ORANGE RESEARCH
Model 2021FG Low Flow Gauge
Description
Rugged economical low flow instruments install directly in the flow stream to measure fluid flow rates and indicate the results on an easy-to-read dial gauge.
Series 2021FG features heavy duty anodized aluminum or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 200°F. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids.
Specifications
  • Standard ranges: 0-2, 0-4, 0-5, 0-8, 0-10, 0-15, 0-20, 0-40 GPH
  • Max. line pressure: 3000 psig
  • Pressure drop: 5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Square root calibrated*
  • Max. temperature: 200°F
  • Standard porting: 1/4" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2021FGS Low Flow Gauge-Switch
    Description
    Rugged economical low flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2021FGS and 2021FS feature heavy duty anodized aluminum or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 175°F. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. One or two field-adjustable reed switches may be ordered. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-2, 0-4, 0-5, 0-8, 0-10, 0-15, 0-20, 0-40 GPH
  • Max. line pressure: 3000 psig
  • Pressure drop: 5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Square root calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1/4" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2221FG Flow Gauge
    Description
    Compact, rugged economical variable-area flow instruments install directly in the flow stream to measure fluid flow rates and indicate the results on an easy-to-read dial gauge.
    Series 2221FG features heavy duty anodized aluminum, naval brass, or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 200°F. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids.
    Specifications
  • Standard ranges: 0-1, 0-2, 0-3, 0-4, 0-5 GPM
  • Max. line pressure: 3000 psig (5000 optional)
  • Pressure drop: 2-5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Max. temperature: 200°F
  • Standard porting: 1/4" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2221FGS Flow Gauge-Switch
    Model 2221FS Flow Switch
    Description
    Rugged economical flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2221FGS and 2221FS feature heavy duty anodized aluminum, naval brass, or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 175°F. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. One or two field-adjustable reed switches may be ordered. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-1, 0-2, 0-3, 0-4, 0-5 GPM
  • Max. line pressure: 3000 psig (5000 optional)
  • Pressure drop: 2-5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1/4" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2223FGS Flow Gauge-Switch
    Model 2223FS Flow Switch
    Description
    Rugged economical flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2223FGS and 2223FS feature heavy duty anodized aluminum, naval brass, or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 175°F. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. A field adjustable reed switch and NEMA-4 switch enclosure with 1/2" NPT electrical conduit connections is standard. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-1, 0-2, 0-3, 0-4, 0-5 GPM
  • Max. line pressure: 3000 psig (5000 optional)
  • Pressure drop: 2-5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1/4" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2321FG Flow Gauge
    Description
    Compact, rugged economical variable-area flow instruments install directly in the flow stream to measure fluid flow rates and indicate the results on an easy-to-read dial gauge.
    Series 2321FG features heavy duty anodized aluminum, naval brass, or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 200°F. Inlet/outlet ports are 1/2" NPT for greater flow rates. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids.
    Specifications
  • Standard ranges: 0-1, 0-2, 0-3, 0-4, 0-5, 0-6, 0-8, 0-10 GPM
  • Max. line pressure: 3000 psig (5000 optional)
  • Pressure drop: 3-10 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Max. temperature: 200°F
  • Standard porting: 1/2" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2321FGS Flow Gauge-Switch
    Model 2321FS Flow Switch
    Description
    Rugged economical flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2321FGS and 2321FS feature heavy duty anodized aluminum, naval brass, or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 175°F. Inlet/outlet ports are 1/2" NPT for greater flow rates. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. One or two field-adjustable reed switches may be ordered. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-1, 0-2, 0-3, 0-4, 0-5, 0-6, 0-8, 0-10 GPM
  • Max. line pressure: 3000 psig (5000 optional)
  • Pressure drop: 3-10 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1/2" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2323FGS Flow Gauge-Switch
    Model 2323FS Flow Switch
    Description
    Rugged economical flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2323FGS and 2323FS feature heavy duty anodized aluminum, naval brass, or 316 stainless steel bodies suitable for line pressures up to 3000 psig and temperatures to 175°F. Inlet/outlet ports are 1/2" NPT for greater flow rates. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. A field adjustable reed switch and NEMA-4 switch enclosure with 1/2" NPT electrical conduit connections is standard. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-1, 0-2, 0-3, 0-4, 0-5, 0-6, 0-8, 0-10 GPM
  • Max. line pressure: 3000 psig (5000 optional)
  • Pressure drop: 3-10 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1/2" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2421FG Flow Gauge
    Description
    Rugged economical variable-area flow instruments install directly in the flow stream to measure fluid flow rates and indicate the results on an easy-to-read dial gauge.
    Series 2421FG features heavy duty anodized aluminum or 316 stainless steel bodies suitable for line pressures up to 1500 psig and temperatures to 200°F. Inlet/outlet ports are 1" NPT for highest flow rates. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids.
    Specifications
  • Standard ranges: 0-10, 0-15, 0-20, 0-25, 0-30 GPM
  • Max. line pressure: 1500 psig
  • Pressure drop: 2-5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Max. temperature: 200°F
  • Standard porting: 1" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2421FGS Flow Gauge-Switch
    Model 2421FS Flow Switch
    Description
    Rugged economical flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2421FGS and 2421FS feature heavy duty anodized aluminum or 316 stainless steel bodies suitable for line pressures up to 1500 psig and temperatures to 175°F. Inlet/outlet ports are 1" NPT for highest flow rates. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. One or two field-adjustable reed switches may be ordered. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-10, 0-15, 0-20, 0-25, 0-30 GPM
  • Max. line pressure: 1500 psig
  • Pressure drop: 2-5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    ORANGE RESEARCH
    Model 2423FGS Flow Gauge-Switch Model 2423FS Flow Switch
    Description
    Rugged economical flow instruments install directly in the flow stream to indicate and/or control fluid flow rates.
    Series 2423FGS and 2423FS feature heavy duty anodized aluminum or 316 stainless steel bodies suitable for line pressures up to 1500 psig and temperatures to 175°F. Inlet/outlet ports are 1" NPT for greater flow rates. The industrial quality instruments replace fragile glass rotameters and can measure dirty or opaque fluids. A field adjustable reed switch and NEMA-4 switch enclosure with 1/2" NPT electrical conduit connections is standard. Switches can be set to open or close on either increasing or decreasing flow. Unless specified, they are supplied to close on increasing flow.
    Specifications
  • Standard ranges: 0-10, 0-15, 0-20, 0-25, 0-30 GPM
  • Max. line pressure: 1500 psig
  • Pressure drop: 2-5 psid
  • Accuracy: ±5 percent
  • Repeatability: 1 percent
  • Gauge dial: Linear calibrated*
  • Switches: SPST 125 VAC, 0.7 A SPDT 120 VAC, 0.2 A
  • Max. temperature: 175°F
  • Standard porting: 1" NPT in-line
    		• Dimensional Drawing

    back to flow meters and controls

    Footnotes
    Standard calibration is for water at 68°F, horizontal mounting. Can be calibrated and marked for customer specified sp. gr. and viscosity (up to 150 cs). Additional ranges and features available.

    back to flow meters and controls