Complete Guide to Hose Size Calculation | Pressure Drop & Standards
30.9K views · 2026-01-27
Industrial Design
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This video explains how to select the correct hydraulic hose size for a hydraulic system.
It covers the engineering logic behind hydraulic hose sizing, including the relationship between flow rate, oil velocity, pressure drop, and Reynolds number. The video explains why hose size does not control system pressure or cylinder speed, and why correct hose sizing is still critical for efficiency, heat control, and component life.
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The video also explains how to apply STAMP for hose selection and how to choose hoses from manufacturer catalogues by understanding pressure rating, hose construction, and standards. Differences between SAE construction-based hoses and ISO constant-pressure hoses are also discussed, with practical examples.
This video is intended for mechanical engineers, hydraulic system designers, and anyone involved in hydraulic machine design.
▀ ▀ ▀
Hydraulic hose catalogue:
https://drive.google.com/drive/folders/1x9S_JZHWN6tYmT9Ib-H0FJuxfB-LLkOn?usp=sharing
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Chapters:
00:00 What we will learn
01:23 Hydraulic hose pressure rating
04:16 STAMP- Hose selection method
05:31 Hydraulic hose Dash size
06:12 Hydraulic hose sizing formula
09:29 Recommended oil velocity for Hydraulic hose
09:56 Pressure drops in hydraulic hose
11:04 Laminar and turbulent flow in hose
12:46 Reynold’s number concept
14:04 Steps of Hydraulic hose sizing calculation
14:54 Pressure line hose sizing calculation
15:59 Reynold’s number calculation
17:04 Important of hydraulic hose sizing
18:21 Hose selection from catalogue
20:18 SAE standard of hydraulic hose
21:01 Type of hose’s reinforcement
23:16 SAE 100R series hose
25:26 ISO standard of hydraulic hose
26:69 Return line hose sizing calculation
29:36 Brilliant
▀ ▀ ▀
#hydraulicpress #hydraulic #hoses #brilliant
#mechanicaldesign #Machinedesign #Mechanical #Mechanicalengineering #mastermechanicaldesign
▀ ▀ ▀
This video explains how to select the correct hydraulic hose size for a hydraulic system.
It covers the engineering logic behind hydraulic hose sizing, including the relationship between flow rate, oil velocity, pressure drop, and Reynolds number. The video explains why hose size does not control system pressure or cylinder speed, and why correct hose sizing is still critical for efficiency, heat control, and component life.
▀ ▀ ▀
The video also explains how to apply STAMP for hose selection and how to choose hoses from manufacturer catalogues by understanding pressure rating, hose construction, and standards. Differences between SAE construction-based hoses and ISO constant-pressure hoses are also discussed, with practical examples.
This video is intended for mechanical engineers, hydraulic system designers, and anyone involved in hydraulic machine design.
▀ ▀ ▀
Hydraulic hose catalogue:
https://drive.google.com/drive/folders/1x9S_JZHWN6tYmT9Ib-H0FJuxfB-LLkOn?usp=sharing
▀ ▀ ▀
Chapters:
00:00 What we will learn
01:23 Hydraulic hose pressure rating
04:16 STAMP- Hose selection method
05:31 Hydraulic hose Dash size
06:12 Hydraulic hose sizing formula
09:29 Recommended oil velocity for Hydraulic hose
09:56 Pressure drops in hydraulic hose
11:04 Laminar and turbulent flow in hose
12:46 Reynold’s number concept
14:04 Steps of Hydraulic hose sizing calculation
14:54 Pressure line hose sizing calculation
15:59 Reynold’s number calculation
17:04 Important of hydraulic hose sizing
18:21 Hose selection from catalogue
20:18 SAE standard of hydraulic hose
21:01 Type of hose’s reinforcement
23:16 SAE 100R series hose
25:26 ISO standard of hydraulic hose
26:69 Return line hose sizing calculation
29:36 Brilliant
▀ ▀ ▀
#hydraulicpress #hydraulic #hoses #brilliant
#mechanicaldesign #Machinedesign #Mechanical #Mechanicalengineering #mastermechanicaldesign