why discharge valve is closed in centrifugal pump|discharge valve closed when starting pump : advice
Decanter centrifuge is the 4th solids control equipment in whole drilling mud system. It is used to process drilling mud discharged from desilter cones or mud cleaner. . Features Of AIPU Decanter Centrifuge. 1. Bowl Cylindrical and the Conical section made of Duplex Stainless Steel 2205 by centrifugal casting. . Feeding Pump Power (KW) 4 .
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Page 1 Installation, Operation & Maintenance Manual CENTRIFUGE UL Approved Worldwide Headquarters P.O. Box 42842 Houston, Texas 77242-2842 Tel: 281-561-1300 Fax: 281-561-1441 www.miswaco.com E-Mail: [email protected] Manual Part #: 90-90-060 Rev. C.; Page 2 DISCLAIMER Recommendations made by M-I SWACO are advisory only. M-I SWACO shall .
Centrifugal pumps are widely used in various industries for the transfer of fluids. One common practice in operating centrifugal pumps is to start the pump with the discharge valve closed. This may seem counterintuitive to some, but there are valid reasons behind this practice.
>If you start the pump discharge valve closed, it means no discharge head minimum resistance to the pump and minimum current drawn. Even though current taken during startup is more than normal, by closing discharge valve you can avoid extra load on the pump. >If you have a
Centrifugal Pump Discharge Valve Closed
When a centrifugal pump is started with the discharge valve closed, it reduces the initial power demand on the pump motor. This is because when the discharge valve is closed, there is no flow of fluid through the pump, which means less resistance for the pump to overcome. As a result, the pump motor does not have to work as hard to start the pump.
Pump Discharge Valve Closed
Another reason for starting the pump with the discharge valve closed is to prevent damage to the pump. When a centrifugal pump is started with the discharge valve open, it can cause a surge of fluid through the pump. This sudden surge of fluid can create water hammer, which can damage the pump impeller, casing, and other components.
Discharge Valve Closed When Starting Pump
By keeping the discharge valve closed when starting the pump, it allows the pump to gradually build up pressure within the system. This gradual increase in pressure helps to prevent water hammer and ensures a smooth start-up of the pump. Once the pump is up and running smoothly, the discharge valve can be slowly opened to allow the fluid to flow through the system.
By starting the pump with the discharge valve closed the power demand made by the pump on the pump motor is kept to a very minimum. After the pump has started and the …
For mud process, usually we request agitator rotate at 60~70 rpm, thus we'll find proper gearbox with certain reduction ratio. (Of course, the rated speed was calculated well prior to model .
why discharge valve is closed in centrifugal pump|discharge valve closed when starting pump