The Dwyer IF2721 is a Series IF industrial direct reading variable area flowmeter rated to 116 GPM (439 LPM) of water on a scale that reads flow directly, with no correlation charts. It installs vertically through 2 in. female NPT connections.
Best For
- Liquid metering up to 116 GPM water
- Industrial hydraulic systems
- Lines with 2 in. female NPT connections
- Process conditions up to 125 psi and 200°F (93°C)
Warranty
1-year limited warranty from delivery to the buyer under the DwyerOmega standard warranty.
Key Features
Direct-Reading Scale
Reads water flow to 116 GPM directly, saving time with no correlation charts.
Polycarbonate Front Shield
A detachable, clear 3/16 in. thick polycarbonate front shield protects the flowtube at maximum rated temperature and pressure, with 304 stainless steel side panels.
316 Stainless Steel Wetted Parts
Borosilicate glass flowtube with 316 SS float, guide rods, float stops and end fittings, sealed by fluoroelastomer O-rings.
±3% Full-Scale Accuracy
±3% of full scale accuracy with ±0.5% of full scale repeatability and a 10:1 turn-down ratio.
Industrial Pressure Rating
Rated to 125 psi and 200°F (93°C) for industrial service.
2 in. Female NPT Connections
Tube size 6 body with 2 in. female NPT inlet and outlet ports for vertical in-line mounting.
ZOT Supply is an authorized distributor of Dwyer products.
Technical Specifications
| Model | IF2721 |
|---|---|
| Series | Dwyer Series IF Industrial Direct Reading Flowmeter |
| Maximum Flow Rate, Water | 116 GPM (439 LPM) |
| Tube Size | 6 |
| Pressure Drop | 45 inch WC |
| Accuracy | ±3% of full scale |
| Repeatability | ±0.5% of full scale |
| Turn-Down Ratio | 10:1 |
| Process Connection | 2 in. female NPT |
| Mounting | Vertical |
| Temperature Limit | 200°F (93°C) |
| Pressure Limit | 125 psi |
| Flowtube | Borosilicate glass |
| Float, Guide Rods, Float Stops, End Fittings | 316 stainless steel |
| O-Rings | Fluoroelastomer |
| Front Shield | Detachable clear polycarbonate, 3/16 in. thick |
| Side Panels | 304 stainless steel |
| Dimension A (Body Width) | 5 in. (127 mm) |
| Dimension B (Overall Length) | 15.59 in. (396 mm) |
| Dimension C (Body Depth) | 5.25 in. (133 mm) |
| Dimension D (Body Length) | 11.55 in. (293 mm) |
| NIST Traceable Calibration | Not available |
Documentation
Frequently Asked Questions
What is the maximum flow rate of the Dwyer IF2721?
The IF2721 reads water flow up to 116 GPM (439 LPM) full scale.
What pipe connection size does the Dwyer IF2721 use?
The IF2721 has 2 in. female NPT inlet and outlet connections on a tube size 6 body.
What pressure and temperature is the Dwyer IF2721 rated for?
The IF2721 is rated to 125 psi and 200°F (93°C).
How is the Dwyer IF2721 installed?
The IF2721 mounts vertically in-line through its 2 in. female NPT inlet and outlet connections.
Is NIST traceable calibration available for the Dwyer IF2721?
No. NIST traceable calibration is not available for the IF2721.
Specifications verified October 14, 2026 against the Dwyer Series IF catalog page 257 and drawing IF_DD.
- Series:
- IF
- Product Type:
- Variable Area Flowmeter
- Media:
- Water
- Max Water Flow:
- 116 GPM
- Connection Type:
- Female NPT
- Connection Size:
- 2 in.
- Max Pressure:
- 125 psi
- Max Temperature:
- 200°F
- Accuracy:
- ±3% FS
- Mounting:
- Vertical
- NIST Calibration:
- Not Available
