20411TX Metric Fitting for Hydraulic Lines​

Product Overview

The 20411TX Metric Fitting represents a precision-engineered solution for hydraulic line connections in industrial and mobile applications requiring reliable performance under demanding conditions. Designed to accommodate metric hydraulic systems, this fitting provides secure and leak-free connections in medium to high-pressure circuits where precision and durability are essential. Its thoughtful design incorporates features that simplify installation while ensuring long-term performance across a wide range of operating environments. The 20411TX fitting has earned a reputation for reliability in hydraulic systems worldwide, valued for its consistent performance and compatibility with international metric standards.

Product Features

Material & Corrosion Resistance

Constructed from high-grade carbon steel (1045 grade), the 20411TX Metric Fitting offers an optimal balance of strength and machinability for hydraulic line applications. The fitting features a triple-layer zinc-nickel plating with a clear chromate topcoat, providing exceptional corrosion resistance that exceeds industry standards. For applications requiring enhanced corrosion protection, an optional AISI 316 stainless steel version is available, offering superior resistance to chemical exposure and saltwater environments. Both versions undergo rigorous testing, including 96-hour salt spray testing, to ensure long-term durability in challenging conditions.

Pressure Performance & Design

Engineered for reliable performance in medium to high-pressure hydraulic systems, the 20411TX Fitting supports a maximum operating pressure of 5,000 PSI (276 bar) for standard carbon steel versions, with stainless steel variants maintaining this rating across a broader temperature range. The fitting features a metric parallel thread (M12 to M36) with an integrated O-ring groove that accepts a high-performance nitrile O-ring, creating a reliable seal that prevents leakage even under pressure fluctuations. Its compact design allows for installation in space-constrained environments without compromising flow capacity or pressure handling capabilities.

Installation & Compatibility

The 20411TX Metric Fitting incorporates a push-to-connect design that simplifies installation and reduces assembly time compared to traditional threaded fittings. It is compatible with SAE 100 R1, R2, R16, and R17 hydraulic hoses when used with appropriate crimp ferrules, providing versatility across different system configurations. The fitting's design includes a hexagonal body for secure wrench engagement during installation, ensuring proper torque application without damaging the fitting or hose assembly. This design feature minimizes the risk of installation errors that can lead to system failures.

Applications

Industrial Hydraulic Lines

In factory and industrial settings, the 20411TX Metric Fitting is widely used in hydraulic power units, machine tool hydraulic circuits, and automated production lines. Its reliable performance makes it suitable for precision hydraulic systems in automotive manufacturing, metal processing, and plastic injection molding equipment where consistent pressure control and leak-free operation are essential for maintaining production quality and efficiency.

Mobile Equipment Systems

The 20411TX Fitting finds extensive application in medium-duty mobile hydraulic systems, including utility vehicles, material handling equipment, and agricultural machinery. It is commonly used in hydraulic circuits for lift mechanisms, steering systems, and auxiliary equipment where it must withstand vibration, temperature variations, and occasional mechanical stress while maintaining reliable performance in field conditions.

Renewable Energy Infrastructure

With the growing demand for clean energy, the 20411TX Metric Fitting has become increasingly important in renewable energy applications, including hydraulic systems for wind turbine pitch control mechanisms and solar panel positioning systems. Its corrosion resistance and reliable performance ensure uninterrupted operation in remote locations with harsh environmental conditions, contributing to the efficiency and longevity of renewable energy installations.

FAQ

What metric standards does the 20411TX Fitting comply with?

The 20411TX Metric Fitting is designed and manufactured to comply with ISO 8434-1 standards, which specify dimensions and performance requirements for metric hydraulic tube fittings. This compliance ensures interchangeability with other ISO 8434-1 compatible components from different manufacturers, providing flexibility in system design and maintenance. The fitting's thread dimensions conform to ISO 261 metric thread specifications for broad compatibility with metric hydraulic components.

What is the temperature range for the 20411TX Fitting?

The 20411TX Metric Fitting maintains reliable performance across a temperature range of -40°C to 120°C (-40°F to 248°F) for standard carbon steel versions with nitrile O-rings. For applications requiring extended temperature capabilities, versions with fluorocarbon (Viton®) O-rings are available, extending the upper temperature limit to 200°C (392°F). It's important to note that pressure ratings may require derating at extreme temperature extremes, particularly above 100°C (212°F).

How does the 20411TX Fitting ensure leak-free performance?

The leak-free performance of the 20411TX Fitting stems from its combination of precision-machined sealing surfaces and integrated O-ring design. The metric parallel threads ensure proper engagement without relying on thread deformation for sealing, while the O-ring creates a positive seal between mating surfaces. This dual sealing mechanism prevents leakage even under vibration and pressure fluctuations common in hydraulic systems, providing superior reliability compared to thread-sealant-dependent fittings.

What crimp specifications are required for hose assembly?

Crimp specifications vary depending on hose type and size, ranging from 0.70" to 1.85" crimp diameters for standard hose sizes. Always refer to the manufacturer's crimp specification chart for your specific hose and fitting combination. Proper crimping is critical—insufficient crimping may result in leaks or hose separation, while over-crimping can damage internal hose structures or fitting components. A calibrated crimping tool designed for metric fittings should always be used to ensure proper assembly.

Is the 20411TX Fitting compatible with biodegradable hydraulic fluids?

Yes, both the carbon steel and stainless steel versions of the 20411TX Fitting are compatible with most biodegradable hydraulic fluids, including vegetable oil-based and synthetic ester-based formulations. For these applications, we recommend specifying the Viton® O-ring option to ensure compatibility with the additives found in biodegradable fluids. Regular inspection is recommended when using biodegradable fluids, as they can sometimes exhibit different lubrication properties that may affect O-ring performance over time.