PEX Temp/Press Ratings
160 psi at 73°F
100 psi at 180°F
80 psi at 200°F
Note: As temp increases pressure decreases
Water heaters....
Normal Hot water temp is 130*F/140*F depending on Brand
Hi Temp T-stat...open at 170*F/180*F depending on Brand
T&P Relief Valves...Open at 210*F/150 psi
So for safe operations....
Pressure Regulator set at 65 psi MAX (static pressure---no flow)
After having a fitting break while on city water using a Watts Reg set for 50# and flooding which resulted in $6000 in repairs/costs I use nothing BUT pump/fresh water tank
Pumps can be quieted but I prefer to hear it run...cause if it is running W/O demand then I KNOW there is a LEAK