Overview
The Omega FL7503 is an OEM-style variable area flow meter engineered for accurate, dependable liquid flow measurement. Machined from clear acrylic, this rotometer provides direct-read flow indication without electronics or power supply. The Omega FL7503 is suited for water and compatible liquids in industrial monitoring, process control, and analytical applications where simplicity and accuracy matter.
Key Features
- Direct-read acrylic construction—no calibration, no batteries, no drift
- Flow range 0.2 to 2.0 GPM with ±3% accuracy
- 1/2″ NPT female connection for standard industrial piping
- Rated to 125 psi maximum operating pressure
- Easy-to-read scale for quick visual flow monitoring
- 316 stainless steel wetted components for corrosion resistance
Technical Specifications
The Omega FL7503 delivers precise flow indication with minimal maintenance. Its durable acrylic design supports both horizontal and vertical installation, making it flexible for retrofit and new system builds.
- Flow Range: 0.2 to 2.0 GPM
- Accuracy: ±3% of full scale
- Connection: 1/2″ NPT Female
- Maximum Pressure: 125 psi
- Maximum Temperature: 54°C (130°F)
- Housing Material: Acrylic
- Valve/Wetted Parts: 316 stainless steel
- Seals: EPR (ethylene propylene rubber)
- Flow Medium: Water and water-compatible liquids
Typical Applications
- Water treatment and distribution monitoring
- Cooling water flow verification in machinery
- Laboratory and analytical instrumentation
- HVAC system commissioning and diagnostics
- General industrial process flow indication
- Equipment leak detection during commissioning
Compatibility & Replacements
Compatible With
- Standard industrial piping systems with 1/2″ NPT ports
- Water-based cooling and circulation loops
- Process control systems requiring direct mechanical indication
- Low-pressure process monitoring (under 125 psi)
Replaces / Drop-In Replacement For
- Other Omega FL7000 series rotometers in the same flow range
- Generic acrylic rotometers with equivalent 0.2–2.0 GPM specifications
- Verify compatibility with your system before ordering if replacing an existing meter
Works With
- Any instrumentation or control system with manual flow indication capability
- Mechanical process monitors and gauge panels
- SCADA and data acquisition systems (with optional signal transducer)
