February 2022


Vacuum relief valves are utilized when the pressure of gases or liquids is so high that the pressure can decrease to levels the piping system cannot withstand. When the pressure inside the piping system suddenly drops due to the movement of the substance in the pipe, a vacuum is formed. Because of the intensity, the substance can only be released by the vacuum relief valve products. The vacuum relief valve can be opened to release the vacuum if the system becomes unstable owing to low pressure.

How to use it with a water heater?

When a back siphon (vacuum) is produced, a vacuum relief valve above the water heater vents to the atmosphere. Air can enter the vacuum relief valve instead of venting from the heater or tank. Doing this prevents the heater from elements and the burner from overheating. Vacuum relief valves are utilized in radiators to stop water loss when the system is drained or depressurized.

Why not use it much on top-feed water heaters?

Top port water heaters use a dip tube to push cold water to the tank’s bottom. A reverse siphon vacuum is a risk for water heaters attached to the top, but it can be readily avoided by positioning a siphon hole close to the top of the dip tube. Until the vacuum enters the hole, this hole draws in water. Only being sucked back will do. Air is sucked through the spot when the vacuum reaches the area, preventing the tank from contracting. The standard for top water heaters, this “anti-siphon” mechanism is often located only a few inches below the tank’s top.

The material used to construct

Vacuum relief valve products are created from materials that are resilient for the majority of uses. When constructing valves, rubber gaskets are frequently used. Furthermore, the components commonly employed are determined by the elements that comprise the piping system in which they are installed. Therefore, the valve and tube will perfectly match each other. The relief valve, for instance, is built of plastic components with PVC threads and an all-rubber gasket if the pipe system is made of PVC plastic. An appropriate material composition typically enables the port to be securely shut when the valve is fitted into a system.

Difference between a Pressure Vacuum Breaker and a Vacuum Relief Valve

To avoid back suction, vacuum relief enables air to enter the tube. In contrast, a pressure vacuum breaker works as both an anti-siphon and a means of reducing the backflow of contaminated water. The pressure vacuum breaker opens when water starts to backflow, establishing an anti-siphon point and releasing the water through the relief port.

Difference between T&P valves and pressure relief valves

Water heaters that produce 180°F or less frequently employ temperature and pressure relief (T&P) valves. A high-pressure spring with a usual PSI rating of 125 or 150 is present. A temperature probe raises the seat at roughly 210°F (just before boiling). Use pressure-only relief valves since boilers run at low pressure and can reach more than 210°F. Pressure relief valves are available in several PSI values but are commonly rated at 30 PSI.

Portfolio management means various things to different people. However, in general, it is a way of balancing risks and rewards. And while the goal of any investment strategy seems simple, it usually depends on individual circumstances. In this article, we’ll talk about the most important factors you should consider in building an optimized portfolio.

Measuring ROI (Return on Investment)

The most elementary measurement of a portfolio’s performance is the return on investment, or ROI. By determining what each dollar invested is likely to yield, individuals can more effectively formulate a logical money-management strategy.

Obviously, ROI relies on the types of securities an investor chooses to hold, and this can change as market conditions improve or worsen. Usually, the higher the potential ROI the higher the risk and vice versa. Thus, controlling the risks is one of the main functions of proper portfolio management.

Measuring Risk

Because risk and reward are, in essence, two sides of the same coin, one’s tolerance of the former tends to influence or even dictate the latter.

In general, there are two ways to mitigate investment risk and still beat the prevailing inflation rate. The first is by carefully selecting securities, since some of them are riskier than others.

While an investor may hit a home run by buying a favorite penny stock, there’s always the possibility that he will strike out.

On the flip side, a government bond may not provide the opportunity to go around bases often. However, it’s not likely to strike you out of the game either.

Things to Consider

When deciding on the right portfolio blend, bear these things in mind:


Determine what you exactly want to accomplish. Find your objective; whether it’s to accumulate wealth or to hold on to what you already have.

Risk Tolerance

Be clear on how you want to handle the day-to-day fluctuations of the market and the resulting rise and fall of your net worth.

If you are the type that’s prone to wild reactions, it might behoove you to find more stable investments. True, it might take you longer to reach some of the financial goals you’ve set, but at least you’ll be sleeping well at night.

Know about what You Own

Often it helps to invest in businesses and industries that you know something about. Company A may have had a great quarter. However, if you know nothing about its industry, how do you know that the company will continue to be successful?

For that matter, how sure are you that people will continue using the company’s products 5 to 10 years from now? Knowledge and information about a certain business or industry don’t automatically answer these questions, but it would be great help  in the larger scheme of things.

When to buy or sell

By now, it must be obvious to you that you should be able to know when to buy and when to sell. Every purchase you make should have a purpose, and you should constantly re-evaluate that goal according to the market and other conditions.