The 1/2″ Thermal Relief Valve (Model 85.300.024BEP) is designed to prevent overheating in high-pressure pump systems during bypass mode. When water inside the pump reaches approximately 145°F, this thermal valve opens to discharge hot water and allow cooler water in, protecting your pump seals and components.

Includes:

• One pre-set thermal relief valve

• Threaded 1/2″ Male NPT inlet for direct pump or bypass line installation

• Compact design with aluminum valve body

Performance Specifications:

• Opening temperature: 145°F (63°C)

• Maximum pressure: 200 PSI

• Flow range: Up to 25 GPM

• Thread size: 1/2″ MNPT

• Material: Lightweight aluminum body

• Weight: Approximately 0.3 lb

• Use case: Prevents pump overheating during idle/bypass operations

Key Benefits:

• Protects pump systems from thermal damage by releasing overheated water

• Compact and lightweight design fits most softwash or pressure washer pump configurations

• Pre-set for 145°F activation—no adjustments required

• Corrosion-resistant aluminum body is suitable for outdoor use

• Reliable and maintenance-free thermal protection for extended pump life