Data Sheet
Bulletin 71.1:MR95
10
Table 4. Maximum Cold Working Pressures of Body Size and Material
(1)(2)
TYPE BODY SIzE BODY MATERIAL
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 in. /
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 in. /
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 Bulletin 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.
Table 5. Flow and Sizing Coefcients for all MR95 Series Regulators
Monel
®
is a mark owned by Special Metals Corporation.
Hastelloy
®
C is a mark owned by Haynes International, Inc.
BODY SIzE
WIDE-OPEN COEFFICIENTS
(FOR RELIEF SIZING)
C
1
K
m
IEC SIZING COEFFICIENTS
In. 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
Table 6. Relief Sizing Coefcients for MR95 Series Regulators with Reduced Flow Orices
(1)
BODY SIzE WIDE-OPEN COEFFICIENTS FOR
MR95 SERIES REDUCED FLOW OPTION
WIDE-OPEN COEFFICIENTS FOR
LEGACY 95 SERIES
In. DN C
g
C
g
1/4 - - - - 28 28
1/2 15 70 67
3/4 and 1 20 and 25 156 156
1-1/2 and 2 40 and 50 482 475
1. The reduced ow orice option offers similar ow capacity as the equivalent 95 series conguration.