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hydraulic hoses fittings & adapters

hydraulic hoses fittings & adapters
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hydraulic hoses fittings & adapters

Product catalog summary
Overview
This document provides comprehensive technical information on hydraulic hoses, fittings, and adapters, focusing on specifications, safety guidelines, and product innovations by ALFAGOMMA. It covers hose types, fitting standards, adapter specifications, and safety precautions.
Hose Specifications
The document details various hydraulic hoses, including internal and external diameters, maximum working pressures, and critical parameters. It highlights ALFAGOMMA's top coating, offering superior corrosion resistance, tested according to ASTM B117-03 and UNI ISO 9927 standards.
Fittings and Adapters
It discusses standard and interlock fittings, along with JIC 37°, ORFS, BSP, and DIN 24° adapters, emphasizing the importance of using ALFAGOMMA fittings for reliability and safety.
Product Innovations
ALFAGOMMA introduces new hose ranges, including extra flexible bio oil-resistant hoses and halogen-free options, offering enhanced flexibility, abrasion resistance, and environmental friendliness.
Safety and Maintenance
The document stresses proper selection, installation, and maintenance of hose assemblies to prevent failures and ensure safety, providing guidelines on flow capacity, pressure limits, and bend radius.
Testing and Quality Assurance
ALFAGOMMA conducts extensive testing to meet international standards such as SAE, ISO, DIN, and JIS, ensuring product reliability and durability.
Important User Notes
Users are advised to follow maintenance practices, avoid exceeding pressure limits, and ensure proper training for personnel handling hose assemblies. Safety precautions for hydraulic fluid under pressure are also provided.
Conclusion
ALFAGOMMA is a global leader in hydraulic hose and coupling components, committed to quality, innovation, and customer satisfaction.
Specifications and Guidelines
  • Flow Line Sizes: Correct calculation is crucial to avoid high fluid velocity, pressure drops, and heat buildup.
  • Pressure: Hose selection must match or exceed system pressure.
  • Temperature: Ensure operating temperatures do not exceed hose limitations.
  • Fluid Compatibility: Hose materials must be compatible with the fluid used.
  • Permeation: Consider potential hazards, especially with gases and refrigerants.
  • Routing: Optimize hose routing to minimize flexing and contact with moving parts.
  • Environment: Protect hoses from UV light, heat, and chemicals.
  • Mechanical Loads: Consider mechanical loads like flexing and vibration.
  • Abrasion: Protect hoses from excessive abrasion.
  • Proper End Fitting: Ensure compatibility between hose and coupling.
  • Length: Consider motion absorption and pressure-induced length changes.
  • Specifications and Standards: Review applicable specifications and recommendations.
  • Hose Cleanliness: Ensure adequate cleanliness levels.
  • Welding and Brazing: Avoid heating plated parts above 232°C.
  • Electrical Conductivity: Select hoses based on conductivity requirements.
Installation
  • Pre-Installation Inspection: Inspect hoses for defects.
  • Hose and Fitting Assembly: Follow manufacturer instructions.
  • Related Accessories: Use approved machines for crimping or swaging.
  • Parts: Use correct mating parts for hose fittings.
  • Reusable/Permanent: Do not reuse blown or pulled-off couplings.
  • Minimum Bend Radius: Avoid installing hoses below the minimum bend radius.
  • Twist Angle and Orientation: Ensure installations do not produce twisting.
  • Securement: Restrain hoses to prevent damage.
  • Proper Connection of Ports: Ensure correct port connections.
  • External Damage: Correct potential damage sources.
  • System Checkout: Eliminate air entrapment and check for leaks.
Maintenance Instructions
  • Visual Inspection Hose/Fitting: Replace hoses with visible damage.
  • Visual Inspection All Other: Tighten, repair, or replace damaged components.
  • Functional Test: Test the system at maximum pressure for leaks.
  • Replacement Intervals: Consider replacement intervals based on service life.
Hydraulic Hose Length Calculations
Formulas for calculating the overall length of a hydraulic hose assembly are provided, with recommendations for right angle adapters to avoid small bend radii.
Fitting Identification
Dash numbers are used for sizing components in fluid piping systems, with examples for various coupling systems.
Thread Types and Specifications
Detailed information on various thread types used in piping and hydraulic systems is provided, including BSPT, BSPP, French Metric GAZ, German DIN, Japanese JIS, and Komatsu connections.
Torque Specifications
Recommended torque values for various fittings and adapters are provided, with the FFFT method suggested for achieving correct torque.
Pressure Conversion
Conversion tables for pressure measurements in different units are included, facilitating easy conversion for various applications.
Fittings Guidelines
Guidelines for selecting appropriate ALFAGOMMA adapters based on fluid system operating parameters are outlined.
Adapter Types and Features
Various adapter types are described, detailing their main features, applications, and assembly procedures.
Assembly Instructions
Instructions for assembling different types of adapters are provided, highlighting the importance of proper alignment, lubrication, and torque application.
Port Specifications
Specifications for Metric, SAE UNF, BSPP, and Metric Ports are detailed, ensuring compatibility and performance in hydraulic systems.
Hose Types
Various hose types are listed, each with specific applications and operational temperature ranges.
Limited Warranty (North American Market only)
Products are warranted to be free from defects in material and workmanship at the time of shipment, with claims to be made within six months. The warranty excludes products subjected to abuse, misuse, improper installation, or unauthorized modifications.
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Catalog excerpts

hydraulic hoses fittings & adapters-1

HYDRAULIC HOSE, FITTINGS & ADAPTERS

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CHART SYMBOLS Internal diameter Minimum bend radius Outside diameter Wall thickness Maximum working pressure Minimum burst pressure

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ALFAGOMMA TOP COATING OVER 10 TIMES HIGHER THAN STANDARD ■ TESTED IN ACCORDANCE WITH ASTM B117-03 AND UNI ISO 9927 STANDARDS ■ OVER 500 HOURS CORROSION PREVENTION IN SALT SPRAY FOG TO WHITE RUST ■ MORE THAN 1000 HOURS CORROSION RESISTANCE TO RED RUST

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NEW EXTRA FLEXIBLE BIO OIL RESISTANT HOSE RANGE n specially designed for bio oil full compatibility n extreme flexibility: up to 50% better bend radius compared to sae 100R n minetuff cover for top abrasion & ozone resistance n msha-approved fire resistant cover

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HALOGEN FREE RANGE NEW 2SC HF HALOGEN FREE HOSE ENVIRONMENTAL FRIENDLY Alfagomma has extended the HF range adding 2SC, available from June. The item code doesn’t change, but the new hose can be recognized by the logo HF in the branding text. The swaging parameters of 2SC-HF remain the same of the standard 2SC. ALSO AVAILABLE IN HF RANGE: www.alfagomma.com Dimensions shown may be changed without prior notice

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■ EXCELLENT ABRASION RESISTANCE (10 TIMES HIGHER THAN EN-ISO 6945 ■ HIGH OZONE RESISTANCE (10 TIMES MORE THAN THE STANDARD) ■ MSHA APPROVED COVER ■ ALTERNATIVE TO PROTECTIVE SLEEVE IN APPLICATIONS REQUIRING ABRASION RESISTANCE

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Appendix SETTING NEW STANDARD ALFAGOMMA cares for the environment and for your equipment among ALFAGOMMA’s newest products are ALFATECH 4000, 5000, 6000 spiral hose, low temperature, Temp Tech, MineTuff, SuperTuff hose and a complete coupling line (two pieces and precrimped ALFACRIMP systems). They join the extensive range of ALFAGOMMA hose, the high pressure hydraulic components that have set the standard for reliability and durability. DESIGN Throughout the world ALFAGOMMA has build up a name synonymous with quality, a reputation based on first class product, a commitment to research and development...

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Appendix AND... 1. Always position a shield between you and any pressurised hydraulic lines when working next to them... or shut the pressure off. 2. Wear safety glasses. 3. Do not use your hands to check for leaks. Do not touch a pressurised hydraulic hose assembly with any part of your body, if fluid punctures the skin, even if no pain is felt, a serious emergency exists. Obtain medical assistance immediately. Failure to do so can result in loss of the injured body part or death. 4. Stay out of hazardous areas while testing hose assemblies under pressure. Use proper safety protection. 5. If...

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Type Approvals REFERENCE SPECIFICATIONS SAE - DNV - EN - DIN - CERCHAR - Society of Automotive Engineers Det Norske Veritas European Norm Deutsche Institute Normen Centre d’Etudes et Recherches Des Charbonnages de France U.S. Mine Safety and Health Administration Landesobergamt Nordrhein - Westfallen Australian Standard Bureau Veritas Germanischer Lloyd International organization for Standardization The listing below are intended only as guides in identifying which ALFAGOMMA hoses comply with requirements of various agencies. Hose Flexor 1TE/R6 HF Flexor 2TE HF Flexor 3TE/R3 HF Flexor 4 Flexor...

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Hose Guidelines SAFETY GUIDE AND BASIC FACTORS FOR THE SELECTION, INSTALLATION AND MAINTENANCE OF HOSE AND HOSE ASSEMBLIES Hydraulic hose (and hose assemblies) has a limited life dependent on service conditions to which is applied. Subjecting hose (and hose assemblies) to conditions more severe than the recommended limits significantly reduce service life. Exposure to combinations of recommended limits (i.e., continuous use at maximum rated working pressure, maximum recommended operating temperature and minimum bend radius) will also reduce service life. Laminar flow - In laminar flow, the individual...

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User Guide TECHNICAL INFORMATION – NORMOGRAM OF THE FLOW The normogram herewith is pivotal to help you find the hose diameter by knowing the liquid flow and speed. In order to find the correct diameter you should trace a line between the flow value (l/min) and the suggested speed (m/sec) according to the kind of delivery (pressure or return). The value touched by the line in the central column will indicate the hose ID (mm/inches) that must be used. dash sizes Recommended maximum velocity for suction lines Recommended maximum velocity for return lines Recommended maximum velocity for pressure...

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Hose Guidelines It is therefore important to calculate correctly the required flow line sizes. Undersized pressure lines results in high fluid velocity causing an excessive pressure drop, and heat built up, which impair overall system performance. Undersized suction lines can cause cavitation at the hydraulic pump inlet, affecting performance, shortening pump life, and creating excessive noise levels. The flow capacity normogram on page (12) is an aid to determine the correct hose internal diameter size, desired flow rate and recommended velocity. By the use of any two known factors, the third...

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Hose Guidelines Do not use any ALFAGOMMA hose or fitting for any application requiring non-conductive hose, including but not limited to applications near high voltage electric lines, unless the application is expressly approved in the ALFAGOMMA technical publication for the product, the SAFETY GUIDE hose is both orange in colour and marked “non-conductive”, and the manufacturer of the equipment on which the hose is to be used specifically approves the particular ALFAGOMMA hose and fitting for such use. ALFAGOMMA does not supply any hose or fittings for conveying paint in airless paint spraying...

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Hose Guidelines CORRECT ASSEMBLY INSTALLATION Satisfactory performance and appearance depend upon proper hose installation. Excessive length destroys the trim appearance of an installation and adds unnecessarily to the cost of the equipment. Hose assemblies of insufficient length to permit adequate flexing, expansion or contraction will cause poor power transmission and shorten the life of the hose. The diagrams below offer suggestions for proper hose installations to obtain the maximum in performance and economy. Adequate hose length is most important to distribute movement on flexing applications...

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