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Home / Products / Helical Rotor Flow Sensor & Meter
Helical Rotor Flow Sensor & Meter — real BROIL product photograph
POSITIVE DISPLACEMENT — POSITIVE DISPLACEMENT FLOW METER

Helical Rotor Flow Sensor & Meter

Built to replace the oval gear where purity can't be guaranteed.

Helical rotor positive displacement flow sensor and meter, specially designed to replace oval gear flow sensors in applications where the liquid isn't pure and an easy, low-weight meter is required — with a favorable low pressure-drop behavior, perfectly suited to very high-viscosity fluids across wide measuring ranges, high accuracy and resolution.

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Flow tube
SS-304 / SS-316 / on request
Rotor
Cd4mCu / SS410 with Teflon coating
Shaft & bush
Hard carbon
Repeatability
0.15%
01 · Performance

Performance Data

3~15,000 L/min, pressure up to 400 Bar, independent of viscosity — perfect for 1~1000 mm²/s. Low pressure drop, high resolution, pulsation-free measurement, non-sensitive to pulsating flows, resistant to corrosion by advanced materials.

02 · Where it's used

Markets & Areas of Application

Light and heavy fuel oils, thixotropic fluids, hydraulics test rigs with varying viscosities and fluids, crude oil, furnace oil, and all viscous liquids — even where viscosity changes with temperature. Excellent for laminating systems, painting systems, adhesive dispense systems and batching systems.

03 · Why choose it

Advantages

✓Wide range of design options for different media
✓Economical or high-specification options to suit any budget
04 · Build & specification

General Specification

Flow tube
SS-304 / SS-316 / on request
Rotor
Cd4mCu / SS410 with Teflon coating
Shaft & bush
Hard carbon
Repeatability
0.15%
Accuracy (standard position)
±0.5 or 1% FSD
Maximum working pressure
60 Bar / 300 Bar
Fluid & ambient temperature
-20° to 120°~180°C
Connection
Thread (M) / Sandwich Flange / Tc End
Electrical output

Output Sensor

Power voltage
5 / 12 / 24 V DC
Output signal
NPN/PNP
High electrical level
Higher than 8 V DC (input 12 VDC)
Low electrical level
Lower than 0.8 V DC (input 12 VDC)
Model range

Choose your model

BT-HTFS-012
Line Size: 12 mmRange: 400 ~ 4000 L/HLiter / Pulse: 0.001818
BT-HTFS-020
Line Size: 20 mmRange: 800 ~ 8000 L/HLiter / Pulse: 0.005263
BT-HTFS-025
Line Size: 25 mmRange: 1000 ~ 10000 L/HLiter / Pulse: 0.010101
BT-HTFS-032
Line Size: 32 mmRange: 1500 ~ 15000 L/HLiter / Pulse: 0.020833
BT-HTFS-040
Line Size: 40 mmRange: 2000 ~ 20000 L/HLiter / Pulse: 0.041666
BT-HTFS-050
Line Size: 50 mmRange: 4000 ~ 40000 L/HLiter / Pulse: 0.080000
BT-HTFS-080
Line Size: 80 mmRange: 10000 ~ 100000 L/HLiter / Pulse: 0.32260
BT-HTFS-100
Line Size: 100 mmRange: 20000 ~ 200000 L/HLiter / Pulse: 0.476190
Show all 10 models →
BT-HTFS-150
Line Size: 150 mmRange: 30000 ~ 300000 L/HLiter / Pulse: 0.625000
BT-HTFS-200
Line Size: 200 mmRange: 40000 ~ 400000 L/HLiter / Pulse: 1.000000
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