Overview
The Ashcroft 45-1279RS-04L-15 is a Type 1279 Duragauge pressure gauge engineered for industrial process monitoring. This 4.5″ ASME-style gauge features a 0–15 PSI pressure range and is constructed with 316 stainless steel tubing and steel process connections, making it ideal for corrosive or demanding environments. The socket-welded design ensures robust integrity and long operational life, while the solid front stainless steel case provides excellent durability and NSF-61 compliance.
Key Features
- Patented Duratubeâ„¢ Bourdon tube: Round Cap Tip construction controls stress for extended gauge life
- 4.5″ dial: Large, easy-to-read face for clear pressure visibility
- Socket-welded construction: 316 stainless steel tube with steel process connection
- ½ NPT male lower connection: Standard industrial thread for easy installation
- ASME certification: Meets ASME B40.1 process gauge standards
- NSF-61 compliant: Suitable for applications requiring food and beverage industry compliance
Technical Specifications
- Pressure Range: 0–15 PSI
- Dial Size: 4.5 inches
- Case Material: Solid front stainless steel
- Tube Material: 316 stainless steel (socket-welded)
- Process Connection: ½” NPT male, lower
- Connection Type: Socket-welded steel
- Accuracy Class: ASME B40.1
- Operating Temperature: –40°F to +250°F (–40°C to +121°C) standard
- Maximum Pressure Rating: 20,000 PSI (tube capability)
- Part Number Format: 45-1279RS-04L-15
Typical Applications
The Ashcroft 1279 Duragauge is widely used across demanding industrial sectors:
- Chemical and petroleum processing plants
- Water treatment and utilities
- HVAC and refrigeration systems
- Manufacturing and compressed air lines
- Food and beverage production (NSF-61 compliant)
- Laboratory test equipment and instrumentation
Compatibility & Replacements
Compatible With
- Standard ½” NPT process connections
- Industrial pneumatic and hydraulic systems
- Compressed air and gas applications
- Low-pressure steam systems (up to 15 PSI)
- Factory utility networks requiring ASME-rated monitoring
Replaces / Drop-In Replacement For
- Ashcroft 1279 Duragauge models with identical 0–15 PSI range and ½” NPT connection
- Other 4.5″ process gauges with equivalent NPT threading and pressure rating
- Verify specific model compatibility with your system integrator before ordering
Works With
- Pneumatic and hydrostatic test equipment
- Pressure relief valves and regulators
- Pressure switches and transmitters (alongside gauge reading)
- Standard NPT-threaded manifolds and block systems
- Industrial control and monitoring networks
