Never heard of that brand , but generally the only purpose of valves on tanks is to relieve high pressure. If this valve is piped down to floor or drain then that is definitely its function.
reduces pressure
The purpose of a pressure relief valve in a geyser is to release the pressure created inside due to evaporation of water.
Material 1. Geyser 2. Piping 3. Elbows 4. T Pieces 5. Vacuum valve 6. Pressure valve 7. Safety valve
There are approx. 4 valves on a geyser. depends which one
http://www.blockbusterdrain.co.za/Geyser_Installation.htm
it is a type of geyser
A hot spring that naturally shoots steam and boiling water is called a geyser.
A Conical Geyser (or cone)
it's a cone geyser.
the most common cause for a geyser to erupt is due to a tempreature and pressure problem. many plumbers who dont know how to install geyers properly, plug off the TP safety valve outlet (Temp and Pressure), what happens, the thermostat in the geyser fails and cannot control the tempreature inside the geyser, causing the geyser to over boil, which then creates extra pressure (because of the steam) within the geyser, so when that safety outlet is plugged off the geyser takes an enormous amount of strain, and then it finally explodes. it can be devestating and has known to rip roofs off houses.
Castle Geyser
Whirligig Geyser