GP PULSAR4KHP Unloader Valve – 10.5 GPM, 4,050 PSI
Model: PULSAR4KHP
Category: Pumps → Pump Accessories → Unloaders / Regulators
Type: Trapped Pressure Unloader Valve – Adjustable, High-Flow / High-Pressure
The GP PULSAR4KHP Unloader Valve is a genuine OEM General Pump trapped-pressure unloader designed to regulate maximum system pressure while improving spray gun operation. By varying bypass discharge flow, this valve maintains consistent pressure control and helps protect pump components in demanding pressure washing applications.
⚠️ Note: When used with positive displacement pumps, the manufacturer recommends installing a separate safety relief device (sold separately).
Specifications
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Maximum Flow: 10.5 GPM
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Maximum Pressure: 4050 PSI
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Rated Pressure: 4500 PSI
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Maximum Continuous Temperature: 140°F
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Maximum Intermittent Temperature: 195°F
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Inlet Ports: (2) × 3/8″ NPTF
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Outlet Port: (1) × 3/8″ NPTF
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Bypass Ports: (2) × 3/8″ NPTF
Product Details
Brand: General Pump
OEM: Yes – Genuine General Pump Part
Application: Pressure Regulation / Pump Protection
Unloader Type: Trapped Pressure, Adjustable
Key Features
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Genuine OEM General Pump PULSAR4KHP unloader
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Handles up to 10.5 GPM and 4050 PSI
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Trapped-pressure design for smoother gun operation
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Adjustable knob with locknut for secure pressure settings
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Regulates maximum pressure by controlling bypass flow
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Built for professional and commercial pressure washer systems
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Reliable performance under continuous and intermittent use
