How to change desired flow rate of the nozzle

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Discussion Overview

The discussion revolves around the manipulation of flow rates in a system with multiple nozzles connected to a high-pressure pump. Participants explore the feasibility of adjusting the flow rate of a single nozzle using a pressure regulator valve, while also considering the implications of flow rate changes on bead estimates in different nozzle configurations.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the possibility of manually changing the flow rate of a single nozzle using a pressure regulator valve positioned behind that nozzle.
  • Another participant suggests that while it may be possible to reduce the flow rate with a valve, increasing it would be challenging.
  • A participant references a diagram to clarify the system setup and requests further comments based on that visual aid.
  • Another contribution discusses how stream rate directly affects bead estimates, providing examples of different flow rates and their impact on bead size for various nozzle types.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of adjusting flow rates, particularly regarding the ability to increase flow. The discussion includes multiple perspectives on the relationship between flow rates and bead estimates, indicating a lack of consensus on the best approach.

Contextual Notes

Participants have not fully defined the assumptions regarding the system's configuration or the specific effects of pressure changes on flow rates. The discussion also lacks resolution on the mathematical implications of flow adjustments.

iceberk
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Hello,

We have a system with a 70 bar pump and 9 nozzles connected to the pump lines. Total flow rate is 2 l/m. Is there a way to change only one nozzle flow rate manually, with a pressure regulator valf just behind that nozzle?

Thank you.
 
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Hello icy, :welcome:

I suppose 'behind' is relative. With a valve between the pump and the nozzle you should be able to reduce the flow rate. Increasing it would be rather impossible :smile:
 
Hello BvU,

You may see the attached file. It is a simple diagram to see what we need. Can you make a new comment according to the file?

Thank you.
 

Attachments

BvU's existing comment, as stated, still applies.
 
Stream rate directly affects bead estimate. An expansion in stream rate will build the bead measure; comparatively, an abatement in stream rate will diminish bead estimate.

Case: A 150 gpm empty cone spout at 10 psi has a bigger bead than a 100 gpm empty cone at 10 psi. Likewise, a 50 gpm full cone spout at 7 psi has a littler bead estimate than a 120 gpm full cone spout at the same weight.
 

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