MT3750 Metal Tube Flow Meters
Accurate low-flow measurement. Long-lasting performance in harsh environments.
Need reliable, durable flow measurement in high-pressure, high-temperature or hazardous process settings? The MT3750 metal tube variable area low flow meter from Brooks Instrument is your hard-working answer.
Constructed from high-strength steel, the MT3750 Series VA low flow meter features a compact design and multiple threaded and flange connection options to make it easier to install and integrate into existing plants, as well as a cost-effective replacement for glass tube flow meters. Certified explosion proof, our low flow liquid flow meters also offer optional transmitters or inductive alarms for more advanced flow measurement and process data capture operations.
Features
- Low flow ranges: Up to 100 I/h or 26 gph
- High pressure and temperature rating
- Compact size
- Multiple threaded or flanged connections
- Large, easy-to-read indicator
- No external power required
- Optional accessories include needle valve, flow controllers and alarms
- Available with 4-20 mA flow signal transmitter, and/or reed switch alarm signals or inductive alarms for high/low-flow conditions
Applications
- Basic liquid or gas flow measurement
- Rotating equipment flow measurement
- Process analyzers
- High-pressure flow on offshore oil platforms
- Burner control
- Gas chromatography
- Chemical injection
- Purge liquid or gas metering
Benefits
- Engineered for repeatable accuracy in low-flow rate applications with high-pressure or hazardous fluids
- Stainless steel construction and compact size enables easier installation into tight spaces, hazardous environments or remote areas
- Compatible with a wide range of liquids and gases
- Multiple connection types enable use in multiple location in one plant or process
- Optional alarms, transmitters and limit switch controllers provide added levels of measurement and control
- Great replacement for glass tube flow meters (same lay length as Sho-Rate Series 1350)
| Type of Media | Liquid, Gas |
|---|---|
| Flow Measuring Principle | Variable Area (VA) |
| Flow Range | Water: 26 gph / 100 l/h, Air: 110 scfh / 3.1 m3n/hr |
| Accuracy Range | ±5% FS* / Class 4 VDI / VDE (*QuickShip), ±3% FS / Class 2.5 VDI / VDE |
| Repeatability | Less than 1% FS |
| Max Pressure | 4000 psi |
| Operating Temperature | -50°C - 204°C* |
| Ingress Protection | IP65, IP66, IP67, Nema 4x |
| Measure/Control | Measure Only (Meter) |
| Max Flow | 52 slpm |
| Max Flow | 100 l/hr |
| Max Operating Pressure | 276 bar |
| Max Temperature | 204 celsius |
| Hazardous Area Approved | Class 1 Div 1, Class 1 Div 2, Zone 2, Zone 1 |
| Accuracy (FS) | ±5% FS, ±3% FS |
| Connectivity | Analog (4–20 mA) |
Use the following guide (model code information from data sheet) to translate the CAD configurations available below. If you need assistance or can’t find what you’re looking for, please contact Applications Engineering or your local Brooks Instrument representative.
Example: 3750C - ABCDEF - 1 - A - A - A - 0
| Meter Series | Construction/Seals | Connection Size & Type | Valve Configuration | Electrical Output | Accy | Accy Group 2 |
| 3750C | A - Std Design; Viton® O-rings B - Std Design; Teflon® O-rings C - Std Design; Buna O-rings D - Std Design; Kalrez® O-rings E - Std Design; EPM O-rings F - Std Design; Teflon® in Meter and Kalrez® in Valve G - All Welded/High Pressure; No Elastomer - No Valve Cavity |
1- 1/4" NPT (F) - Integral 2 - 1/4" Tube Compression - With Adapter 3 - 6 mm Tube Compression - With Adapter |
A - No Valve (Standard Fitting w/Plug) B - Low Flow Valve on Inlet - Typical for Sizes 0, 1, 2 C - Medium Flow Valve on Inlet - Typical for Sizes 3 & 4 D - High Flow Valve on Inlet - Typical for Sizes 5 & 6 E - No Valve Cavity - All Welded/High Pressure Only V - Mounted to 316L SS 8902 Flow Controller with Viton® Diaphragm |
A - None B - Reed Switch Alarm, Meter Mounted E - Single Inductive Alarm w/M20 x 1.5 Electrical Connection F - Single Inductive Alarm w/ 1/2" NPT (F) Electrical Connection G - Double Inductive Alarm w/M20 x 1.5 Electrical Connection H - Double Inductive Alarm w/ 1/2" NPT (F) Electrical Connection J - Mat Transmitter w/M20 x 1.5 Electrical Connection K - Mat Transmitter w/ 1/2" NPT (F) Electrical Connection |
A - None | 0 - None |