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Flow METER –
High Pressure

HIGH FLOW / PRESSURE – Variable Area

0-1 to 0-30 GPM (liquid)
1.5-10 to 1-100 SCFM (gas)

 

Features

Check Large, easy-to-read dial
Check Rugged, high line pressure design
Check Vertical or horizontal mounting
Flow Meter High Pressure

FLOW METER – HIGH PRESSURE – Specifications

How To Order

Model Flow Range Maximum Line Pressure/
Temperature
Accuracy
F.S./
Repeatability
Turndown Electrical
Available*
Specifications
PDF
Instructions
PDF
Drawing
PDF
Replacement
Parts
PDF

2221FG/FGS/FS

Porting: 1/4" NPT

Liquids
0-1 to 0-5 GPM
(0-3.8 to 0-19 LPM)

Air & Gas
1.5-10 to 3-25 SCFM
(40-280 to 75-700 SLPM)
3000 psig (200 bar) 200°F (93°C) 2%/1%

10:1 1 or 2 switches Download Download Download Download
2223FGS/FS/FGT/FT

Porting: 1/4" NPT
Liquids
0-1 to 0-5 GPM
(0-3.8 to 0-19 LPM)

Air & Gas
1.5-10 to 3-25 SCFM
(40-280 to 75-700 SLPM)
5000 psig (340 bar) 200°F (93°C) 2%/1%

10:1 1 or 2 switches
1 relay
transmitter
NEMA 4X
Class 1-Div. 2
Download Download Download Download
2321FG/FGS/FS

Porting: 1/2" NPT

Liquids
0-1 to 0-10 GPM
(0-3.8 to 0-40 LPM)

Air & Gas
4-30 to 10-100 SCFM
(100-850 SLPM)
3000 psig (200 bar) 200°F (93°C) 2%/1%
10:1 1 or 2 switches Download Download Download Download
2323FGS/FS/FGT/FT

Porting: 1/2" NPT
Liquids
0-1 to 0-10 GPM
(0-3.8 to 0-40 LPM)

Air & Gas
4-30 to 10-100 SCFM
(100-850 SLPM)
5000 psig (340 bar) 200°F (93°C) 2%/1%

10:1 1 or 2 switches
1 relay
transmitter
NEMA 4X
Class 1-Div. 2
Download Download Download Download
2421FG

Porting: 1" NPT
Liquids Only
0-10 to 0-30 GPM
(0-40 to 0-115 LPM)

1500 psig (100 bar) 200°F (93°C) 2%/1% 10:1 1 or 2 switches Download Download Download Download
2423FGS/FS

Porting: 1" NPT
Liquids Only
0-10 to 0-30 GPM
(0-40 to 0-115 LPM)
1500 psig (100 bar) 200°F (93°C) 2%/1% 10:1 1 or 2 switches
1 relay
NEMA 4X
Download Download Download Download

F=Flow S=Switch T=Transmitter

* NEMA 4X switch models have a 1/2 inch NPT conduit port as standard. A DIN 43650A-PG11 with mating connector is optional,  rated IP65 & NEMA 4X.

 

Dimensions

Flow Meter High Pressure 2221 Flow Meter High Pressure 2421 Flow Meter High Pressure 2323

FLOW METER – HIGH FLOW – Features

Variable-Area Flow Meters

Our flow meters are designed for those applications where a rotameter is not appropriate. Consider the inherent problems of rotameters - they are difficult to read, especially with dirty or opaque fluids, have low pressure ratings and allow vertical orientation only. Now consider that Orange Research high pressure flow meters have large dials with bold markings and characters that are easy to read from a distance, handle high line pressures and can be mounted in any orientation.

Like rotameters, flow meters are mounted directly in the flow stream, but with bodies machined from solid blocks of metal, they handle high-pressure applications of up to 5000 psi (vs 150 psi for rotameters). This makes flow meters a natural for hydraulic and pneumatic systems.

These variable-area high pressure flow meter models are designed for medium- to high-flow applications. The flow meter sensor, a movable Delrin cone, rests in a precision orifice. Changes in fluid flow cause the sensor to move against a stainless steel spring while the flow rate is indicated on an easy-to-read dial face.

We offer our high pressure flow meters with bodies (and wetted parts) of aluminum, stainless steel or brass. A variety of dial sizes are available, from 2.5 inch to 4.5 inch. Choose from a wide selection of standard options; enough to satisfy any requirement.

Switches, Relays, Transmitters

A variety of reed switches, relays and transmitters can accompany our high pressure flow gauges or they can be supplied on their own, without a dial. SPST switches are offered normally open (N.O.) or normally closed (N.C.). SPDT reed switches also are available. DPDT relays are offered for high inductance applications, such as those incorporating motors or solenoids. Transmitters offer a current or voltage output.

Calibration

Liquid Flow Meter High Pressure Models

For liquids our high pressure flow meters are calibrated to customer-specified specific gravity and viscosity of the fluid to be measured (up to 150 CS). Otherwise, standard calibration is on water at 70° F. For oil service, flow meters are calibrated using oil (specific gravity 0.86 CS at 74° F). Special calibration is available to meet customers' specific gravity and viscosity requirements using selected fluids and a conversion procedure. Standard calibration is for horizontal mounting; vertical is offered at no charge.

Air and Gas Flow Meter High Pressure Models

For air and gas applications, our high pressure flow meters are calibrated on air at 100 psig at 70° F. For non-standard fluids or conditions, a conversion procedure is required. Because gas is compressible, please supply pressure and temperature conditions and type of gas when the order is placed so that the density of the gas can be taken into account and noted on the dial face.

Orders & Quick Questions Form

Required fields noted with *

How to Order HIGH PRESSURE FLOW METERS

Select from each of the applicable categories to construct a model number, and write down the model number for future reference. If you are reordering you must supply the Part Number from your instrument label. Contact Orange Research or local Orange Research distributors for additional options and pricing information.

Sample Model Numbers

Gauge (w/switch option): 2323FGS - 1A - 2.5B - A 0 - 10 GPH - W, 5 switch to close at 7 GPM ascending

Switch only (no gauge): 2323FS - 1A - A 0 - 10 GPH , W switch to close at 7 GPM ascending

 

Model Flow Body Dial Case Electrical Range Calibration Options
2221FG
2221FGS
2221FS
2223FGS
2223FS
2321FG
2321FGS
2321FS
2323FGS
2323FS
2421FG
2423FGS
2423FS

More models
above
In-line ports:
1A = aluminum
1C = 316 SS
1E = brass
(optional)
2.5B = 2.5" basic
3.5B = 3.5" basic
4.5B = 4.5" basic

Change "B" to "F"
above for flanged
dial case
(optional)
A = SPST, N.O.
B = SPST, N.C.
C = SPDT
A-A = 2 ea. - A
B-B = 2 ea. - B
C-C = 2 ea. - C
R2 = relay
T2 - transmitter
Liquid
1-0, 0-2, 0-4, 0-5, 0-8, 0-10, 0-15, 0-20, 0-25, 0-30 GPM

Air & Gas
2220 Series:
1.5-10, 2-15, 3-20, 3-25 SCFM

2320 Series:
4-30, 4-40, 5-50, 10-60, 5-75, 10-80, 10-90, 10-100 SCFM

2221/2223 Series
40-280, 80-560, 75-700 SLPM

2321/2323
Series

100-850 SLPM
W = std. calibr. -water
O = std. calibr. -oil
A = std. calibr. -air
S= special calibr.*

*Liquids: must specify
specific gravity and
viscosity

*Gas: must specify
gas, pressure and
temperature
5 = plastic lens
6 = liquid fill (glycerine)
8 = reverse flow
9 = vertical flow

(specify
direction – up or
downward)

Special Seals
(Buna-N standard):
T = Teflon
V = Viton

More flow options