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How to Care for Your Union BS 3799: Maintenance Tips and Tricks

How to Care for Your Union BS 3799 Maintenance Tips and Tricks

As an expert in the industrial piping industry, I have come across many clients who need to pay more attention to the importance of proper maintenance for their Union BS 3799 fittings. It’s imperative to ensure that your fittings are in good working condition, as they directly influence the performance and longevity of your entire piping system. In this blog post, I will share some maintenance tips and tricks for your products that will help you save money in the long run and ensure that your piping system operates efficiently.

What is BS 3799 Union?

Union BS 3799 is a British Standard for threaded pipe fittings, such as nuts, elbows, and tees. It specifies requirements for designing, producing, testing, and inspecting these fittings to ensure they meet applicable safety standards. The standard also outlines how manufacturers should apply quality assurance procedures in their businesses to ensure ongoing compliance with the standard’s requirements.

Proper cleaning and inspection techniques for Union BS 3799 fittings

Regular Cleaning & Inspection Procedures

One of the fundamental ways to properly care for your Union BS 3799 fittings is by cleansing and inspecting them regularly. This will help maintain efficient fluid flow and prevent any blockages that can lead to leaks. Before conducting any cleaning procedures, ensuring the fitting is fully disconnected is essential. You can clean your fittings with a soft-bristled brush or by using a non-abrasive cleaning solution. Once done, inspect the fitting closely for any signs of wear, tear, or damage. Spotting these issues early will help you replace or repair them before they escalate to serious problems.


Lubrication plays a vital role in keeping your Union BS 3799 fittings in good working condition, enabling them to work smoothly without any hindrances. Over time, fittings lose their lubrication and become increasingly difficult to operate, making it hard to connect and disconnect them. To prevent this, apply light lubrication oil to the fitting threads using a clean, soft cloth or brush. It’s advisable to avoid using excessive lubrication as this can often lead to contamination within the system.

Ensure Correct Installation Procedures

Proper installation procedures for these fittings must be emphasized. Poor installation procedures can lead to leaks and even ruptures in extreme cases, which can be costly to repair. To ensure a proper installation process, it’s important to seek the services of a professional to do the job. Union BS 3799 fittings feature a tapered thread, which requires PTFE tape or pipe dope during installation. As an expert, I would advise against using excessive threading as this can create a pressure point leading to damage to the sealing surface.

Replace Damaged Fittings

It can be tempting to use worn-out fittings, but this often leads to costly repairs. If you notice any damage to any Union BS 3799 fittings, replacing them for optimal performance is vital. It’s also important to adhere to the recommended replacement interval for each fitting to ensure the smooth operation of your piping system. Proper replacement intervals also help identify issues early on, allowing you to fix them before they become serious.

Ensure Proper Storage Practices

Lastly, ensuring that the Union BS 3799 fittings are stored in a clean, dry place is critical. It’s advisable to use protective caps during storage to prevent dust and debris from accumulating on the threads and sealing surfaces. Always store fittings away from sunlight, moisture, and extreme temperature changes, which can significantly impact their lifespan.


Proper care and maintenance of your Union BS 3799 fittings are crucial for your piping system’s optimal performance and durability. By adhering to these tips and tricks, you can prevent costly repairs and replacements in the long term, ensuring the smooth operation of your system. Remember, faulty fittings can lead to leaks, which can be dangerous to the environment and personnel working within the system. So, take proper care of your Union BS 3799 fittings to prevent these risks.

How to Care for Your Union BS 3799: Maintenance Tips and Tricks

by Surya Steel & Alloys time to read: 3 min