Overview
The Ashcroft 1009 3.5″ pressure gauge (model 3QA49314-010) is a proven industrial Duralife instrument engineered for long-term performance in challenging environments. This steel case gauge combines proven Bourdon tube design with advanced movement technology to deliver consistent, accurate pressure readings in hydraulic, pneumatic, and process control applications.
Key Features
- PowerFlex Movement: Superior resistance to shock, vibration, and pulsation; extends service life and reduces maintenance costs
- True Zero Technology: Uses a “zero box” mechanism instead of conventional dial design to reduce reading errors and improve accuracy
- Removable Bayonet Ring: Quick-access design for easy field adjustments and recalibration without full removal
- Steel Case Construction: Robust, durable housing suitable for industrial and OEM environments
- Available in Multiple Pressure Ranges: Configurable for diverse applications from low to high pressure systems
Technical Specifications
- Model: Ashcroft 1009 Duralife
- Dial Size: 3.5 inches (89 mm)
- Case Material: Steel
- Movement Type: Bourdon tube with PowerFlex mechanism
- Operating Temperature Range: -20 °F to 250 °F (-29 °C to 121 °C)
- Accuracy: ASME Grade B (±3-2-3%)
- Connection Type: NPT (National Pipe Thread) — verify size for your application
Typical Applications
- Hydraulic system monitoring and control
- Pneumatic equipment and compressed air systems
- Industrial process control
- Water and steam systems
- OEM machine tool integration
- Maintenance and field testing
Compatibility & Replacements
Compatible With
- Standard NPT gauge connections (1/4″, 1/2″ — verify size for your installation)
- Hydraulic and pneumatic manifold systems
- Industrial pressure measurement panels and test stands
- ASME/ANSI standard pressure installations
Replaces / Drop-In Replacement For
- Older Ashcroft 1009 models and equivalent third-party gauges of same size and connection
- Legacy industrial gauges rated for similar pressure ranges
- Verify pressure range, NPT size, and mounting orientation before ordering
Works With
- Direct mechanical measurement systems (no software integration required)
- Hydraulic and pneumatic control circuits
- Stand-alone analog monitoring and test applications
- ASME/ANSI compliant pressure control assemblies
