What You Need to Know About Pressure-Reducing Valves

The application of pressure-reducing valves is a critical element of the successful operation of many modern plumbing systems. Pressure-reducing valves can help to protect pipes and other components of these systems from overpressurization, which can cause permanent damage and safety issues. Abacus Plumbing of Austin, Texas, provides residential and commercial clients with a range of plumbing services, including repair of pressure-reducing valves. Below, Abacus' plumbing technicians explain what every property owner in 78757 needs to consider when it comes to pressure-reducing valves.

1 – The Need for Pressure-Reducing Valves

It is quite normal for water pressures to spike in residential and commercial plumbing systems. In most cases, these fluctuations are within the pressure setting of the regulator or shutoff valve connected to the water main. However, significant pressure fluctuations can occasionally cause damage to the pipes if the pressure is increasing beyond what the pipes can handle. The function of pressure-reducing valves is to limit the pressure of the incoming water to a safe level before it enters into the system. This means that the water pressure in the pipes across the property will be kept stable while the pressure in the water main can achieve unacceptable levels.

2 – Types of Pressure-Reducing Valves

Pressure-reducing valves typically function by means of two different mechanisms. The first type is known as a Pilot-operated pressure-reducing valve. This type uses a combination of an adjustable internal spring and an external pilot valve to regulate the pressure in a plumbing system. As the pressure of the incoming water continues to increase, the pilot valve gradually increases the amount of water that is released into the system, thereby controlling the pressure. This type of pressure-reducing valve generally requires no external power, as the pressure from the main line is effectively used to regulate its operation.

The second type of pressure-reducing valve is known as a Diaphragm-operated pressure-reducing valve. This type uses a diaphragm, which is connected to the valve inlet. As the pressure of the incoming water increases, the diaphragm expands until it relates this pressure to the valve outlet, thereby controlling the pressure. This type of pressure-reducing valve is ideal for very large commercial plumbing systems as it can be adjusted to reduce the pressure in small increments.

3 – Factors to Consider When Sizing a Pressure-Reducing Valve

When selecting and sizing a pressure-reducing valve for a plumbing system, there are a few important factors to consider.

The first factor to consider is the GPM (Gallons Per Minute) of the valve. Generally speaking, the greater the GPM of the valve, the larger the size and pressure range of the valve. If the valve will be used in a commercial system, the GPM should reflect the needs of the specific facility.

The second factor is pressure range. The pressure range must be set in such a way that the required pressure can be achieved while avoiding the possibility of over-pressurization. It is also important to select a valve that has the capacity to handle both increases and decreases in pressure over time.

The third factor to consider is the type of installation. Certain types of pressure-reducing valves may require more or less installation space if they are to be installed correctly. It is important to select a valve that can be easily installed with minimal disruption to the plumbing system.

Finally, it is important to look for valves that have been certified by a reputable industry organization, such as the American Society of Mechanical Engineers (ASME). Valves that have been certified by ASME are generally of the highest quality and are likely to have the greatest longevity.

4 – What to Do When a Pressure-Reducing Valve Fails

In the event that a pressure-reducing valve fails, it is important to call a professional plumber immediately. Pressure can quickly become dangerous, and it is essential to get the valve repaired as soon as possible to avoid any further problems. Additionally, if the pressure-reducing valve has reached the end of its life, the plumber should recommend the best replacement for the system.

5 - Choosing a Reputable Plumber for Pressure-Reducing Valve Services

When selecting a plumber to work on a pressure-reducing valve, it is important to choose one who not only meets the highest industry standards but whose customer service is also of the highest quality. Abacus Plumbing of Austin, Texas, has a team of professional plumbers who are extensively trained and certified in all aspects of residential and commercial plumbing. All Abacus plumbers are committed to delivering exceptional customer service, and they will demonstrate the highest levels of expertise and attention to detail to ensure they deliver the best service possible.

Last ideas

Pressure-reducing valves play a critical role in the successful operation of modern plumbing systems. There are a number of factors that must be considered before selecting and sizing a pressure-reducing valve, including the GPM, pressure range, installation space, and certification level. If the valve fails, it is essential to contact a professional plumber immediately to investigate the issue. Abacus Plumbing of Austin, Texas provides a range of professional plumbing services, including care and repair of pressure-reducing valves.

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