Image may differ from the actual product. Wet air flow meters · VPInstruments
VPFlowScope DP: flow meter for hot, saturated compressed air
Patented differential pressure flow probe built for hot, 100% saturated compressed air, typically at the compressor outlet, before the dryer, where thermal mass flow meters become inaccurate because they assume dry air. It measures flow, pressure, temperature and totalized flow, bi-directional as standard. You get the flow actually produced at the source, to compare against the consumption measured downstream and track compressor efficiency.
From $6,372 CAD list prices, before taxes. Installation and shipping extra. Price subject to change without notice.
Configure with the selector- Flow
- 92–75,983 SCFM
- Configurations
- 3
Available configurations
| VP part number | Probe length | Readout | Flow direction | Price | |
|---|---|---|---|---|---|
| VPS.R200.P4DP.D2 | 400 mm (15.7 in) | No display (D2) | Bi-directional | $6,372 | |
| VPS.R200.P4DP.D10 | 400 mm (15.7 in) | Display (D10) | Bi-directional | $7,135 | |
| VPS.R200.P4DP.D11 | 400 mm (15.7 in) | Display + data logger (D11) | Bi-directional | $7,429 | |
Range specifications
- Brand
- VPInstruments
- Reseller
- Onyx M3 Inc.
- Technology
- Differential pressure (patented), insertion probe
- Air quality
- Wet or dry compressed air; water droplets tolerated, no excessive oil or water carryover
- Measurements
- Flow · pressure · temperature · totalized flow; bi-directional as standard
- Accuracy
- 2% of reading (calibration conditions); factory-programmed gas correction factor, calibration report supplied
- Communication
- RS485 (Modbus RTU), 4-20 mA or pulse
- Power supply
- 12 to 24 VDC
- Gases measured
- Compressed air and common industrial gases
- Max pressure
- 250 psig (17 barg)
- Applications
- Compressor outlet · compressor efficiency monitoring · high-velocity wet air
Flow range by pipe diameter
| Diameter | Min. flow | Max. flow |
|---|---|---|
| 2 in (51 mm) | 92 SCFM | 917 SCFM |
| 3 in (76 mm) | 202 SCFM | 2,020 SCFM |
| 4 in (102 mm) | 348 SCFM | 3,483 SCFM |
| 6 in (152 mm) | 790 SCFM | 7,904 SCFM |
| 8 in (203 mm) | 1,368 SCFM | 13,675 SCFM |
| 10 in (254 mm) | 2,234 SCFM | 22,344 SCFM |
| 12 in (305 mm) | 3,060 SCFM | 30,597 SCFM |
| 16 in (406 mm) | 4,831 SCFM | 48,314 SCFM |
| 20 in (508 mm) | 7,598 SCFM | 75,983 SCFM |
Schedule 40 pipe, flow in SCFM (VPInstruments distributor guide). The actual range depends on the inside diameter of your pipe.
Frequently asked questions
- Why differential pressure rather than thermal mass?
- Thermal mass flow meters (VPFlowScope M, Probe, In-line) require dry air, free of droplets. At the compressor outlet the air is hot and saturated; the VPFlowScope DP is built precisely for those conditions.
- Does it tolerate water and oil?
- Water droplets are tolerated. Excessive oil or water carryover is not. Onyx M3 validates the measuring point at quoting.
Ready to request a quote?
Add the configurations you need to your request, then send it all at once from the quote page. Onyx M3 validates the measuring point before ordering. Billing by transfer or purchase order; no online payment.