Overview
The Orange Research 1516DG-1A-2.5B is a precision differential pressure gauge engineered for high-pressure applications where accurate DP (differential pressure) measurement is critical. This model combines a robust diaphragm sensor with aluminum body construction, allowing reliable operation at static line pressures up to 1500 PSI while measuring differential pressures as low as 0–15 PSID. Commonly used in filtration, flow monitoring, and process control systems, this gauge delivers the sensitivity needed for low DP ranges without sacrificing durability in demanding hydraulic and pneumatic environments.
Key Features
- Diaphragm sensor design for superior sensitivity and linearity across the 0–15 PSID range
- Aluminum body with Buna seals ensures corrosion resistance and compatibility with common industrial fluids
- 2.5″ dial face with easy-to-read analog scale for quick operator assessment
- 1/4″ NPT female ports (in-line configuration) for straightforward plumbing integration
- Continuous operation up to 200°F (93°C) for demanding thermal environments
- 2% full-scale accuracy meets ISO and industrial process control standards
Technical Specifications
Pressure & Temperature:
Maximum Operating Pressure: 1500 PSI (100 bar)
Differential Pressure Range: 0–15 PSID
Maximum Temperature: 200°F (93°C)
Accuracy: ±2% Full Scale
Mechanical:
Dial Size: 2.5″ (63.5 mm)
Body Material: Aluminum
Wetted Parts: Aluminum
Seals: Buna (Nitrile)
Connection Type: 1/4″ FNPT (female pipe thread), in-line ports
Sensor Type: Diaphragm
Environmental:
Operating Temperature Range: –40°F to +200°F (–40°C to +93°C)
Mounting: Bottom or optional flanged (verify with manufacturer)
Typical Applications
- Filtration: Monitor clogging and pressure drop across filter elements
- Flow Measurement: Track flow restriction and system balance in process lines
- Hydraulic Systems: Assess pump discharge pressure differential and component wear
- Pneumatic Control: Verify regulator setpoint and compressed air line conditions
- Process Monitoring: Real-time differential pressure indication for HVAC, refrigeration, and water treatment
Compatibility & Replacements
Compatible With
- Hydraulic test stands and measurement rigs
- Industrial pneumatic systems and air-handling equipment
- Filter housings with 1/4″ NPT female ports
- Differential pressure switches and remote transmitter bundles
- Pressure manifolds using standard 1/4″ NPT tapping
Replaces / Drop-In Replacement For
- Other Orange Research 1516 series gauges with matching pressure range and port configuration
- Generic 2.5″ differential pressure gauges rated for 1500 PSI line pressure and 0–15 PSID range
- Verify exact model compatibility with your system integrator before ordering
Works With
- Pressure relief valves and safety systems
- Differential pressure switches (1516DGS, 1516DGT variants available)
- Integrated pressure transmitter versions (1516DGT) for remote monitoring
- Standard industrial hydraulic and pneumatic fittings and quick-disconnects
