Overview
The Norgren B72G-3AK-QD3-RMG is an Excelon modular filter regulator designed for compressed air preparation in industrial pneumatic systems. This combination unit filters particulates and moisture while simultaneously regulating downstream pressure, eliminating the need for separate filter and regulator components. The unit features a metal bowl with manual drain, relieving regulator function, and an integrated pressure gauge for real-time system monitoring.
Key Features
- Combination filter and regulator in one compact module reduces footprint and pneumatic connections
- 40-micron sintered polypropylene filter element for efficient particulate removal
- Relieving diaphragm design automatically vent excess pressure to atmosphere
- Quick-release bayonet bowl for fast element servicing without disturbing line
- Push-to-lock tamper-resistant adjustment knob prevents accidental pressure drift
- Integrated round pressure gauge with bar/PSI dual scale for visual monitoring
- Metal bowl with thermoplastic liquid-level indicator strip for condensate visibility
- Manual 1/4-turn drain valve for controlled bowl evacuation
- Modular design allows inline or stacked installation with other Excelon components
Technical Specifications
| Label | Value |
| Manufacturer | Norgren (IMI Norgren) |
| Series | Excelon B72G |
| Model / Part Number | B72G-3AK-QD3-RMG |
| Port Size | 3/8″ NPT |
| Filter Element | 40 microns, sintered polypropylene |
| Bowl Type | Metal (Zinc) with manual drain |
| Regulator Type | Relieving |
| Pressure Range | 0.3–10 bar (5–150 PSIG) |
| Maximum Operating Pressure | 250 PSI |
| Gauge | Integrated round pressure gauge (bar/PSI) |
| Drain | Manual 1/4-turn (quarter-turn) |
| Mounting | Bracket/Base included |
| Certifications | CE, ATEX/IECEx Ex II 2 GD |
| Country of Origin | Mexico |
Typical Applications
The Norgren B72G-3AK-QD3-RMG is ideal for compressed air service in:
- Industrial automation and control systems
- Machine tool applications requiring stable air pressure
- Process control and packaging machinery
- ATEX II 2 GD certified for Zone 1/21 gas and dust hazardous environments
- Manufacturing facilities with modular or portable pneumatic rigs
- OEM equipment where space and simplicity are priorities
Compatibility & Replacements
Compatible With
- Norgren Excelon modular system components (cartridge valves, manifold bases)
- Standard ISO 4401 or similar pneumatic system architecture
- Standard compressed air piping and quick-disconnect couplings
- Gauge port compatible with 1/4″ NPT or metric pressure transducers
- Any downstream pneumatic actuators and control valves rated for 0.3–10 bar outlet pressure
Replaces / Drop-In Replacement For
- Earlier Excelon B72 series units with identical port configuration
- Generic 3/8″ NPT filter-regulators in similar pressure and flow class
- Verify specific predecessor model numbers with your supplier or controls documentation before ordering
Works With
- Excelon B82 series (larger flow capacity) as modular alternatives
- Norgren manual override and relief valve accessories
- Standard ISO 4401 subplate and cavity systems
- All compressed air generation, drying, and downstream conditioning equipment



