Bulletin 71.1:HSR May 2010 Type HSR Pressure Reducing Regulator for Residential, Commercial, or Industrial Applications •  High Capacity •  Compact Design •  High Capacity Internal Relief Type HSR Angle Body •  Globe Bodies •  Angle Bodies •  Fixed Factor / PFM Accuracy Type HSR GLOBE BODY D103087X012 •  Meets or Exceeds ANSI B109.4 / CGA 6.18 Requirements www.fisherregulators.com

Body Sizes (Inlet x Outlet) and End Connection Styles All sizes are available in Globe or Angle body. Maximum Operating Pressure: See Table 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 Orifice Sizes Typical Regulating Capacities 1% Pressure Factor Accuracy: See Tables 6 and 7 Flow and Sizing Coefficients 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...

Table 1. Maximum Operating Inlet Pressure Table 2. Outlet Pressure Ranges Table 3. Standard Outlet Pressures and Set Flows Table 4. Flow and Sizing Coefficients

Table 5. Standard Inlet Pressures for Set Flows In addition, the Type HSR regulators have internal relief across the diaphragm to help minimize overpressure. Any outlet pressure above the start-to-discharge point of the nonadjustable relief valve spring moves the diaphragm off the relief valve seat, allowing excess pressure to bleed out through the screened spring case vent. Refer to Figure 2. When downstream demand decreases, the pressure under the diaphragm increases. This pressure overcomes the regulator setting (which is set by a spring). Through the action of the pusher post assembly, lever,...

Table 6. Typical HSR Regulating Capacities for a 3/4 NPT Outlet Body Size with 1% Pressure Factor Accuracy Table 7. Typical HSR Regulating Capacities for a 1 NPT Outlet Body Size with 1% Pressure Factor Accuracy

Table 8. 3/4 NPT Globe Body Capacities

Table 8. 3/4 NPT Globe Body Capacities (continued)

Table 8. 3/4 NPT Globe Body Capacities (continued)

Table 9. 3/4 x 1 NPT Globe Body Capacities For Non-Critical Pressure Drops For pressure drops lower than critical (absolute outlet pressure greater than one-half of absolute inlet pressure), use the following formula: Q = gas flow rate, SCFH T = absolute temperature of gas at inlet, "Rankine P1 = absolute inlet pressure, psia AP = pressure drop across the regulator, psi Then, if capacity is desired in normal cubic meters per hour at 0°C and 1,01325 bar, multiply SCFH by 0.0268. Ordering Information Carefully review each specification and complete the Ordering Guide on page 20. Send the Ordering...

Table 10. 1 NPT Globe Body Capacities

Table 10. 1 NPT Globe Body Capacities (continued)

Table 11. 3/4 NPT Angle Body Capacities

Table 11. 3/4 NPTAngle Body Capacities (continued)

Table 11. 3/4 NPTAngle Body Capacities (continued)

Table 12. 3/4 x 1 NPT Angle Body Capacities

Table 13. 1 NPT Angle Body Capacities

Table 13. 1 NPTAngle Body Capacities (continued)

INLET PRESSURE, PSIG (bar) Figure 3. 7-inches w.c. (17 mbar) Setpoint Relief Curves (with Lever Disconnected, No Vent Piping, and 3/4 or 1 NPT Vent) INLET PRESSURE, PSIG (bar) Figure 4. 2 psig (0,14 bar) Setpoint Relief Curves (with Lever Disconnected, No Vent Piping, and 3/4 or 1 NPT Vent) Table 14. Relief Performance

Bulletin 71.1:HSR POSITION 1 POSITION 3 (STANDARD) POSITION 2 POSITION 4 C F D B2504 E SPRING CASE VENT LOCATION (STANDARD VENT LOCATION FOR GLOBE BODY IS F AND FOR ANGLE BODY IS E) Figure 5.  Regulator Body and Spring Case Vent Locations (Body Position is with Regard to the Outlet) 3/4 or 1 NPT VENT CONNECTION 2.25 (57) 2.18 (55) 6.39 (162) 2.02 (51) 4.04 (103) 4.58 (116) 3/4 or 1 NPT 5.61 (142) 0.995 (25) 7.20 (183) INCHES (mm) Note: The standard body orientation for the angle body is with the body outlet     Rotated 90 degrees toward the reader. Compared to figure 5, the outlet of the    ...

Ordering Guide Body Type, Size and End Connection Style (Select One) Outlet Pressure Range (Select One) □ 1.25 to 2.2 psig (0,09 to 0,15 bar), Light Blue*** Body Orientation (Select One) Globe Angle □ Position 3 (standard)*** □ Position 3 (standard) Vent Size (Select One) Orifice Size (Select One) Vent Orientation (Select One) Specification Worksheet Line Size_ Fluid Type_ Specific Gravity. Does the Application Require Overpressure Protection? Maximum Inlet Pressure. Minimum Inlet Pressure. Differential Pressure_ Maximum Flow_ Accuracy Requirements: Less Than or Equal To: Construction Material...