Gents,
If you are pumping a liquid where there can be gas entrainment (like air in water) put the flat part of the eccentric reducer at the top so that the air flows unhindered into the pump. That prevents a pocket of gas developing at the high point of the reducer at the pump suction. If you are pumping a liquid that can have a small amount of a heavier liquid entrained, like water in oil, then place the flat part of the eccentric reducer at the bottom so that the heavy liquid can flow unhindered into the pump and not accumulate at the bottom of the reducer. AND DON'T COME BACK AND ASK ME WHAT TO DO IF THERE IS BOTH GAS AND A HEAVY LIQUID PRESENT. Cheers,
Gordon Reddek
Specialist Mechanical Engineer
Alcan Engineering, Level 3, 443 Queen St, Brisbane, Qld 4001, Australia.
Tel: +61 7 3328 6424
Fax: +61 7 3328 6990
Email: <a href="/group/PipingDesign/post?postID=8z_-4xrv9zELO_hMzz_UDPudCZeZm9UA6bPA2WFR_3c_0nG1IGvRhpxLgl0nAxyvLSMav_ZDWrkSg8wKk-ZoTAY">gordon.reddek@alcan.com</a>
Sajit Viswan <sviswan@tebodin.co.om>
29/06/2004 01:28 PM
Please respond to
<a href="/group/PipingDesign/post?postID=oMzqXGD2aAvxnK6JNzfKXpayDP0KCl_j9dvjKCm_cV1LYF3bfmbeC3m3CVZTcBzhNH66HRx8tRTd9xUWFjj6wCd6tQs">PipingDesign@yahoogroups.com</a>
To
<a href="/group/PipingDesign/post?postID=oMzqXGD2aAvxnK6JNzfKXpayDP0KCl_j9dvjKCm_cV1LYF3bfmbeC3m3CVZTcBzhNH66HRx8tRTd9xUWFjj6wCd6tQs">PipingDesign@yahoogroups.com</a>
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Subject
RE: [PipingDesign] hi
Paresh,
This is because the process guys think that they need to have the larger size to reduce the pressure drop in the line whereas the pump manufacturer thinks the smaller size is enough for the flow. Therefore we guys have to put in the reducer to match the 2.
I wonder what happens to the flow with ecc red in the suction. The pump manufacturer suggests a straight length of 7D u/s of the suction nozzle. The flat top ecc red is at the pump suction nozzle.
Suggest that you use a more appropriate subject for your mail.
Sajit
-----Original Message-----
From: Prasad Koshe [mailto:koshep@petrofac.co.ae]
Sent: Monday, June 28, 2004 4:50 PM
To: <a href="/group/PipingDesign/post?postID=oMzqXGD2aAvxnK6JNzfKXpayDP0KCl_j9dvjKCm_cV1LYF3bfmbeC3m3CVZTcBzhNH66HRx8tRTd9xUWFjj6wCd6tQs">PipingDesign@yahoogroups.com</a>
Subject: [PipingDesign] hi
Hi,
Can anyone tell me, Normally line size get reduced at pump suction and discharge nozzles. Why is it so?
Thanks
paresh,
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[Non-text portions of this message have been removed] Received on Tue Jun 29 00:20:00 2004
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