어떤 PTFE 라이닝 스트레이너가 필요하십니까: Y형, T형 또는 바스켓형?

빠른 답변:

Choose a Y-type for smaller debris loads and infrequent cleaning, a T-type when installation or maintenance space is limited, and a basket strainer when you need greater debris capacity and longer intervals between cleaning.

What Is the Difference Between Y-Type, T-Type, and Basket Strainers?

The main difference is where each design collects debris and how you get the screen back out for cleaning. This affects both where the strainer can go and how often you will want to service it.

A Y-type strainer places the screen inside a branch angled away from the main pipe. Debris collects in this branch, and the screen is removed through the same opening. The compact design is commonly used when the amount of material being removed is relatively small and frequent cleaning is not expected.

A T-type uses a tee-shaped body with the filtration element positioned across the flow path. Some designs provide side access, allowing the element to be pulled out laterally. This gives you another option when surrounding pipes or equipment make access from above difficult.

A basket strainer has a larger chamber containing a removable basket. The basket normally lifts out through a top cover, so maintenance happens above the pipe. Its larger straining area also provides more room for debris to accumulate before the element needs cleaning.

The filtration job may point you toward one of these designs, but that choice only works if there is enough room to install and service it.

Which Strainer Fits Your Piping Layout?

To know this, look at the direction of the pipe and where a technician will stand when the screen needs to come out. The body fitting between two flanges does not necessarily mean there is enough space to maintain it.

You’ll often see Y-strainers installed in horizontal lines, but they can also be used in certain vertical arrangements. In a conventional vertical installation, downward flow helps direct collected debris into the strainer pocket rather than letting it fall back through the line.

Clearance is also required along the angled branch. That’s because the screen has to travel far enough in that direction to properly clear the body. A PTFE lined Y strainer may have a compact footprint around the main pipe, but nearby equipment below it can still make screen removal difficult.

If the maintenance path is the issue, a T-type strainer can help by enabling the element to be removed from the side. Designs with lateral access can be useful in pipe racks and other locations where there is restricted overhead clearance. Keep in mind that there should be enough room beside the pipe to withdraw the whole element.

Standard basket strainers are generally installed in horizontal piping with the basket upright. Because the basket normally comes out through the top, you need vertical clearance above the housing. Check the space required to remove the entire basket, not only enough room to unbolt and open the cover.

If two or more designs still fit your piping, the amount of debris they need to hold can make the decision much easier.

How Do Solids Load and Cleaning Frequency Affect the Choice?

The two questions you should be asking are how much material the strainer needs to catch and how often you’re prepared to open it for cleaning.

If you expect relatively little debris and the screen only requires occasional attention, it makes sense to go with a Y-type. It makes little sense to install a larger collection chamber if the process rarely sends much solid material through the line.

The calculation changes with more debris, as captured particles gradually reduce the available open area of the screen. As the screen becomes blocked, differential pressure across the strainer increases. Ultimately, you’ll have to clean it to restore acceptable flow.

Basket strainers typically have greater dirt-holding capacity and straining area than Y-strainers. Due to this, debris gets more room to accumulate before enough of the element is blocked to warrant cleaning. This makes a basket design useful for processes with greater solids accumulation or where extending the time between cleanings is important.

T-type strainers should not automatically be treated as the middle choice for debris load. Their capacity depends on the particular body and element design. Check the available straining area and expected debris load rather than assuming a T shape tells you how much material it can hold.

For corrosive chemical service, you then need to match the wetted materials to the process. This is where a corrosion resistant strainer with a fluoropolymer lining may be required.

For example, YOUFUMI’s lined basket strainer is available in DN25–DN250 with PFA or FEP lining, different mesh options, and an available drain valve.

에이 PFA lined strainer can therefore combine the required basket geometry with a liner selected for corrosive media.

Choosing the body and lining still leaves one detail that determines which particles the strainer actually stops.

라이닝 파이프 솔루션

• 고급 안감 제작 방법
• 고밀도 건축
• 탁월한 투과 저항성
• 신뢰할 수 있는 진공 성능
• 원하는 길이로 제작 가능합니다 (요청 시)

제품 상세 정보 보기

What Happens If the Strainer Screen Openings Are Too Large?

Rather than going for the finest screen available, the goal should be to choose one that stops particles large enough to harm downstream equipment without unnecessarily restricting the process.

If the openings are too large, particles that should have been captured can pass straight through. They can then reach valve seats, pumps, nozzles, and other equipment that the strainer was installed to protect. It can appear that the strainer is working properly despite damaging debris making its way downstream.

Choosing a screen that is too fine comes with its own set of problems. Smaller openings increase flow resistance and capture particles that the downstream equipment might be able to tolerate. The element can also become blocked sooner, leading to increased differential pressure and shorter intervals between cleaning.

This is why “oversized mesh” can be misleading. Mesh numbers describe the number of openings over a given distance, so a higher mesh number generally means smaller openings. Saying “screen openings that are too large” makes the actual problem much clearer.

염산 밸브 또는 PTFE lined strainer, select the screen opening according to the maximum particle size the downstream equipment can safely tolerate.

Then check the expected debris load, cleaning frequency, maintenance clearance, pipe orientation, and chemical compatibility. Those conditions tell you whether the Y-type, T-type, or basket design is the best option for your line.