答﹕
1. End Suction (Horizontal)
好處﹕Low initial cost, few moving parts, space saving
壞處﹕壞咗幾乎冇得拆,要成個掉;Max. flow較Horizontal Split Casing 細
用途﹕消防、泳池
參考﹕https://www.youtube.com/watch?v=kECv74z3KZE
2. Horizontal Split Casing (Horizontal)
好處﹕比起End Suction 好拆,個impeller換得 (留意出水方向同End Suction唔同);Max. Flow 較End Suction 大;
壞處﹕較嘥位,較重,initial cost 相對高
用途﹕冷氣
參考﹕https://www.youtube.com/watch?v=eO577YqMpBw
3. Vertical In-line (Vertical)
好處﹕容易配合有限空間,相對可高溫運作(Radial-split case design, even thermal expansion),如果NPSHR唔夠的話相對容易降低成組嘢增加返個NPSHA (Horizonal Pump唔容易咁做)
壞處﹕相對難安裝及維修
用途﹕冷氣、熱水系統,消防Jockey Pump
參考﹕https://www.youtube.com/watch?v=UV5DakVpCI0
4. Centrifugal Multi-Stage (Vertical & Horizontal)
特點﹕一抽Impeller串聯, High pressure, flow rate unchange. 唔加大impleller size係因為唔經濟。
用途﹕Upfeed / Booster System
參考﹕https://www.youtube.com/watch?v=6iENU-Pp3Q0
(鳴謝﹕K)
🙏👍
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