⚡ Quick Answer
👉 Yes, if your water pressure is high or if you are using it at a commercial premise
🧠 Why
High pressure =
Pressure Relief Valve (PRV) leaking
unstable temperature
faster wear
🚀 Benefit
Stable pressure
Better heater performance
Longer lifespan
In fact Public Utilities Board (PUB) published an article with recommendations of water pressure for buildings on page 21:
"PRVs should be installed at locations where the water fittings downstream of the distributing pipe would not be subjected to pressure head exceeding 35 metres"
35 Pressure Head = 3.32 Bar Water Pressure