Compatible Machines & System Applications
- Graco industrial fluid circulation systems
- Graco spray finishing systems
- Graco paint and coating circulation loops
- Graco pump-and-return fluid systems
- Graco industrial dispensing and coating equipment
This regulator is a system-level component and is selected based on pressure, flow, and plumbing requirements rather than a single sprayer model.
Graco 237503 Back Pressure Regulator Overview
The Graco 237503 Back Pressure Regulator is designed to maintain consistent upstream fluid pressure in circulation and spray systems. It helps stabilise fluid flow, reduce pressure fluctuations, and protect system components by regulating excess pressure in return lines.
This regulator is commonly installed in industrial coating and finishing systems where stable pressure is critical for consistent spray quality and reliable pump performance.
Key Functions
- Maintains consistent back pressure in fluid systems
- Improves spray pattern consistency
- Reduces pressure surges in circulation loops
- Protects pumps, hoses, and valves from pressure instability
Material & Design
- Durable construction suitable for industrial environments
- Manual adjustment for precise pressure control
- Compatible with water-based materials and catalysts
- Compact design for easy integration into existing systems
Technical Specifications
| Part Number | 237503 |
| Product Type | Back Pressure Regulator |
| Adjustment Type | Manual |
| Typical Maximum Pressure | Up to approximately 180 psi (12.4 bar) |
| Applications | Fluid circulation, spray finishing, coating systems |
Frequently Asked Questions
A back pressure regulator maintains a set pressure upstream in a fluid system by controlling excess pressure, ensuring smooth and consistent fluid flow.
No, this regulator is not machine-specific. It is used across multiple Graco fluid circulation and spray systems where back pressure control is required.
It is usually installed in return lines or circulation loops to maintain stable pressure in spray finishing and coating delivery systems.
