Screw-to-connect quick couplings are a type of hydraulic coupling that uses a threaded mechanism for connection and disconnection, rather than a simple push or pull. This design ensures a more secure and robust connection, especially in high-pressure or high-vibration environments.
Threaded Connection: The male and female parts of the coupling are screwed together, which provides a secure and leak-resistant seal. The threaded connection also prevents accidental disconnection, making it ideal for applications where safety and reliability are critical.
High Pressure and High Flow: These couplings are designed to handle very high hydraulic pressures and flow rates, much higher than typical push-to-connect couplings. This makes them suitable for demanding applications, such as heavy construction equipment, oil & gas, and industrial machinery.

• • Resistant to Hydraulic Shock: Screw-to-connect couplings can withstand hydraulic shock (sudden pressure spikes) and vibration better than some other coupling types. This durability is especially useful in harsh environments or when equipment is subjected to frequent movement or stress.
  • Connection Under Pressure: Many screw-to-connect couplings are designed to be connected and disconnected even when hydraulic pressure is present on one or both sides, a key feature in certain industrial and mobile applications where depressurizing the system is impractical.
  • Applications: These couplings are commonly found in heavy-duty equipment, such as excavators, hydraulic hammers, oil rigs, and mining machinery, where durability, strength, and the ability to handle high pressures are essential.

Although the screw mechanism requires a bit more time for connection than push to connect couplings, the added security and performance under demanding conditions make them a preferred choice for many heavy-duty applications.