OVERVIEW & BENEFITS
The General Pump 100558 Thermal Relief Valve is a compact, high-performance safety device designed to protect pressure washer and softwash systems from overheating. This thermal relief valve automatically opens at 145°F, allowing hot water to discharge and preventing damage to pumps and hoses.
Includes:
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One (1) thermal relief valve
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1/2″ Male NPT threaded inlet
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Compact body design for tight installations
Performance Specifications:
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Size: 1/2″ MPT (Male Pipe Thread)
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Activation Temperature: 145°F (62.8°C)
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Material: Brass body with internal stainless and high-temp components
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Model Number: 100558
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Brand: General Pump
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Discharge Type: Poppet-style, automatic reset
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Application: Pressure washer pumps, softwash pumps, or high-temp rinse systems
Key Benefits:
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Protects pump systems from heat-related damage during bypass or extended idle
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Automatically resets after cooling, no manual reset required
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Compact size fits directly into pump manifold or discharge line
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Rugged construction withstands demanding field environments
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Easy to install on most 1/2″ MPT-compatible pumps or tees