Solar Hot Water Panel Freeze Protection Valve Black Plastic

In cases where freezing is a constant concern you might consider a freeze protection valve.

Solar hot water panel freeze protection valve black plastic.

This cycle will repeat as often as necessary to help prevent freezing. A freeze protection valve is a mechanical device that opens at 35ºf and closes at 40ºf allowing water to flow through the piping to keep it from freezing. Such systems should have copper bronze brass stainless steel plastic rubber components in the plumbing loop and plastic or glass lined storage tanks. Our freeze protection products are classified as thermal valves these valves sense ambient temperature when temps reach 35f the valve opens and purges fluid.

Solar water heating systems which use liquids as heat transfer fluids need protection from freezing in climates where temperatures fall below 42ºf 6ºc. When temperatures approaching freezing approximately 34 f the valve will open. Typically in solar applications the valve port opens on descending temperatures allowing the near freezing water in the solar panel to be discharged and replaced with warmer supply water. Active closed loop is the final type of solar water heating system on my list fig.

Many direct solar thermal systems use these devices. That is besides the point now i am trying to fix it. The frost protection valve is designed to protect a solar collector panel from frost damage when the outside air temperature drops. Another type of solar water heating system is re circulation.

The photovoltaic solar panels or pv solar panels convert the sun s energy into electricity which then can be used to heat water. When the warmer water reaches the valve the port closes and water discharge stops. We are set up with a solar water heating system here in new zealand. Options 1 4 will take care of 95 of our customers.

Keep your solar collectors and exposed pipes from freezing with the vernatherm solar freeze protection valve the vernatherm valve contains a thermal actuator that opens the valve when the temperature approaches freezing and re closes it upon warm up. The solar freeze protection valve contains a thermal actuator. Water is coming out on to the roof from what i believe is the freeze protection valve. The air temperature is monitored by a sensitive wax filled element which reacts by opening the fpv valve seat when the temperature drops.

This method of freeze protection activates a pump to circulate a little bit of hot water from the storage tank back into panels when low ambient temperatures are experienced. The valve operates without any electrical power. Solar panels can also directly heat water by heating water filled pipes within the solar panels or by heating a transfer fluid such as antifreeze usually propylene glycol.