Fisher Natural Gas – Residential / Utilization Service Regulators

Residential / Utilization Service Regulators
•    912N
•    HSR

 

Type 912N Pressure Reducing Regulator



The Type 912N direct-operated, spring-loaded regulators are suitable for a variety of gaseous fluids, including natural gas, propane, and air. They often supply loading pressure to other units. These regulators have limited capacity internal relief across the diaphragm to help minimize overpressure.

 

Features

  • Accurate, Sensitive Control
  • Versatility
  • Weather and Insect Protection
  • Easy Maintenance

Body Size and End Connection Styles

  • Inlet: 1/4-inch (DN 6) NPT
  • Outlet: 1/4 or 3/8-inch (DN 6 or 10) NPT

Flow Coefficients

  • Wide-Open Cg: 4
  • Wide-Open Cv: 0.114
  • C1: 35

Options

  • 1/8-inch NPT spring case vent connection with removable screen

Maximum Inlet Pressure

  • 250 psig (17,2 bar)

Maximum Outlet (Casing) Pressure

  • 20 psig (1,4 bar)

Outlet Pressure Ranges

  • 3-inches w.c. to 5 psig ( 7 to 345 mbar) in six ranges

Pressure Registration

  • Internal

Temperature Capabilites

  • -20 to 160°F (-29° to 71°C)

Approximate Weight

  • 1.3 pounds (0,6 kg)

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Type HSR Direct-Operated, Spring-Loaded Pressure Regulators

The Type HSR direct-operated, spring-loaded pressure regulators provide economical pressure reducing control in a variety of residential, commercial, and industrial applications. The Type HSR pressure regulators can be used with natural, manufactured, or liquefied petroleum gases. In addition, the Type HSR pressure 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.

The Type HSR pressure 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

  • 3/4 x 3/4-inch (DN 20 x 20)
  • 3/4 x 1-inch (DN 20 x 25)
  • 1 x 1-inch (DN 25 x 25) NPT
  • All sizes available in Globe or Angle 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 Ranges

  • 6-inches w.c. to 2.2 psig (15 mbar to 0,15 bar) in 5 ranges

Temperature Capabilites

  • -20° to 160°F (-29° to 71°C)

Pressure Registration

  • Internal

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