MR95 Series
10
Table 4.
Maximum Cold Working Pressures of Body Size and Material
(1)(2)
Table 5.
Types MR95LD and MR95HD Flow and Sizing Coefficients
BoDy SizE
WIDE-OPEN COEFFICIENTS
(FOR RELIEF SIZING)
c
1
K
m
IEC SIZING COEFFICIENTS
Inches
DN
c
v
c
g
c
s
X
T
F
D
F
L
1/4
- - - -
1.1
37
1.85
33.6
0.74
0.715
0.62
0.86
1/2
15
2.9
103
5.15
35.5
0.79
0.797
0.70
0.89
3/4 and 1
20 and 25
6.0
221
11.05
36.8
0.88
0.857
0.68
0.94
1-1/2 and 2
40 and 50
18.1
700
35.00
38.7
0.88
0.945
0.65
0.94
K
m
= F
L
2
TyPE
BoDy SizE
BoDy MaTERiaLS
MaXiMuM iNLET
PRESSuRE
MaXiMuM ouTLET
PRESSuRE
MaXiMuM SPRiNG caSE
PRESSuRE
psig
bar
psig
bar
psig
bar
MR95L and
MR95LD
All available
sizes
(3)
Gray cast iron
250
17.2
50
3.4
50
3.4
WCC Steel
300
20.7
125
8.6
125
8.6
LCC Steel
300
20.7
125
8.6
125
8.6
CF8M Stainless Steel
300
20.7
125
8.6
125
8.6
CF3M Stainless Steel
300
20.7
125
8.6
125
8.6
Monel
®(4)
300
20.7
125
8.6
125
8.6
Hastelloy
®
C
(4)
300
20.7
125
8.6
125
8.6
MR95H and
MR95HD
All available
sizes
(3)
Gray cast iron
250
17.2
250
17.2
250
17.2
WCC Steel
300
20.7
300
20.7
300
20.7
LCC Steel
300
20.7
300
20.7
300
20.7
CF8M Stainless Steel
300
20.7
300
20.7
300
20.7
CF3M Stainless Steel
300
20.7
300
20.7
300
20.7
Monel
®(4)
300
20.7
300
20.7
300
20.7
Hastelloy
®
C
(4)
300
20.7
300
20.7
300
20.7
Aluminum-Bronze
(4)
300
20.7
300
20.7
300
20.7
MR95HP
All available
sizes
(3)
WCC Steel
1000
68.9
600
41.4
300
20.7
LCC Steel
1000
68.9
600
41.4
300
20.7
CF8M Stainless Steel
1000
68.9
550
37.9
300
20.7
CF3M Stainless Steel
1000
68.9
550
37.9
300
20.7
Monel
®(4)
1000
68.9
550
37.9
300
20.7
Hastelloy
®
C
(4)
1000
68.9
550
37.9
300
20.7
Aluminum-Bronze
(4)
1000
68.9
550
37.9
300
20.7
MR95HT
1/4 NPT and
1/2 to 1-inch /
DN 15 to 25
WCC Steel
600
41.4
600
41.4
300
20.7
LCC Steel
600
41.4
600
41.4
300
20.7
CF8M Stainless Steel
600
41.4
550
37.9
300
20.7
CF3M Stainless Steel
600
41.4
550
37.9
300
20.7
Monel
®(4)
600
41.4
550
37.9
300
20.7
Hastelloy
®
C
(4)
600
41.4
550
37.9
300
20.7
Aluminum-Bronze
(4)
600
41.4
550
37.9
300
20.7
1-1/2 and 2-inch /
DN 40 and 50
WCC Steel
600
41.4
450
31.0
300
20.7
LCC Steel
600
41.4
450
31.0
300
20.7
CF8M Stainless Steel
600
41.4
450
31.0
300
20.7
CF3M Stainless Steel
600
41.4
450
31.0
300
20.7
Monel
®
600
41.4
450
31.0
300
20.7
Hastelloy
®
C
600
41.4
450
31.0
300
20.7
Aluminum-Bronze
600
41.4
450
31.0
300
20.7
1. The pressure/temperature limits in this Instruction Manual, and any applicable standard or code limitation should not be exceeded.
2. The pressure limits given are based on the body size and body materials only. Actual pressure limits of the assembled regulator may decrease and vary depending on the temperature,
body end connection, diaphragm, seat, and/or trim material of the regulator.
3. See Tables 1 and 2 for all available body sizes.
4. Not available for 1/4 NPT body size.
Monel
®
is a mark owned by Special Metals Corporation.
Hastelloy
®
C is a mark owned by Haynes International, Inc.
