Hose Ferrule

Hose Ferrule Basics

1.1 Definition and Function of Hose Ferrule

A hose ferrule (Ferrule) is a metal ring-shaped part that is mainly used to:
Secure the connection between hydraulic hoses and fittings
Provide a reliable sealing performance
Enhance the tensile strength of the connection
Prevent the hose from disconnecting under high pressure

“The ferrule may be small, but it’s the ‘safety guard’ of the hydraulic system.” –Parker Hannifin Technical Brochure

1.2 Common types of Hose Ferrule

Classification by structure:

Type	Features	Scenarios
Single layer collar	Simple construction, low cost	Low pressure systems (<3000PSI)
Double layer collar	Reinforced design for greater durability	High pressure systems (>3000PSI)
Reusable collar	Threaded and removable	Devices that require frequent maintenance

Hose Ferrule Classification by material:
Carbon steel ferrule: economical, need surface treatment to prevent rust
Stainless steel ferrule: corrosion-resistant, suitable for harsh environments
Brass ferrule: Good electrical conductivity, used in special occasions

Hose Ferrule Guide to Proper Selection

2.1 Key Parameters for Size Selection

There are three core dimensions that must be considered when selecting a ferrule:
1. Hose Inside Diameter (ID): Determine the flow rate
2. Hose OD (Outside Diameter): Determine the inner diameter of the ferrule
3. Fitting type: Match with different standards such as JIC, NPT, etc.

Practical tip: When using digital calipers to measure, take 3 measurements at different positions of the hose and take the average value to ensure the accuracy.

2.2 Hose Ferrule Industry Standards Comparison Table

Standard System SAE, Typical Code J516, Commonly Used Area: America.
Standard system DIN, typical code 2353, common area: Europe.
Standard system GB/T, typical code 3765, commonly used area: China.
Standard system JIS, Typical code B8363, Commonly used area: Japan.

Hose Ferrule Crimping Tool and Installation Guide

3.1 Necessary tools list

1. Hydraulic crimping machine: recommended Parker Hannifin PF series
2. Specialized cutter: to ensure a flat cut
3. Deburring tool: to deal with the cutting edge
4. Measuring tools: digital calipers (accuracy of 0.01mm)

3.2 Six-step standard installation process

1. Measuring mark: to mark the insertion depth on the hose
2. Cutting treatment: Use special tools to cut vertically
3. Cleaning preparation: Clean the contact surface with a lint-free cloth
4. Sleeve positioning: Ensure that the sleeve is aligned with the marking
5. Crimping operation:
Choose the right mold
Pressurize in stages (pre-pressure and then final pressure)
6. Quality check:
Visual inspection of no deformation
Measurement of the diameter of the crimped

Safety Warning: When crimping, the operator should wear protective eyewear, to avoid injuries caused by metal shavings.

3.3 Common Mistakes and How to Avoid Them

Incorrect Operation	Consequences	Correct Practice
Crimp with ordinary pliers	Poor sealing	Use a special crimper
Neglect cleaning procedure	Particle contamination	Strict cleaning procedure
Over crimp	Hose damage	Operate to standard pressure

Hydraulic Hose Ferrule Size Chart for Different Model Sizes

Hose Ferrule Price List for Different Model Sizes

Descriptive	Material	prices	Delivery time
00210-04 Carbon Steel No Skiving Hose Sleeve R1 R2 R3 R4 4SP 4SH 6SH 03310 00210 00400 Hydraulic Hose Crimping Fittings Ferrule	Carbon Steel	From 0.15 USD/piece	15-25 Days
00402-16 High Pressure Hose Ferrule Fittings Carbon Steel Zinc Plated Interlock Hydraulic Hose Ferrule	Carbon Steel	0.90-1.50 USD/piece	15-25 Days
00TF0 Hose Sleeves Hydraulic Ferrules Medium Pressure Sockets for PTFE Hose SAE 100 R4	Carbon Steel	0.50-10.99 USD/piece	15-25 Days
03310 Hydraulic Hose Crimping Ferrule Hose Ferrule Stainless Steel Hydraulic Hose Ferrule	Carbon Steel	0.35-3.5 USD/piece	15-25 Days
3/8″ 00TF0-06 Crimpes Hydraulic Fitting Connector Stainless Steel Ferrule for PTFE Hose	Carbon Steel	0.50-10.99USD/piece	15-25 Days
Ferrule-Ferrule for 4SH/R12/32 Hose-Parker Series ASK PG5/00401	Stainless Steel	0.25-11.99 USD/piece	15-25 Days

Hose Ferrule Troubleshooting and Resolution

4.1 Hose Ferrule Leakage Troubleshooting Chart

Hose Ferrule Oil Seepage from Fittings
Possible Causes:
1. Mismatch of ferrule sizes (40%)
2. Inadequate crimp (30%)
3. Hose deterioration (20%)
4. Miscellaneous (10%)

Solutions:
1. Remeasure and replace with appropriate ferrule 2. Replace with a suitable collar
2. Check crimping force with a torque wrench
3. Replace the complete hose assembly

4.2 Hose Ferrule Rust Treatment Plan

Preventive measures:
Use stainless steel collars in wet environments
Apply rust inhibiting grease regularly
Carry out a complete inspection once a year

Emergency treatment:
1. Minor corrosion: Clean with a wire brush and apply rust inhibiting paint
2. Severe corrosion: Replace the complete connection immediately

Conclusion:

With the systematic introduction in this article, you have acquired a complete body of knowledge from the basics to purchasing decisions. In practical application, it is recommended to set up a standardized file for the use of the collar to record each replacement and maintenance, which will greatly improve the reliability and safety of the system.

Users’ most concerned Hose Ferrule questions (detailed answers)

How to recognize the size of Hose Ferrule?

The ferrule size usually corresponds to the hose size, and the following parameters need to be measured:
Hose Inside Diameter (ID): e.g. 3/8″, 1/2.
Hose Outside Diameter (OD): affects the choice of ferrule ID (e.g. 1/2″ hose OD is about 0.75″).
Sleeve Type: Single (light duty) or double (heavy duty, high pressure resistant).

Cross Reference Example:

Hose Size (ID)	Sleeve ID (mm)	Applicable Pressure Rating
1/4″	6-7mm	≤3000 PSI
3/8 “	9-10mm	≤4000 PSI
1/2″	12-13mm	≤6000 PSI

Can the ferrule be reused?

Permanent collar: not reusable after crimping (destructive installation).
Reusable collars: e.g. Parker 71/73 series, with threads that can be removed, but the sealing needs to be checked regularly.

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