Flow Switches, Meters & Indicators



  • For domestic 15mm or 22mm pipes
  • 0.8-6 l/min switching range
  • 15mm / 22mm compression fittings
  • Rated to 8 Bar pressure
  • User adjustable
  • 0 - 500V 15Amp S.P.D.T switch or;
  • Low Voltage model also available ('RL' model)
  • Polypropylene or 316 Stainless models
  • Switches available with 3/4" & 1" BSP & NPT threads
  • Manual override built in to all 'F-H' models
  • Modular construction
  • High pressure 400 Bar 5800 psi models available
  • Seal-less magnetic drive
  • Weatherproof IP67 housing
  • Easily serviceable
  • 4 x paddles supplied with each switch
  • Pipe sizes from 25mm to 200mm
  • 1”BSP threaded pipe fitting
  • Brass or stainless steel option
  • 0.9 - 6.7 m3/h H2O switching range
  • C/O Micro-switch Rated 250Vac/5A
  • 4 x paddle supplied with each switch
  • Pipe sizes from 1” to 6” diameter.
  • Standard 1” BSP fitting
  • 0.19 to 39.90 m³/h switching ranges
  • Brass or stainless steel body
  • C/O Micro-switch Rated 250Vac/15A
  • For 25mm pipe sizes
  • Detects low flows from 0.1 l/min
  • 1”BSP connections
  • Pressure up to 100 bar
  • Max Flow 100 l/min
  • Reed switch or relay option
  • Nominal pipe sizes 10-50 mm
  • 3.5 - 69 l/min switching range
  • 3/8” - 2” BSP threaded connections
  • Low pressure loss
  • Brass or stainless steel option
  • C/O reed switch rated at 230Vac/1A
  • 8mm pipe size
  • 0.04 - 3 l/min switching range
  • 1/4” threaded connections
  • Pressure up to 350 bar
  • Brass or stainless steel option
  • -20..+100 °C optionally 160 °C
  • Nominal pipe sizes 10-50 mm
  • 1.3 - 35 l/min switching range
  • 3/8” - 2” BSP threaded connections
  • Low pressure loss
  • Brass stainless steel or plastic option
  • ATEX option available
  • Process connection: female thread 1/8 "NPT
  • Metering range: 0.005..25 l/min
  • Pressure resistance: PN 6 bar
  • Media: water, gases
  • Weight: 0.13 kg
  • 0 to 500V AC 15 Amp S.P.D.T switch
  • 316 Stainless Process Connection
  • Super Tough Billet Aluminium Housing
  • Manual override built in
  • 3/4” & 1” models available with BSP or NPT threads
  • 400 Bar (5800 psi) pressure rating
  • Seal-less magnetic drive
  • Dieselene & High Temperature versions available
  • Weatherproof IP67 housing
  • Easily serviceable
  • For 15mm to 25mm pipe sizes
  • Detects flows from 2.5 l/min
  • 1” BSP Threaded and PVC push fit
  • Pressure up to 18 bar
  • No metal wetted parts
  • 100 l/min max flow
  • Nominal pipe sizes 8-25 mm
  • 0.1 - 80 l/min switching range
  • 1/4” - 1” BSP threaded connections
  • Pressure 200 bar (500 bar option)
  • Brass or stainless steel option
  • Viscosity compensated version(HD2K)
  • Nominal pipe sizes 10-50 mm
  • 4 - 93 l/min switching range 3/8” - 2” BSP threaded connections
  • Low pressure loss
  • Brass or stainless steel option
  • C/O micro switch rated at 250Vac/5A
  • 40 to 200mm nominal width
  • 40 to 1050 l/min switching range
  • -20-+90 °C (-20-+200 °C option VMX)
  • Flange process connection DIN 2527
  • Precise stepless adjustment
  • ATEX option available
  • Nominal width: DN 8.0.25
  • Process connection: female thread G 1/4..G 1
  • Display range: 0.7..60 l/min
  • Pressure loss: up to 0.7 bar
  • Pressure resistance: up to 0.7 bar
  • Pressure resistance: PN 16 bar
  • Nominal pipe sizes up to 80mm
  • 5-174 l/min switching range
  • Brass / Stainless Steel / Plastic Welded 
  • 1/2″ BSP connection
  • Low Pressure Loss
  • ATEX option
  • Momentary value indicator and totalisation
  • Pulse output with adjustable pulse per volume
  • Antivalent outputs
  • Analogue output of the momentary value
  • Simple guided menu via graphics display
  • Metal insert up to 30 l/min.
  • Media temperature up to 300°C
  • Nominal widths DN 15 and DN 20
  • Brass/stainless steel materials
  • Optional installation
  • No wear-parts
  • No additional power supply
  • For 32-50 mm pipe size
  • 2-220 l/min switching range
  • 1 1/4” - 2” threaded connections
  • Brass or stainless steel option
  • Pressure up to 200 bar
  • Viscosity stabilised
  • Suitable for both liquids & gases
  • 3/8″ to 2″ BSP sizes
  • Optional high & low switch points Optional 4 – 20mA transmitter
  • Pressures up to 16 bar
  • PVC or cast iron connections
  • For 15 mm nominal width
  • 0.4-12 l/min switching range
  • 1/2” male threads
  • Integrated filter
  • Plastic wetted parts
  • Up to 10 bar pressure
  • For 15 mm pipe size
  • 1 l/min switching point
  • 1/2” threaded connections
  • Bi-directional flow switching
  • Pressure up to 300 bar
  • Viscosity stabilised
  • Nominal pipe sizes 8-25 mm
  • 0.1 - 80 l/min switching range
  • 1/4” - 1” BSP threaded connections
  • Optionally side or top displays
  • Brass or stainless steel option
  • Viscosity compensated version(HD2F)
  • Nominal pipe sizes 8-25 mm
  • 0.4 - 60 l/min switching range
  • 1/4” - 1” BSP threaded connections
  • Pressure 200 bar (500 bar option)
  • Brass or stainless steel option
  • -20..+120 °C (-20..+150 °C option)
  • Nominal pipe sizes 8-25 mm
  • 1 - 11 l/min switching range
  • 1/4” - 1” BSP threaded connections
  • Not affected by dirt
  • Brass connection material
  • 230Vac/0.5A reed switch
  • No moving parts internally
  • Internal wiper provides ability to clean the glass without removing the device.
  • Installation location as desired    
  • For heavily soiled or coloured fluids    
  • 360 ° visibility
  • For 8 mm pipe
  • 0.005 - 5l/min display ranges
  • 1/4” BSP threaded connections
  • Maximum temperature 100 °C
  • Switching contact option(VFR)
  • Brass or Stainless Steel
  • All plastic (POM or PVDF) flow indicator
  • Can be installed in any position
  • Low ‘start-up’ benefit due to low friction design
  • 3/8″ and 1″ BSP sizes
  • Maximum pressure 16 bar
  • Maximum temperature 60ºC
  • Easy to fit to existing pipework
  • Sizes from 1/4″ to 2″ BSP
  • Large glass area allow viewing from any direction
  • Maximum pressure 6 bar
  • Maximum temperature 70°C
  • Brass body
  • Integral flow indicator & scale
  • Brass housing
  • Plastic sight glass
  • Ranges from 0.6 to 8 l/min
  • Temperatures up to 100°C max
  • Max pressure 10 bar
  • 3/4″ BSP male/female thread EPDM Seals
  • Rotor on both sides directly behind natural glass
  • Installation location as desired
  • Mechanical flow indicator
  • With twin rotor for quantitative flow display
  • Medium temperature 100°C
  • High temperature resistance
  • Double-sided large-surface window
  • Natural glass
  • Display of flow rate
  • High temperature resistance
  • Double-sided large-surface window
  • Natural glass
  • Visualisation of the flow rate
  • Ball rises in glass dome to indicate flow
  • Stainless steel body
  • Sizes from 1/4" to 1½" BSP
  • Maximum temperature 200°C
  • Maximum pressure 16 bar
  • Suitable for liquids and gases
  • Nominal pipe sizes 8mm to 80 mm
  • 1 - 600 l/min switching ranges
  • 1/4” -3” BSP threaded connections
  • Medium Temperature -20 °C to 120 °C
  • 720 l/min max flow
  • ATEX option available
  • Nominal pipe sizes 15mm to 100 mm
  • 2 - 1600 l/min switching ranges
  • Flanged process connections
  • Medium Temperature -20 °C to 120 °C
  • Up to 8000 l/min max flow
  • ATEX option available
  • For 25mm pipe sizes
  • Detects low flows from 0.23 l/min
  • 1” BSP male to 1” BSP female thread
  • Pressure up to 200 bar
  • Rated from -20 °C to 90 °C
  • 100 l/min max flow
  • Nominal pipe sizes up to 200mm
  • 1.2 - 34 m3/h switching range
  • Transparent cover to view operation
  • 1” BSP thread / flange options
  • Silver or gold contacts options
  • Suitable for media with ferric particles
  • 40 to 100mm nominal width
  • 50 to 1050 l/min measuring range
  • For fluid or gaseous media
  • Large analogue display
  • Simple adjustment using gauge
  • Brass or stainless steel options
  • Nominal pipe sizes 10mm to 80mm
  • 2 - 500 l/min switching ranges
  • Screw Connection with socket
  • Medium Temperature -20 °C to 60 °C
  • 250 l/min max flow
  • No contact switching
  • Signal conditioning – Linearisation – Characteristic adjustment
  • Input for standard signals 0/2..10 V and 0/4..20 mA
  • Measuring range programmable
  • Linearisation and characteristic adjustment programmable via 32 bases
  • Automatic input fault detection
  • Simple and affordable flow transmitter for pipe diameters of DN32 or larger
  • Plastic version    
  • Suitable for retrofitting in existing pipelines with tapping clamps or weld-on nozzles
  • Simple and affordable flow transmitter for pipe diameters of DN32 or larger
  • Stainless steel version
  • Suitable for retrofitting in existing pipelines with tapping clamps or weld-on nozzles
  • Intrinsically safe use of Pt100 sensors
  • Intrinsically safe use of 0(4)…20 mA sensors
  • Intrinsically safe use of 4…20 mA, loop-powerd indicators
  • Measuring range 0..50 Ω up to 100 kΩ
  • Processor technology with 12 Bit AD/DA-converter
  • Teach-in programming for start- and end-value    
  • Increase or decrease output characteristic programmable
  • Operation mode indicated by use of a 2-color LED
  • Flow transmitter for water and other liquids with integrated temperature measurement
  • Fast response timeIntegrated volume meter with preset
  • Measuring method without moving parts, no wear
  • Stainless steel material coming into contact with medium
  • 1 analog output (20 mA / 10 V)
  • 2 versatile configurable switching outputsIO-Link interface
  • High-resolution graphic LCD Parameters programmable with multifunction ring
  • Waterproof all-metal housing (IP67)
  • Mineral glass front, scratch-proof and chemically resistant
  • Flow transmitter with display
  • For pipe diameters of DN32 or larger
  • Plastic version
  • Suitable for retrofitting in existing pipelines with tapping clamps
  • Analog output 4..20 mA or 0..10 V
  • Two programmable switches
  • Selectable units in the display
  • Parameter change via rotating ring
  • Electronics housing with non-scratch, chemically resistant glass
  • Rotatable electronic housing for best reading position
  • Flow transmitter with display
  • For pipe diameters of DN 32 or larger
  • Stainless steel version
  • Suitable for retrofitting in existing pipelines with tapping clamps
  • Analog output 4..20 mA or 0..10 V
  • Two programmable switches
  • Selectable units in the display
  • Parameter change with rotating ring
  • Electronics housing with non-scratch, chemically resistant glass
  • Rotatable electronic housing for best reading position
  • Metal inserts up to 210 l/min.
  • Media temperature up to 200°C
  • Nominal widths DN 32 to DN 80
  • Brass/stainless steel materials
  • Male thread Installation location as desired
  • No need for auxiliary power
  • Can be used on site for: parameter modification, firmware update, adjustment of inputs and outputs
  • Can be connected via USB