Cat Pump 7590 Multiple Gun Pressure Unloader
The Cat Pump 7590 Multiple Gun Pressure Unloader is engineered for high-demand industrial pressure washing systems that require consistent performance across multiple outlets. Designed as a pressure-sensitive regulating unloader, it maintains steady system pressure while seamlessly shifting into bypass mode when flow is interrupted. This ensures smooth operation with minimal pressure fluctuation, even when alternating between multiple spray guns.
Built with durable brass construction and a high-flow capacity of up to 52 GPM, the 7590 model is ideal for complex cleaning systems using weep guns, multi-nozzle setups, or solenoid-controlled applications. Its flow-through design minimizes system strain while protecting pumps from pressure spikes and operational wear, helping extend equipment life and improve efficiency.
With easy external pressure adjustment and reliable bypass performance, the Cat Pump 7590 is a trusted solution for professionals who need dependable pressure regulation in demanding environments.
Key Features
- Maintains consistent system pressure during operation and bypass
- Designed for multiple gun and multi-nozzle systems
- Minimizes pressure fluctuation between active spray guns
- Durable brass construction for long service life
- External pressure adjustment with locking nut for safety
- Flow-through design for compact and efficient installation
- Supports pressure-sensitive regulation with pump protection
Applications
- Industrial pressure washing systems
- Multi-gun cleaning stations
- Car wash systems and fleet washing
- Food processing and sanitation cleaning systems
- Manufacturing equipment cleaning
- Agricultural and heavy equipment washdown
- Chemical and process spray systems
Specifications
- Maximum Flow: 52.8 GPM
- Minimum Flow: 10 GPM
- Pressure Range: 400 – 2175 PSI
- Inlet Port: 1" NPT(F)
- Discharge Port: 1" NPT(F)
- By-Pass Port: 1" NPT(F)
- Material: Brass
- Maximum Temperature (NBR): 140°F
FAQ
What makes the Cat Pump 7590 suitable for multiple guns?
It is specifically designed to maintain stable pressure even when multiple spray guns are used alternately, reducing system fluctuation and improving consistency.
How does the bypass function work on the 7590 unloader?
When the trigger is released or flow is blocked, the valve diverts water into bypass mode while maintaining line pressure, allowing quick return to full pressure when reopened.
Can the pressure be adjusted easily?
Yes, the unloader features an external adjustment mechanism with a locking nut to safely fine-tune system pressure.
What happens if the system operates below minimum flow?
Operating below 10 GPM may cause the unloader to cycle, which can reduce performance and increase wear over time.
Is the Cat Pump 7590 compatible with chemical applications?
Yes, with appropriate O-ring materials (such as optional FPM), it can handle higher temperatures and certain chemical environments.
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