ProductsShopApplicationsAboutFAQContact Cart Get a Quote

Your Cart

Subtotal₹0
Proceed to Checkout →
Home / Products / Precision Swirl Velocity Flow Meter
Precision Swirl Velocity Flow Meter — real BROIL product photograph
SWIRL PRINCIPLE — VELOCITY FLOW METER

Precision Swirl Velocity Flow Meter

The flow spins. The frequency tells the rate.

Swirl flowmeters, often referred to as swirl meters or precision vortex flowmeters, operate on the principle of imparting angular momentum to the flowing fluid through a set of stationary blades or swirl vanes. As the fluid passes through these vanes it acquires a swirling motion. These swirls are detected by a sensor, and the frequency of their formation is directly proportional to fluid velocity — allowing the meter to accurately calculate the flow rate.

Enclosure
Aluminium / SS316
Rotor
SS316 / Tantalum
Repeatability
0.02%
Accuracy (standard position)
1% for gas
01 · Performance

Performance Data

Designed for pipe sizes DN15 to DN200, measuring flow rates within 0.3 ~ 3600 m³/h with high accuracy suited to applications where precise flow data is essential.

02 · Where it's used

Markets & Areas of Application

Gas measurement, petroleum, chemical industries, compressed air measurement, and applications with complex flow patterns needing accurate low-flow measurement.

03 · Why choose it

Advantages

Operates over a broad range of temperatures and pressures
Can directly measure mass flow rates
No moving parts in direct contact with the fluid
Reduces maintenance requirements
Integrates into process control systems for real-time monitoring
04 · Build & specification

General Specification

Enclosure
Aluminium / SS316
Rotor
SS316 / Tantalum
Repeatability
0.02%
Accuracy (standard position)
1% for gas
Fluid & ambient temperature
-20°C to 80°C
Connection
Flange End
Model range

Choose your model

BT-SFM-015
Line Size (Flange): ½"Range (m³/H): 0.33 ~ 12
BT-SFM-020
Line Size (Flange): ¾"Range (m³/H): 1.1 ~ 16
BT-SFM-025
Line Size (Flange): 1"Range (m³/H): 2.7 ~ 32
BT-SFM-032
Line Size (Flange): 1¼"Range (m³/H): 4.6 ~ 61
BT-SFM-040
Line Size (Flange): 1½"Range (m³/H): 6.5 ~ 73
BT-SFM-050
Line Size (Flange): 2"Range (m³/H): 11.3 ~ 134
BT-SFM-065
Line Size (Flange): 2½"Range (m³/H): 19.1 ~ 299
BT-SFM-080
Line Size (Flange): 3"Range (m³/H): 29.4 ~ 408
Show all 12 models →
BT-SFM-100
Line Size (Flange): 4"Range (m³/H): 50.9 ~ 792
BT-SFM-125
Line Size (Flange): 5"Range (m³/H): 70.7 ~ 1016
BT-SFM-150
Line Size (Flange): 6"Range (m³/H): 159 ~ 2227
BT-SFM-200
Line Size (Flange): 8"Range (m³/H): 226.2 ~ 3619
Related technology

You might also need

💬 📞