Hydraulic Hose Inner Diameter Selection Flow Velocity Reference Chart

Product Introduction

This is a professional hydraulic hose inner diameter selection nomogram (flow-velocity sizing chart) from DME&JDE, designed to help engineers, purchasers and maintenance personnel quickly and accurately select the correct inner diameter of hydraulic hoses.
By connecting the flow rate (L/min/gal/min) on the left scale and the fluid velocity (m/s/ft/s) on the right scale, the intersection of the straight line with the middle hose I.D. scale directly gives the optimal inner diameter. It clearly defines the maximum recommended velocity limits for pressure lines, return lines and high-pressure lines, ensuring that the hydraulic system operates efficiently, avoids pressure loss, cavitation and hose damage, and is suitable for all types of hydraulic system design, maintenance and hose replacement scenarios.

Product Advantages

Quick & Accurate Sizing: No complex calculations required, just connect two points on the scale to get the optimal hose inner diameter in seconds, improving work efficiency.
Clear Velocity Standards: Clearly marks the maximum recommended velocity limits for pressure lines, return lines and high-pressure lines, avoiding system failures caused by improper velocity.
Dual Unit Compatibility: Supports both metric (L/min, m/s, mm) and imperial (gal/min, ft/s, Dash) units, meeting the needs of global customers.
Professional Hydraulic System Design: Tailored for hydraulic oil, effectively prevents pressure loss, cavitation, overheating and hose damage, extending the service life of the system.
Easy to Use & Understand: Intuitive nomogram design, easy to master for engineers, purchasers and on-site maintenance personnel, reducing selection errors.

Company Introduction

DME&JDE is committed to design, manufacture and support fluid transmission solutions. We insist on application-orientation to solve all problems during transmission. Advanced Production technology, wide ranges of flexible hoses, fluid connectors and rich export and projects experience guarantee our capacity to design right OEM fluid solutions for all transmission difficulty.
DME&JDE continuously expands our product ranges and value-added service and improve technologies and equipment to supply products outperform industry standards and exceed customers' demanding expectations.
DME was established in 1993. Fluid connectors are manufactured by standard automation equipment and in accordance with SAE, ISO, BSI, and DIN standards, with fittings available in JIC, BSP, ORFS, and heavy-duty bite type.
DME is the main supplier to major vendors in Europe and America.
JDE, founded in 2009, is dedicated to hydraulic hoses, industrial hoses, and other industrial hose manufacturing.
JDE adopts German, American, and Italian advanced equipment. All product lines meet or exceed SAE J517, DIN/EN853, EN854, EN857, ISO, GB, and other industry standard requirements.
DME&JDE FLUID CO., LTD. was established in 2021. The investors are DME and JDE. We work with the concept of "ONE STOP SOLUTION": Assembly, Hose Crimping, Hose Cutting, Hose Pressure Testing, Hose Skiving, and Assembly Parts.
Our aim is to design hydraulic fluid solutions, providing long-lasting and stable support for all industries, and ensuring that our dealers and end users are free from hydraulic-related accidents, unexpected shutdowns, and significantly reduce procurement costs, quality assurance costs, and other associated costs.

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About DME&JDE Group

Who We Are

Our group unites three specialized divisions under one brand:

• • DME (Fluid Connection Division):  The core supplier of standard fluid connectors to major vendors in Europe and America, with roots tracing back to the 1990s.

  • JDE (Fluid Hose Division):  A specialist in hydraulic hoses, industrial hoses, and hose manufacturing, founded in 2009.

  • DME&JDE Fluid OEM Solution Division:  Established in 2021, delivering one-stop fluid OEM solutions from assembly and crimping to testing and skiving.

Our Strengths & Capabilities