Description
Flow-Mon is a specialist manufacturer of flow indicators, switches, and sight glasses producing cost-effective and robust flow solutions to industry for over 40 years. Our factory in North Yorkshire is equipped with the latest CNC technology, UKAS-accredited calibration equipment, and welding and fabrication facilities.
Our team of skilled and experienced engineers manufactures a broad range of products from simple low-cost sight indicators to large-capacity flanged units for heavy industrial use. Flow-Mon can offer a solution to suit most applications within the process control industry and the wider market.
We manufacture liquid and gas flow units for up to 12-inch process connections which are chemical resistant, accurate and can be fitted with several switch options, transmitters, and totalisers for use in hazardous areas. Bespoke products are frequently manufactured to meet customer specifications.
Large Flow Monitor
The large series units are designed to be robust, highly versatile and extremely reliable in the harshest of environments. They continuously monitor flow with a local indication, through a mechanical pointer, switch, transmitter or digital rate totaliser and can be manufactured in a variety of materials to suit a wide range of liquid, air and gas applications.
Maximum Flow Rates Maximum Pressure
- 3 inch 0 – 1500 l/min Low pressure up to 300psi (20 Bar)
- 4 inch 0 – 2000 l/min Medium pressure up to 725psi (50 Bar)
- 6 inch 0 – 3500 l/min High pressure up to 300psi (200 Bar)*
- 8 inch 0 – 5000 l/min *Cast iron, steel & stainless steel only
This unique modular design allows for easy field installation and service. No straight run of pipe is required before or after the monitor, minimizing pressure drop and the installation footprint. Vane-style flow meters have a spring-opposed vane that moves in relation to the flow rate. The fluid forces the vane to move through a contoured opening creating a variable orifice; the greater the flow the larger the orifice becomes for flow to pass. The vane style monitor is spring loaded and allows the vane to return on decreasing flows.
Benefits
- +/- 3% accuracy across full range
- Calibrated in any unit of measure
- Single or dual scale options
- Individually calibrated
- Simple modular design
- Low pressure drop
- Viscosities up to 600cSt
- Installed in any position
- 1% rate of repeatability switch set point – accurate & reliable
- Weatherproof enclosure box
- Capable of twice the maximum indicated flow
- Available in a wide range of materials
Applications
- Water
- De-Ionised Water
Soluble Oils (Glycols) - Petroleum Based Fluids
- Synthetic Based Fluids
- Coolants
- Corrosive Fluids
- Paints
- Solvents
- Air and Gases
Switches
Vane style flow meters can be connected to a field adjustable indicator or transmitter suitable for batching, trending, totalising or recording. Available options include:
- SPDT 3 and 4 wire mechanical switch (gold contacts available)
- DPDT 6 wire mechanical switch
- 4-20mA Output
- 0-10V potentiometer
- Digital rate totaliser (Pulse & Modbus options)
- ATEX variants available
Flow-Mon Flow Indicator Products
Plastic Sight Flow Indicator
The Plastic Sight Flow Indicator is a robust, low-cost industrial class flow indicator that is simple to install. It can be mounted
in any position from vertical to horizontal without any special connectors or plumbing.
Constructed of high impact polycarbonate plastic, this product offers excellent structural integrity and compatibility with a wide range of industrial chemicals. The transparent polycarbonate plastic body allows visual inspection of the fluid condition as well as viewing the centrifugal movement of the internal impeller.
Features & Benefits
- 1/4 inch to 1 inch BSP/NPT connection
- Easy to install in any position
- No special piping or connections required
- Robust with good shock and vibration resistance
- Resistant to a wide range of chemicals
- Temperature – 80°C (maximum working temperature)
- Pressure – 40 bar (maximum working pressure
Applications
- Water
- Oils
- Coolants
- Chemicals
- Corrosives
- Air and gases
Materials
- Body – Polycarbonate
- Impeller – PPS
- Spindle – Stainless steel 316
- Seals – Viton
- End caps – SS 316, Bronze,
- Aluminium, PVC.
Spinner Visual Sight Flow Indicator
The Flow-Mon Spinner is a low-cost, robust flow indicator that is simple to install and will outperform other spinner instruments by a considerable margin. This spinner design can be mounted both horizontally and vertically, offering bidirectional flow indication with low pressure losses. With a tough construction, this product offers excellent structural integrity and compatibility with a wide range of applications.
When calibrated flow indicators are not needed, this simple indicator will satisfy most requirements within pipe sizes 8mm
to 40mm. When operators require a visual confirmation in theirpipe work for lubrication and coolant flow, this simple Spinner
can provide a cost effective solution for plant protection.
Technical Data
- Body
- Stainless steel 316: ASTM-A-351
- 2000 GR CF8M
- Bronze BS EN1982, CuSn5Zn5PB5-C- GS (formerly LG2)
- Spinner – PPS
- Spindle – Stainless steel 316
- Glass Dome – Annealed Borosilicate
- ‘O’ Ring – Viton
- Gasket – Klingersil (C-4400)
- Fasteners – Stainless steel
- Pressure – 16 Bar (maximum working pressure)
- Temperature – 200°C (maximum working temperature)
- Connections
- BSP(F) parallel and NPT(F) taper
- Other connection types available on request
Feature & Benefits
- 1/4 inch to 1 1/2 inch connection available
- Easy to install in any orientation
- No routine maintenance required
- Unrivalled flow and pressure drop performance
- Bi-directional flow
- Operates over a wide flow range
- Robust with good shock and vibration resistance
Double Window – Spout, Flap & Spinner Visual Sight Flow Indicator
Description
The Flow-Mon Double Window Sight Flow Indicators are designed to provide the means of visual inspection for process operations and plant protection. The straight through windows allow the operator to view immediate flow and to monitor the colour and
condition of pipeline applications.
The plain spout enables visual inspection only while the flap variant with its’ graduated scale provides an indication of flow rate and repeatability of valve positioning. This variant is also available with a sprung flap to manage approximate flow that can be increased
up to three times. It is an ideal solution for use in vertical lines where gravity prevents the use of an untensioned flap.
A spinner variant equipped with an 8 blade PTFE spinner and stainless steel internals is ideally suited for chemical applications providing excellent corrosion resistance. All designs can be mounted in any pipeline orientation capable of managing a wide flow range.
These high quality, robust units are designed for a broad range of industrial applications with working temperatures up to 250ºC and working pressures up to 16 bar for the standard range and 40 bar for the high pressure range.
Features & Benefits
- High quality robust design
- Body cast in stainless steel or carbon steel (other materials available)
- Threaded or flanged connections
- Pressures up to 40 Bar
- Temperatures up to 250 degrees
- Can be mounted in any orientation (flap design horizontal and up only)
- CE Marked and fully compliant with the Pressure Equipment Directive
Technical Data
- Body :
- Stainless steel 316: ASTM-A-351-2000 GR CF8M
- Carbon Steel: ASTM-A-216-2000 GR WCB
- Spinner – PPS
- Spindle – Stainless steel 316
- Glass
- Toughened Borosilicate (DIN7080) (16 bar) or,
- Toughened Soda Lime (BIS 3463) (40 bar
- Gasket – PTFE
- Flap – Stainless steel 316
- Spinner – PTFE, PVC
- Scale – Polycarbonate
- Fasteners – Stainless steel A2
- Pressure – 16 Bar (maximum working pressure)
- Temperature – 250°C (maximum working temperature)
- Connections
- Threaded up to 2 inch BSP/NPT
- Flanged up to 10 inch; PN, ANSI, JIS
- Other connection types and larger sizes available on request
Flow Rate Indicator
Our Flow Rate Indicators are manufactured in a wide range of sizes and specifications providing flow solutions for a broad range of applications. They are designed to be robust, highly versatile and extremely reliable in the harshest of environments. They continuously monitor flow with a local indication, through a mechanical pointer, switch, transmitter or digital rate totaliser and, can be manufactured in a variety of materials to suit each application.
Design
This unique modular design allows for easy field installation and service. No straight run of pipe is required before or after the monitor minimizing pressure drop and the installation footprint. Vane-style flow meters have a spring-opposed vane that moves in relation to the flow rate. The fluid forces the vane to move through a contoured opening creating a variable orifice, the greater the flow the larger the orifice becomes for flow to pass. The vane style monitor is spring loaded and allows the vane to return on decreasing flows
Features & Benefits
- Calibrated in any unit of measure
- Single or Dual scale options
- Individually calibrated
- Simple modular design
- Low pressure drop
- Viscosities up to 600cSt
- 1% rate of repeatability switch set point – accurate & reliable
- Size range from 8mm (1/4”) to 200mm (8”)
- Installed in any position
- Weatherproof enclosure box
- Capable of twice the maximum indicated flow
- Available in a wide range of materials
Switches
Vane style flow meters can be connected to a field adjustable indicator or transmitter suitable for batching, trending, totalising or recording.
- SPDT 3 & 4 wire mechanical switch (gold contacts available)
- DPDT 6 wire mechanical switch
- 4-20mA Output
- 0-10V Potentiometer
- Digital Rate Totaliser
- ATEX variants available
Wafer Flow rate Monitor
The wafer is designed to mount between two flanges which reduces the weight, size and cost. They are robust, highly versatile and extremely reliable in the harshest of environments. They continuously monitor flow with a local indication, through a mechanical pointer, switch, transmitter or digital rate totaliser and, can be manufactured in a variety of materials to suit each application.
Style
This unique modular design allows for easy field installation and service. No straight run of pipe is required before or after the monitor minimizing pressure drop and the installation footprint. Vane-style flow meters have a spring-opposed vane that moves in relation to the flow rate. The fluid forces the vane to move through a contoured opening creating a variable orifice, the greater
the flow the larger the orifice becomes for flow to pass. The vane style monitor is spring loaded and allows the vane to return on decreasing flows.
Features & Benefits
- Direct reading Flow Rate Indication
- Optional (field adjustable) switch(es)
- Optional Non-Contact 4-20mA Output
- High Pressure available
- Mounts easily between ANSI, JIS or DIN flanges
- Mounts in any orientation
- No straight Pipe Run required
- Connection sizes from 3” to 12”
- Minimum Scale 0-40 LPM
- Maximum Scale on request
Switches
Are field adjustable, suitable for batching, trending, totalising or recording where required. All switch units can be supplied with a 0-10v or 4-20mA output.
Applications
Water, De-Ionised Water, Soluble Oils (Glycols), Petroleum Based Fluids, Synthetic Based Fluids, Coolants, Corrosive Fluids, Paints, Solvents, Air & Gases.
Further Documents Large Series Data Sheet
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