Re: discharge valve of pumps

From: <Shashank.Goel@ril.com>
Date: Mon Oct 17 2005 - 23:16:00 EDT

Vijayan

Depends on type of pump. Centrifugal pumps are typically started with discharge valve shut to ensure that the motor does not overload at the start-up. PD pumps are started with discharge full open to protect the pumping system against blocked discharge.

Hope it helps.

Regards
Shashank Goel

              VIJAYAN PULIKKATH
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From: Vijayan Pulikkath
Location: Consultants, Chennai, India
Asst Design Engr

1. Which is the natural position for a discharge valve of a pump when the pump is started?

    valve open
    valve closed
2) Reason?

3) Is it normal to have an interlock for pump start/stop with the discharge valve when they are operating in parallel and on auto standby? Is it essential?

Vijayan

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