Flow Actuated Unloader Valve by Giant Pumps | Pressure Washer Unloader

Flow Actuated Unloader Valves by Giant Pumps

Keep your pressure washer running at peak efficiency with these flow actuated unloader valves from Giant Pumps — one of the most trusted names in professional pump components. Designed to automatically bypass flow when the trigger gun is released, these unloaders protect your pump from pressure spikes and extend equipment life on the job site.

Specifications

• 3/8" FPT inlet / 3/8" MPT outlet
• Maximum temperature: 195°F
• Available in 3,000 PSI and 4,000 PSI configurations
• Multiple GPM flow ranges to match your pump output

Available Models

• 22648 — 1.5–4.0 GPM | 3,000 PSI
• 22650 — 3.0–4.5 GPM | 3,000 PSI
• 22655 — 3.0–5.5 GPM | 3,000 PSI
• 22654A — 3.5–4.8 GPM | 4,000 PSI
• 22666 — Repair Kit

Why Flow Actuated?

Flow actuated unloaders respond to trigger gun use — when flow stops, pressure bypasses automatically. This reduces heat buildup and wear on your pump seals, making them the preferred choice for contractors running high-cycle pressure wash operations.