Overview
The Parker Watts B75-02C air pressure regulator is a direct-acting, balanced poppet design that reduces upstream supply pressure to a consistent downstream pressure. Part of Parker’s QUBE modular FRL system, this regulator delivers dependable pressure control for compressed air applications. The B75-02C features a 1/4″ NPT port configuration and is rated for 0–125 PSIG secondary pressure.
Key Features
- Balanced poppet, diaphragm-style design for stable pressure regulation
- 0–125 PSIG reduced pressure range—ideal for general pneumatic equipment
- 1/4″ NPT port connections for compact system integration
- Available in relieving (standard) or non-relieving configurations
- Glass-filled acetal components for durability and chemical resistance
- Zinc body construction—corrosion-resistant in industrial environments
Technical Specifications
| Port Size | 1/4″ NPT |
| Pressure Range (Secondary) | 0–125 PSIG (0–8.6 bar) |
| Regulator Type | Balanced poppet, diaphragm-style (relieving, standard) |
| Body Material | Zinc |
| Cage & Bottom Plug Material | Glass-filled acetal |
| Elastomers | Buna-N |
| Port Thread Style | NPT (National Pipe Thread) |
| Series | Parker QUBE B75 |
| Condition | New in Box |
| Manufacturer | Parker Hannifin / Watts Pneumatic Division |
Typical Applications
- Manufacturing: Machine tool pneumatic circuits, robotic assembly systems, automated packaging equipment
- Pneumatic Automation: Cylinder actuation, control valve pilot supplies, instrument air systems
- Industrial Plants: General compressed air distribution, production line pressure regulation
- Facility Maintenance: Workshop air preparation, equipment breathing protection
Compatibility & Replacements
Compatible With
- Parker QUBE modular FRL system (Filter–Regulator–Lubricator combinations)
- Standard compressed air networks with 1/4″ NPT ports
- Pneumatic circuits rated 100+ PSIG inlet pressure
- Industrial and commercial compressed air systems
Replaces / Drop-In Replacement For
- Legacy Parker Watts R75-02C regulator (when used standalone without integrated filter)
- Equivalent 1/4″ NPT, 0–125 PSIG regulators from competitor product lines
- Verify compatibility with your system integrator before ordering.
Works With
- Parker QUBE Filter, Regulator, Lubricator (FRL) modules
- Standard SAE/ISO compressed air treatment components
- NPT-threaded pneumatic hoses, tubing, and fittings
- Pressure gauges and monitoring systems (0–200 PSIG range)












