Metal Tube Rotameter
A Metal Tube Rotameter is a type of variable area flow meter designed for accurate measurement of liquid, gas, and steam flow rates, especially under high pressure, high temperature conditions & corrosive conditions.
Principle of Operation
The Variable Area Flowmeter measures the flow of liquids and gases using the Variable Area Principle. As fluid flows through the tapered tube, it lifts a float the height of which corresponds to the flow rate. This float movement is transferred via magnetic coupling to an external pointer, which moves over a calibrated scale to indicate the flow. The design ensures safe, accurate measurement without direct contact between the fluid and the indicator.
| General Specifications | |
|---|---|
| Accuracy | 1-1.5% F.S.R. |
| Repeatability | 0.5% |
| Rangebility | 10:1 |
| Scale length | 160 degree |
| Angular Pressure Ratings | 90 Kg/cm2, 300 Bar (Optional) |
| Temperature Ratings | -20° To 300° |
| Connections | Flanged OR Screwed |
| Enclosure | IP 55 OR IP 65 on request |
| Tube | 316SS, 316LSS, 304SS, PP, PTFE |
| Float | 316SS, 316LSS, 304SS, PP, PTFE |
| Indicator Box | Cast Al., SS 304 |
| Flange | 316SS, 316LSS, 304SS, |
| Range | LPH, LPM, Kg/hr, m3/hr, Nm3/hr, CFH, CFM, As Per Requirement |
| Suitable to measure flow rate of opaque/translucent liquid, gases Steam and vapors under critical operating conditions. | |
| Available in SS-316/ SS-304/PP/PTFE LINING construction and flanged from 25 NB to 150 NB pipe size. | |
| Heating Jacket on request. | |
Metal Tube Rotameter - Advantages
- Steam flow measurement
- Feed water & condensate lines
✓ Rugged Construction
- All-metal body (SS304 / SS316 / PTFE Lining ) ensures durability
- Suitable for harsh industrial environments
- "Accurate Flow Measurement You Can Trust"
- Provides precise flow measurement with excellent repeatability, reducing process errors.
✓ High Pressure & Temperature Resistance
- Can withstand high pressure and temperature conditions
- Ideal for steam and Liquid critical applications
✓ Suitable for Corrosive Media
- Compatible with acids, chemicals, and aggressive fluids
- Optional special materials available
✓ Accurate & Reliable Measurement
- Provides consistent and precise flow readings
- Stable performance over long periods
✓ No External Power Required
- Mechanical operation
- Works even during power failure
✓ Low Maintenance
- Suitable for liquids, gases, and steam
- Applicable across multiple industries
✓ Long Service Life
- Simple and robust design
- Easy servicing and spare availability
✓ Easy Installation
- Designed for vertical & Horizontal pipeline installation
- Available in flanged threaded, TC connections
- Low Pressure Drop
Ensures energy efficient operation without affecting systemperformance - Real-Time Monitoring & Control Helps in better process control, improving productivity and reducing wastage.
- Accurate measurement even at higher flow (150 m3/hr). Suitable for low flow (1 LPHS)
| Flow Range and Pressure Loss | ||||
|---|---|---|---|---|
| NB | Model No | With PTFE Float LPH | With SS 316 Float LPH | Max Press Drop MMWC |
| 15 | PS-MTR - 1 | 1 - 10 | 1 - 10 | 650 |
| PS-MTR -2 | 2.5-25 | 4-40 | ||
| PS-MTR - 3 | 4 - 40 | 6.5-65 | ||
| PS-MTR - 4 | 6.5 - 65 | 10-100 | ||
| PS-MTR - 5 | 10 - 100 | 16-160 | ||
| PS-MTR - 6 | 16-160 | 25-250 | ||
| PS-MTR - 7 | 25-250 | 40-400 | ||
| PS-MTR - 8 | 40 - 400 | 63-630 | ||
| 25 | PS-MTR - 9 | 63-630 | 100-1000 | 750 |
| PS-MTR - 10 | 100 - 1000 | 160-1600 | ||
| PS-MTR - 11 | 160 - 1600 | 250-2500 | ||
| PS-MTR - 12 | 250 - 2500 | 400-4000 | ||
| 40 | PS-MTR - 13 | 400 - 4000 | 630-6300 | 1000 |
| PS-MTR - 14 | 500 - 5000 | 700 - 7000 | ||
| 50 | PS-MTR - 15 | 630 - 6300 | 1000-10000 | 1100 |
| PS-MTR - 16 | 1000 - 10000 | 1600-16000 | ||
| 80 | PS-MTR - 17 | 1600 - 16000 | 2500-25000 | 1200 |
| PS-MTR - 18 | 2500 - 25000 | 4000-40000 | ||
| 100 | PS-MTR - 19 | 4000-40000 | 6300-63000 | 1200 |
Applications
-
Chemical Industry
- Acid, alkali, corrosive liquids flow measurement
- Dosing & process control systems
-
Pharmaceutical Industry
- Purified water (PW), WFI systems
- Clean & hygienic process lines
-
Power Plants
- Cooling water circuits
- Lubrication oil systems
-
Process Industries
- Flow indication in pipelines
- Batch & continuous process control
-
Water and Wastewater Treatment
- Raw water / treated water flow monitoring
- Chemical dosing lines
-
Oil and Gas Industry
- Fuel oil, diesel, lubricants flow measurement
- Gas flow monitoring in pipelines
-
OEM and Machinery
- Skid-mounted systems
- Panel-mounted flow indication
