Flow Switch, Flow switches, Flow transmitters, Air flow switch, Air flow switches

Flow Network specializes in flow sensing products for liquid and air flow. We supply only the highest quality, time tested products and support them with many years of flow applications experience. We pride ourselves on understanding the customer’s requirements and specifying the best solution possible, at the most economical price.
Our team of applications and sales support personnel stand ready to help with your flow and level applications and look forward to becoming your preferred flow source.......Thank you for visiting our site.

Fuel Monitoring Systems- PDD Series

The Industry: Ship & Yacht Building

The Application: Fuel System Monitoring

The manufacturer makes fuel filtering and monitoring systems for large yachts and small commercial ships (> 100 foot)

Automatic Liquid-Solid Separator KAL-D

The Industries: Municipal Industrial Commercial

The Application: Pump Protection

General Manufacturing
Waste Water Treatment
Car/Truck Washes

Vacuum Furnace TDD/KAL-D

The Industry: Processing of Metals and Special Alloys

The Application: Cooling circuits for the vacuum Casting and Melting systems

The Problem: Customer needed reliable flow and temperature switching in a compact design

Ventilation Systems For Subway Trains - PS Series

The Application: Air flow detection in rail car HVAC systems

The Solution:

New York City Transit Authority used our switch to replace a competitor due to malfunctions
Rocking of trains caused false switching of competitor’s switch

ADDITIONAL APPLICATIONS CAN BE FOUND IN OUR APPLICATION SECTION, Click here

VKG - Viscosity Compensating Flowmeter & Flow Switch

±5% Full Scale Accuracy
For High and Low Viscosity
Viscosity-Compensated up to 540 cSt
(No Scale Recalibration Necessary)
Density-Compensated up to 30 lb/ft3
Direct Reading Scales for Oil
Flow meter or flow switch

FM Series flow switch and flow transmitter

Full scale flow ranges from 1 to 1200 GPM and 10 SCFH to 10,000 SCFM
Connection sizes from 1/4-inch to 8-inch NPT, BSP, flange, sanitary or victaulic
Construction materials: Brass, 316L S.S., Cast Iron, Aluminum, or Carbon Steel
Available as a flow indicator, flow transmitter, flow switch

HFS/HFT Flow Switch and Flow Transmitter

Direct Reading Flow Rate, Flow Indicator, or Flow Switch
Optional Flow Switch(es)
Optional (field selectable) transmitter outputs of:4-20mA, 0 to 5 VDC, or 1 to 5VDC, square wave pulse
Pressures up to 6000 PSIG (413 Bar)
Maximum Temperatures to 600°F (315°C)

KDM - All-Metal Armored Flowmeters

Short Installation Length
SS, PTFE or Hastelloy Wetted Parts
Analog Output Available
– 110 °F to + 390 °F Temperature Range (Higher on Request)
Pressures to 300 lb ANSI (Higher on Request)

Flow Switches

Flow Transmitters

SV Series Direct Reading Variable Area Flow Meter, Flow Indicator, Flow Switch

±4% Full Scale Accuracy
Small, Compact Design, Low Weight
Direct Reading Scales for Water and Air
Large and Small Measuring Ranges from
Flow Meter or Flow meter with Flow Switch Available
Vertical Connections for Easy Installation
All Media Contacted Parts *Available in Brass or Stainless Steel Construction

KAL-A Flow Transmitter, Flow Rate Indicator with optional Flow Switch output

Analog Flow Transmitter output 4-20 MA
Trend display with 8 LED’s
Addition of adjustable Flow Switch Set Point as option
Explosion proof or 3A Sanitary options

KAL-K Flow Switch with Flow Rate Indicator

Flow Trend and Flow Switch set-point display with 8 LED’s
Operating Temp up to 250F
PNP N.O. or N.C. output or optional Dry Contact output
24VDC or 120VAC power options
Explosion Proof and 3A Sanitary options

VKM Viscosity Compensating Flow Meter or Flow Switch

±5% Full Scale Accuracy
Viscosity-Compensated up to Δv=540 cSt
(No Scale Recalibration Necessary)
Optional 4-20 MA Flow Transmitter output with digital scale
Direct Reading Scales for Oil
Installable in any Position
Optional Flow Switch output

KAL-D Flow Switch with Flow Trend Display

Calorimetric Flow Switch
No Moving Parts
Flow Switch Range 0.15 to 6.6 Ft/Sec
Max. Pressure 580 PSIG
Max. Operating Temperature 210°F
Clean-In-Place to 250°F
¼ or ½ NPT or BSP connection

DF-K Paddle Wheel Flow Meter with Flow Switch Setpoints

Water 0.02-0.14 GPM….1.5-36 GPM
Temp range -10 to +180F
Pressure up to 1,450 PSIG
Connection ¼ - 1.1/2 FNPT
Accuracy 2.5% full scale
Two separate Flow Switch Relay Outputs

PRO-50 Flow Switch with Flow Trend Display

The new captor P-R-O 50 Flow Switch is for applications requiring RELATIVE measurement and set-point of flow rate. This means that the actual velocity of the flow or the quantitative measurement in GPM is not known and is not important. What is important is that the Flow Switch set-point can be set as a “percentage of” or “relative to” the full flow rate. No other flow switch could do it this simply or effectively.

Model 4115.30 Flow Transmitter

Self-Contained Flow Meter for All Measurement & Control Applications for Liquids & Semi-Solids
Wide Measurement Range
Non-Intrusive Sensing
Liner Current Output
No Moving Parts
Stainless Steel Sensing Surface

Model 3202 Air Flow Switch

Compact Air Flow Switch with Transistor switch output
Types Available with a Wide Air Flow Switch setpoint range of 0-20 m/s
Air Flow Switch comes as NPN or PNP, N.O. or N.C.
Compact design, small footprint, easy to install
24VDC Powered

Model 3202.30/xx Air Flow Transmitter

Compact Air Flow Transmitter with (Output 4 to 20 mA )
Types Available with a Wide Flow Range from 0-5 m/s up to 0-50 m/s
Range for Each Type is Adjustable to Min. 20%
Compact design, small footprint, easy to install
24VDC Powered

FPS – Insertion Paddle/Bellows Flow Switch for liquids

Adjustable Flow Switch Set-Point
Position-Independent Installation
Maximum Pressure 160 PSI/450 PSI
Brass and SS Construction
Micro Switch Flow Switch output
Maximum Media Temperature: 250°F

DRG – Paddle Flow Sensor with Optional Flow Switch or Analog output

Economically Priced
OEM Flow Sensor
Five Material Combinations
Flow Meter Ranges 0.15-3 GPM to 3-37 GPM
Frequency, 4-20 mA Flow Transmitters or Compact Electronics with PNP Output Flow Switch
All Plastic Versions Available