Hi Flow Inline Rotameter, Tube Type
Inline Pipe Rotameter, High Flow Variable Area Flow Meter
- Inline Hi Flow Variable Area Flow Meter or Tube Rotameter which has been designed to offer an economical solution for liquid flow measurements.
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Flow Range (LPM: Liter Per Minute) - (GPM: Gallon Per Minute)
- 20 to 100 LPM (5 to 30 GPM).
- 20 to 150 LPM (5 to 40 GPM).
- 80 to 220 LPM (20 to 60 GPM).
- Scale on LPM (liter per minute) and GPM (gallon per minute).
- Connection: 1.5" BSP Threaded Male.
- Simple installation, threaded connection.
- Type: Tube Mount, Pipe Mount.
- Body: Acrylic.
- Float & Leader: Stainless Steel.
- Fittings: ABS.
- O-ring: Silicon rubber.
- Max Working Pressure: 1 MPA / 10 Bar / 145 PSI.
- Max Working Temperature: 60 C.
- Light weight, low cost and excellent readability rotameter.
- Used for industrial and domestic application, Widely used in water treatment & filtration industry, reverse osmosis units.
- Indoor use.
- More sizes and types are available.
- Measurement Principle: Variable area flow using a float in a tapered tube made from special plastic materials.
- Operation: The fluid flows up through the tapered tube forcing the float to a position with sufficient free area to enable the flow to pass. This free area is related to the flow rate, the weight of the float and the density and viscosity of the fluid. The pressure drop across the flow meter remains constant over the entire flow range. This occurs because the pressure drop is related to the fluid velocity and area of flow, the area of flow increases as the flow rate increases.
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Estimated Delivery:Jul 08 - Jul 12
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Next Day Dispatch

Hi Flow Inline Rotameter, Tube Type
Inline Pipe Rotameter, High Flow Variable Area Flow Meter
- Inline Hi Flow Variable Area Flow Meter or Tube Rotameter which has been designed to offer an economical solution for liquid flow measurements.
-
Flow Range (LPM: Liter Per Minute) - (GPM: Gallon Per Minute)
- 20 to 100 LPM (5 to 30 GPM).
- 20 to 150 LPM (5 to 40 GPM).
- 80 to 220 LPM (20 to 60 GPM).
- Scale on LPM (liter per minute) and GPM (gallon per minute).
- Connection: 1.5" BSP Threaded Male.
- Simple installation, threaded connection.
- Type: Tube Mount, Pipe Mount.
- Body: Acrylic.
- Float & Leader: Stainless Steel.
- Fittings: ABS.
- O-ring: Silicon rubber.
- Max Working Pressure: 1 MPA / 10 Bar / 145 PSI.
- Max Working Temperature: 60 C.
- Light weight, low cost and excellent readability rotameter.
- Used for industrial and domestic application, Widely used in water treatment & filtration industry, reverse osmosis units.
- Indoor use.
- More sizes and types are available.
- Measurement Principle: Variable area flow using a float in a tapered tube made from special plastic materials.
- Operation: The fluid flows up through the tapered tube forcing the float to a position with sufficient free area to enable the flow to pass. This free area is related to the flow rate, the weight of the float and the density and viscosity of the fluid. The pressure drop across the flow meter remains constant over the entire flow range. This occurs because the pressure drop is related to the fluid velocity and area of flow, the area of flow increases as the flow rate increases.
Discover more in our FAQ
What types of industrial water treatment products do you offer?
We offer a comprehensive range of industrial water treatment solutions, including:
Filtration Systems – Effectively removes sediment, chlorine, and other impurities to enhance water purity and system longevity.
Reverse Osmosis Membranes – High-performance purification technology that eliminates dissolved solids, contaminants, and impurities for ultra-pure water.
Membrane Housings – Durable, high-pressure enclosures engineered to protect and optimize the performance of RO membranes.
Filter Cartridges – Precision-engineered sediment, carbon, and specialty filters designed to target specific contaminants for enhanced water treatment efficiency.
Chemical Dosing Systems – Precise chemical treatment for water.
Media FRP Pressure Vessels – High-pressure tanks for filtration media.
Ion Exchange Resins – Softening and demineralization solutions.
Water Instruments – pH meters, conductivity meters, and TDS testers.
Rotameter Flow Meters – Accurate flow measurement devices.
Watermaker Parts – Spare parts for marine and industrial watermakers.
Water Quality Test Kits – Portable and lab testing solutions.
How do I know which product is right for my application?
Choosing the right product depends on:
Water quality parameters (TDS, pH, hardness, contaminants)
Flow rate and pressure requirements
Industry-specific needs (food processing, pharmaceuticals, HVAC, etc.)
If you’re unsure, our technical support team can help you select the best solution.
Do you offer bulk pricing for large industrial orders?
Yes! We provide bulk discounts and custom pricing for high-volume orders. Contact us for a personalized quote.
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions. Expedited shipping options are available upon request.
What is your return policy?
We offer a 14-day return policy from the date of delivery. If you are not completely satisfied with your purchase, you can return the item for a refund or exchange, provided it meets our return conditions.
What happens if I receive a damaged or incorrect item?
If your item arrives damaged or you receive the wrong product, please contact us immediately at support@waterfilter.net.au with photos and your order number. We will send a replacement or issue a refund as per our return policy..
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions.
Expedited shipping options are available upon request.
Do you ship internationally?
Yes, we offer international shipping for most of our industrial water treatment products. Contact us for custom shipping quotes and lead times.