Do You Know the Pros and Cons of Metal and Plastic Quick Disconnects?

1 Min Read

As liquid cooling is increasingly deployed in high-performance computing and data center applications, these industries demand fittings like quick disconnect couplings (QDs) purpose-built for their needs. While metal has historically been the material of choice due to its strength and durability, metal’s weight, cost and corrosion susceptibility have prompted thermal engineers and liquid cooling system designers to look for alternative materials. High-performance thermoplastic has emerged as a material that rivals, and in some cases, surpasses metal. For example, connectors made with polyphenylsulfone (PPSU) deliver the benefits of plastic—lightweight, cost-effective and non-corroding—with robustness comparable to metal. So how do you select the right QD? Take into account factors such as: pressure, temperature, flow rate, environmental exposure and chemical compatibility.

Additional factors to consider when choosing QDs include:

  • Ease of use

  • Weight

  • Cost

  • The ability to hot swap without risking leaks

  • Robustness for long periods of connection

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