Flow METER –
High Flow

HIGH FLOW – Variable Area

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

Features

	Large, easy-to-read dial
	Rugged, high line pressure design
	Vertical or horizontal mounting

FLOW METER – HIGH FLOW – Specifications

How To Order

Model	Flow Range	Maximum Line Pressure/ Temperature	Accuracy** F.S./ Repeatability	Turndown	Electrical Available*
2221FG/FGS/FS Porting: 1/4" NPT	Liquids 0-1 to 0-5 GPM (0-4 to 0-20 LPM) Air & Gas 1.5-10 to 3-25 SCFM (40-280 to 75-700 SLPM)	3000 psig (200 bar) 200°F (93°C)	Liquids 2%/1% Air & Gas 5%/1%	10:1	1 or 2 switches
2223FGS/FS/FGT/FT Porting: 1/4" NPT	Liquids 0-1 to 0-5 GPM (0-4 to 0-20 LPM) Air & Gas 1.5-10 to 3-25 SCFM (40-280 to 75-700 SLPM)	5000 psig (340 bar) 200°F (93°C)	Liquids 2%/1% Air & Gas 5%/1%	10:1	1 or 2 switches 1 relay transmitter NEMA 4X Class 1-Div. 2
2321FG/FGS/FS Porting: 1/2" NPT	Liquids 0-1 to 0-10 GPM (0-4 to 0-40 LPM) Air & Gas 4-30 to 10-100 SCFM (100-850 SLPM)	3000 psig (200 bar) 200°F (93°C)	Liquids 2%/1% Air & Gas 5%/1%	10:1	1 or 2 switches
2323FGS/FS/FGT/FT Porting: 1/2" NPT	Liquids 0-1 to 0-10 GPM (0-4 to 0-40 LPM) Air & Gas 4-30 to 10-100 SCFM (100-850 SLPM)	5000 psig (340 bar) 200°F (93°C)	Liquids 2%/1% Air & Gas 5%/1%	10:1	1 or 2 switches 1 relay transmitter NEMA 4X Class 1-Div. 2
2421FG Porting: 1" NPT	Liquids Only 0-10 to 0-30 GPM (0-40 to 0-110 LPM)	1500 psig (100 bar) 200°F (93°C)	Liquids 2%/1%	10:1	1 or 2 switches
2423FGS/FS Porting: 1" NPT	Liquids Only 0-10 to 0-30 GPM (0-40 to 0-110 LPM)	1500 psig (100 bar) 200°F (93°C)	Liquids 2%/1%	10:1	1 or 2 switches 1 relay NEMA 4X

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.

** Applies to standard calibration - for special calibration accuracy see specfications sheet.

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 our high pressure flow meters a natural for hydraulic and pneumatic systems.

These variable-area 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 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 meters, 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 Flow Models

For liquids our high flow 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, high pressure 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 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 FLOW METERS for High FLow Applications

Select from each of the applicable categories to construct a high pressure flow meter 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 High Pressure Flow Meter 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 *Follower pointer N/A with glycerin fill. More flow options

WARNING: This product contains Nickel, a chemical known to the State of California to cause cancer. For more information go to: www.p65warnings.ca.gov