Table of Contents

Hydraulic Bulkhead Fittings are specialized connectors used to link tubes or hoses through a bulkhead or panel. They play a crucial role in hydraulic systems, ensuring that fluids are transferred efficiently and securely.

bite type pipe fitting
bite type tube fitting

Importance in Industrial Applications

These fittings are indispensable in various industrial applications, including manufacturing, construction, and automotive sectors. They ensure that hydraulic systems operate flawlessly, thereby reducing downtime and increasing productivity.

Types of Hydraulic Bulkhead Fittings


Unions are simple yet effective fittings that connect two pipes. They are easy to install and remove, making them ideal for applications requiring frequent disassembly.

Tee Adapters

Tee adapters are T-shaped fittings that allow for the connection of three separate pipes. They are often used in branching circuits.


Locknuts are used to secure other types of fittings onto a bulkhead or panel, ensuring a tight and secure connection.

Metric Bulkhead Adapters

These are specialized adapters that come in various forms, such as straight or 90-degree elbow adapters, to connect tubes or hoses through a bulkhead.

Hydraulic Bulkhead Fittings 6C/6D 6C9/6D9

Metric Light and Heavy Series

These adapters come in both light and heavy series, offering options for different pressure requirements.

Cutting ring and locking nuts ensure a secure and reliable connection.

Metric Male 24 degree Cone Light Type 90 Degree Elbow Bulkhead Hydraulic Adapter 6C9/6D9 6C9-RN 6D9-RN

This is a 90-degree elbow hydraulic adapter with similar features and benefits as the 6C adapter but allows for angular connections.

90°Elbow Hydraulic Bulkhead Fittings 6C9/6D9 6C9-RN/6D9-RN
90° Elbow Hydraulic Bulkhead Fittings 6C9/6D9 6C9-RN/6D9-RN

Metric Male 24 Degree Cone Light Type Straight Bulkhead Hydraulic Fitting 6C/6D 6C-LN/RN 6D-LN/RN

This is a straight hydraulic adapter designed for connecting tube or hoses through a bulkhead. It’s known for its reliability and ease of maintenance.

Straight Hydraulic Bulkhead Fittings 6C/6D 6C-LN/RN 6D-LN/RN
Straight Hydraulic Bulkhead Fittings 6C/6D 6C-LN/RN 6D-LN/RN

Material and Surface Treatment

Carbon Steel

Most hydraulic bulkhead fittings are made of carbon steel due to its strength and durability.

Custom Material

Upon customer request, other materials like stainless steel or brass can be used.

Zinc Coating

Zinc coating is often applied for added corrosion resistance, although other surface treatments can be applied as per customer requirements.

Features and Benefits


One of the primary advantages of these fittings is their leak-free design, crucial for maintaining system integrity.


These fittings are built to last, ensuring that your hydraulic systems remain operational over long periods.

Easy to Maintain

Their straightforward design makes them easy to maintain, saving both time and resources.


These fittings can be customized to meet specific requirements, offering flexibility in various applications.

Product Standards

Eaton Standard

These fittings often meet the Eaton standard, a benchmark in the industry for quality and reliability.

Parker Standard

Another common standard these fittings meet is the Parker standard, known for its stringent quality controls.

American Standard

Some fittings are also designed to meet American standards, ensuring compatibility and quality.


Various thread forms are available to suit different applications.

REACH and ROHS Compliance

All fittings are compliant with REACH and ROHS standards, ensuring they are environmentally friendly.

Choosing the Right Fitting

Factors to Consider

When selecting a fitting, consider factors like material, pressure ratings, and compatibility with existing systems.

Customization Options

Custom fittings can be manufactured to meet unique requirements.

Maintenance and Troubleshooting

Regular Checks

Regular maintenance checks are essential for ensuring the longevity of your fittings.

When to Replace

Knowing when to replace fittings can save you from potential system failures.


Hydraulic bulkhead fittings are essential components in various industrial applications. Understanding their types, materials, and features can help you make an informed decision for your specific needs.

HQ hydraulic parts
HQ hydraulic parts


  1. What are the most common materials used for hydraulic bulkhead fittings?
    • Carbon steel is the most common, but custom materials can be used.
  2. How do I know when to replace a fitting?
    • Regular maintenance checks and monitoring for leaks are key indicators.
  3. Are these fittings environmentally friendly?
    • Yes, they are REACH and ROHS compliant.
  4. What are the customization options?
    • Material, thread forms, and pressure ratings can be customized.
  5. Can these fittings be used in high-pressure systems?
    • Yes, especially those made from high-pressure steel and stainless materials.
Contact Us
Please enable JavaScript in your browser to complete this form.
Related Products
Factory Direct OEM ODM BSP Hydraulic Fitting Male Nipple Straight Bulkhead Connector
error: Content is protected !!