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In a solar water heating system, the Pressure Temperature valves are the most common component that encounters issues that results to repair, replacement or just basically tightening it. However, the Pressure Temperature valves also play an important role in the entire system. Let us discover what is a Pressure Temperature valve, its function and how a malfunctioning valve can greatly affect your entire solar water heating system.
What is Pressure Temperature Valve?
The Pressure Temperature Valve or also known as T&P valve is the master controller in regulating pressure for your solar water heating system. It has the capability to discharge too much pressure from accumulated heat or to expel excess pressure in the tank.The other term for it is “relief valve” named after its main functionality.
What does it do? How come it is important in the entire water heating system?
Lets just put it this way, if you can imagine how a chimney works and its function, that is the simplest form of the action the T&P valve does. The T&P valve acts as a chimney for your water heating system. Water gets hot because of the heating element, both water, and the heating element reaches their specific temperature which results in water heater tank expansion. Some regularly expand but sometimes too much expansion is observed. That’s when the T&P valve opens and expels hot water and steam through the discharge tube. That’s the reason why it is called pressure temperature “relief valve” since it relieves the entire system and saving it for clogging and eventually blowing up of the tank.
Common Problems of T&P Valve
With the new regulation, the T&P valve should be installed at all times in every water heating system. But also with this standard process, T&P valve is rarely used and overtime combination of chemical and mineral will start to build up which causes the valve to stiffen. This is a common safety hazard but when the temperature starts to spike with this valve condition, it may not open up and an explosion might happen.