Whether you're looking for a double orifice air valve, a combination air/vacuum valve or a triple acting air valve, there are a few things to know before you make the purchase.
Source: https://i.pinimg.com
Combination air/vacuum valves
Designed for the efficient release of air pockets from pressurized pipes, the BERMAD C75 double orifice air valve is a compact, high quality Combination Air Release Valve. It offers excellent protection against air accumulation, and minimizes water spraying during the release.
The design of the valve has been optimized for weight reduction, as well as corrosion resistance. A ductile iron body increases resistance to impacts. The valve is also equipped with corrosion-inhibiting components acting through the center shaft. This unique design also utilizes the latest Q10 and Q12 cast iron, WRAS approved coating, and EPDM instead of normal rubber.
The valve is available in dual or single body versions. The single body version is less expensive and more compact. The valves are sized based on the difference between the upstream and downstream flows. The difference is used to calculate the air release capacity. The differential pressure is typically 2-psi.
The valve is installed on the pipe by a flange. The air release valve is designed to float with the water force, and floats close or open to release air.
Source: https://i.pinimg.com
Double chamber, double orifice air valves
Whether you are planning to use your water pipe for potable water or filtration, you will need an air valve to help you out. An air valve is a hydro-mechanical device that allows you to release large amounts of air into the system. They are often used in water distribution networks. You can also use them in sewer networks.
Air valves are available in many different styles and designs. They are made of stainless steel, carbon steel, or ductile iron. They are designed to be durable and have been tested to perform well. They are most commonly used on liquid piping systems, though they can also be used for filtered water applications.
They come in single and double chamber styles. A double chamber air valve has a small orifice that lets air into the system under pressure and an outlet that vents air during pipe filling and draining. These valves can be configured to handle a variety of different pressure classes.
AVK double orifice, triple acting air valves
AVK double orifice, triple acting air release valve have several benefits to offer. They provide automatic rapid pipe filling, automatic rapid pipe draining, automatic discharge of accumulated air and automatic air release. They are based on the Aerokinetic principle, which means they have larger capacities than conventional air relief valves.
The Aerokinetic principle involves a unique design which prevents a valve from closing before all the air has escaped. The best way to determine the true capacity of a valve is to measure the difference between the actual pressure and the nominal pressure. For instance, if the nominal pressure is 80 bar, then the true capacity of the valve would be 0.1% of the total water flow.
The D-040 series of AVK air valves have an integrated air and vacuum function. This feature discharges a large volume of air during filling and discharge and provides an effective means of controlling sub-atmospheric pressures. They also have a streamlined design to avoid corrosion and reduce the risk of low-temperature deterioration.
Choosing the wrong size air valve can negate the purpose of a release valve
Choosing the wrong size Anti-shock air release valve can lead to a problem that can ruin your piping system. This is because the smaller the valve, the less air it can exhaust from the pipeline. Larger air valves, however, will exhaust more air from the pipeline. The amount of air vented from the valve is directly related to the pressure at the valve's location. If the pressure is too low, the pipe could collapse.
It's also important to make sure that the outlet-to-inlet pressure ratio of the system is not too low. This can lead to sonic flow and damage to the system. This is why it's important to consult with a professional before choosing the right size air valve. Usually, a maximum pressure differential of five psi is used. There are also safety factors for this, such as a four-point safety factor. The formula below can help you calculate how much air you need for your system.
In addition to this, it's important to choose an air release valve that is the correct size for the pressure differential. The valve is typically attached to a compounded hinged float mechanism that allows it to open and close. The float helps prevent leaks.
Facebook Conversations