Friday 2 October 2020

How To Adjust A Pressure Reducing Valve: The Easy Way

Realizing how to adjust a pressure reducing valve is an important part of any DIYer's toolkit. In this article, we'll start from scratch and walk you through the cycle. We'll also disclose to you all that you have to think about pressure reducing valves and why you may need to adjust yours in any case. 

How Does Pressure Reducing Valves Work? 

As their name would recommend, pressure reducing valves control the progression of water into your home. Without a pressure reducing valve, this water would travel through your pipes at a rate unsuitable for residential use. 

Water heaters in Phoenix are typically capable of handling pressure lower than 80 psi. City officials, meanwhile, consider pressure ranging from 40 to 100 psi acceptable. On the off chance that the pressure of the water arriving at your home reaches the upper finish of that range, it will damage your water heater as well as other appliances and lines as well. 

That's the place a residential water pressure regulator (another name for 'pressure reducing valve') comes in. 

Okay But How Do Pressure Reducing Valves Work?

Alright, in case you're unsatisfied with the general explanation we've given above, here's a more technical one. 

A pressure reducing valve is typically near your water shutoff valve. You'll realize you're taking a gander at the valve because it will have a gauge nearby. 

Inside the valve, there are a spring and diaphragm. These two components interact with approaching water pressure, either contracting or enlarging the gap that your water ultimately passes through. 

At the point when the water enters the valve at a pressure greater than what it's been set to allow, the diaphragm and spring will contract and diminish the stream. The opposite is also evident, however. On the off chance that the water enters the valve at too low a pressure, the spring and diaphragm will expand and allow the water to exit through a larger gap. 

Your pressure reducing valve setting will figure out what it considers acceptable at both the upper and lower cutoff points of its range. 

On the off chance that this doesn't make total sense to you, don't stress. The exact mechanics and material science of the cycle confound even some accomplished handymen. What everybody knows is that the cycle works. 

How To Adjust Your Pressure Reducing Valve 

You'll require a wrench of the correct size to play out the adjustment. 

Since you have a decent understanding of how pressure reducing valves work, you ought to have an idea of what's happening when you do the adjustments. 

First of all: Should You Adjust The Pressure? 

In case you're encountering increased or decreased water pressure because of an abnormality in your municipal water gracefully's capacity, adjusting the valve may toss things messed up when the framework gets back to business as usual. 

Therefore, you'd be shrewd to contact your water department to check whether the issue lies with them. If not, it's conceivable that your valve has left wack somehow and requires adjustment. 

Also, note that adjusting your pressure reducing valve setting without completely understanding what you're doing can lead to issues. Setting the pressure too high wastes water and can be harmful to your appliances. In extraordinary cases, your water heater can detonate. Appliances like water conditioners can also face damage. 

In other words, in case you're uncertain about what you're doing, contact professionals like our technicians at American Home Water and Air. 

Step 1: Locate The Valve 

A pressure reducing valve usually looks like a chime or vault. As referenced earlier, you'll usually observe it alongside a gauge. It may be incorporated right with your water meter. By and large, however, you'll discover the valve as a separate gadget that lies after the meter inside your home's water flexibly chain. 

Step 2: Identify The Adjustment Method 

Many valves have a nut, screw, or handle attached to them that allow you to do the actual adjusting. Turning the screw or handle clockwise typically increases the water pressure while turning it counter-clockwise brings down the pressure. 

This may be irrational since it's something contrary to how faucets work, so make sure you realize what bearing to turn so as to get your ideal pressure. 

Step 3: Use A Water Gauge To Test Your Pressure 

Before you make any adjustments to your pressure reducing valve, you have to understand the current circumstances. While you may realize your pressure is too high because of symptoms, for example, dribbling faucets, you want to get an exact reading on the pressure. 

There are a couple of places you can attach the gauge to get a decent reading. As long as the installation is downstream of the valve, it's doesn't particularly make a difference. Many individuals attach the gauge to a water heater drain valve or basically a faucet. 

Step 4: Understand Whether You Have A Closed Or Open System

Basically, an untamed water heater framework allows abundant water pressure to make its way back into your virus water gracefully line and eventually out into the municipal water flexibly. A shut framework doesn't allow overabundance pressure to make it back out into the municipal flexibly. 

At the point when thermal expansion happens, this can be dangerous. To avoid this danger, you should match the pressure of your regulator to the pressure of your expansion tank. 

It's not advanced science — yet it's acceptable to know before you start making adjustments. 

Step 5: Adjust Your Pressure Reducing Valve

Most valves have a locking nut. When you unscrew this nut, you will have the option to turn the adjustment screw, handle, or fastener. Adjust it until the pressure shown on your gauge reaches the ideal level. For most residential purposes, that means a pressure under 80 psi. 

Try not to make colossal adjustments immediately. Make close to a quarter turn each time before taking a glance at the gauge to perceive what impact you're having. 

Also, make note of the adjustments you make so you can return them in the event that you happen to go too far. 

Step 6: If Necessary, Adjust Your Thermal Expansion Tank Pressure

On the off chance that you have a shut water heater framework, you will also need to adjust the pressure on your thermal expansion tank. To do this appropriately, you'll need an air pressure gauge to test the current pressure of your expansion tank. Attach the valve straightforwardly to the air channel valve on the tank. 

When you've decided the pressure, utilize a hand siphon to raise it to a pressure equal that of your home's water pressure. Try not to utilize an air blower; doing so chances damage. 

Step 7: Detach The Water Gauge and Lock The Adjustment Nut 

Make sure you lock the adjustment nut on your pressure reducing valve. This will keep the screw from turning easily, which would fix your adjustments. 

When To Replace Your Pressure Reducing Valve 

It's suggested that you check your water pressure at least once every year to guarantee it's at the ideal level. As with most mechanical gadgets, however, your pressure reducing valve can start to work inappropriately with time. 

You'll realize this is the case when adjustments to your valve don't bring about changes to your water pressure. The pressure may be reliably high regardless of your endeavors and you'll probably see issues, for example, water hammers and trickling faucets. 

In the event that you think you have to replace your pressure reducing valve, you'd be smart to contact a professional to carry out the responsibility. It very well may be a mistaking cycle for unpracticed DIYers as it requires patching, plumbing work, and potentially the installation of other gear to mitigate any issues you run over. 

When the valve has been installed professionally, adjusting it all alone is fairly straightforward assuming you have a strong understanding of the means laid out above. 


A pressure reducing valve is an important part of your residential water framework. It allows you to adjust the pressure of water arriving in your home to a level that is suitable for your appliances. 

Before you approach adjusting the pressure, contact your municipality to guarantee the abnormal pressure isn't only a temporary issue with their frameworks. 

On the off chance that you infer that the issue lies with your valve, adjust it utilizing the means above.

Aira Euro Automation is the Best Pressure Reducing Valve Manufacturer in India, Aira has a wide range of pneumatic and manually operated industrial valves. They export their products in more than 20 countries including Gulf countries.

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