variable area flow meters
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Hedland has been a manufacturer of quality
flow measurement solutions for over 30 years. Since the introduction
of the Hedland Variable Area Flow Meters for hydraulic oil, their
product line has grown to over 10,000 flow meter models including
turbine flow meters, positive displacement flow meters, transit time
ultrasonic flow meters, switches and transmitters. These products
provide cost effective flow measurement in the following
applications: oil, phosphate esters, water, water-based fluids, air,
and other compressed gases.
Hydraulic Supply Co. is located in Florida
and Georgia, and is a distributor for Hedland® variable area flow meters
See our Company
Overview to find out more about us.
Our on-line Stock
Products Catalog includes variable area Hedland flow meters and has over 1400 pages of hydraulic, pneumatic and
fluid conveying products to choose from - and every one of them is in
stock and available for immediate delivery.
Click on “Order On-line” for browsing product categories, checking price and quantity on hand, order entry and much more.
See our Contact
Us page to get in touch and get the help you need with your
variable area flow
meters
requirement.
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Variable Area High Pressure flow
meters
For Petroleum Fluids |
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Hedland® Variable Area High Pressure |
Basic Flow Meter
Direct reading
Install in any position
360° rotating guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Good viscosity stability (40 to 500 SUS)
Temperature up to 240 °F
Pressure up to 6,000 psi maximum
Accuracy ±2% full scale
Repeatability ±1%
Standard calibration: .876 specific gravity, 140 SUS hydraulic oil
Construction: Aluminum, brass and T303 stainless steel
Flow range: 0.02 to 300 GPM
Sizes: 1/4 to 3 inch ports
Ports: SAE, NPTF, BSPP, Code 61 and Code 62, 4-bolt flanged
Optional:
- Special scales available
- Reverse flow by-pass |
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Variable Area High Pressure flow
meters
For Phosphate Ester Fluids |
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Hedland® Variable Area High Pressure |
Basic Flow Meters
Direct reading
Install in any position
360° rotatable guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Good viscosity stability (40 to 500 SUS)
Consult factory for other viscosities
Temperature up to 240 °F
Pressure up to 6,000 psi maximum
Accuracy ±2% full scale
Repeatability ±1%
Standard calibration: 1.18 specific gravity, 140 SUS hydraulic oil
Construction: Aluminum, brass and T303 stainless steel
Flow range: 0.02 to 150 GPM
Sizes: 1/4 to 1-1/2 inch ports
Ports: SAE, NPTF, BSPP, Code 62, 4-bolt flanged
Optional:
- Special scales available
- Reverse flow by-pass
CAUTION: Skydrol & fryquel oil may require a pyrex guard |
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Variable Area High Pressure flow meters
For Water Based Fluids |
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Hedland® Variable Area High Pressure |
Basic Flow Meters
Direct reading
Install in any position
360° rotatable guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Good viscosity stability (40 to 500 SUS)
Consult factory for other viscosities
Temperature up to 240 °F
Pressure up to 6,000 psi maximum
Accuracy ±2% full scale
Repeatability ±1%
Standard calibration: 1.0 specific gravity for water-based emulsions
Construction: Aluminum, brass and T303 stainless steel
Flow range: 0.02 to 275 GPM
Sizes: 1/4 to 3 inch ports
Ports: SAE, NPTF, BSPP, Code 61 and Code 62, 4-bolt flanged
Optional:
- Special scales available
- Reverse flow by-pass
CAUTION: Not recommended for water only applications |
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Variable Area High Pressure flow meters
For Water & Other Fluids |
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Hedland® Variable Area High Pressure flow meters |
Basic Flow Meters
Direct reading
Install in any position
360° rotatable guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Good viscosity stability
Temperature up to 240 °F
Pressure up to 6,000 psi maximum
Accuracy ±2% full scale
Repeatability ±1%
Standard calibration: 1.0 specific gravity
Construction: Brass and T303 stainless steel
Flow range: 0.02 to 150 GPM
Sizes: 1/4 to 3 inch ports
Ports: SAE, NPTF and BSPP
Optional: Special scales available |
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Variable Area High Pressure flow meters
For API Oil / Caustic & Corrosive Liquids |
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Hedland® Variable Area High Pressure |
Basic Flow Meters
Direct reading
Install in any position
360° rotatable guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Good viscosity stability
Temperature up to 240 °F
Pressure up to 6,000 psi maximum
Accuracy ±2% full scale
Repeatability ± 1%
Standard calibration:
0.876 specific gravity for oil
1.0 specific gravity for water
Construction: T316 stainless steel
Flow range: 0.1 to 100 GPM
Sizes: 1/4 to 1-1/2 inch ports
Ports: NPTF and BSPP
Optional:
- Special scales available
- Hostile environment kit for corrosive vapors and high temp |
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Variable Area High Pressure flow meters
For Air / Caustic & Corrosive Gasses |
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Hedland® Variable Area High Pressure |
Basic Flow Meters
Direct reading
Install in any position
360° rotatable guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Temperature up to 240 °F
Pressure up to 1,500 psi maximum
Accuracy ±2% full scale
Repeatability ±1%
Standard calibration: 1.0 specific gravity
Construction: T316 stainless steel
Flow range: 2 to 800 SCFM
Sizes: 1/4 to 1/12 inch ports
Ports: NPTF and BSPP
Optional:
- Special scales available
- Hostile environment kit for corrosive vapors and high temp |
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Variable Area High Pressure flow meters
For Air & Compressed Gasses |
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Hedland® Variable Area High Pressure |
Basic Flow Meters
Direct reading
Install in any position
360° rotatable guard/scale
Easier to read linear scale
No flow straighteners or special piping required
Relatively insensitive to shock and vibration
Temperature up to 240 °F
Pressure up to 1,000 psi maximum
Accuracy ±2% full scale
Repeatability ±1%
Standard calibration: 1.0 specific gravity
Construction: Aluminum, brass and T303 stainless steel
Flow range: 0.5 to 2200 SCFM
Sizes: 1/4 to 3 inch ports
Ports: SAE, NPTF and BSPP
Optional:
- Special scales available
- EP option for extended inlet cap with plugged pressure gauge port
- EG option for extended inlet cap with pressure gauge installed |
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Variable Area EZ-View® flow meters
For oil, water, air and compressed gases |
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Hedland® Variable Area EZ-View® |
Basic Flow Meters
Available in 1/2 to 2 inch ports
Offered in a wide variety of fitting styles
EZ to install in any position
No special piping or flow straighteners needed
No electrical connections
Direct reading indication
Accuracy within ±5%
Relatively insensitive to shock and vibration
Rugged polysulfone construction
Pressure up to
- 325 psi maximum for oil & water
- 125 psi maximum for air & gases
Temperature up to 250 °F maximum
Flow range: 0.5 to 28 GPM
Standard calibration:
- .876 specific gravity for oil
- 1.0 specific gravity for water & air
Optional: Special scales available |
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Related flow meter pages
flow meter
air flow meter
water flow meter
oil flow meter
inline flow meters
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