Fire Pump Parts

Hale Thermo Relief Valve


The replacement of a Hale Thermo Relief Valve should be based on its condition and performance. As a general rule, relief valves should be inspected regularly and replaced if there are any signs of wear or damage that could compromise their ability to function properly.

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Hale Thermo Relief Valve

A Hale Thermo Relief Valve is a specialized valve designed to regulate the temperature of a fire pump system. It is typically installed in the discharge line of the pump and is designed to open when the temperature of the pumped water exceeds a certain threshold.

When the pump is operating, the friction generated by the movement of water through the system can cause the temperature of the water to increase. If the temperature becomes too high, it can damage the pump or other components of the fire protection system, potentially rendering it inoperable.

The Thermo Relief Valve is designed to prevent this from happening by opening and releasing a portion of the hot water from the discharge line, allowing cooler water to enter and reduce the temperature of the system. This helps to protect the pump and other components from damage and ensures that the fire protection system remains operational.

Hale Thermo Relief Valves are available in a range of sizes and configurations to meet the needs of different fire pump systems. It is important to ensure that the Thermo Relief Valve is properly installed, maintained, and tested as part of the overall fire protection system to ensure reliable operation in the event of a fire.

Here are some factors that may indicate that a Hale Thermo Relief Valve needs replacement:

  1. Age: Relief valves have a finite lifespan, and their performance may degrade over time due to wear and tear. Manufacturers may provide recommendations for the expected lifespan of their valves, and it is important to follow these recommendations.
  2. Leaks: If the valve is leaking or not closing properly, it may need to be replaced. Leaks can indicate that the valve is not functioning as intended, which could compromise the safety and effectiveness of the fire protection system.
  3. Overheating: If the pump system is overheating and the Thermo Relief Valve is not opening as it should, this could be an indication that the valve is malfunctioning and may need to be replaced.
  4. Changes in System Conditions: Any changes in the fire protection system, such as increased water flow or a different type of fluid being pumped, may require adjustments or replacement of the Thermo Relief Valve to ensure that it is functioning properly.

It is important to consult with a qualified technician or service provider with experience working on fire pump systems to evaluate the condition of the Thermo Relief Valve and determine whether replacement is necessary. Regular inspection, maintenance, and testing of fire pump systems can help identify issues before they become major problems, reducing the likelihood of downtime and ensuring reliable operation in the event of a fire.


Additional Information

Weight 3 lbs


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Audra Jaconetti
April 5, 2021

Do you have a Hale 538-1260-00-0 in stock? Can it ship today if I order with a guarantee of receiving by Wed. 4/7.

Dave Moyer
April 5, 2021

I do have one in stock. If you order before 2PM I can guarantee it will ship today. However I can not guarantee what happens once it is in the hands of UPS.
Thank you,


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