Choose the Right TC Union Fittings for Your Operations in 2023

In any industrial application, selecting the right components and equipment is crucial for the system’s successful operation. TC (Tri-Clamp) union fittings are commonly use in the food, beverage, pharmaceutical, and chemical industries to connect and disconnect piping systems. These fittings consist of a clamp, gasket, and ferrule, making them easy to install and remove.

However, with many available options, choosing the right TC union fittings for your operations can take time and effort.

This article will explore the factors you must consider when selecting TC union fittings.

Material Compatibility

Material compatibility is the first and foremost factor to consider when selecting. The material used in the fitting must be compatible with the fluid or gas flowing through the system. Different materials have different chemical properties; some may react with certain chemicals, causing corrosion or contamination.

For example, in the food and beverage industry, fittings are common of stainless steel, which is resistant to corrosion and can withstand high temperatures. In the pharmaceutical industry, these fittings materials, such as PTFE or PVDF, are prefer for their resistance to aggressive chemicals.

Pressure and Temperature Rating

The pressure and temperature rating of TC union fittings is another critical factor. The fitting must be able to withstand the pressure and temperature of the system without leaking or failing.

Most TC union fittings are rate for a maximum pressure of 150 PSI and a temperature range of -20°F to 450°F. However, checking the manufacturer’s specifications ensures the fitting suits your application.

Size and Shape

TC union fittings come in different sizes and shapes to fit different piping systems. It’s essential to select a fitting that matches the size and shape of the piping system. If the fitting is too large or small, it can cause leakage or compromise the system’s integrity.

Surface Finish

The surface finish of TC union fittings can impact the system’s cleanliness. A rough surface can create pockets where bacteria can grow, leading to the contamination of the product. A smooth surface, on the other hand, is easy to clean and reduces the risk of contamination.

For applications in the food and beverage industry, a polish surface is prefer to ensure that there are no areas where bacteria can grow. In the pharmaceutical industry, fittings with a high-quality electropolish finish are preferred to minimize contamination risk.


The cost of TC union fittings can vary significantly depending on the material, size, and shape. While cost is an essential factor, balancing cost and quality. 

Choosing the cheapest TC union fitting may seem like a cost-effective solution in the short term, but it can lead to higher costs in the long term. Cheap fittings are often of inferior materials, have poor performance ratings, and are more prone to failure, resulting in costly repairs, replacement, and downtime.

Ease of Installation and Maintenance

Also, it is essential to consider the ease of installation and maintenance when selecting. Complex fittings can be challenging to install and maintain, leading to downtime and increased maintenance costs. Look for fittings that are easy to install and maintain, with simple designs that minimize the risk of errors and failures.


These fittings are essential in many industrial applications, including food and beverage, pharmaceuticals, chemicals, and semiconductors. Selecting the right TC union fitting for your operations requires careful consideration of various factors, including size, design, pressure and temperature ratings, material compatibility, cost, and manufacturer reputation.

Consulting with experts and referring to relevant standards and regulations can help ensure that the chosen TC union fitting meets your application’s requirements and safety standards. Investing in high-quality union fittings can help prevent costly mistakes, equipment failures, and safety hazards and ensure smooth and reliable operations.

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