Bypass Rotameter
Working Principle of Bypass Rotameter A Bypass Rotameter operates on the variable area flow measurement principle based on Bernoulli's theorem. As fluid or gas passes through the tapered tube, a pressure differential is created across the float, causing it to rise until the upward force balances its weight. The increasing flow area within the tapered tube ensures that the float position remains directly proportional to the flow rate, providing accurate and linear flow indication. Bypass Rotameters are especially suitable for hazardous or remote installations where electrical power is unavailable or unsafe. They offer excellent rangeability of 5:1 to 7:1, direct-reading flow scales, and easy maintenance, allowing range changes or tube cleaning without removing the meter from the bypass line.
Bypass Rotameter
Code: BPR-FL, Model:
Working Principle of Bypass Rotameter
A Bypass Rotameter operates on the variable area flow measurement principle based on Bernoulli's theorem. As fluid or gas passes through the tapered tube, a pressure differential is created across the float, causing it to rise until the upward force balances its weight. The increasing flow area within the tapered tube ensures that the float position remains directly proportional to the flow rate, providing accurate and linear flow indication. Bypass Rotameters are especially suitable for hazardous or remote installations where electrical power is unavailable or unsafe. They offer excellent rangeability of 5:1 to 7:1, direct-reading flow scales, and easy maintenance, allowing range changes or tube cleaning without removing the meter from the bypass line.
Product Details
Standard Ranges For Water At 20°c
| Model | NB | Maximum Flowrate (M3/HR.) | |
| FLGT-10-BPR-25 | FLMT-10-BPR-25 | 25 | 5 |
| FLGT-10-BPR-40 | FLMT-10-BPR-40 | 40 | 10 |
| FLGT-10-BPR-50 | FLMT-10-BPR-50 | 50 | 20 |
| FLGT-10-BPR-80 | FLMT-10-BPR-80 | 80 | 36 |
| FLGT-10-BPR-100 | FLMT-10-BPR-100 | 100 | 80 |
| FLGT-10-BPR-125 | FLMT-10-BPR-125 | 125 | 125 |
| FLGT-10-BPR-150 | FLMT-10-BPR-150 | 150 | 150 |
| FLGT-10-BPR-200 | FLMT-10-BPR-200 | 200 | 320 |
| FLGT-10-BPR-225 | FLMT-10-BPR-225 | 225 | 450 |
| FLGT-10-BPR-250 | FLMT-10-BPR-250 | 250 | 550 |
| FLGT-10-BPR-275 | FLMT-10-BPR-275 | 275 | 650 |
| FLGT-10-BPR-300 | FLMT-10-BPR-300 | 300 | 800 |
| FLGT-10-BPR-350 | FLMT-10-BPR-350 | 350 | 1000 |
| FLGT-10-BPR-400 | FLMT-10-BPR-400 | 400 | 1500 |
| FLGT-10-BPR-450 | FLMT-10-BPR-450 | 458 | 2000 |
| FLGT-10-BPR-500 | FLMT-10-BPR-500 | 500 | 2500 |
| FLGT-10-BPR-600 | FLMT-10-BPR-600 | 600 | 3000 |
| FLGT-10-BPR-700 | FLMT-10-BPR-700 | 700 | 4000 |
| FLGT-10-BPR-800 | FLMT-10-BPR-800 | 800 | 5000 |
| Other Sizes on Request | |||
Specification
| Type of tapping | Flange, D and D/2, corner |
| Accuracy | ±2% of full flow |
| Rangeability | 7:1 or 5:1 |
Standard Material Of Construction
| Orifice Flange | SS 316 L, SS 316, SS 304, CS etc. |
| Orifice Plate | SS 316, L, SS 316, SS 304, Hastelloy ‘C’, Monel, PVC etc. |
| Carrier Rings | SS 316 L, SS 316, Mild steel, PP etc. |
| By Pass Line | SS 316 L, SS 316, SS 304,Mild steel,PVC etc. |
| Wetted Parts of the Rotameter | SS 316 L, SS 316, SS 304, Mild steel, PP etc. |
Accessories
- Hi-low flow switch
- 4-20 mA transmitte
Meter Assembly
| Glass Tube Rotameter | FLGT-10 |
| Metal Tube Rotameter | FLMT-10 |
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