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Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

For sales & general inquiries
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

For product support
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

For sales & general inquiries
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

For product support
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

Preso®

Preso® Differential Pressure flow meters are precision-engineered to offer exceptional turndown ratios and superior accuracy. Designed to accommodate any manufacturer’s pressure transducer, the Preso family offers a complete line of primary flow elements including Pitot tubes, venturi meters and wedge meters.

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Ellipse® AR Annular Flow Meter
Size
50…1820 mm
2...72 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
20…130,000 lpm
5.3...34,340 gpm
Pressure Range
Up to 55 bar
Up to 800 psi
Accuracy
±0.75%
±0.75%
Ellipse® AF Annular Flanged Flow Meter
Size
50…3048 mm
2...120 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
20…130,000 lpm
5.3...34,340 gpm
Pressure Range
Up to 55 bar
Up to 800 psi
Accuracy
±0.75%
±0.75%
Ellipse® AS Annular Steam Flow Meter
Size
50…1828 mm
2...72 in.
Temperature Range
Up to 250 °C
Up to 480 °F
Flow Range
10…80,000 lpm
2.6...21,130 gpm
Pressure Range
Up to 41 bar
Up to 600 psi
Accuracy
±0.75%
±0.75%
Ellipse® ASF Annular Flow Meter
Size
50…1220 mm
2...48 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
10…80,000 lpm
2.6...21,130 gpm
Pressure Range
Up to 55 bar
Up to 800 psi
Accuracy
±0.75%
±0.75%
Ellipse® AHR Wet Tap, Low Pressure Flow Meter
Size
50...1220 mm
2...48 in.
Temperature Range
Up to 66 °C
Up to 150 °F
Flow Range
20…130,000 lpm
5.3...34,340 gpm
Pressure Range
Up to 5 bar
Up to 150 psi
Accuracy
±0.75%
±0.75%
Ellipse® AHL Annular Flow Hot Tap, High Pressure Flow Meter
Size
50…762 mm
2...30 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
20…130,000 lpm
5.3...34,340 gpm
Pressure Range
Up to 55 bar
Up to 800 PSI
Accuracy
±0.75%
±0.75%
Ellipse® AHS Annular Hot Tap, Steam Flow Meter
Size
50...610 mm
2...24 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
20...40,000 lpm
5.3...10,570 gpm
Pressure Range
Up to 55 bar
Up to 800 PSI
Accuracy
±0.75%
±0.75%
Ellipse® AHF Annular Flanged, Hot Tap Flow Meter
Size
50…1219 mm
2...48 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
20…79,986 lpm
5.3...21,130 gpm
Pressure Range
Pressure and temperature depend on flange ratings PSI
Pressure and temperature depend on flange ratings PSI
Accuracy
±0.75%
±0.75%
Ellipse® AHZ Annular Flanged, Hot Tap Steam Flow Meter
Size
50...1830 mm
2...72 in.
Temperature Range
Up to 426 °C
Up to 800 °F
Flow Range
9.8...129,991 lpm
2.6...34,340 gpm
Pressure Range
Up to 55 bar
Up to 800 PSI
Accuracy
±0.75%
±0.75%

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Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

For sales & general inquiries
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010

For product support
Municipal water solutions: (800) 616–3837
Commercial & Industrial solutions: (877) 243–1010