Overview
The Ashcroft 45-1377AS-04B-15 is a high-performance ASME style process pressure gauge with a 4-1/2″ dial. The 1377 Duragauge series delivers accurate pressure measurement in hydraulic, pneumatic, and general industrial applications where reliability and durability are critical.
Key Features
- Full-size 4.5″ Bourdon tube element for precise pressure measurement
- Patented Duratube construction with as-welded-tube design and Round Cap tip to control stress and extend gauge life
- Teflon-coated 400 series stainless steel rotary movement resists corrosion
- Black epoxy-coated aluminum weatherproof case for harsh environments
- Adjustable micrometer pointer for zero calibration
- Flush-mount solid front design ideal for panel board applications
Technical Specifications
- Dial Size: 4-1/2″ (114 mm)
- Case Material: Aluminum with black epoxy coating
- Tube Material: Bourdon tube (brass or stainless steel dependent on range)
- Movement: Teflon-coated 400 series stainless steel
- Connection: 1/2″ NPT (back or center back mount available)
- Mounting Style: Panel flush mount
- Accuracy: ASME Grade B per ASME B40.1
- Operating Temperature: Standard -40°F to +130°F
- Ambient Temperature Range: -40°F to +130°F
Typical Applications
- Hydraulic systems pressure monitoring
- Pneumatic and air line monitoring
- Chemical and petroleum processing
- Water treatment and pumping systems
- Compressed air line monitoring
- Industrial plant process pressure indication
Compatibility & Replacements
Compatible With
- Standard 1/2″ NPT process connections
- Ashcroft diaphragm seal adapters and snubbers
- Panel-mounted gauge applications requiring ASME B40.1 compliance
- Hydraulic and pneumatic system installations
Replaces / Drop-In Replacement For
The 45-1377AS-04B-15 can replace other Ashcroft 1377 series gauges with the same dial size and connection type. Verify the pressure range and connection specification with your system integrator before ordering to ensure proper compatibility.
Works With
- 1/2″ NPT process connections (back or lower connections)
- Snubbers and needle valves for pulsation damping
- Diaphragm seals for corrosive media protection
- Standard industrial pressure system manifolds
