Overview
The Rexroth R412004414 is a professional-grade Bourdon tube pressure gauge from the PG1 series, engineered for accurate measurement of compressed air systems. With a measurement range of 0 to 2.5 bar (36 PSI), this gauge delivers reliable performance in industrial automation, pneumatic control systems, and maintenance monitoring applications.
Key Features
- Bourdon tube measurement technology with proven accuracy and durability
- Dual scale display showing readings in both bar and PSI units
- G 1/4 connection port for standard industrial compressed air lines
- 63 mm nominal dial diameter for clear, easy-to-read pressure indication
- Compact design suitable for control cabinets, valve manifolds, and pump stations
- Mechanical operation—no electrical power required
Technical Specifications
- Part Number: R412004414
- Series: PG1-SAS
- Measurement Range: 0 to 2.5 bar (0 to 36 PSI)
- Scale Value: 0.1 bar
- Nominal Diameter: 63 mm
- Connection Type: G 1/4 (ISO 228/1)
- Tube Material: Copper alloy Bourdon tube
- Housing: Acrylonitrile butadiene styrene (ABS)
- Sealing Material: Polytetrafluoroethylene (PTFE)
- Display Window: Polystyrene
- Standardization: EN 837-1
- Weight: 0.08 kg
Typical Applications
The Rexroth R412004414 is ideal for:
- Pneumatic system pressure monitoring in manufacturing plants
- Compressed air line quality assurance and diagnostics
- Pump and compressor discharge pressure verification
- Industrial control valve settings and maintenance
- Laboratory and test bench instrumentation
- OEM equipment integration where low-pressure measurement is required
Compatibility & Replacements
Compatible With
- Standard ISO 228/1 G 1/4 female threaded ports
- Bosch Rexroth pneumatic manifolds and valve systems
- Aventics air preparation and control systems
- Industrial compressed air networks (dry, oil-free, standard)
- Most pneumatic tubing systems with metric thread adapters
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The R412004414 is the standard model for the 0–2.5 bar range in the PG1-SAS series; alternative part numbers in this series serve different pressure ranges (R412004419 for 0–1.6 bar, R412004420 for 0–2.5 bar, R412004421 for 0–4 bar, etc.).
Works With
- Bosch Rexroth NG6 and NG10 solenoid valve manifolds
- Aventics ASCO proportional control systems
- ISO 4401 sandwich and subplate valve logic assemblies
- Standard pneumatic filter-regulator-lubricator (FRL) units
- Most industrial compressor discharge and branch-line monitoring setups




