Hi everybody
I‘d like to make one question about control valve position. My question is that at which position is better to put a control valve before or after a PHE or any devise in order to have better control of flow either hot-water or cooling water and why.
Pl’s advice
I‘d like to make one question about control valve position. My question is that at which position is better to put a control valve before or after a PHE or any devise in order to have better control of flow either hot-water or cooling water and why.
Pl’s advice