how to flare steel tubing for rubber hose

Steel tubing is commonly used in various industries for its durability and strength. When it is necessary to connect rubber hoses to steel tubing, flaring becomes an essential technique that ensures a secure and leak-proof joint. In this article, we will guide you through the process of flaring steel tubing for rubber hoses, providing step-by-step instructions and expert tips to help you achieve optimal results. Whether you are a beginner or an experienced professional, this comprehensive guide will equip you with the knowledge and skills needed to flawlessly flare steel tubing.

Flaring Steel Tubing: An Introduction

Understanding the importance of flaring steel tubing for rubber hoses is the first step towards mastering the technique. The process of flaring involves creating a conical end on the steel tubing that allows for a tight connection with the rubber hose. This flared end increases the surface area between the tubing and the hose, providing a secure joint and preventing any leaks or disconnections.

Essential Tools and Materials

Before starting the flaring process, it is important to gather all the necessary tools and materials. Here are the key items you will need:

1. Steel Tubing: Ensure you have the correct size and length of steel tubing required for your application. Measure and cut the tubing to the desired length using a tube cutter or a hacksaw.

2. Flaring Tool: Invest in a high-quality flaring tool that is suitable for your steel tubing diameter. There are various types of flaring tools available, including single-flare and double-flare options. Choose the appropriate one based on your specific needs.

3. Deburring Tool: A deburring tool is used to remove any sharp edges or burrs from the cut end of the steel tubing. This step is crucial for achieving a proper flare and ensuring a snug fit with the rubber hose.

4. Rubber Hoses: Select the appropriate size and type of rubber hose for your application. Ensure that the hose is compatible with the fluid or gas it will be carrying and can withstand the required pressure.

5. Lubricant: Apply a small amount of lubricant, such as oil or grease, to the inside of the rubber hose and the end of the steel tubing. This will facilitate the flaring process, making it easier to insert the hose onto the tubing.

Step-by-Step Guide to Flaring Steel Tubing for Rubber Hoses

Now that you have all the necessary tools and materials, let's dive into the step-by-step process of flaring steel tubing for rubber hoses:

Step 1: Cutting the Steel Tubing

Measure the required length of the steel tubing and mark it using a tubing cutter or a marking tool. Ensure that the cut is clean and straight for a proper flare. Use a tube cutter or a hacksaw to cut the tubing along the marked line.

Step 2: Deburring the Tubing

Once the tubing is cut, use a deburring tool to remove any burrs or uneven edges from the cut end. Rotate the deburring tool around the inside and outside of the tubing to achieve a smooth surface. This will prevent any interference during the flaring process.

Step 3: Inserting the Tubing into the Flaring Tool

Select the appropriate size adapter for the flaring tool based on the diameter of your steel tubing. Insert the tubing into the adapter until it touches the flaring cone. Ensure that the tubing is held securely in place.

Step 4: Flaring the Tubing

Using the flaring tool, gradually tighten the flaring cone against the steel tubing. Apply even pressure to create the desired flare shape. The cone should shape the end of the tubing smoothly without excessive force. Refer to the manufacturer's instructions for your specific flaring tool, as different tools may have varying techniques.

Step 5: Checking the Flare

Once the flare is formed, inspect it thoroughly for any imperfections. It should have a smooth and uniform shape, with no visible cracks or deformations. Check for a proper fit by attempting to insert the rubber hose onto the flared end. The hose should slide on smoothly and snugly without any gaps.

Tips for Flaring Steel Tubing Successfully

To ensure successful flaring of steel tubing for rubber hoses, here are some additional tips to keep in mind:

1. Practice on scrap tubing before attempting the process on your actual tubing to gain confidence and perfect your technique.

2. Use the correct size adapter and flaring cone for your tubing to achieve the desired flare shape and size.

3. Lubricate both the rubber hose and the steel tubing to ease the insertion process and minimize the risk of damage to the flare.

4. Always deburr the cut end of the tubing to ensure a clean and secure joint.

5. Inspect the flare carefully before connecting the rubber hose to verify its quality and prevent any potential leaks.

Conclusion

Flaring steel tubing for rubber hoses is an important skill for any professional or DIY enthusiast. By following the step-by-step guide and using the right tools and materials, you can achieve impeccable flares that withstand high pressure and provide a reliable connection. Remember to prioritize safety throughout the process and seek professional assistance if needed. With practice and patience, you will become proficient in flaring steel tubing and ensure efficient and leak-free operations in your applications.