
55.5
3400
90.8
4700
126
5700
153
6700
180
30
2.1
2300
61.4
3600
97.4
5000
133
6000
162
7100
190
35
2.4
2500
66.3
3800
102
5100
137
6200
167
7400
197
- continued -
20
6 / 0.41
psig
3