[플랜트교육] Reducer Type (Concentric VS Eccentric) 큰 차이점~!!!, 실전꿀팁 Flow Direction, Top Flat, Bottom Flat

When are Eccentric and Concentric Reducers Used
Concentric reducers are used where the pipework is vertically installed and at the discharge side of pumps.
Eccentric reducers are more often used when the pipework lays on a pipe rack. Because of the flat side, aligning and securely mounting the pipes to the rack is easier. Those reducers also come in handy where there is a pump installed in liquid transporting systems. To avoid cavitation, the pipework is connected to the pump via an eccentric reducer that has its flat side facing up. This prevents the forming of bubbles and limits the chance of damaging the propellers inside the pump because of the cavitation phenomenon.
In ducting, we are often transporting heated or cold air and the cavitation phenomenon is not present. Therefore in this industry concentric reducers are used the most, with all of the concentric reducer dimensions.
How are Reducers Made
Concentric reducers used in ducting and ventilation systems are most commonly made from galvanised steel.
Those fittings can also be made out of stainless steel - 304, 316 and 316L. This makes them resistant to corrosion and they can handle weather conditions well. Also, this allows them to be used for transporting corrosive materials like water, steam and air.
The inner and outer surfaces of reducers used in plumbing are well polished with high-grade materials in order to meet the requirements for food, pharmaceutical and other industries.
Installing Eccentric and Concentric Reducers
There are various different ways to install reducers. Which way you choose will vary on the duct work you are changing the size of and what is travelling through the ducting.
Duct sealant
Self-drill screws
Duct tape
via hose clamps;
welding;
threaded.
Much like with the installation of spiral ducting which we covered in one of our earlier blog posts, standard galvanised steel concentric reducers have male spigots which will slip inside spiral duct. A female connection piece will be required if you are joining two male end fittings. Reducers can be fixed using duct sealant, self-drilling screws and/or duct tape.
When using flexible ducting, an often used method of fixing those fittings is using hose clamps, often known as Jubilee clips. These accessories provide a strong grip and firm connection when tightened well around the rigid reducer.
If you are welding reducers in place, you need to make sure you have removed any oils and other contaminants from all surfaces to get a strong weld. Use a cloth with some alcohol to rub all pollutants off the reducer and the pipe.
Threaded reducers, obviously have threaded ends and screw fixed to the pipes. These types of reducers are most commonly used in the plumbing industry and require the pipes to be threaded as well. The perk of this type of connection is that it is flexible, meaning you can shift the angle where the pipe is going when using an eccentric reducer.
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[@user-jaelee]

상반기 플랜트 기계설계를 준비하는 취준생입니다. 선생님의 양질의 자료 정말 감사하게 시청하고있습니다. 다시 한 번 감사드립니다!

[@plant_kim_CM]

채널에 관심 가져주셔서 고맙습니다. 나눔은 함께 살아가는 세상을 더욱 아름답게 만듭니다. 주변 지인분들과 함께 공유해서 보시면 더욱 좋습니다. 감사합니다.

[@홍영택-u1i]

저도 epc로 가고 싶네요. 멋도모르고 어떻게어떻게 시작한 배관일. 그것도 5년이 넘으니, 또다른 도전이 마려워지더군요 ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ

[@망곰이-y8e]

조선배관물류쪽에 일하는데 많은 도움됩니다. 선급 LR BV DNV GL ABS 등 차이점도 설명해주세요.

[@욱준헌0319]

오 좋아요
이런 이유가 있었네요...
어느덧, 구독자 천명이 넘었네요^^

[@plant_kim_CM]

채널에 관심 가져주셔서 고맙습니다. 나눔은 함께 살아가는 세상을 더욱 아름답게 만듭니다. 주변 지인분들과 함께 공유해서 보시면 더욱 좋습니다. 감사합니다.

[@공감-c9v]

con 레듀사200*150 수직 방향 설치시
방향은 상관이 없나요?
150을 위로 가게 해야 맞지 않나 싶은데...
잘 보고 갑니다

[@plant_kim_CM]

좋은 댓글 고맙습니다.
concentric reducer는 수직배관에 일반적으로 사용되며 설치 시 flow direction 에 따라 달라지므로 이를 고려해야 합니다. 감사합니다.

[@홍영택-u1i]

동료들과 채널 공유하라고 하지만, 대부분의 사람들은 깊이 알고싶어 하지도 않고, 되려 아는척 하냐고, 바쁜데 토달지 말라고 화를 냅니다.그게 현실이에요.
공부 하고싶은 놈들은, 얘기 안해줘도 이미 유튜브로 이채널 저채널 돌려보고, 구글 찾아보고,이렇게저렇게 찾아서 요리조리 다 배웁니다.
지들이 만지는 볼트 재질이 뭔지. 열처리기호가 뭔지 알고싶지도 않고, 그냥 어물쩡 그런거몰라도되 이지ㄹ ㅋㅋㅋㅋㅋㅋㅋㅋ
정보의 바다에서 고급 스마트폰의 가지면 뭐하나.........맨날 야동 아니면, 게임, 2분짜리 쓰레기 영상이나 쳐보고 있을걸.돼지한테 다이아 던져주면?! ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ

[@홍영택-u1i]

가입비 받으세요. 단돈1만원이라도 받아야지..........세상에 공짜가 어디있나? 비싸면 비쌀수록 좋지롱 ㅋㅋㅋㅋㅋㅋㅋ