Type HSR
2
ORIFICE SIZE
WIDE-OPEN C
g
FOR RELIEF SIZING
MAXIMUM OPERATING INLET PRESSURE TO OBTAIN
GOOD REGULATING PERFORMANCE
Inch mm
psig
bar
1/8
3/16
1/4
3/8
1/2
3.2
4.8
6.4
9.5
13
12.5
28.2
50.0
105
185
125
100
60
30
20
8.6
6.9
4.1
2.1
1.4
Table 2. Outlet Pressure Ranges
OUTLET PRESSURE RANGE
SPRING
PART NUMBER
SPRING
COLOR
STANDARD CLOSING
CAP COLOR
SPRING WIRE DIAMETER SPRING FREE LENGTH
Inch w.c. mbar Inch mm Inch mm
4 to 6 10 to 15 T14398T0012 Orange Black 0.062 1.57 3.40 86.4
6 to 8 15 to 20 T14399T0012 Yellow Black 0.067 1.70 3.61 91.4
8 to 10 20 to 25 T14405T0012 Black Black 0.067 1.70 3.71 94.0
10 to 12.5 25 to 31 T14400T0012 Silver Black 0.072 1.83 4.10 104
12.5 to 20 31 to 50 T14401T0012 Gray Black 0.080 2.03 3.60 91.4
20 to 35 50 to 87 T14402T0012 Pink Black 0.093 2.36 3.52 88.9
1.25 to 2.2 psig 0.09 to 0.15 bar T14403T0012 Light Blue Red 0.105 2.67 3.66 94.0
ORIFICE SIZE MAXIMUM ALLOWABLE INLET PRESSURE IF OUTLET PRESSURE IS HELD AT OR BELOW 2 psig / 140 mbar
Inch mm psig bar
1/8 3.2 125 8.6
3/16 4.8 65 4.5
1/4 6.4 30 2.1
3/8 9.5 10 0.69
1/2 13 7 0.48
1. The relief performance testing is in accordance with ANSI B109.4 and CGA 6.18, with the regulator set at 7-inch w.c. / 17 mbar, stem linkage disconnected and vented directly to
atmosphere using the 3/4 or 1-inch / 19 or 25 mm vent.
Table 3. Relief Performance
Body Sizes (Inlet x Outlet) and
End Connection Styles
3/4, 3/4 x 1 and 1 NPT
All sizes available in Globe or Angle body.
Allowable Inlet Pressures
(1)
Emergency: 150 psig / 10.3 bar
Maximum Operating Pressure: See Table 1
Allowable Outlet Pressures
(1)
Emergency (Casing): 25 psig / 1.7 bar
Maximum Operating Pressure to Avoid Internal
Parts Damage: 3 psi / 0.21 bar differential above outlet
pressure setting
Outlet Pressure Ranges
See Table 2
Spring Case Vent Connection
Standard: 1 NPT with removable screen
Optional: 3/4 NPT with removable screen
Flow and Sizing Coefcients
See Table 4
Temperature Capabilities
-20 to 160°F / -29 to 71°C
Specications
This section lists the specications of Type HSR. Factory specication such as type number, orice size, spring range and date
of manufacture are stamped on the nameplate fastened on the regulator at the factory.
Internal Relief Performance
Approximate Internal Relief Start-To-Discharge Point:
6 to 12 inches w.c. / 15 to 30 mbar above outlet pressure
setting (Applies to 6 to 8 inches w.c. / 15 to 20 mbar and
8 to 10 inches w.c. / 20 to 25 mbar springs only.)
Relief Performance: See Figures 4 and 5
Lockup Performance During Normal Operation
ORIFICE SIZE LOCKUP ABOVE SETPOINT
Inch mm Inch w.c. mbar
1/8
3/16
1/4
3/8
1/2
3.2
4.8
6.4
9.5
13
1
1
2
2.5
3
2
2
5
6
7
Pressure Setting Adjustment
Adjusting Screw
Pressure Registration
Internal
Approximate Weight
4 pounds / 2 kg
Designed, Tested and Evaluated Consistent With:
ANSI B109.4 / CSA 6.18
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
Table 1. Maximum Operating Inlet Pressure
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