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Engineering
Mechanical Engineering
PD pump (Rotary lobe pump) -- loud noise
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[QUOTE="Theerapat, post: 6043443, member: 649777"] Hello, I have a problem with the rotary lobe pump, it causes a very loud noise when running. The pump specs are as follows: Liquid: Syrup (The liquid is in the 15,000 liters tank.) Viscosity: 2200 cPs Temp: Ambient Flowrate: 15 m3/hr Discharge pressure: less than 2 bar (open ended pipe) Inlet pressure: 2.5-3 bar Pump running speed: 350 rpm Size: 65 mm [IMG]https://imgur.com/a/mpnmySw[/IMG] [URL]https://imgur.com/a/mpnmySw[/URL] I am quite sure that the problem is the insufficient liquid at suction side but I don't understand why. The pressure at suction side is very high, the suction pipe has the same size as the pump inlet. The discharge pressure is very low. Do you guys have any comments for this application? Theerapat S. [/QUOTE]
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Mechanical Engineering
PD pump (Rotary lobe pump) -- loud noise
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