ZK4010 Pressure Unloader by General Pump | Summary
The General Pump ZK4010 is a high-performance trapped pressure unloader valve designed to keep your system running smoothly and safely. With a flow range from 2.11 to 10.5 GPM and rated for up to 4000 PSI, it’s an ideal fit for pressure washers and industrial cleaning systems using gas-powered or electric engines.
Equipped with a control knob for precise adjustments and dual 3/8" BSP-F bypass ports, this unloader ensures pressure is efficiently managed and redirected. Built for durability, it’s a dependable component in any high-pressure setup.
4000 PSI Trapped Pressure Unloader with Dual Bypass | Features
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Rated up to 4000 PSI with 10.5 GPM max flow
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Trapped pressure unloader—ideal for gasoline-powered systems
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Blue control knob allows easy pressure adjustments
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Brass body with stainless steel internal components for corrosion resistance
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Dual 3/8" BSP-F bypass ports for flexible plumbing configurations
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Great for mobile or stationary wash systems
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Built-in reliability from trusted General Pump quality
| Specification | Details |
| Brand | General Pump |
| Part Number | ZK4010 |
| Max Flow | 10.5 GPM |
| Max Pressure | 4000 PSI |
| Max Temperature | 185°F |
| Inlet Port | 3/8" BSP-F |
| Outlet Port | 3/8" BSP-F |
| Bypass Ports | (2) 3/8" BSP-F |
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