Bulkhead Hydraulic Fitting Manufacturer in China

❖Watertight

❖Easy to install

❖Prevent liquid leakage

❖Keep the liquid flowing freely

Product List

Bulkhead fittings pass through a bulkhead or a flat surface to connect fittings, hoses, or pipes. It is usually used in piping systems and is suitable for air, water, oil, and high-temperature environments. Bulkhead fitting usually consists of a threaded body, a nut for fixing, and a gasket. It provides a seal and watertight space that maximizes the free flow of liquids and allows you to transport liquids to wherever you need them. Topa produces high-quality bulkhead fittings which are manufactured according to international standards. These bulkhead fittings are watertight and can be used to transport water, air, and oil. Depending on the thread, material, and application, we can produce various types of bulkhead fittings, including JIC, metric, BSP, brass, and stainless steel. You can get more information about the bulkhead fittings by clicking on the image below.

Products Video

This product video showcases a comprehensive range of Hydraulic Bulkhead Fittings, designed to meet the diverse needs of industrial hydraulic systems. The video highlights various sizes, materials, and thread configurations available, giving viewers a clear view of the versatility and customization options these fittings offer. Whether you’re working with high-pressure systems or requiring corrosion-resistant materials for harsh environments, this video provides a detailed look at the quality and durability of our fittings.

These fittings are crafted to withstand extreme conditions, providing long-lasting performance in industrial, automotive, and construction applications. The visual focus is on the precision engineering that ensures a secure, leak-proof connection between hydraulic lines, a crucial feature for maintaining system integrity under pressure.

Click on the video for more details. If you have any needs, contact Topa, we can provide the best quality products!

Application

Thanks to the excellent watertight seal of bulkhead fitting, it is popular in the field of transporting liquids. You can often find bulkhead fittings in plumbing and piping systems. In addition to their use in plumbing, bulkhead fittings can also be found in a variety of other applications, including in the automotive brake systems, agriculture, industry, food processing, and transportation industries.

Technical Specifications

Hydraulic bulkhead fittings are essential components used to create secure, leak-proof connections between two sides of a hydraulic system barrier. Below are the key technical specifications and working principles for these fittings:

Pressure Rating

Hydraulic bulkhead fittings are available in various pressure ratings, typically ranging from up to 10,000 PSI (or higher), depending on the specific design, material, and application requirements. This ensures they can handle the high-pressure demands of hydraulic systems without failure.

Temperature Range

These fittings are designed to withstand a broad temperature range, typically from -40°C to 125°C. This makes them suitable for applications in extreme conditions, such as high-temperature machinery or cryogenic environments.

Fluid Compatibility

Hydraulic bulkhead fittings are compatible with various fluids commonly used in hydraulic systems, including hydraulic oils, water, water-glycol, and lubricants. The selection of materials and sealing options ensures these fittings can handle different fluid types without degradation.

Size Specifications

Nominal Diameter: Bulkhead fittings come in various sizes, typically ranging from 1/8 inch to 2 inches in nominal diameter, depending on the system’s requirements.

Thread Standards: Hydraulic bulkhead fittings are available with multiple thread options, such as:

NPT (National Pipe Thread) for tight seals in piping systems.

BSPP (British Standard Pipe Parallel) for applications that require parallel threads and a sealing mechanism.

SAE (Society of Automotive Engineers) threads, commonly used in North America and automotive systems.

Metric threads may also be available for international applications, particularly in Europe and Asia.

Material and Surface Treatment

Material

The bulkhead fittings are typically manufactured from 316 Stainless Steel, carbon steel, or galvanized steel. Stainless steel fittings are highly corrosion-resistant, making them ideal for harsh environments, including those exposed to moisture, chemicals, or extreme conditions.

Surface Treatment

The surface treatment of these fittings can include nickel plating, zinc coating, or passivation to prevent rust and enhance the durability of the fittings. Nickel plating, in particular, is commonly used for improved corrosion resistance in aggressive or marine environments.

Working Principle

Hydraulic bulkhead fittings operate by providing a secure, sealed connection between two hydraulic lines that pass through a wall, panel, or barrier. These fittings have an internal seal that prevents leakage, ensuring the safe and efficient operation of the hydraulic system.

Fluid Passage: The hydraulic fluid enters one side of the bulkhead fitting, flows through the fitting’s internal passage, and exits through the other side, typically connecting two different components or systems.

Sealing: The bulkhead fitting uses an internal seal or gasket that provides a tight seal around the fitting’s interface with the wall or barrier, preventing any leaks during operation.

Pressure Resistance: The fittings are designed to handle high-pressure systems and are often equipped with strong seals and reinforcement to ensure they can withstand internal fluid pressure without failure.

How to Install Bulkhead Fittings

Proper installation and maintenance of hydraulic bulkhead fittings are crucial for ensuring the long-term reliability and performance of hydraulic systems. Follow this step-by-step guide to install and maintain bulkhead fittings effectively.

Step-by-Step Installation Guide

Preparation

Tools Required:

Drill with the appropriate size bit.

Wrench for tightening.

Sealant (if needed).

Torque wrench.

Thread sealant tape (optional, depending on thread type).

Ensure Clean Work Area: Before starting, clean the installation area to remove any debris or contaminants that could affect the fitting’s seal.

Drilling the Hole

Measure and drill the hole through the panel or wall where the bulkhead fitting will be mounted.

For most bulkhead fittings, the required hole diameter is typically 1/8 inch to 2 inches larger than the fitting’s external diameter. Always refer to the manufacturer’s specification for the exact hole size.

Ensure the hole is smooth to avoid damaging the fitting or seal when installing.

Installing the Fitting

Insert the Fitting: Insert the bulkhead fitting through the drilled hole. Ensure the fitting passes through the panel or wall cleanly without any resistance.

Apply Sealant: Apply a small amount of thread sealant or gasket sealant around the threads or on the sealing surface of the fitting. This is particularly important for applications where leaks must be avoided, such as high-pressure systems. Make sure to use a sealant that is compatible with the fluid type used in the system.

Tightening the Fitting

Use a Wrench: Tighten the bulkhead fitting using a wrench. Be careful not to over-tighten, as this can damage the fitting or cause the seal to fail.

Torque Control: Use a torque wrench to ensure you apply the correct torque. The torque specification will vary based on the material, size, and thread type. For example:

For stainless steel fittings, a typical torque range could be 30-50 ft-lbs (depending on the fitting size).

Always refer to the manufacturer’s recommendations for the precise torque value.

Secure the Fitting: Once tightened, ensure the bulkhead fitting is securely in place and that it does not move when pressure is applied to the system.

Get Free Quotation！

Explore our full range of hydraulic bulkhead fittings today and find the perfect solution for your system—request a quote now!

Your Reliable Bulkhead Hydraulic Fitting Supplier

High Pressure Resistance

Durability under Pressure: Hydraulic bulkhead fittings are designed to withstand high-pressure systems, with pressure ratings typically ranging from 3,000 PSI to 10,000 PSI or more. This makes them ideal for use in industries where high-pressure operations are critical, such as construction machinery, automotive applications, and industrial systems.

Leak-Proof Design

Leak Prevention: One of the most important features of bulkhead fittings is their leak-proof design. These fittings provide a secure, sealed connection between hydraulic lines, ensuring that no fluid leaks occur under pressure. This is achieved through advanced sealing technologies, such as O-rings and gaskets, that tightly seal the connection points.

Corrosion-Resistant Materials

Stainless Steel: Many hydraulic bulkhead fittings are made from 316 stainless steel, which offers excellent resistance to corrosion and high temperatures. This makes them ideal for use in harsh environments, such as offshore or marine applications, and industries where the fittings are exposed to moisture or corrosive chemicals.

Carbon Steel Options: For more cost-effective solutions, carbon steel fittings are also available. These are often coated or treated to improve their corrosion resistance, making them suitable for a wide range of industrial environments.

Lightweight Construction

Reduced System Weight: Bulkhead fittings, particularly those made from high-strength aluminum or lightweight stainless steel, offer a significant weight advantage over traditional components. This can be crucial in applications where minimizing the weight of the hydraulic system is important, such as in aerospace or automotive industries.

Why Choose Us

Topa has over 20 years of experience in the manufacture of hydraulic fittings. These years of manufacturing experience have made Topa skilled in producing a wide range of high-quality hydraulic fittings including bulkhead fittings. You can buy our products confidently, and we will provide you with the best service and products.

Professional and reliable

Topa has many years of experience in manufacturing hydraulic fittings and has gained many regular customers. We have professional hydraulic knowledge to provide you with reliable service.

Fast transportation

Topa can provide you with various types of shipping such as land transportation, water transportation, and air transportation to get products to you as quickly as possible.

Professional customer service

Topa has a highly trained customer service team, and we can provide professional services 24 hours a day. If you have questions about products, feel free to contact Topa’s customer service staff and we will answer them all.

Complete after-sales service

After receiving the product, if the product has any quality problems, or you have other questions about the product, please feel free to contact us, and we will try our best to solve the problem for you.

Strict quality control

Topa applies strict quality control to each product before and during production, and rigorous testing after production in order to provide you with the best product.

FAQ

What is a bulkhead fitting?

Bulkhead fitting is a kind of fitting that can provide a watertight connection to prevent liquid leakage, mostly used to connect two hoses separated by walls or other panels.

Why use a bulkhead fitting?

Bulkhead fittings provide a secure and watertight connection to prevent fluid leakage and can maintain system pressure and flow rates.

How to install a bulkhead fitting?

First, drill a hole in the wall where the bulkhead fitting is to be installed, then pass the bulkhead fitting through the hole and fix it with a nut.

What are the applications of hydraulic bulkhead fittings?

Bulkhead fittings are commonly used in plumbing systems, in addition to plumbing systems, they are also found in hydraulic systems.

What are the sizes of bulkhead connectors?

Leakage of hydraulic bulkhead fittings may be caused by damaged gaskets or fittings that are not screwed in tightly or too tightly.

What types of bulkhead fittings are available?

Commonly used bulkhead fittings are hose fittings, tees, brake fittings, and barbed fittings.

What needs to consider before buying a bulkhead fitting?

There are three main factors you need to consider: hose size, material, and pressure. Once you have determined the criteria you can purchase as needed.

What are the parts of the bulkhead fitting?

It consists of the body which has threads on it and a nut. In some cases, there will be a gasket as well.

What are the advantages of bulkhead fitting?

bulkhead fittings provide a watertight connection to prevent fluid leakage, and they also ensure the free flow of fluid. Sometimes they are also used as diversion outlets in piping systems.

What are bulkhead connectors made of?

Metal, PVC, or plastic, but Topa only offers metal bulkheads.