Fisher HSR-CHGBLYN Model Pressure Reducing Regulator Use For Gas
Fired Burner
USA Fisher Brand HSR direct-operated, spring-loaded pressure
reducing regulators provide control in residential, commercial, and
industrial applications for natural, manufactured, or liquefied
petroleum gases.Internal relief across the diaphragm helps minimize
overpressure. Any outlet pressure over the start-to-discharge point
of the nonadjustable relief valve spring moves the diaphragm off
the relief valve seat, allowing excess pressure to vent.Regulators
meet ANSI B109.4/CGA 6.18.
Features
Angle Bodies
Globe Bodies
High Capacity
Compact Design
High Capacity Internal Relief
Meets or Exceeds ANSI B109.4 / CGA 6.18 Requirements
Fixed Factor / PFM Accuracy
Body Size and End Connection Styles
1 x 1-inch, NPT Globe Body
Allowable Inlet Pressure
Emergency: 150 psig / 10,3 bar
Maximum Operating Pressure: 125 psig / 8,6 bar
Allowable Outlet Pressure
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
1.25 to 2.2psi/0.09 to 0.15bar
Outlet Pressure Ranges Of fisher HSR pressure regulator
4 to 6-inches w.c. (10 to 15 mbar)
6 to 8-inches w.c. (15 to 20 mbar)
8 to 10-inches w.c. (20 to 25 mbar
10 to 12.5-inches w.c. (25 to 31mbar)
12.5 to 20-inches w.c. (31to 50 mbar)
20 to 35-inches w.c. (50 to 87 mbar)
1.25 to 2.2 psig (0.09 to 0.15 bar)
Pressure Registration
Internal
Temperature Capabilities
-20 to 160°F / -29 to 71°C
Table 1. Maximum Operating Inlet Pressure
| ORIFICE SIZE | WIDE-OPEN Cg | MAXIMUM OPERATING INLET PRESSURE TO OBTAIN |
| GOOD REGULATING PERFORMANCE |
| Inch | mm | FOR RELIEF SIZING | psig | bar |
| 1/8 | 3.2 | 12.5 | 125 | 8.6 |
| 3/16 | 4.8 | 28.2 | 100 | 6.9 |
| 1/4 | 6.4 | 50 | 60 | 4.1 |
| 3/8 | 9.5 | 105 | 30 | 2.1 |
| 1/2 | 13 | 185 | 20 | 1.4 |
Table 2. Outlet Pressure Ranges
| OUTLET PRESSURE RANGE | SPRING | SPRING WIRE DIAMETER | SPRING FREE LENGTH |
| COLOR | Inch | mm | Inch | mm |
| 4 to 6" w.c. / 10 to 15 mbar | Orange | 0.062 | 1.57 | 3.40 | 86.4 |
| 6 to 8" w.c. / 15 to 20 mbar | Yellow | 0.067 | 1.70 | 3.61 | 91.4 |
| 8 to 10" w.c. / 20 to 25 mbar | Black | 0.067 | 1.70 | 3.71 | 94.0 |
| 10 to 12.5" w.c. / 25 to 31 mbar | Silver | 0.072 | 1.83 | 4.10 | 104 |
| 12.5 to 20" w.c. / 31 to 50 mbar | Gray | 0.080 | 2.03 | 3.60 | 91.4 |
| 20 to 35" w.c. / 50 to 87 mbar | Pink | 0.093 | 2.36 | 3.52 | 88.9 |
| 1.25 to 2.2 psig / 0.09 to 0.15 bar | Light Blue | 0.105 | 2.67 | 3.66 | 94.0 |
Table 3. Relief Performance
| 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-inches w.c. / 17 mbar,
stem linkage disconnected, and vented directly to atmosphere using
the 3/4 or 1-inch / 19 or 25 mm vent. |
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