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Fisher Natural Gas – Fuel Gas Regulators

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Fuel Fisher Natural Regulators

Fisher Natural Gas – Fuel Gas Regulators

Fuel Gas Regulators


66 Series Pressure Reducing Regulators

Fisher Natural Gas – Fuel Gas Regulators




The Type 66 self-operated regulator maintains a reduced outlet pressure while satisfying the downstream flow demands.  The Type 66Z and 66ZZ self-operated regulators also control a reduced outlet pressure; however, both have springs sensitive to negative pressures and can be used for vacuum regulation.  Each regulator type has a balancing diaphragm which increases accurate and sensitive response to pressure changes by reducing the unbalanced forces acting on the valve plug.

 

Features

Body Sizes and End Connection Styles

  • Cast Iron
  • 2, 3 or 4-inch (DN 50, 80 or 100) body size NPT or 125 FF
  • Steel and Stainless Steel
  • Maximum Inlet Pressures

  • Emergency Inlet Pressure: 25 psig (1,7 bar)
  • Maximum Pressure to Avoid Internal Parts Damage: 10 psig (0,69 bar)
  • Maximum Outlet (Casing) Pressure

  • 8 psig (0,55 bar)
  • Outlet Pressure Ranges

  • 4-inches w.c. to 5 psig (10 to 0,34 bar) in 11 ranges
  • Temperature Capabilites

  • -40º to 180°F (-40 to 82°C)
  • Pressure Registration

  • Cast Iron Body: Internal (standard) or External
  • Steel Body: External
  • Approximate Shipping Weights

  • 2-inch (DN 50)
  • Screwed Ends, Pounds (kg):  50 (23)
  • Flanged Ends, Pounds (kg): 55 (25)
  • 3-inch (DN 80)
  • Flanged Ends, Pounds (kg): 100 (45)
  • 4-inch (DN 100)
  • Flanged Ends, Pounds (kg):  155 (70)
  • Type 99 Pressure Reducing Regulator

    Fisher Natural Gas – Fuel Gas Regulators

    The Type 99 regulator typically provides fuel gas to boilers, furnaces, ovens, mixers, and large commercial or institutional installations.

    The key to the operation of a Type 99 regulator is the yoked double-diaphragm pilot. Fast response and accuracy are made possible by the amplifying effect of the pressure-balanced pilot and by the two-path control system. The function of the pilot is to sense change in the controlled pressure and amplify it into a larger change in the loading pressure . Any changes in outlet pressure act quickly on both the actuator diaphragm and the loading pilot, thus providing the precise pressure control that is characteristic of a two-path system.

    Features

    Body Sizes and End Connection Styles

  • 2-inch (DN 50)
  • Cast Iron: NPT, 125FF, or 250 RF
  • Steel: NPT, SWE, 150 RF, or 300 RF
  • Pressure Registration

  • Internal
  • Maximum Inlet Pressure

  • 400 psig (27,6 bar) for higher inlet pressures, up to 1000 psig (69 bar)
  • Maximum Outlet Pressures

  • Operating: 100 psig (6,9 bar)
  • Outlet Pressure Ranges

  • 2-inches w.c. to 100 psig (5 mbar to 6,9 bar) in nine ranges
  • Temperature Capabilities

  • -20 to 180°F (-29 to 82°C)
  • 133 Series Pressure Reducing Regulators

    Fisher Natural Gas – Fuel Gas Regulators




    The 133 Series direct-operated regulators are ideal for industrial and commercial applications supplying gas to furnaces, burners, and other appliances.  A balancing system enables the regulator to control gas pressure accurately for maximum combustion efficiency despite varying inlet pressures.

     

     

    Features

    Body Size and End Connection Styles

  • Cast Iron
  • 2-inch (DN 50) with NPT or 125A FF flanged end connections
  • Steel Body
  • 2-inch (DN 50) with NPT or 150 RF flanged end connections
  • Maximum Inlet Pressure

  • Operating:
  • 133L: 60 psig (4,1 bar)
  • 133H: 60 psig (4,1 bar)
  • Emergency:
  • 133L: 125 psig (8,6 bar)
  • 133H: 125 psig (8,6 bar)
  • Maximum Outlet (Casing) Pressure

  • 15 psig (1,03 bar)
  • Outlet Pressure Range

  • 2-inch w.c. to 10 psig (5 mbar to 0,69 bar) in 9 ranges
  • Temperature Capabilites

  • -20 to 150°F (-29 to 66°C)
  • Options

  • Restriction collar to reduce wide-open capacity to approximately 25,40, or 60 percent of standard wide-open capacity
  • Approximate Weights

  • 133H End Connection Style:  NPT female  35 lbs (15,9 kg)
  • 133L End Connection Style:  125FF and 150RF 40 lbs (18,1 kg)
  • 299H Pressure Reducing Regulator

    Fisher Natural Gas – Fuel Gas Regulators


    The 299H Series regulators are pilot-operated pressure reducing regulators with the pilot integrally mounted to the actuator casing.  They are used in natural gas distrtibution systems, gas supply to industrial boilers, furnaces, ovens, mixers, and plant air service.  The Type 299HR has a token internal relief valve to relieve minor overpressure caused by thermal expansion.

    This regulator has a pressure control accuracy of + 1% of absolute control pressure, making it an excellent choice for fixed factor billing or pressure factor measurement.


    Features

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