Orange Research home page    

Orange Research home pageDifferential pressure gauges, switches and transmitters selection guideFlow gauges, switches and transmitters selection guideOrange Research contact

 

Gas & Liquid Flow Selection Guide

Flowmeters, Switches, and Transmitters

Flowmeters, flow switches and flow transmitters from Orange Research provide accuracy and reliability in affordable, rugged packages. These industrial quality flow devices combine modern technology and materials with a familiar easy-to-read pointer and dial gauge. A patented magnetic movement allows flow sensing at high line pressures and operation in any orientation. >> More about our flow meters, flow switches and flow transmitters

Click on Model Number to Access Details

 

 

Fixed-orifice flow sensor cutaway

FIXED ORIFICE

click image

to enlarge

Variable-area flow gauge cutaway

VARIABLE AREA

click image

to enlarge

Flow Products:

Model

Sensor

type

Range: liquids

     min.              max

 Range: air & gas

       min.               max

Max. line

pressure

Port

connect.

Switch

enclosure

2021

Fixed orifice

0-2 GPH 0-40 GPH

1.5-5 SCFM

1.5-5 SCFM

3000 psi

1/4" NPT No enclosure
       

 

 

 

   
2221 Variable area 0-1 GPM 0-5 GPM

1.5-10 SCFM

3-25 SCFM

3000 psi

1/4" NPT No enclosure
2221
(PVC)
Variable area 0-1 GPM 0-5 GPM

N/A

N/A

200 psi

1/4" NPT No enclosure
2223 Variable area 0-1 GPM 0-5 GPM 1.5-10 SCFM

3-25 SCFM

5000 psi

1/4" NPT Nema 4X, Class 1-Div. 2
2321 Variable area 0-1 GPM 0-10 GPM 3-30 SCFM

10-100 SCFM

3000 psi 1/2" NPT No enclosure
2323 Variable area 0-1 GPM 0-10 GPM

3-30 SCFM

10-100 SCFM 

5000 psi

1/2" NPT Nema 4X, Class 1-Div. 2
2421 Variable area 0-10 GPM 0-30 GPM N/A

N/A

1500 psi

1" NPT No enclosure
2423 Variable area 0-10 GPM 0-30 GPM N/A

N/A

1500 psi

1" NPT Nema 4X
       

 

 

 

   
2510 DP flow 0-5 GPM 0-10 GPM N/A N/A

275 psi

1/2" NPT No enclosure
2520 DP flow 0-15 GPM 0-40 GPM

N/A

N/A

275 psi

1" NPT No enclosure
2530 DP flow 0-50 GPM 0-200 GPM N/A N/A

275 psi

2" NPT No enclosure
         

 

 

   
30000 Piston 0.1 GPM 1.5 GPM N/A

N/A

1000 psi

1/4" NPT Built into pressure body

 

Fixed Orifice, Variable Area, and DP Flow

Our fixed-orifice models are best for low-flow applications. They are able to measure down to 2 GPH, so small changes in flow rate can be seen and users alerted. Because these models use a fixed orifice, users must consider two factors: abrasive fluids and fluids that may leave deposits. This can affect accuracy over time by changing the size of the orifice. >> More about our fixed-orifice models

Our variable-area models use a larger orifice and a moveable flow cone, which reduces the potential for clogging. We offer specially designed flow cones for use under harsh conditions where dirt and debris may be present, such as in wastewater or construction site environments. Another benefit is the variable-area sensor allows for readings on a linear scale, often preferred over square root meters. >> More about our variable-area models

Our DP flow models have directly connected, large-throated, non-clogging flow nozzles. The flow nozzle design is a long life, wear-resistant element that provides many years of service. Our differential pressure gauges are known worldwide as the rugged, "install them and forget them" type of flowmeters. >> More about our DP flow models

Our 30000 Series is a fixed set-point flow switch. Their compact size and basic profile results in low-cost switches that can be mounted where space is limited. This makes them popular for OEM applications where simple flow switch actuation is required. >> More about our fixed set-point models

 


Orange Research Incorporated • 140 Cascade Boulevard • Milford CT 06460
(203) 877-5657 • FAX: (203) 783-9546 • Toll-Free: 1-800-989-5657