The purpose of a pressure relief valve in a geyser is to release the pressure created inside due to evaporation of water.
it controls the pressure
The set pressure is the pressure at which a relief valve starts to open. When the valve is open and relieving, the pressure will be higher or lower than the set pressure, depending on the system and the valve design. That is the blow-off pressure.
Part I-Sizing and Selection Downstream Segment API STANDARD 520 EIGHTH EDITION, DECEMBER 2008 huddling chamber: An annular chamber located downstream of the seat of a pressure relief valve for the purpose of assisting the valve to achieve lift.
You mean GLOBE valve and that would depend on the size of the valve and the maker
cold differential test pressure -The inlet static pressure at which a pressure relief valve is adjusted to open on the test stand. This test pressure includes corrections for service conditions of superimposed back pressure and/or temperature.
reduces pressure
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.
Material 1. Geyser 2. Piping 3. Elbows 4. T Pieces 5. Vacuum valve 6. Pressure valve 7. Safety valve
http://www.blockbusterdrain.co.za/Geyser_Installation.htm
it controls the pressure
To regulate the pressure to a pre-determined amount.
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.
To regulate the pressure to a pre-determined amount.
Possibly, the water pipe feeding from the geyser to that tap has not been secured down properly and is not rattling, or you may need to turn the pressure down on the pressure valve feeding the geyser on the cold line to reduce the noise.
The pressure of a geyser can be altered from its controls. High pressure can be selected if someone wants the water jets to rise higher.
There are pressure regulator valves that exist. The purpose of these pressure regulator valves is to cut off the flow of a liquid or gas when the pressure within the valve reaches a certain level.
To maintain positive pressure in the AHU coil