Water pressure question involving pipe, flexible hose and a filter

Click For Summary
SUMMARY

The discussion focuses on water pressure dynamics when transitioning from a 3/4 inch copper pipe to a 1/2 inch flexible braided hose, particularly through a filter designed for 3/4 inch pipes. It highlights that pressure drop occurs at constrictions and filters, which is influenced by flow rate. The need for precise measurements and specifications, including vertical changes in the system, is emphasized for accurate pressure calculations. Users are advised to consult engineering handbooks for quantitative analysis of pressure drops at various flow rates.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with pipe sizing and flow rates
  • Knowledge of filter specifications and their impact on pressure
  • Basic engineering concepts related to pressure drop calculations
NEXT STEPS
  • Research "fluid dynamics in piping systems" for foundational knowledge
  • Study "pressure drop calculations in filters" for quantitative analysis
  • Explore "pipe sizing and flow rate relationships" to optimize systems
  • Examine "engineering handbooks on fluid mechanics" for detailed methodologies
USEFUL FOR

Engineers, plumbers, and anyone involved in fluid system design or troubleshooting, particularly those dealing with pressure management in piping systems.

jkramer
Messages
1
Reaction score
0
TL;DR
water pressure issues
Summary: water pressure issues

what happens when you take water from a 3/4 inch pipe copper to 1/2 inch flexible braided hose through a filter for a 3/4 pipe back through a flexible braided hose 1/2 inch tube to 3/4 inch copper pipe?
 
Engineering news on Phys.org
Welcome to the PF. :smile:

Can you say more about your question? You are experiencing more water pressure drop than you expect in your system? Can you upload a sketch (use the "Attach Files" link below the edit window), and give us a rough idea of the pressure in each segment that you are seeing? Is there a vertical drop/climb associated with the system? What are the specs on the filter?
 
It depends on the rate of flow. Consider the extreme case in which we cap the far end of the last pipe so no water flows: the pressure will be the same everywhere if the piping is all horizontal (if not, the pressure will be higher at the low points).

If the flow is non-zero there will be a pressure drop across the filter and at each of the constrictions; these drops will increase as the flow rate increases.

If you need a quantitative answer (how much pressure drop at a given flow rate) you will have to spend some time with a engineering handbook and the filter specs.
 

Similar threads

  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 20 ·
Replies
20
Views
11K
  • · Replies 38 ·
2
Replies
38
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 15 ·
Replies
15
Views
4K
Replies
7
Views
1K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K