Graco 222121 HP Corrosion-Resistant Fluid Regulator
Compatible Machines
- Graco Air-Assisted Airless Spray Systems
- Graco Industrial Fluid Dispensing Systems
- Graco Chemical Injection Skids
- Graco Catalyst & Resin Feed Systems
- Graco Waterborne Coating Supply Systems
- Graco Adhesive & Sealant Dispensing Units
- Custom High-Pressure Fluid Delivery Packages (with 1/4" NPT connections)
The Graco 222121 HP Corrosion-Resistant Fluid Regulator is a compact, spring-operated, high-pressure regulator designed for precise fluid pressure control in demanding industrial applications. Built with stainless-steel wetted parts, it delivers reliable performance when handling corrosive, waterborne, or chemically aggressive fluids.
This regulator is widely used in professional spray finishing, fluid dispensing, and chemical coating systems where consistent pressure regulation is essential for product quality, safety, and reduced material waste.
Technical Specifications
| Part Number | 222121 |
| Maximum Working Pressure | 1500 PSI (103 bar) |
| Regulated Pressure Range | 150 – 1200 PSI |
| Maximum Flow Rate | 1.0 GPM (3.8 L/min) |
| Inlet Connection | 1/4" NPT Female |
| Outlet Connection | 1/4" NPT Male |
| Wetted Materials | Stainless Steel |
| Regulator Type | Spring-Actuated |
| Maximum Fluid Viscosity | Up to 500 cP |
Key Features
- High-pressure regulation up to 1500 PSI
- Corrosion-resistant stainless-steel internal components
- Compact lightweight body for easy installation
- Replaceable valve cartridge for quick servicing
- Stable output pressure for consistent spray and dispense performance
- Ideal for aggressive and waterborne materials
Typical Applications
- Industrial paint and coating spray systems
- Air-assisted airless spraying
- Adhesive and sealant dispensing
- Catalyst and resin delivery systems
- Chemical processing and fluid injection
- Waterborne material handling
Frequently Asked Questions
It regulates fluid outlet pressure coming from a pump or pressurized source, ensuring consistent and controlled material flow to spray guns or dispensing valves.
Yes, the stainless-steel wetted components are specifically designed for corrosion resistance, making it suitable for harsh and reactive fluids.
No, it is not a pump. It only regulates pressure supplied by an external pump or pressurized fluid system.
The inlet is 1/4" NPT female and the outlet is 1/4" NPT male.
