N45b m1manual

1. It may not be enough for you to notice. 2. Yes. 3. Yes because you have to check the pressure gauge as you increase the pressure. 4. No way to tell. Just turn it and then check the pressure. 5. Installing the PRV should have increased the problem with the TPR valve leaking, not eliminate it.

No, that did not solve the problem. Empirical logic says that you either have an additional plumbing problem in the house, or there is some other factor at work. It does not matter how much or how little hot water is used. As soon as any cold water is heated it generates extreme pressure. The amount of cold water just determines how long the TPR valve will leak.

N45b m1replacement

I have a Water Pressure Reducing Valve in my system (Watts N45B-M1). It is installed in the ground, just inside the meter (on the house side). It is set at the factory preset of 50psi. The pressure to the valve is 100psi. The installation of this valve eliminated some water hammer issues. It also eliminated some discharge from the TPR valve on the gas water heater as it reheated water. The only thing this valve doesn't give us is adequate pressure in the shower. Therefore, I would like to adjust the valve to provide about 60psi and I have a few questions regarding this. 1) Will increasing our pressure from 50psi to 60psi be noticeable, specifically in the shower, or should I make it higher? 2) I have the instructions for adjusting this device. Is adjusting the pressure as easy as it appears, just loosening the lock nut and turning the adjusting bolt? 3) Can the adjustment be made with the main water valve (meter) still turned on? 4) If the incoming pressure is 100psi and the PRV is set to 50psi, about how many turns of the adjusting bolt will increase the pressure to 60psi? I have a pressure gage, but I would like to get an idea of how many turns to make. Any advice will be appreciated.

WattsN45B M1Repair Kit

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The bypass will open at 135 lbs, only if the city main pressure is less than 135. It is an added feature, but expansion tanks at the place of where thermal expansion takes place is the best application.

watts n45b-m1 adjustment

It reduces it, but the pressure will increase until it reaches the city side pressure, but that pressure is why you installed the PRV in the first place.

<5. Installing the PRV should have increased the problem with the TPR valve leaking, not eliminate it.> Understood. But we're not using as much hot water to shower, which is our biggest usage of hot water, so the heater isn't having to run as much/long. Also, the plumber installed a new TPR valve on the water heater and that may have actually resolved that problem. Thanks for the information.

1) Will increasing our pressure from 50psi to 60psi be noticeable, specifically in the shower, or should I make it higher? Only way to find out is to try. 2) I have the instructions for adjusting this device. Is adjusting the pressure as easy as it appears, just loosening the lock nut and turning the adjusting bolt? Yes. 3) Can the adjustment be made with the main water valve (meter) still turned on? Yes. 4) If the incoming pressure is 100psi and the PRV is set to 50psi, about how many turns of the adjusting bolt will increase the pressure to 60psi? I have a pressure gage, but I would like to get an idea of how many turns to make. Buy a hose bib pressure gauge. It will indicate the static pressure and any changes to same as you make your adjustments.

I would never install a PRV without doing something to take care of thermal expansion. I have read numerous posts where PRVs have been installed, but nothing for thermal expansion....what gives? Deb The Pipewench

But the PRV has a built-in thermal expansion by-pass feature. Does this not eliminate or reduce the thermal expansion issue?

One reason could be that, like here, the discharge line is extended outside the building, usually in a "remote" area, so that the small amount of discharge would not be noticed unless someone was in that area and noticed that the ground was wet, and even then they might assume it was from the plant irrigation syste.