We are planning to install a pump with a three-inch discharge nozzle to an eight-inch process line. The discharge nozzle, however, will face high stress levels, given the polymer pellet slurry, which has a concentration of 33%, temperatures between 80 and 95 degrees Celsius and pressures of 7 kg/cm2g. To accommodate this, a discharge piping loop has been proposed, which is unconventional for slurry. How can we reduce the stress? Will a flexible pipe piece work?
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Veerasamy Venkatesan Forum Moderator 13 Posts
Re: Reducing stress using looped piping2 September 2008 at 1:29pm
This questions leaves us with too many questions.
- Why was the line designed as eight inches?
- What is the required flow rate?
- Why does the pump only have a three-inch discharge if there is a reasonable velocity in the eight-inch discharge?
- Why is there high stress on the discharge nozzle of the pump?
- Why will the proposed loop eliminate that stress rather than add to it?