PVC Flow Meters & Switches

Brand: Orange Research

Orange Research has been a supplier of PVC flow meters and PVC switches for water and corrosive liquids applications for over 20 years. 

Now we’ve expanded the line to add more features. The primary wetted parts are PVC, Teflon for compatibility with water and liquid chemicals. 

They’re perfect for difficult environments where aluminum, stainless steel or brass is not appropriate.

Our model 2221 and 2321 variable area PVC flow meters handle flow ranges from 0-1 to 0-10 GPM. Other ranges are available upon request. 

The PVC bodies handle up to 200 psi pressures. Metal pressure bodies are optional to handle up to 3000 psi line pressures.

The dials, made from durable ABS plastic, measure up to 3.5” diameter. 

Switches are standard options to alert users of alarm conditions and transmitters are also available upon request. 

Accuracy is 2% F.S. and each unit is calibrated to NIST standards.

The units come with 1/4 or 1/2 inch female NPT process ports. Standard calibration is on water.

Specifications

Sensor Type

  • variable area

Functions

  • gauge, gauge/switch

Calibration Medium

  • water (SG=1,V=1 CS)

Dial Sizes

  • 2.5”,3.5” style “M”

Dial Starting Mark

  • approximately 10 % of Full Scale

Lens

  • plastic

Range

  • Minimum: 0-1 GPM, max: 0-2 GPM

Accuracy

  • ± 2 % of full scale ascending after rap at room temperature for standard water

Repeatability

  • ± 1 % of Full Scale

Maximum Line\min. Burst Pressure

  • 200\750 psig

Direction of Flow

  • left to right

Porting Size & Orientation

  • 1/4” NPT porting, in-line only

Standard Maximum Temperature

  • 140F

Minimum Temperature

  • 32° F

Switch Type

  • 1 or 2 external hermetically sealed reed switch

Switch Adjustability

  • upper 80 % of full scale ascending

Switch Dead band

  • 5-20 % Full Scale

Switch Options

  • -A SPST N/O (120 Vac,0.7A,70 VA,200 Vdc,1.0A,50W)
  • -B SPST N/C (120 Vac,0.25A,5 VA,175 Vdc,0.25A,5W)
  • C SPDT (120 Vac, 0.25 A, 5 VA, 175 Vdc, 0.25 A, 5 W)

Switch Setting

  • top of range ascending or other set points within adjustability ascending or descending

Static & Piston Seals

  • Viton (EPDM optional)

Primary Wetted Parts

  • PVC

Secondary Wetted Parts

  • Teflon coated ceramic magnet, PVC cone, Teflon coated spring, spacers

Certification

  • CSA (File 043810)

Documentation

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