Replace a Water Pressure Regulator

I'm going to show how to replace a water pressure regulator the valve that is currently installed no longer drops the pressure it won't adjust the pressure and it's the wrong size for this were supply system turn off the main water supply drain the water from the system my initial plan was to loosen the Union on the regulator however I couldn't break it free so I cut the pipe here I had to do that anyway because I'm installing a half-inch regulator and needed to cut this Frankenstein out of the system if you're replacing a regulator that's the same size ideally you would like to loosen this Union you put a wrench on this piece right here and another wrench on this large nut and turn the nut counterclockwise and then that would free up this side of the regulator and with this side of the regulator free if you have any play in the pipe you should be able to just turn the regulator and take it out of the pipe I wanted to break this connection right here but it wasn't coming loose easily so I chose to break loose the regulator and remove it so a little more room to work because it's unlikely that you'll be installing a different size regulator I'll highlight the work that pertains to a normal replacement install the direction of water flow with the arrow on the valve and make sure there's an o-ring at the Union you hopefully you haven't eaten all your popcorn yet and your eyes have glazed over stick around these at the end of the video I Grover have to adjust the valve and how to test it make sure that it is functioning properly measure where to cut the pipe if you were doing a direct replacement you would have a open section on the pipe take your new regulator and turn it clockwise onto the outlet side because I had to measure the pipes that I had to cut I installed the Union side of my regulator first if you're doing a direct replacement after you've installed the outlet side of the regulator then fasten the inlet side with the union double check to see that the o-ring is still in place my head popped out and fallen on the floor and tighten the Union you only need to compress the o-ring to make a waterproof seal turn on the main water supply I have pressurized the system and I don't have any leaks I've bled all the air out I have a water pressure test gauge on the hose bib and it reads 40 pounds it's a little low the target pressure should be 50 to 60 pounds I'll increase the pressure at the valve and I'll loosen the locking nut when adjusting the valve don't bottom the adjusting screw on to the bottom of the spring cage damage could occur so manufacturers require words to be flowing while adjusting the pressure this is a Watts brand they tell you not to flow water while making adjustments to the pressure to increase pressure turn the adjusting bolt clockwise to decrease pressure turn the adjusting bolt counterclockwise it took about four or five turns to raise the pressure to 50 pounds and I'm going to Snug up the locking nut the next thing I want to do is to check that the new regulator is doing its job properly I'm going to open the kitchen Pat Foley and create a demand and check and see how much the pressure drops the kitchen tap is open and looks like we lost about 8 pounds that's a sign that the regulator is working the regulator shouldn't drop more than 15 to 20 pounds when there's a demand on the system such as opening a tap the water pressure regulator I installed has a built-in thermal bypass I have an open system when the water heater heats the water it will cause thermal expansion and increase the water pressure if the bypass valve is working then when the pressure gets high enough the valve will open up and allow the water to flow back into the municipal water system I want to test the bypass valve to ensure that's working I'll let the gauge attached for two days and make sure that the pressure does not increase to an unsafe level two days have passed and the red needle on the gauge has stopped at the highest pressure that the gauge has recorded and that's about 90 pounds the pressure relief valves on order heater or typically set at 150 pounds 90 times is well below that pressure I also consulted tech support at watts and they thought that this was a normal level in the future I'll put up a video about thermal expansion and open and close water systems I hope you found this video helpful a thumbs up is always appreciated click on the channel name know-how now to see other videos and thanks for watching

Channel: Know How Now

Views: 152,376

Keywords: replace water pressure regulator, water pressure regulator installation instructions, install pressure reducing valve youtube, pressure reductin valve installation guide, water pressure reducing valve, leak water pressure regulator, leaky water pressure reducing valve, water pressure reducing valve replacement, change water pressure reducing valve, DIY replacing waer pressure valve, pressure reducing valve installation, pressure reducing valve replacement

Id: KJ1MReTK7GA

Length: 8min 24sec (504 seconds)

Published: Thu May 11 2017