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GPI - Turbine & Oval Gear Flow Meters
Mechanical Turbine Water Meters
Divider Hedland Variable Area Flow Meters - Oil Hedland Variable Area Flow Meters - Phosphate Ester Fluids Hedland Variable Area Flow Meters - Water Based Fluids & Emmulsions Hedland Variable Area Flow Meters - Water Meters Hedland Variable Area Flow Meters - Air offers you excellent quality, outstanding customer service and 24/7 access to Hedland's most popular Variable Area Flow Meters. Our Hedland flow meters are well suited for these types of applications: air flow meter, water flow meter, petroleum flow meter, oil flow meter, hedland flow meter, water based fluids, chemicals and specialty gases.

Looking for a flow meter with a transmitter, we can help you. Just give our highly trained Hedland Flow Specialists a call at 866-905-7211. We're available M-F, 8am - 5pm Eastern Time.

Basic In-Line Flow Meters Basic Inline Flow Meters

Hedland offers a complete line of over 15,000 variable area flow meters to measure oil, phosphate esters, water and water-based fluids, as well as air and other compressed gases.

  • Rugged, durable construction featuring aluminum, brass and stainless steel bodies
  • Most models available in sizes from 1/4" to 3"
  • Accuracy of ±2% of full scale
  • Temperatures to 240 °F (116°C); 400 °F (204°C) for high temperature models
  • Pressures up to 6000 psi (414 bar)
  • Operates in any position
  • No flow straighteners or special piping required
  • 360° rotatable scales
  • Custom scales available

Flow-Alert™ Flow Switches  

The Flow-Alert flow switches provide both visual flow indication and the capability to signal alarms, open or close circuits, trigger warning lights and buzzers, and shut down pumps or other equipment.

  • Micro switch (latching) or reed switch (proximity) models available
  • Choice of one or two switches per meter
  • Available in meter sizes from 1/4" to 11/2"
  • Accuracy of ±2% of full scale

Flow-Alert Flow Switches

Test Kits Test Kit

The VA High Pressure Test Kits are designed to measure flow and pressure. Power measurements are derived from the product of flow and pressure. Includes: Basic Flow Meter, Control Valve & Pressure Gauge.

  • Construction: Available in Aluminum, Brass and T303 SS
  • Sizes: 1/4 to 1-1/2 inch NPT(F), SAE and BSPP ports
  • Pressure up to 6000 psi (414 bar) maximum
  • Temperature up to 240°F (116°C)
  • Accuracy ±2% full scale
  • Repeatability ±1%
  • Standard calibration: .876 specific gravity, 140 SUS (32 cSt) hydraulic oil
  • Direct reading
  • Install in any position
  • 360° rotatable guard/scale
  • Easier to read linear scale
  • Good viscosity stability (40 to 500 SUS / 4.2 to 108 cSt)
  • No flow straighteners or special piping required
  • 1/2, 3/4 and 1 inch series – needle valve
  • 1-1/4 and 1-1/2 inch series – ball valve

Pressure gauge, glycerin dampened:
  • 0 - 3500 psi (0 - 240 bar) for aluminum & brass meters
  • 0 - 6000 psi (0 - 400 bar) for stainless steel meters

EZ-View® In-Line Flow Meters

End fittings in brass, 303 stainless steel or PVC
Available in sizes from 1/2" to 2"
Temperatures to 250°F (121°C)
Pressures up to 325 psi (22.4 bar)
Accuracy of ±5% of full scale
Flow-AlertTM models available

EZ-View® In-Line Flow Meters


The Hedland Flow Meter product line includes over 10,000 in-line variable area flow meters, designed to monitor oil, phosphate ester, water and water-based emulsions, air and other compressed gases. Hedland offers flow meters constructed of high-performance materials including: Anodized Aluminum, Brass, and Stainless Steel. The Hedland meters are easy to install, operate in any position (no flow straighteners or special piping needed) and are accurate to ± 2% of full scale.

Aluminum meters are offered as a rugged, low cost flow meter for monitoring non-corrosive water-based or petroleum-based fluids in flow ranges up to 300 GPM (1100 LPM) and pressures up to 3,500 psi (241 bar).

Brass models are recommended for water systems or other applications where galvanic corrosion could become a problem. Brass meters are rated to withstand pressures up to 3,500 psi (241 bar), and are available up to 150 GPM (560 LPM).

For higher pressure systems we recommend our T303 Stainless Steel models, and for corrosive or caustic fluids, we recommend our T316 Stainless Steel meters. These meters can withstand pressures up to 6,000 psi (414 bar) with flow ranges up to 150 GPM (560 LPM).

The standard flow scale for liquids is calibrated in GPM and LPM at .876 specific gravity for petroleum, 1.18 s.g. for phosphate ester, 1.0 s.g. for water and water-based emulsions, 1.0 s.g. for air and compressed gases. Special scales are also available in other units of measure or specific gravities. The pneumatic meters are offered with a unique multi-pressure flow scale, calibrated to indicate flow rate, in standard cubic feet per minute (SCFM), or liters per second (LPS), at various pressure from 40 to 130 psi (3 to 9 bar)


Call the Flow Specialists at! Phone: 866-905-7211. We're available M-F, 8am - 5pm Eastern Time.

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