Berita

Applications of Strainers in Industry

Strainers are used industrially for filtering liquids like water, oil, and sand. Additionally, they remove rust, leaves, and other organic debris from the flow stream.

When processing materials, different mesh sizes are employed to capture particles of 40 microns or greater. 60-mesh strainers typically capture particles at 240 microns, while 100-mesh strainers can handle particles as small as 150 microns or greater.

When selecting a strainer, material sensitivity to flow is an important consideration. This can be determined by pipeline velocity, differential pressure drop, and open area ratio.

Pipeline Velocity – This refers to the speed of liquid through a system, measured in gallons per minute (GPM). Accurate measurement of this flow rate is essential in selecting an appropriate strainer size and determining what differential pressure can be experienced without damaging the basket.

Viscosity (Viscosity) – Viscosity is the sensitivity of a fluid to flow, and it’s essential to understand how viscosity varies based on temperature and the material being filtered.

Dirt Loading (DL) – This refers to the weight percentage of particulate contaminants in a pumped liquid or slurry form that must be removed for moisture removal. It’s essential that this liquid be correctly pumped in order to avoid filter clogging and subsequent system malfunction.

How To Select A Pipeline Strainer?

A pipeline strainer is an advanced filter that separates contaminants and particulates from the liquid. Not only does this improve efficiency in a process, but it can reduce maintenance costs, too, since particles won’t damage downstream equipment.

When selecting a strainer for your pipeline, there are several factors to take into account. One of these is the size of the hole and mesh, which determines how many particles can be captured by the strainer.

In general, strainers should have holes slightly smaller than the particles you want to filter. This ensures any foreign debris is captured before reaching downstream equipment and helps protect your investment.

When selecting a basket filtering element, there are a few essential things to take into account. Strainers' materials used can significantly affect how well the element will hold up under high pressure.

When selecting a pipeline basket strainer, the open area ratio (OAR) should be taken into account. This quantity determines how long a strainer can be used without cleaning or losing pressure across its basket or screen.

In most cases, the OAR is calculated by analyzing the relationship between an internal cross-section area of a basket or screen and its overall open area. A wider opening allows more time for the basket or screen to work without needing cleaning, which may cause pressure loss.

Differentiating Filters and Strainers

When it comes to particulates that need removal, the size of the particles can determine which strainer or filter is appropriate. If they are larger than 40 microns in diameter, a strainer would be an optimal option; if smaller, then filtering would be the better solution.

Selecting the correct mesh for a strainer or filter is critical in determining its effectiveness and how often it must be cleaned. If particulates being removed are extremely fine, a finer mesh may be needed; however, this would also necessitate more frequent cleaning sessions.

Another critical distinction between a strainer and a filter is the pressure of gas or liquid that passes through them. With a strainer, there is no noticeable drop in pressure as the substance passes through.

Conversely, substances passing through a filter will typically experience an abrupt decrease in pressure regardless of whether they need to be cleaned or not. This is essential because lower pressure enhances filtration efficiency and minimizes the possibility that debris will escape from the system.